43 files changed, 3277 insertions, 2651 deletions
diff --git a/gcc/ada/Make-lang.in b/gcc/ada/Make-lang.in
index 967742d..4cde6f00 100644
--- a/gcc/ada/Make-lang.in
+++ b/gcc/ada/Make-lang.in
@@ -930,33 +930,40 @@ ada/b_gnatb.c : $(GNATBIND_OBJS) ada/gnatbind.o ada/interfac.o
 	$(GNATBIND) -C $(ADA_INCLUDES) -o ada/b_gnatb.c ada/gnatbind.ali
 ada/b_gnatb.o : ada/b_gnatb.c
 
+# We delete the files before copying, below, in case they are read-only.
 ada/treeprs.ads : ada/treeprs.adt ada/sinfo.ads ada/xtreeprs.adb
 	-$(MKDIR) ada/bldtools/treeprs
+	$(RM) $(addprefix ada/bldtools/treeprs/,$(notdir $^))
 	$(CP) $^ ada/bldtools/treeprs
 	(cd ada/bldtools/treeprs; $(GNATMAKE) -q xtreeprs ; ./xtreeprs ../../treeprs.ads )
 
 ada/einfo.h : ada/einfo.ads ada/einfo.adb ada/xeinfo.adb
 	-$(MKDIR) ada/bldtools/einfo
+	$(RM) $(addprefix ada/bldtools/einfo/,$(notdir $^))
 	$(CP) $^ ada/bldtools/einfo
 	(cd ada/bldtools/einfo; $(GNATMAKE) -q xeinfo ; ./xeinfo ../../einfo.h )
 
 ada/sinfo.h : ada/sinfo.ads ada/xsinfo.adb
 	-$(MKDIR) ada/bldtools/sinfo
+	$(RM) $(addprefix ada/bldtools/sinfo/,$(notdir $^))
 	$(CP) $^ ada/bldtools/sinfo
 	(cd ada/bldtools/sinfo; $(GNATMAKE) -q xsinfo ; ./xsinfo ../../sinfo.h )
 
 ada/nmake.adb : ada/sinfo.ads ada/nmake.adt ada/xnmake.adb
 	-$(MKDIR) ada/bldtools/nmake_b
+	$(RM) $(addprefix ada/bldtools/nmake_b/,$(notdir $^))
 	$(CP) $^ ada/bldtools/nmake_b
 	(cd ada/bldtools/nmake_b; $(GNATMAKE) -q xnmake ; ./xnmake -b ../../nmake.adb )
 
 ada/nmake.ads :  ada/sinfo.ads ada/nmake.adt ada/xnmake.adb ada/nmake.adb
 	-$(MKDIR) ada/bldtools/nmake_s
+	$(RM) $(addprefix ada/bldtools/nmake_s/,$(notdir $^))
 	$(CP) $^ ada/bldtools/nmake_s
 	(cd ada/bldtools/nmake_s; $(GNATMAKE) -q xnmake ; ./xnmake -s ../../nmake.ads )
 
 update-sources : ada/treeprs.ads ada/einfo.h ada/sinfo.h ada/nmake.adb \
 	ada/nmake.ads
+	$(RM) $(addprefix $(srcdir)/ada/,$(notdir $^))
 	$(CP) $^ $(srcdir)/ada
 
 ada/sdefault.adb: ada/stamp-sdefault ; @true
@@ -1137,10 +1144,10 @@ ada/utils2.o : ada/utils2.c $(CONFIG_H) $(SYSTEM_H) coretypes.h $(TM_H) \
 #
 # GNAT DEPENDENCIES
 # regular dependencies
-ada/a-charac.o : ada/ada.ads ada/a-charac.ads ada/system.ads
+ada/a-charac.o : ada/ada.ads ada/a-charac.ads ada/system.ads 
 
 ada/a-chlat1.o : ada/ada.ads ada/a-charac.ads ada/a-chlat1.ads \
-   ada/system.ads
+   ada/system.ads 
 
 ada/a-clrefi.o : ada/ada.ads ada/a-comlin.ads ada/a-clrefi.ads \
    ada/a-clrefi.adb ada/a-except.ads ada/a-unccon.ads ada/a-uncdea.ads \
@@ -1155,172 +1162,194 @@ ada/a-comlin.o : ada/ada.ads ada/a-comlin.ads ada/a-comlin.adb \
    ada/s-stoele.adb 
 
 ada/a-elchha.o : ada/ada.ads ada/a-except.ads ada/a-elchha.ads \
-   ada/a-elchha.adb ada/system.ads ada/s-parame.ads ada/s-soflin.ads \
-   ada/s-stache.ads ada/s-stalib.ads ada/s-stoele.ads ada/s-stoele.adb \
-   ada/s-traent.ads ada/unchconv.ads
+   ada/a-elchha.adb ada/a-unccon.ads ada/system.ads ada/s-parame.ads \
+   ada/s-soflin.ads ada/s-stache.ads ada/s-stalib.ads ada/s-stoele.ads \
+   ada/s-stoele.adb ada/s-traent.ads 
 
 ada/a-except.o : ada/ada.ads ada/a-except.ads ada/a-except.adb \
    ada/a-exexda.adb ada/a-exextr.adb ada/a-elchha.ads ada/a-excpol.adb \
-   ada/a-exstat.adb ada/system.ads ada/s-exctab.ads ada/s-parame.ads \
-   ada/s-secsta.ads ada/s-soflin.ads ada/s-stache.ads ada/s-stalib.ads \
-   ada/s-stoele.ads ada/s-stoele.adb ada/s-traent.ads ada/s-traent.adb \
-   ada/unchconv.ads
+   ada/a-exstat.adb ada/a-unccon.ads ada/system.ads ada/s-exctab.ads \
+   ada/s-except.ads ada/s-parame.ads ada/s-secsta.ads ada/s-soflin.ads \
+   ada/s-stache.ads ada/s-stalib.ads ada/s-stoele.ads ada/s-stoele.adb \
+   ada/s-strops.ads ada/s-sopco3.ads ada/s-sopco4.ads ada/s-sopco5.ads \
+   ada/s-traent.ads ada/s-traent.adb 
 
 ada/a-ioexce.o : ada/ada.ads ada/a-except.ads ada/a-ioexce.ads \
-   ada/system.ads ada/s-exctab.ads ada/s-exctab.adb ada/s-htable.ads \
-   ada/s-parame.ads ada/s-soflin.ads ada/s-stache.ads ada/s-stalib.ads \
-   ada/s-stoele.ads ada/s-stoele.adb ada/s-traent.ads ada/unchconv.ads
-
-ada/ada.o : ada/ada.ads ada/system.ads
-
-ada/ali-util.o : ada/ada.ads ada/a-except.ads ada/a-uncdea.ads ada/ali.ads \
-   ada/ali-util.ads ada/ali-util.adb ada/alloc.ads ada/binderr.ads \
-   ada/casing.ads ada/csets.ads ada/debug.ads ada/err_vars.ads \
-   ada/gnat.ads ada/g-htable.ads ada/s-os_lib.ads ada/s-string.ads \
-   ada/s-utf_32.ads ada/s-utf_32.adb ada/gnatvsn.ads ada/hostparm.ads \
-   ada/interfac.ads ada/lib.ads ada/namet.ads ada/namet.adb ada/opt.ads \
-   ada/osint.ads ada/output.ads ada/rident.ads ada/scans.ads ada/scng.ads \
-   ada/scng.adb ada/sinput.ads ada/sinput.adb ada/sinput-c.ads \
-   ada/snames.ads ada/stringt.ads ada/stringt.adb ada/styleg.ads \
-   ada/styleg.adb ada/stylesw.ads ada/system.ads ada/s-carun8.ads \
-   ada/s-crc32.ads ada/s-crc32.adb ada/s-exctab.ads ada/s-htable.ads \
-   ada/s-htable.adb ada/s-memory.ads ada/s-parame.ads ada/s-rident.ads \
-   ada/s-secsta.ads ada/s-soflin.ads ada/s-stache.ads ada/s-stalib.ads \
-   ada/s-stoele.ads ada/s-stoele.adb ada/s-traent.ads ada/s-unstyp.ads \
-   ada/s-wchcon.ads ada/table.ads ada/table.adb ada/tree_io.ads \
-   ada/types.ads ada/types.adb ada/uintp.ads ada/uintp.adb \
+   ada/a-unccon.ads ada/system.ads ada/s-exctab.ads ada/s-exctab.adb \
+   ada/s-htable.ads ada/s-parame.ads ada/s-soflin.ads ada/s-stache.ads \
+   ada/s-stalib.ads ada/s-stoele.ads ada/s-stoele.adb ada/s-traent.ads 
+
+ada/ada.o : ada/ada.ads ada/system.ads 
+
+ada/ali-util.o : ada/ada.ads ada/a-except.ads ada/a-unccon.ads \
+   ada/a-uncdea.ads ada/ali.ads ada/ali-util.ads ada/ali-util.adb \
+   ada/alloc.ads ada/binderr.ads ada/casing.ads ada/csets.ads \
+   ada/debug.ads ada/err_vars.ads ada/gnat.ads ada/g-htable.ads \
+   ada/gnatvsn.ads ada/hostparm.ads ada/interfac.ads ada/namet.ads \
+   ada/namet.adb ada/opt.ads ada/osint.ads ada/output.ads ada/rident.ads \
+   ada/scans.ads ada/scng.ads ada/scng.adb ada/sinput.ads ada/sinput.adb \
+   ada/sinput-c.ads ada/snames.ads ada/stringt.ads ada/stringt.adb \
+   ada/styleg.ads ada/styleg.adb ada/stylesw.ads ada/system.ads \
+   ada/s-carun8.ads ada/s-crc32.ads ada/s-crc32.adb ada/s-exctab.ads \
+   ada/s-htable.ads ada/s-htable.adb ada/s-memory.ads ada/s-os_lib.ads \
+   ada/s-parame.ads ada/s-rident.ads ada/s-secsta.ads ada/s-soflin.ads \
+   ada/s-stache.ads ada/s-stalib.ads ada/s-stoele.ads ada/s-stoele.adb \
+   ada/s-strops.ads ada/s-sopco3.ads ada/s-sopco4.ads ada/s-sopco5.ads \
+   ada/s-string.ads ada/s-traent.ads ada/s-unstyp.ads ada/s-utf_32.ads \
+   ada/s-utf_32.adb ada/s-wchcon.ads ada/table.ads ada/table.adb \
+   ada/tree_io.ads ada/types.ads ada/types.adb ada/uintp.ads ada/uintp.adb \
    ada/unchconv.ads ada/unchdeal.ads ada/urealp.ads ada/urealp.adb \
-   ada/widechar.ads
-
-ada/ali.o : ada/ada.ads ada/a-except.ads ada/a-uncdea.ads ada/ali.ads \
-   ada/ali.adb ada/alloc.ads ada/butil.ads ada/casing.ads ada/debug.ads \
-   ada/fname.ads ada/gnat.ads ada/g-htable.ads ada/s-os_lib.ads \
-   ada/s-string.ads ada/gnatvsn.ads ada/hostparm.ads ada/interfac.ads \
-   ada/namet.ads ada/namet.adb ada/opt.ads ada/osint.ads ada/output.ads \
-   ada/rident.ads ada/system.ads ada/s-exctab.ads ada/s-exctab.adb \
-   ada/s-htable.ads ada/s-htable.adb ada/s-memory.ads ada/s-parame.ads \
+   ada/widechar.ads 
+
+ada/ali.o : ada/ada.ads ada/a-except.ads ada/a-unccon.ads ada/a-uncdea.ads \
+   ada/ali.ads ada/ali.adb ada/alloc.ads ada/butil.ads ada/casing.ads \
+   ada/debug.ads ada/fname.ads ada/gnat.ads ada/g-htable.ads \
+   ada/gnatvsn.ads ada/hostparm.ads ada/interfac.ads ada/namet.ads \
+   ada/namet.adb ada/opt.ads ada/osint.ads ada/output.ads ada/rident.ads \
+   ada/system.ads ada/s-exctab.ads ada/s-exctab.adb ada/s-htable.ads \
+   ada/s-htable.adb ada/s-memory.ads ada/s-os_lib.ads ada/s-parame.ads \
    ada/s-rident.ads ada/s-secsta.ads ada/s-soflin.ads ada/s-stache.ads \
-   ada/s-stalib.ads ada/s-stoele.ads ada/s-stoele.adb ada/s-traent.ads \
-   ada/s-unstyp.ads ada/s-wchcon.ads ada/table.ads ada/table.adb \
-   ada/tree_io.ads ada/types.ads ada/unchconv.ads ada/unchdeal.ads \
-   ada/widechar.ads
+   ada/s-stalib.ads ada/s-stoele.ads ada/s-stoele.adb ada/s-strops.ads \
+   ada/s-sopco3.ads ada/s-sopco4.ads ada/s-sopco5.ads ada/s-string.ads \
+   ada/s-traent.ads ada/s-unstyp.ads ada/s-wchcon.ads ada/table.ads \
+   ada/table.adb ada/tree_io.ads ada/types.ads ada/unchconv.ads \
+   ada/unchdeal.ads ada/widechar.ads 
 
-ada/alloc.o : ada/alloc.ads ada/system.ads
+ada/alloc.o : ada/alloc.ads ada/system.ads 
 
-ada/atree.o : ada/ada.ads ada/a-except.ads ada/a-uncdea.ads ada/alloc.ads \
-   ada/atree.ads ada/atree.adb ada/casing.ads ada/debug.ads ada/einfo.ads \
-   ada/einfo.adb ada/elists.ads ada/elists.adb ada/gnat.ads \
-   ada/g-htable.ads ada/s-os_lib.ads ada/s-string.ads ada/hostparm.ads \
+ada/atree.o : ada/ada.ads ada/a-except.ads ada/a-unccon.ads \
+   ada/a-uncdea.ads ada/alloc.ads ada/atree.ads ada/atree.adb \
+   ada/casing.ads ada/debug.ads ada/einfo.ads ada/einfo.adb ada/elists.ads \
+   ada/elists.adb ada/gnat.ads ada/g-htable.ads ada/hostparm.ads \
    ada/interfac.ads ada/namet.ads ada/namet.adb ada/nlists.ads \
    ada/nlists.adb ada/opt.ads ada/output.ads ada/sinfo.ads ada/sinfo.adb \
    ada/sinput.ads ada/snames.ads ada/stand.ads ada/system.ads \
    ada/s-exctab.ads ada/s-htable.ads ada/s-htable.adb ada/s-imgenu.ads \
-   ada/s-memory.ads ada/s-parame.ads ada/s-secsta.ads ada/s-soflin.ads \
-   ada/s-stache.ads ada/s-stalib.ads ada/s-stoele.ads ada/s-stoele.adb \
-   ada/s-traent.ads ada/s-unstyp.ads ada/s-wchcon.ads ada/table.ads \
-   ada/table.adb ada/tree_io.ads ada/types.ads ada/uintp.ads ada/uintp.adb \
-   ada/unchconv.ads ada/unchdeal.ads ada/urealp.ads ada/widechar.ads
-
-ada/back_end.o : ada/ada.ads ada/a-except.ads ada/alloc.ads ada/atree.ads \
-   ada/atree.adb ada/back_end.ads ada/back_end.adb ada/casing.ads \
-   ada/debug.ads ada/einfo.ads ada/einfo.adb ada/elists.ads ada/fname.ads \
-   ada/gnat.ads ada/g-hesora.ads ada/g-htable.ads ada/s-os_lib.ads \
-   ada/s-string.ads ada/hostparm.ads ada/lib.ads ada/lib.adb \
-   ada/lib-list.adb ada/lib-sort.adb ada/namet.ads ada/nlists.ads \
-   ada/nlists.adb ada/opt.ads ada/osint.ads ada/osint-c.ads ada/output.ads \
-   ada/sinfo.ads ada/sinfo.adb ada/sinput.ads ada/sinput.adb \
-   ada/snames.ads ada/stand.ads ada/stringt.ads ada/switch.ads \
-   ada/switch-c.ads ada/system.ads ada/s-exctab.ads ada/s-htable.ads \
-   ada/s-imgenu.ads ada/s-memory.ads ada/s-parame.ads ada/s-secsta.ads \
+   ada/s-memory.ads ada/s-os_lib.ads ada/s-parame.ads ada/s-secsta.ads \
    ada/s-soflin.ads ada/s-stache.ads ada/s-stalib.ads ada/s-stoele.ads \
-   ada/s-stoele.adb ada/s-traent.ads ada/s-unstyp.ads ada/s-wchcon.ads \
-   ada/table.ads ada/table.adb ada/tree_io.ads ada/types.ads ada/uintp.ads \
-   ada/uintp.adb ada/uname.ads ada/unchconv.ads ada/unchdeal.ads \
-   ada/urealp.ads ada/widechar.ads
+   ada/s-stoele.adb ada/s-strops.ads ada/s-sopco3.ads ada/s-sopco4.ads \
+   ada/s-sopco5.ads ada/s-string.ads ada/s-traent.ads ada/s-unstyp.ads \
+   ada/s-wchcon.ads ada/table.ads ada/table.adb ada/tree_io.ads \
+   ada/types.ads ada/uintp.ads ada/uintp.adb ada/unchconv.ads \
+   ada/unchdeal.ads ada/urealp.ads ada/widechar.ads 
 
-ada/bcheck.o : ada/ada.ads ada/a-except.ads ada/ali.ads ada/ali-util.ads \
-   ada/ali-util.adb ada/alloc.ads ada/bcheck.ads ada/bcheck.adb \
-   ada/binderr.ads ada/butil.ads ada/casing.ads ada/csets.ads \
-   ada/debug.ads ada/err_vars.ads ada/fname.ads ada/gnat.ads \
-   ada/g-htable.ads ada/s-os_lib.ads ada/s-string.ads ada/s-utf_32.ads \
-   ada/gnatvsn.ads ada/hostparm.ads ada/interfac.ads ada/lib.ads \
-   ada/namet.ads ada/namet.adb ada/opt.ads ada/osint.ads ada/output.ads \
-   ada/rident.ads ada/scans.ads ada/scng.ads ada/scng.adb ada/sinput.ads \
-   ada/sinput-c.ads ada/snames.ads ada/stringt.ads ada/styleg.ads \
-   ada/styleg.adb ada/stylesw.ads ada/system.ads ada/s-crc32.ads \
-   ada/s-exctab.ads ada/s-htable.ads ada/s-imgenu.ads ada/s-memory.ads \
+ada/back_end.o : ada/ada.ads ada/a-except.ads ada/a-unccon.ads \
+   ada/a-uncdea.ads ada/alloc.ads ada/atree.ads ada/atree.adb \
+   ada/back_end.ads ada/back_end.adb ada/casing.ads ada/debug.ads \
+   ada/einfo.ads ada/einfo.adb ada/elists.ads ada/fname.ads ada/gnat.ads \
+   ada/g-hesora.ads ada/g-htable.ads ada/hostparm.ads ada/lib.ads \
+   ada/lib.adb ada/lib-list.adb ada/lib-sort.adb ada/namet.ads \
+   ada/nlists.ads ada/nlists.adb ada/opt.ads ada/osint.ads ada/osint-c.ads \
+   ada/output.ads ada/sinfo.ads ada/sinfo.adb ada/sinput.ads \
+   ada/sinput.adb ada/snames.ads ada/stand.ads ada/stringt.ads \
+   ada/switch.ads ada/switch-c.ads ada/system.ads ada/s-exctab.ads \
+   ada/s-htable.ads ada/s-imgenu.ads ada/s-memory.ads ada/s-os_lib.ads \
+   ada/s-parame.ads ada/s-secsta.ads ada/s-soflin.ads ada/s-stache.ads \
+   ada/s-stalib.ads ada/s-stoele.ads ada/s-stoele.adb ada/s-strops.ads \
+   ada/s-sopco3.ads ada/s-sopco4.ads ada/s-sopco5.ads ada/s-string.ads \
+   ada/s-traent.ads ada/s-unstyp.ads ada/s-wchcon.ads ada/table.ads \
+   ada/table.adb ada/tree_io.ads ada/types.ads ada/uintp.ads ada/uintp.adb \
+   ada/uname.ads ada/unchconv.ads ada/unchdeal.ads ada/urealp.ads \
+   ada/widechar.ads 
+
+ada/bcheck.o : ada/ada.ads ada/a-except.ads ada/a-unccon.ads \
+   ada/a-uncdea.ads ada/ali.ads ada/ali-util.ads ada/ali-util.adb \
+   ada/alloc.ads ada/bcheck.ads ada/bcheck.adb ada/binderr.ads \
+   ada/butil.ads ada/casing.ads ada/csets.ads ada/debug.ads \
+   ada/err_vars.ads ada/fname.ads ada/gnat.ads ada/g-htable.ads \
+   ada/gnatvsn.ads ada/hostparm.ads ada/interfac.ads ada/namet.ads \
+   ada/namet.adb ada/opt.ads ada/osint.ads ada/output.ads ada/rident.ads \
+   ada/scans.ads ada/scng.ads ada/scng.adb ada/sinput.ads ada/sinput-c.ads \
+   ada/snames.ads ada/stringt.ads ada/styleg.ads ada/styleg.adb \
+   ada/stylesw.ads ada/system.ads ada/s-crc32.ads ada/s-exctab.ads \
+   ada/s-htable.ads ada/s-imgenu.ads ada/s-memory.ads ada/s-os_lib.ads \
    ada/s-parame.ads ada/s-rident.ads ada/s-secsta.ads ada/s-soflin.ads \
    ada/s-stache.ads ada/s-stalib.ads ada/s-stoele.ads ada/s-stoele.adb \
-   ada/s-traent.ads ada/s-unstyp.ads ada/s-wchcon.ads ada/table.ads \
-   ada/table.adb ada/tree_io.ads ada/types.ads ada/uintp.ads \
-   ada/unchconv.ads ada/unchdeal.ads ada/urealp.ads ada/widechar.ads
-
-ada/binde.o : ada/ada.ads ada/a-except.ads ada/ali.ads ada/alloc.ads \
-   ada/binde.ads ada/binde.adb ada/binderr.ads ada/butil.ads \
-   ada/casing.ads ada/debug.ads ada/fname.ads ada/gnat.ads \
-   ada/g-htable.ads ada/s-os_lib.ads ada/s-string.ads ada/gnatvsn.ads \
-   ada/hostparm.ads ada/interfac.ads ada/lib.ads ada/namet.ads \
-   ada/namet.adb ada/opt.ads ada/output.ads ada/rident.ads ada/system.ads \
-   ada/s-exctab.ads ada/s-htable.ads ada/s-memory.ads ada/s-parame.ads \
-   ada/s-rident.ads ada/s-secsta.ads ada/s-stalib.ads ada/s-stoele.ads \
-   ada/s-stoele.adb ada/s-traent.ads ada/s-unstyp.ads ada/s-wchcon.ads \
-   ada/table.ads ada/table.adb ada/targparm.ads ada/tree_io.ads \
-   ada/types.ads ada/unchconv.ads ada/unchdeal.ads ada/widechar.ads
+   ada/s-strops.ads ada/s-sopco3.ads ada/s-sopco4.ads ada/s-sopco5.ads \
+   ada/s-string.ads ada/s-traent.ads ada/s-unstyp.ads ada/s-utf_32.ads \
+   ada/s-wchcon.ads ada/table.ads ada/table.adb ada/tree_io.ads \
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+   ada/unchdeal.ads ada/urealp.ads 
 
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+   ada/urealp.ads 
 
-ada/tree_io.o : ada/ada.ads ada/a-except.ads ada/debug.ads ada/gnat.ads \
-   ada/s-os_lib.ads ada/s-string.ads ada/hostparm.ads ada/output.ads \
+ada/tree_io.o : ada/ada.ads ada/a-except.ads ada/a-unccon.ads \
+   ada/a-uncdea.ads ada/debug.ads ada/hostparm.ads ada/output.ads \
    ada/system.ads ada/s-exctab.ads ada/s-exctab.adb ada/s-htable.ads \
-   ada/s-parame.ads ada/s-soflin.ads ada/s-stache.ads ada/s-stalib.ads \
-   ada/s-stoele.ads ada/s-stoele.adb ada/s-traent.ads ada/s-unstyp.ads \
-   ada/tree_io.ads ada/tree_io.adb ada/types.ads ada/unchconv.ads \
-   ada/unchdeal.ads
-
-ada/treepr.o : ada/ada.ads ada/a-except.ads ada/alloc.ads ada/atree.ads \
-   ada/atree.adb ada/casing.ads ada/csets.ads ada/debug.ads ada/einfo.ads \
-   ada/einfo.adb ada/elists.ads ada/elists.adb ada/fname.ads ada/gnat.ads \
-   ada/g-hesora.ads ada/g-htable.ads ada/s-os_lib.ads ada/s-string.ads \
-   ada/hostparm.ads ada/lib.ads ada/lib.adb ada/lib-list.adb \
-   ada/lib-sort.adb ada/namet.ads ada/nlists.ads ada/nlists.adb \
-   ada/opt.ads ada/output.ads ada/output.adb ada/sem_mech.ads \
-   ada/sinfo.ads ada/sinfo.adb ada/sinput.ads ada/sinput.adb \
-   ada/snames.ads ada/stand.ads ada/stringt.ads ada/system.ads \
-   ada/s-exctab.ads ada/s-htable.ads ada/s-imgenu.ads ada/s-memory.ads \
-   ada/s-parame.ads ada/s-secsta.ads ada/s-soflin.ads ada/s-stache.ads \
-   ada/s-stalib.ads ada/s-stoele.ads ada/s-stoele.adb ada/s-traent.ads \
-   ada/s-unstyp.ads ada/s-wchcon.ads ada/table.ads ada/table.adb \
-   ada/tree_io.ads ada/treepr.ads ada/treepr.adb ada/treeprs.ads \
-   ada/types.ads ada/uintp.ads ada/uintp.adb ada/uname.ads \
-   ada/unchconv.ads ada/unchdeal.ads ada/urealp.ads ada/widechar.ads
+   ada/s-os_lib.ads ada/s-parame.ads ada/s-soflin.ads ada/s-stache.ads \
+   ada/s-stalib.ads ada/s-stoele.ads ada/s-stoele.adb ada/s-strops.ads \
+   ada/s-sopco3.ads ada/s-sopco4.ads ada/s-sopco5.ads ada/s-string.ads \
+   ada/s-traent.ads ada/s-unstyp.ads ada/tree_io.ads ada/tree_io.adb \
+   ada/types.ads ada/unchconv.ads ada/unchdeal.ads 
 
-ada/treeprs.o : ada/ada.ads ada/a-except.ads ada/alloc.ads ada/debug.ads \
-   ada/gnat.ads ada/s-os_lib.ads ada/s-string.ads ada/hostparm.ads \
-   ada/opt.ads ada/output.ads ada/sinfo.ads ada/system.ads \
-   ada/s-exctab.ads ada/s-memory.ads ada/s-parame.ads ada/s-stalib.ads \
-   ada/s-traent.ads ada/s-unstyp.ads ada/s-wchcon.ads ada/table.ads \
-   ada/table.adb ada/tree_io.ads ada/treeprs.ads ada/types.ads \
-   ada/uintp.ads ada/unchconv.ads ada/unchdeal.ads ada/urealp.ads
+ada/treepr.o : ada/ada.ads ada/a-except.ads ada/a-unccon.ads \
+   ada/a-uncdea.ads ada/alloc.ads ada/atree.ads ada/atree.adb \
+   ada/casing.ads ada/csets.ads ada/debug.ads ada/einfo.ads ada/einfo.adb \
+   ada/elists.ads ada/elists.adb ada/fname.ads ada/gnat.ads \
+   ada/g-hesora.ads ada/g-htable.ads ada/hostparm.ads ada/lib.ads \
+   ada/lib.adb ada/lib-list.adb ada/lib-sort.adb ada/namet.ads \
+   ada/nlists.ads ada/nlists.adb ada/opt.ads ada/output.ads ada/output.adb \
+   ada/sem_mech.ads ada/sinfo.ads ada/sinfo.adb ada/sinput.ads \
+   ada/sinput.adb ada/snames.ads ada/stand.ads ada/stringt.ads \
+   ada/system.ads ada/s-exctab.ads ada/s-htable.ads ada/s-imgenu.ads \
+   ada/s-memory.ads ada/s-os_lib.ads ada/s-parame.ads ada/s-secsta.ads \
+   ada/s-soflin.ads ada/s-stache.ads ada/s-stalib.ads ada/s-stoele.ads \
+   ada/s-stoele.adb ada/s-strops.ads ada/s-sopco3.ads ada/s-sopco4.ads \
+   ada/s-sopco5.ads ada/s-string.ads ada/s-traent.ads ada/s-unstyp.ads \
+   ada/s-wchcon.ads ada/table.ads ada/table.adb ada/tree_io.ads \
+   ada/treepr.ads ada/treepr.adb ada/treeprs.ads ada/types.ads \
+   ada/uintp.ads ada/uintp.adb ada/uname.ads ada/unchconv.ads \
+   ada/unchdeal.ads ada/urealp.ads ada/widechar.ads 
+
+ada/treeprs.o : ada/ada.ads ada/a-except.ads ada/a-unccon.ads \
+   ada/a-uncdea.ads ada/alloc.ads ada/debug.ads ada/hostparm.ads \
+   ada/namet.ads ada/opt.ads ada/output.ads ada/sinfo.ads ada/system.ads \
+   ada/s-exctab.ads ada/s-memory.ads ada/s-os_lib.ads ada/s-parame.ads \
+   ada/s-stalib.ads ada/s-strops.ads ada/s-sopco3.ads ada/s-sopco4.ads \
+   ada/s-sopco5.ads ada/s-string.ads ada/s-traent.ads ada/s-unstyp.ads \
+   ada/s-wchcon.ads ada/table.ads ada/table.adb ada/tree_io.ads \
+   ada/treeprs.ads ada/types.ads ada/uintp.ads ada/unchconv.ads \
+   ada/unchdeal.ads ada/urealp.ads 
 
-ada/ttypef.o : ada/system.ads ada/ttypef.ads
+ada/ttypef.o : ada/system.ads ada/ttypef.ads 
 
-ada/ttypes.o : ada/get_targ.ads ada/system.ads ada/s-exctab.ads \
-   ada/s-stalib.ads ada/s-unstyp.ads ada/ttypes.ads ada/types.ads \
-   ada/unchconv.ads ada/unchdeal.ads
+ada/ttypes.o : ada/ada.ads ada/a-unccon.ads ada/get_targ.ads \
+   ada/system.ads ada/s-exctab.ads ada/s-stalib.ads ada/s-unstyp.ads \
+   ada/ttypes.ads ada/types.ads ada/unchdeal.ads 
 
-ada/types.o : ada/ada.ads ada/a-except.ads ada/system.ads ada/s-carun8.ads \
-   ada/s-exctab.ads ada/s-exctab.adb ada/s-htable.ads ada/s-parame.ads \
-   ada/s-soflin.ads ada/s-stache.ads ada/s-stalib.ads ada/s-stoele.ads \
-   ada/s-stoele.adb ada/s-traent.ads ada/s-unstyp.ads ada/types.ads \
-   ada/types.adb ada/unchconv.ads ada/unchdeal.ads
+ada/types.o : ada/ada.ads ada/a-except.ads ada/a-unccon.ads ada/system.ads \
+   ada/s-carun8.ads ada/s-exctab.ads ada/s-exctab.adb ada/s-htable.ads \
+   ada/s-parame.ads ada/s-soflin.ads ada/s-stache.ads ada/s-stalib.ads \
+   ada/s-stoele.ads ada/s-stoele.adb ada/s-traent.ads ada/s-unstyp.ads \
+   ada/types.ads ada/types.adb ada/unchdeal.ads 
 
-ada/uintp.o : ada/ada.ads ada/a-except.ads ada/a-uncdea.ads ada/alloc.ads \
-   ada/debug.ads ada/gnat.ads ada/g-htable.ads ada/s-os_lib.ads \
-   ada/s-string.ads ada/hostparm.ads ada/opt.ads ada/output.ads \
+ada/uintp.o : ada/ada.ads ada/a-except.ads ada/a-unccon.ads \
+   ada/a-uncdea.ads ada/alloc.ads ada/debug.ads ada/gnat.ads \
+   ada/g-htable.ads ada/hostparm.ads ada/opt.ads ada/output.ads \
    ada/system.ads ada/s-exctab.ads ada/s-htable.ads ada/s-htable.adb \
-   ada/s-memory.ads ada/s-parame.ads ada/s-stalib.ads ada/s-traent.ads \
-   ada/s-unstyp.ads ada/s-wchcon.ads ada/table.ads ada/table.adb \
-   ada/tree_io.ads ada/types.ads ada/uintp.ads ada/uintp.adb \
-   ada/unchconv.ads ada/unchdeal.ads
+   ada/s-memory.ads ada/s-os_lib.ads ada/s-parame.ads ada/s-stalib.ads \
+   ada/s-strops.ads ada/s-sopco3.ads ada/s-sopco4.ads ada/s-sopco5.ads \
+   ada/s-string.ads ada/s-traent.ads ada/s-unstyp.ads ada/s-wchcon.ads \
+   ada/table.ads ada/table.adb ada/tree_io.ads ada/types.ads ada/uintp.ads \
+   ada/uintp.adb ada/unchconv.ads ada/unchdeal.ads 
 
-ada/uname.o : ada/ada.ads ada/a-except.ads ada/alloc.ads ada/atree.ads \
-   ada/atree.adb ada/casing.ads ada/debug.ads ada/einfo.ads ada/einfo.adb \
-   ada/elists.ads ada/fname.ads ada/gnat.ads ada/g-hesora.ads \
-   ada/g-htable.ads ada/s-os_lib.ads ada/s-string.ads ada/hostparm.ads \
-   ada/lib.ads ada/lib.adb ada/lib-list.adb ada/lib-sort.adb ada/namet.ads \
-   ada/nlists.ads ada/nlists.adb ada/opt.ads ada/output.ads ada/sinfo.ads \
-   ada/sinfo.adb ada/sinput.ads ada/sinput.adb ada/snames.ads \
-   ada/stand.ads ada/stringt.ads ada/system.ads ada/s-exctab.ads \
-   ada/s-htable.ads ada/s-imgenu.ads ada/s-memory.ads ada/s-parame.ads \
-   ada/s-secsta.ads ada/s-soflin.ads ada/s-stache.ads ada/s-stalib.ads \
-   ada/s-stoele.ads ada/s-stoele.adb ada/s-traent.ads ada/s-unstyp.ads \
+ada/uname.o : ada/ada.ads ada/a-except.ads ada/a-unccon.ads \
+   ada/a-uncdea.ads ada/alloc.ads ada/atree.ads ada/atree.adb \
+   ada/casing.ads ada/debug.ads ada/einfo.ads ada/einfo.adb ada/elists.ads \
+   ada/fname.ads ada/gnat.ads ada/g-hesora.ads ada/g-htable.ads \
+   ada/hostparm.ads ada/lib.ads ada/lib.adb ada/lib-list.adb \
+   ada/lib-sort.adb ada/namet.ads ada/nlists.ads ada/nlists.adb \
+   ada/opt.ads ada/output.ads ada/sinfo.ads ada/sinfo.adb ada/sinput.ads \
+   ada/sinput.adb ada/snames.ads ada/stand.ads ada/stringt.ads \
+   ada/system.ads ada/s-exctab.ads ada/s-htable.ads ada/s-imgenu.ads \
+   ada/s-memory.ads ada/s-os_lib.ads ada/s-parame.ads ada/s-secsta.ads \
+   ada/s-soflin.ads ada/s-stache.ads ada/s-stalib.ads ada/s-stoele.ads \
+   ada/s-stoele.adb ada/s-strops.ads ada/s-sopco3.ads ada/s-sopco4.ads \
+   ada/s-sopco5.ads ada/s-string.ads ada/s-traent.ads ada/s-unstyp.ads \
    ada/s-wchcon.ads ada/table.ads ada/table.adb ada/tree_io.ads \
    ada/types.ads ada/uintp.ads ada/uintp.adb ada/uname.ads ada/uname.adb \
-   ada/unchconv.ads ada/unchdeal.ads ada/urealp.ads ada/widechar.ads
-
-ada/urealp.o : ada/ada.ads ada/a-except.ads ada/alloc.ads ada/debug.ads \
-   ada/gnat.ads ada/g-htable.ads ada/s-os_lib.ads ada/s-string.ads \
-   ada/hostparm.ads ada/opt.ads ada/output.ads ada/system.ads \
-   ada/s-exctab.ads ada/s-htable.ads ada/s-memory.ads ada/s-parame.ads \
-   ada/s-stalib.ads ada/s-traent.ads ada/s-unstyp.ads ada/s-wchcon.ads \
-   ada/table.ads ada/table.adb ada/tree_io.ads ada/types.ads ada/uintp.ads \
-   ada/uintp.adb ada/unchconv.ads ada/unchdeal.ads ada/urealp.ads \
-   ada/urealp.adb
+   ada/unchconv.ads ada/unchdeal.ads ada/urealp.ads ada/widechar.ads 
+
+ada/urealp.o : ada/ada.ads ada/a-except.ads ada/a-unccon.ads \
+   ada/a-uncdea.ads ada/alloc.ads ada/debug.ads ada/gnat.ads \
+   ada/g-htable.ads ada/hostparm.ads ada/opt.ads ada/output.ads \
+   ada/system.ads ada/s-exctab.ads ada/s-htable.ads ada/s-memory.ads \
+   ada/s-os_lib.ads ada/s-parame.ads ada/s-stalib.ads ada/s-strops.ads \
+   ada/s-sopco3.ads ada/s-sopco4.ads ada/s-sopco5.ads ada/s-string.ads \
+   ada/s-traent.ads ada/s-unstyp.ads ada/s-wchcon.ads ada/table.ads \
+   ada/table.adb ada/tree_io.ads ada/types.ads ada/uintp.ads ada/uintp.adb \
+   ada/unchconv.ads ada/unchdeal.ads ada/urealp.ads ada/urealp.adb 
 
-ada/usage.o : ada/ada.ads ada/a-except.ads ada/alloc.ads ada/debug.ads \
-   ada/gnat.ads ada/s-os_lib.ads ada/s-string.ads ada/hostparm.ads \
-   ada/namet.ads ada/opt.ads ada/osint.ads ada/output.ads ada/system.ads \
-   ada/s-exctab.ads ada/s-memory.ads ada/s-parame.ads ada/s-stalib.ads \
+ada/usage.o : ada/ada.ads ada/a-except.ads ada/a-unccon.ads \
+   ada/a-uncdea.ads ada/alloc.ads ada/debug.ads ada/hostparm.ads \
+   ada/namet.ads ada/opt.ads ada/osint.ads ada/output.ads ada/rident.ads \
+   ada/system.ads ada/s-exctab.ads ada/s-memory.ads ada/s-os_lib.ads \
+   ada/s-parame.ads ada/s-rident.ads ada/s-stalib.ads ada/s-strops.ads \
+   ada/s-sopco3.ads ada/s-sopco4.ads ada/s-sopco5.ads ada/s-string.ads \
    ada/s-traent.ads ada/s-unstyp.ads ada/s-wchcon.ads ada/table.ads \
-   ada/table.adb ada/tree_io.ads ada/types.ads ada/unchconv.ads \
-   ada/unchdeal.ads ada/usage.ads ada/usage.adb
+   ada/table.adb ada/targparm.ads ada/tree_io.ads ada/types.ads \
+   ada/unchconv.ads ada/unchdeal.ads ada/usage.ads ada/usage.adb 
 
-ada/validsw.o : ada/gnat.ads ada/s-string.ads ada/hostparm.ads ada/opt.ads \
-   ada/system.ads ada/s-exctab.ads ada/s-stalib.ads ada/s-unstyp.ads \
-   ada/s-wchcon.ads ada/types.ads ada/unchconv.ads ada/unchdeal.ads \
-   ada/validsw.ads ada/validsw.adb
+ada/validsw.o : ada/ada.ads ada/a-unccon.ads ada/a-uncdea.ads \
+   ada/hostparm.ads ada/opt.ads ada/system.ads ada/s-exctab.ads \
+   ada/s-stalib.ads ada/s-strops.ads ada/s-sopco3.ads ada/s-sopco4.ads \
+   ada/s-sopco5.ads ada/s-string.ads ada/s-unstyp.ads ada/s-wchcon.ads \
+   ada/types.ads ada/unchdeal.ads ada/validsw.ads ada/validsw.adb 
 
-ada/widechar.o : ada/ada.ads ada/a-except.ads ada/gnat.ads \
-   ada/s-string.ads ada/hostparm.ads ada/interfac.ads ada/opt.ads \
+ada/widechar.o : ada/ada.ads ada/a-except.ads ada/a-unccon.ads \
+   ada/a-uncdea.ads ada/hostparm.ads ada/interfac.ads ada/opt.ads \
    ada/system.ads ada/s-exctab.ads ada/s-parame.ads ada/s-soflin.ads \
    ada/s-stache.ads ada/s-stalib.ads ada/s-stoele.ads ada/s-stoele.adb \
-   ada/s-traent.ads ada/s-unstyp.ads ada/s-wchcnv.ads ada/s-wchcnv.adb \
-   ada/s-wchcon.ads ada/s-wchjis.ads ada/types.ads ada/unchconv.ads \
-   ada/unchdeal.ads ada/widechar.ads ada/widechar.adb
+   ada/s-strops.ads ada/s-sopco3.ads ada/s-sopco4.ads ada/s-sopco5.ads \
+   ada/s-string.ads ada/s-traent.ads ada/s-unstyp.ads ada/s-wchcnv.ads \
+   ada/s-wchcnv.adb ada/s-wchcon.ads ada/s-wchjis.ads ada/types.ads \
+   ada/unchdeal.ads ada/widechar.ads ada/widechar.adb 
 
 # end of regular dependencies
diff --git a/gcc/ada/Makefile.in b/gcc/ada/Makefile.in
index aa85f9f..b228b37 100644
--- a/gcc/ada/Makefile.in
+++ b/gcc/ada/Makefile.in
@@ -411,7 +411,7 @@ ifeq ($(strip $(filter-out m68k% wrs vx%,$(targ))),)
   g-socthi.adb<g-socthi-vxworks.adb \
   g-stsifd.adb<g-stsifd-sockets.adb \
   g-sttsne.adb<g-sttsne-vxworks.adb \
-  g-sttsne.ads<g-sttsne-vxworks.ads \
+  g-sttsne.ads<g-sttsne-locking.ads \
   system.ads<system-vxworks-m68k.ads
 
   TOOLS_TARGET_PAIRS=mlib-tgt-specific.adb<mlib-tgt-vxworks.adb
@@ -448,7 +448,7 @@ ifeq ($(strip $(filter-out powerpc% wrs vxworks,$(targ))),)
   g-socthi.adb<g-socthi-vxworks.adb \
   g-stsifd.adb<g-stsifd-sockets.adb \
   g-sttsne.adb<g-sttsne-vxworks.adb \
-  g-sttsne.ads<g-sttsne-vxworks.ads
+  g-sttsne.ads<g-sttsne-locking.ads
 
   TOOLS_TARGET_PAIRS=mlib-tgt-specific.adb<mlib-tgt-vxworks.adb
 
@@ -472,16 +472,17 @@ ifeq ($(strip $(filter-out powerpc% wrs vxworks,$(targ))),)
   else
     LIBGNAT_TARGET_PAIRS += \
     s-interr.adb<s-interr-vxworks.adb \
-    s-osinte.adb<s-osinte-vxworks.adb \
     s-tpopsp.adb<s-tpopsp-vxworks.adb \
     system.ads<system-vxworks-ppc.ads
 
     ifeq ($(strip $(filter-out kernel,$(THREAD_KIND))),)
       LIBGNAT_TARGET_PAIRS += \
-      s-osinte.ads<s-osinte-vxworks6.ads
+      s-osinte.ads<s-osinte-vxworks6.ads \
+      s-osinte.adb<s-osinte-vxworks-kernel.adb
     else
       LIBGNAT_TARGET_PAIRS += \
-      s-osinte.ads<s-osinte-vxworks.ads
+      s-osinte.ads<s-osinte-vxworks.ads \
+      s-osinte.adb<s-osinte-vxworks.adb
     endif
 
     EXTRA_GNATRTL_NONTASKING_OBJS=i-vxwork.o i-vxwoio.o s-vxwexc.o
@@ -517,7 +518,7 @@ ifeq ($(strip $(filter-out powerpc% wrs vxworksae,$(targ))),)
   g-socthi.adb<g-socthi-vxworks.adb \
   g-stsifd.adb<g-stsifd-sockets.adb \
   g-sttsne.adb<g-sttsne-vxworks.adb \
-  g-sttsne.ads<g-sttsne-vxworks.ads \
+  g-sttsne.ads<g-sttsne-locking.ads \
   system.ads<system-vxworks-ppc-vthread.ads
 
   TOOLS_TARGET_PAIRS=mlib-tgt-specific.adb<mlib-tgt-vxworks.adb
@@ -565,7 +566,7 @@ ifeq ($(strip $(filter-out sparc% wrs vx%,$(targ))),)
   g-socthi.adb<g-socthi-vxworks.adb \
   g-stsifd.adb<g-stsifd-sockets.adb \
   g-sttsne.adb<g-sttsne-vxworks.adb \
-  g-sttsne.ads<g-sttsne-vxworks.ads \
+  g-sttsne.ads<g-sttsne-locking.ads \
   system.ads<system-vxworks-sparcv9.ads   \
 
   TOOLS_TARGET_PAIRS=mlib-tgt-specific.adb<mlib-tgt-vxworks.adb
@@ -596,7 +597,7 @@ ifeq ($(strip $(filter-out %86 wrs vxworks,$(targ))),)
   g-socthi.adb<g-socthi-vxworks.adb \
   g-stsifd.adb<g-stsifd-sockets.adb \
   g-sttsne.adb<g-sttsne-vxworks.adb \
-  g-sttsne.ads<g-sttsne-vxworks.ads
+  g-sttsne.ads<g-sttsne-locking.ads
 
   TOOLS_TARGET_PAIRS=mlib-tgt-specific.adb<mlib-tgt-vxworks.adb
 
@@ -620,16 +621,17 @@ ifeq ($(strip $(filter-out %86 wrs vxworks,$(targ))),)
   else
     LIBGNAT_TARGET_PAIRS += \
     s-interr.adb<s-interr-vxworks.adb \
-    s-osinte.adb<s-osinte-vxworks.adb \
     s-tpopsp.adb<s-tpopsp-vxworks.adb \
     system.ads<system-vxworks-x86.ads
 
     ifeq ($(strip $(filter-out kernel,$(THREAD_KIND))),)
       LIBGNAT_TARGET_PAIRS += \
-      s-osinte.ads<s-osinte-vxworks6.ads
+      s-osinte.ads<s-osinte-vxworks6.ads \
+      s-osinte.adb<s-osinte-vxworks-kernel.adb
     else
       LIBGNAT_TARGET_PAIRS += \
-      s-osinte.ads<s-osinte-vxworks.ads
+      s-osinte.ads<s-osinte-vxworks.ads \
+      s-osinte.adb<s-osinte-vxworks.adb
     endif
 
     EXTRA_GNATRTL_NONTASKING_OBJS=i-vxwork.o i-vxwoio.o s-vxwexc.o
@@ -661,7 +663,7 @@ ifeq ($(strip $(filter-out arm% coff wrs vx%,$(targ))),)
   g-socthi.adb<g-socthi-vxworks.adb \
   g-stsifd.adb<g-stsifd-sockets.adb \
   g-sttsne.adb<g-sttsne-vxworks.adb \
-  g-sttsne.ads<g-sttsne-vxworks.ads \
+  g-sttsne.ads<g-sttsne-locking.ads \
   system.ads<system-vxworks-arm.ads
 
   TOOLS_TARGET_PAIRS=mlib-tgt-specific.adb<mlib-tgt-vxworks.adb
@@ -693,7 +695,7 @@ ifeq ($(strip $(filter-out mips% wrs vx%,$(targ))),)
   g-socthi.adb<g-socthi-vxworks.adb \
   g-stsifd.adb<g-stsifd-sockets.adb \
   g-sttsne.adb<g-sttsne-vxworks.adb \
-  g-sttsne.ads<g-sttsne-vxworks.ads \
+  g-sttsne.ads<g-sttsne-locking.ads \
   system.ads<system-vxworks-mips.ads
 
   TOOLS_TARGET_PAIRS=mlib-tgt-specific.adb<mlib-tgt-vxworks.adb
@@ -797,6 +799,7 @@ ifeq ($(strip $(filter-out %86 solaris2%,$(arch) $(osys))),)
 
   TOOLS_TARGET_PAIRS=mlib-tgt-specific.adb<mlib-tgt-solaris.adb
 
+  EH_MECHANISM=-gcc
   THREADSLIB = -lposix4 -lthread
   MISCLIB = -lposix4 -lnsl -lsocket
   SO_OPTS = -Wl,-h,
@@ -1075,6 +1078,8 @@ ifeq ($(strip $(filter-out lynxos,$(osys))),)
     a-intnam.ads<a-intnam-lynxos.ads \
     g-bytswa.adb<g-bytswa-x86.adb \
     g-soccon.ads<g-soccon-lynxos.ads \
+    g-sttsne.adb<g-sttsne-locking.adb \
+    g-sttsne.ads<g-sttsne-locking.ads \
     s-inmaop.adb<s-inmaop-posix.adb \
     s-intman.adb<s-intman-posix.adb \
     s-osinte.adb<s-osinte-lynxos.adb \
@@ -1091,6 +1096,8 @@ ifeq ($(strip $(filter-out lynxos,$(osys))),)
     LIBGNAT_TARGET_PAIRS = \
     a-intnam.ads<a-intnam-lynxos.ads \
     g-soccon.ads<g-soccon-lynxos.ads \
+    g-sttsne.adb<g-sttsne-locking.adb \
+    g-sttsne.ads<g-sttsne-locking.ads \
     s-inmaop.adb<s-inmaop-posix.adb \
     s-intman.adb<s-intman-posix.adb \
     s-osinte.adb<s-osinte-lynxos.adb \
@@ -1465,22 +1472,38 @@ ifeq ($(strip $(filter-out %x86_64 linux%,$(arch) $(osys))),)
   LIBRARY_VERSION := $(LIB_VERSION)
 endif
 
-ifeq ($(strip $(filter-out powerpc darwin%,$(arch) $(osys))),)
-  LIBGNAT_TARGET_PAIRS = \
-  a-intnam.ads<a-intnam-darwin.ads \
-  a-numaux.ads<a-numaux-darwin.ads \
-  a-numaux.adb<a-numaux-darwin.adb \
-  g-soccon.ads<g-soccon-darwin.ads \
-  i-forbla.adb<i-forbla-darwin.adb \
-  s-inmaop.adb<s-inmaop-posix.adb \
-  s-intman.adb<s-intman-posix.adb \
-  s-osinte.adb<s-osinte-darwin.adb \
-  s-osinte.ads<s-osinte-darwin.ads \
-  s-osprim.adb<s-osprim-posix.adb \
-  s-taprop.adb<s-taprop-posix.adb \
-  s-taspri.ads<s-taspri-posix.ads \
-  s-tpopsp.adb<s-tpopsp-posix-foreign.adb \
-  system.ads<system-darwin-ppc.ads
+ifeq ($(strip $(filter-out darwin%,$(osys))),)
+  ifeq ($(strip $(filter-out %86,$(arch))),)
+    LIBGNAT_TARGET_PAIRS = \
+    a-intnam.ads<a-intnam-darwin.ads \
+    s-inmaop.adb<s-inmaop-posix.adb \
+    s-intman.adb<s-intman-posix.adb \
+    s-osinte.adb<s-osinte-darwin.adb \
+    s-osinte.ads<s-osinte-darwin.ads \
+    s-osprim.adb<s-osprim-posix.adb \
+    s-taprop.adb<s-taprop-posix.adb \
+    s-taspri.ads<s-taspri-posix.ads \
+    s-tpopsp.adb<s-tpopsp-posix-foreign.adb \
+    g-soccon.ads<g-soccon-darwin.ads \
+    a-numaux.ads<a-numaux-x86.ads \
+    a-numaux.adb<a-numaux-x86.adb \
+    system.ads<system-darwin-x86.ads
+  else
+    LIBGNAT_TARGET_PAIRS = \
+    a-intnam.ads<a-intnam-darwin.ads \
+    s-inmaop.adb<s-inmaop-posix.adb \
+    s-intman.adb<s-intman-posix.adb \
+    s-osinte.adb<s-osinte-darwin.adb \
+    s-osinte.ads<s-osinte-darwin.ads \
+    s-osprim.adb<s-osprim-posix.adb \
+    s-taprop.adb<s-taprop-posix.adb \
+    s-taspri.ads<s-taspri-posix.ads \
+    s-tpopsp.adb<s-tpopsp-posix-foreign.adb \
+    g-soccon.ads<g-soccon-darwin.ads \
+    a-numaux.ads<a-numaux-darwin.ads \
+    a-numaux.adb<a-numaux-darwin.adb \
+    system.ads<system-darwin-ppc.ads
+  endif
 
   TOOLS_TARGET_PAIRS =  \
     mlib-tgt-specific.adb<mlib-tgt-darwin.adb
@@ -1542,8 +1565,11 @@ LIBGNAT_OBJS = adaint.o argv.o cio.o cstreams.o ctrl_c.o errno.o exit.o env.o \
 
 include $(fsrcdir)/Makefile.rtl
 
+GNATRTL_LINEARALGEBRA_OBJS = a-nlcoar.o a-nllcar.o a-nllrar.o a-nlrear.o \
+  a-nucoar.o a-nurear.o i-forbla.o i-forlap.o s-gearop.o
+
 GNATRTL_OBJS = $(GNATRTL_NONTASKING_OBJS) $(GNATRTL_TASKING_OBJS) \
-  g-trasym.o memtrack.o
+  $(GNATRTL_LINEARALGEBRA_OBJS) g-trasym.o memtrack.o
 
 # Default run time files
 
@@ -1555,6 +1581,7 @@ ADA_INCLUDE_SRCS =\
  s-[a-o]*.adb s-[p-z]*.adb s-[a-o]*.ads s-[p-z]*.ads  
 
 LIBGNAT=../rts/libgnat.a 
+
 GCC_LINK=$(CC) -static-libgcc $(ADA_INCLUDES)
 
 # when compiling the tools, the runtime has to be first on the path so that
@@ -1803,6 +1830,9 @@ gnatlib: ../stamp-gnatlib1 ../stamp-gnatlib2
 	$(AR_FOR_TARGET) $(AR_FLAGS) rts/libgnarl$(arext) \
 	   $(addprefix rts/,$(GNATRTL_TASKING_OBJS))
 	$(RANLIB_FOR_TARGET) rts/libgnarl$(arext)
+	$(AR_FOR_TARGET) $(AR_FLAGS) rts/libgnala$(arext) \
+	   $(addprefix rts/,$(GNATRTL_LINEARALGEBRA_OBJS))
+	$(RANLIB_FOR_TARGET) rts/libgnala$(arext)
         ifeq ($(GMEM_LIB),gmemlib)
 		$(AR_FOR_TARGET) $(AR_FLAGS) rts/libgmem$(arext) \
 		  rts/memtrack.o
diff --git a/gcc/ada/a-calfor.adb b/gcc/ada/a-calfor.adb
index b8a8c01..d16f187 100644
--- a/gcc/ada/a-calfor.adb
+++ b/gcc/ada/a-calfor.adb
@@ -6,7 +6,7 @@
 --                                                                          --
 --                                 B o d y                                  --
 --                                                                          --
---            Copyright (C) 2006, Free Software Foundation, Inc.            --
+--          Copyright (C) 2006-2007, Free Software Foundation, Inc.         --
 --                                                                          --
 -- GNAT is free software;  you can  redistribute it  and/or modify it under --
 -- terms of the  GNU General Public License as published  by the Free Soft- --
@@ -140,14 +140,36 @@ package body Ada.Calendar.Formatting is
       Hour       : Hour_Number;
       Minute     : Minute_Number;
       Second     : Second_Number;
-      Sub_Second : Second_Duration;
+      Sub_Second : Duration;
       SS_Nat     : Natural;
 
-      Result : String := "00:00:00.00";
+      Low  : Integer;
+      High : Integer;
+
+      Result : String := "-00:00:00.00";
 
    begin
-      Split (Elapsed_Time, Hour, Minute, Second, Sub_Second);
-      SS_Nat := Natural (Sub_Second * 100.0);
+      Split (abs (Elapsed_Time), Hour, Minute, Second, Sub_Second);
+
+      --  Determine the two slice bounds for the result string depending on
+      --  whether the input is negative and whether fractions are requested.
+
+      if Elapsed_Time < 0.0 then
+         Low := 1;
+      else
+         Low := 2;
+      end if;
+
+      if Include_Time_Fraction then
+         High := 12;
+      else
+         High := 9;
+      end if;
+
+      --  Prevent rounding when converting to natural
+
+      Sub_Second := Sub_Second * 100.0 - 0.5;
+      SS_Nat := Natural (Sub_Second);
 
       declare
          Hour_Str   : constant String := Hour_Number'Image (Hour);
@@ -156,47 +178,45 @@ package body Ada.Calendar.Formatting is
          SS_Str     : constant String := Natural'Image (SS_Nat);
 
       begin
-         --  Hour processing, positions 1 and 2
+         --  Hour processing, positions 2 and 3
 
          if Hour < 10 then
-            Result (2) := Hour_Str (2);
+            Result (3) := Hour_Str (2);
          else
-            Result (1) := Hour_Str (2);
-            Result (2) := Hour_Str (3);
+            Result (2) := Hour_Str (2);
+            Result (3) := Hour_Str (3);
          end if;
 
-         --  Minute processing, positions 4 and 5
+         --  Minute processing, positions 5 and 6
 
          if Minute < 10 then
-            Result (5) := Minute_Str (2);
+            Result (6) := Minute_Str (2);
          else
-            Result (4) := Minute_Str (2);
-            Result (5) := Minute_Str (3);
+            Result (5) := Minute_Str (2);
+            Result (6) := Minute_Str (3);
          end if;
 
-         --  Second processing, positions 7 and 8
+         --  Second processing, positions 8 and 9
 
          if Second < 10 then
-            Result (8) := Second_Str (2);
+            Result (9) := Second_Str (2);
          else
-            Result (7) := Second_Str (2);
-            Result (8) := Second_Str (3);
+            Result (8) := Second_Str (2);
+            Result (9) := Second_Str (3);
          end if;
 
-         --  Optional sub second processing, positions 10 and 11
+         --  Optional sub second processing, positions 11 and 12
 
          if Include_Time_Fraction then
             if SS_Nat < 10 then
-               Result (11) := SS_Str (2);
+               Result (12) := SS_Str (2);
             else
-               Result (10) := SS_Str (2);
-               Result (11) := SS_Str (3);
+               Result (11) := SS_Str (2);
+               Result (12) := SS_Str (3);
             end if;
-
-            return Result;
-         else
-            return Result (1 .. 8);
          end if;
+
+         return Result (Low .. High);
       end;
    end Image;
 
@@ -215,7 +235,7 @@ package body Ada.Calendar.Formatting is
       Hour        : Hour_Number;
       Minute      : Minute_Number;
       Second      : Second_Number;
-      Sub_Second  : Second_Duration;
+      Sub_Second  : Duration;
       SS_Nat      : Natural;
       Leap_Second : Boolean;
 
@@ -225,7 +245,10 @@ package body Ada.Calendar.Formatting is
       Split (Date, Year, Month, Day,
              Hour, Minute, Second, Sub_Second, Leap_Second, Time_Zone);
 
-      SS_Nat := Natural (Sub_Second * 100.0);
+      --  Prevent rounding when converting to natural
+
+      Sub_Second := Sub_Second * 100.0 - 0.5;
+      SS_Nat := Natural (Sub_Second);
 
       declare
          Year_Str   : constant String := Year_Number'Image (Year);
diff --git a/gcc/ada/a-ngcoar.adb b/gcc/ada/a-ngcoar.adb
index 7d5a51e..9e0f038 100644
--- a/gcc/ada/a-ngcoar.adb
+++ b/gcc/ada/a-ngcoar.adb
@@ -65,6 +65,9 @@ package body Ada.Numerics.Generic_Complex_Arrays is
       Complex_Vector => Complex_Vector,
       Complex_Matrix => Complex_Matrix);
 
+   subtype Real is Real_Arrays.Real;
+   --  Work around visibility bug ???
+
    use BLAS, LAPACK;
 
    --  Procedure versions of functions returning unconstrained values.
@@ -1108,7 +1111,7 @@ package body Ada.Numerics.Generic_Complex_Arrays is
    -----------------
 
    procedure Eigensystem
-     (A       : in Complex_Matrix;
+     (A       : Complex_Matrix;
       Values  : out Real_Vector;
       Vectors : out Complex_Matrix)
    is
diff --git a/gcc/ada/a-ngcoar.ads b/gcc/ada/a-ngcoar.ads
index f94721c..abffbd1 100644
--- a/gcc/ada/a-ngcoar.ads
+++ b/gcc/ada/a-ngcoar.ads
@@ -35,8 +35,8 @@ package Ada.Numerics.Generic_Complex_Arrays is
    function Re (X : Complex_Vector) return Real_Vector;
    function Im (X : Complex_Vector) return Real_Vector;
 
-   procedure Set_Re (X : in out Complex_Vector; Re : in Real_Vector);
-   procedure Set_Im (X : in out Complex_Vector; Im : in Real_Vector);
+   procedure Set_Re (X : in out Complex_Vector; Re : Real_Vector);
+   procedure Set_Im (X : in out Complex_Vector; Im : Real_Vector);
 
    function Compose_From_Cartesian
      (Re : Real_Vector) return Complex_Vector;
@@ -129,8 +129,8 @@ package Ada.Numerics.Generic_Complex_Arrays is
    function Re (X : Complex_Matrix) return Real_Matrix;
    function Im (X : Complex_Matrix) return Real_Matrix;
 
-   procedure Set_Re (X : in out Complex_Matrix; Re : in Real_Matrix);
-   procedure Set_Im (X : in out Complex_Matrix; Im : in Real_Matrix);
+   procedure Set_Re (X : in out Complex_Matrix; Re : Real_Matrix);
+   procedure Set_Im (X : in out Complex_Matrix; Im : Real_Matrix);
 
    function Compose_From_Cartesian (Re : Real_Matrix) return Complex_Matrix;
 
@@ -268,7 +268,7 @@ package Ada.Numerics.Generic_Complex_Arrays is
    function Eigenvalues (A : Complex_Matrix) return Real_Vector;
 
    procedure Eigensystem
-     (A       : in Complex_Matrix;
+     (A       : Complex_Matrix;
       Values  : out Real_Vector;
       Vectors : out Complex_Matrix);
 
diff --git a/gcc/ada/exp_ch7.adb b/gcc/ada/exp_ch7.adb
index 6dcfae8..4dc1164 100644
--- a/gcc/ada/exp_ch7.adb
+++ b/gcc/ada/exp_ch7.adb
@@ -36,6 +36,7 @@ with Exp_Ch9;  use Exp_Ch9;
 with Exp_Ch11; use Exp_Ch11;
 with Exp_Dbug; use Exp_Dbug;
 with Exp_Dist; use Exp_Dist;
+with Exp_Disp; use Exp_Disp;
 with Exp_Tss;  use Exp_Tss;
 with Exp_Util; use Exp_Util;
 with Freeze;   use Freeze;
@@ -310,7 +311,7 @@ package body Exp_Ch7 is
    --  Here is a simple example of the expansion of a controlled block :
 
    --    declare
-   --       X : Controlled ;
+   --       X : Controlled;
    --       Y : Controlled := Init;
    --
    --       type R is record
@@ -369,10 +370,10 @@ package body Exp_Ch7 is
    --    end;
 
    function Global_Flist_Ref (Flist_Ref : Node_Id) return Boolean;
-   --  Return True if Flist_Ref refers to a global final list, either
-   --  the object GLobal_Final_List which is used to attach standalone
-   --  objects, or any of the list controllers associated with library
-   --  level access to controlled objects
+   --  Return True if Flist_Ref refers to a global final list, either the
+   --  object Global_Final_List which is used to attach standalone objects,
+   --  or any of the list controllers associated with library-level access
+   --  to controlled objects.
 
    procedure Clean_Simple_Protected_Objects (N : Node_Id);
    --  Protected objects without entries are not controlled types, and the
@@ -1415,12 +1416,12 @@ package body Exp_Ch7 is
    --  Start of processing for Expand_Ctrl_Function_Call
 
    begin
-      --  Optimization, if the returned value (which is on the sec-stack)
-      --  is returned again, no need to copy/readjust/finalize, we can just
-      --  pass the value thru (see Expand_N_Return_Statement), and thus no
+      --  Optimization, if the returned value (which is on the sec-stack) is
+      --  returned again, no need to copy/readjust/finalize, we can just pass
+      --  the value thru (see Expand_N_Simple_Return_Statement), and thus no
       --  attachment is needed
 
-      if Nkind (Parent (N)) = N_Return_Statement then
+      if Nkind (Parent (N)) = N_Simple_Return_Statement then
          return;
       end if;
 
@@ -1579,6 +1580,13 @@ package body Exp_Ch7 is
 
       if Ekind (Ent) = E_Package then
          Push_Scope (Corresponding_Spec (N));
+
+         --  Build dispatch tables of library level tagged types
+
+         if Is_Compilation_Unit (Ent) then
+            Build_Static_Dispatch_Tables (N);
+         end if;
+
          Build_Task_Activation_Call (N);
          Pop_Scope;
       end if;
@@ -1595,23 +1603,21 @@ package body Exp_Ch7 is
    -- Expand_N_Package_Declaration --
    ----------------------------------
 
-   --  Add call to Activate_Tasks if there are tasks declared and the
-   --  package has no body. Note that in Ada83,  this may result in
-   --  premature activation of some tasks, given that we cannot tell
-   --  whether a body will eventually appear.
+   --  Add call to Activate_Tasks if there are tasks declared and the package
+   --  has no body. Note that in Ada83, this may result in premature activation
+   --  of some tasks, given that we cannot tell whether a body will eventually
+   --  appear.
 
    procedure Expand_N_Package_Declaration (N : Node_Id) is
-      Spec    : constant Node_Id := Specification (N);
+      Spec    : constant Node_Id   := Specification (N);
+      Id      : constant Entity_Id := Defining_Entity (N);
       Decls   : List_Id;
-
-      No_Body : Boolean;
+      No_Body : Boolean := False;
       --  True in the case of a package declaration that is a compilation unit
       --  and for which no associated body will be compiled in
       --  this compilation.
-   begin
-
-      No_Body := False;
 
+   begin
       --  Case of a package declaration other than a compilation unit
 
       if Nkind (Parent (N)) /= N_Compilation_Unit then
@@ -1620,7 +1626,7 @@ package body Exp_Ch7 is
       --  Case of a compilation unit that does not require a body
 
       elsif not Body_Required (Parent (N))
-        and then not Unit_Requires_Body (Defining_Entity (N))
+        and then not Unit_Requires_Body (Id)
       then
          No_Body := True;
 
@@ -1631,7 +1637,7 @@ package body Exp_Ch7 is
       --  spec).
 
       elsif Parent (N) = Cunit (Main_Unit)
-        and then Is_Remote_Call_Interface (Defining_Entity (N))
+        and then Is_Remote_Call_Interface (Id)
         and then Distribution_Stub_Mode = Generate_Caller_Stub_Body
       then
          No_Body := True;
@@ -1642,9 +1648,9 @@ package body Exp_Ch7 is
       --  have a specific separate compilation unit for that).
 
       if No_Body then
-         Push_Scope (Defining_Entity (N));
+         Push_Scope (Id);
 
-         if Has_RACW (Defining_Entity (N)) then
+         if Has_RACW (Id) then
 
             --  Generate RACW subprogram bodies
 
@@ -1659,7 +1665,7 @@ package body Exp_Ch7 is
                Set_Visible_Declarations (Spec, Decls);
             end if;
 
-            Append_RACW_Bodies (Decls, Defining_Entity (N));
+            Append_RACW_Bodies (Decls, Id);
             Analyze_List (Decls);
          end if;
 
@@ -1673,6 +1679,15 @@ package body Exp_Ch7 is
          Pop_Scope;
       end if;
 
+      --  Build dispatch tables of library level tagged types
+
+      if Is_Compilation_Unit (Id)
+        or else (Is_Generic_Instance (Id)
+                   and then Is_Library_Level_Entity (Id))
+      then
+         Build_Static_Dispatch_Tables (N);
+      end if;
+
       --  Note: it is not necessary to worry about generating a subprogram
       --  descriptor, since the only way to get exception handlers into a
       --  package spec is to include instantiations, and that would cause
@@ -1698,7 +1713,7 @@ package body Exp_Ch7 is
 
    begin
       --  Case of an internal component. The Final list is the record
-      --  controller of the enclosing record
+      --  controller of the enclosing record.
 
       if Present (Ref) then
          R := Ref;
@@ -1741,7 +1756,9 @@ package body Exp_Ch7 is
       --  context is a declaration or an assignment.
 
       elsif Is_Access_Type (E)
-        and then Ekind (E) /= E_Anonymous_Access_Type
+        and then (Ekind (E) /= E_Anonymous_Access_Type
+                    or else
+                  Present (Associated_Final_Chain (E)))
       then
          if not From_With_Type (E) then
             return
@@ -1775,15 +1792,15 @@ package body Exp_Ch7 is
             return New_Reference_To (RTE (RE_Global_Final_List), Sloc (E));
          else
             if No (Finalization_Chain_Entity (S)) then
-
-               Id := Make_Defining_Identifier (Sloc (S),
-                 New_Internal_Name ('F'));
+               Id :=
+                 Make_Defining_Identifier (Sloc (S),
+                   Chars => New_Internal_Name ('F'));
                Set_Finalization_Chain_Entity (S, Id);
 
                --  Set momentarily some semantics attributes to allow normal
                --  analysis of expansions containing references to this chain.
                --  Will be fully decorated during the expansion of the scope
-               --  itself
+               --  itself.
 
                Set_Ekind (Id, E_Variable);
                Set_Etype (Id, RTE (RE_Finalizable_Ptr));
@@ -1813,7 +1830,7 @@ package body Exp_Ch7 is
 
             --  Simple statement can be wrapped
 
-            when N_Pragma               =>
+            when N_Pragma =>
                return The_Parent;
 
             --  Usually assignments are good candidate for wrapping
@@ -1876,7 +1893,7 @@ package body Exp_Ch7 is
                  N_Terminate_Alternative            =>
                return P;
 
-            when N_Attribute_Reference              =>
+            when N_Attribute_Reference =>
 
                if Is_Procedure_Attribute_Name
                     (Attribute_Name (The_Parent))
@@ -1888,7 +1905,7 @@ package body Exp_Ch7 is
             --  expression in a raise_with_expression uses the secondary
             --  stack, for example.
 
-            when N_Raise_Statement  =>
+            when N_Raise_Statement =>
                return The_Parent;
 
             --  If the expression is within the iteration scheme of a loop,
@@ -1909,7 +1926,7 @@ package body Exp_Ch7 is
             --  The return statement is not to be wrapped when the function
             --  itself needs wrapping at the outer-level
 
-            when N_Return_Statement            =>
+            when N_Simple_Return_Statement =>
                declare
                   Applies_To : constant Entity_Id :=
                                  Return_Applies_To
@@ -3139,7 +3156,7 @@ package body Exp_Ch7 is
       if VM_Target = No_VM
         and then Uses_Sec_Stack (Current_Scope)
         and then No (Flist)
-        and then Nkind (Action) /= N_Return_Statement
+        and then Nkind (Action) /= N_Simple_Return_Statement
         and then Nkind (Par) /= N_Exception_Handler
       then
 
diff --git a/gcc/ada/g-socket.ads b/gcc/ada/g-socket.ads
index 3f37bb5..cbbb133 100644
--- a/gcc/ada/g-socket.ads
+++ b/gcc/ada/g-socket.ads
@@ -180,13 +180,6 @@ package GNAT.Sockets is
    --           Socket_Level,
    --           (Reuse_Address, True));
 
-   --        --  Join a multicast group
-
-   --        Set_Socket_Option
-   --          (Socket,
-   --           IP_Protocol_For_IP_Level,
-   --           (Add_Membership, Inet_Addr (Group), Any_Inet_Addr));
-
    --        --  Controls the live time of the datagram to avoid it being
    --        --  looped forever due to routing errors. Routers decrement
    --        --  the TTL of every datagram as it traverses from one network
@@ -213,6 +206,16 @@ package GNAT.Sockets is
 
    --        Bind_Socket (Socket, Address);
 
+   --        --  Join a multicast group
+
+   --        --  Portability note: On Windows, this option may be set only
+   --        --  on a bound socket.
+
+   --        Set_Socket_Option
+   --          (Socket,
+   --           IP_Protocol_For_IP_Level,
+   --           (Add_Membership, Inet_Addr (Group), Any_Inet_Addr));
+
    --        --  If this socket is intended to send messages, provide the
    --        --  receiver socket address.
 
@@ -308,11 +311,6 @@ package GNAT.Sockets is
    --        Set_Socket_Option
    --          (Socket,
    --           IP_Protocol_For_IP_Level,
-   --           (Add_Membership, Inet_Addr (Group), Any_Inet_Addr));
-
-   --        Set_Socket_Option
-   --          (Socket,
-   --           IP_Protocol_For_IP_Level,
    --           (Multicast_TTL, 1));
 
    --        Set_Socket_Option
@@ -325,6 +323,11 @@ package GNAT.Sockets is
 
    --        Bind_Socket (Socket, Address);
 
+   --        Set_Socket_Option
+   --          (Socket,
+   --           IP_Protocol_For_IP_Level,
+   --           (Add_Membership, Inet_Addr (Group), Any_Inet_Addr));
+
    --        Address.Addr := Inet_Addr (Group);
    --        Address.Port := 55505;
 
diff --git a/gcc/ada/g-sttsne-locking.adb b/gcc/ada/g-sttsne-locking.adb
index 5153fb7..6225871 100644
--- a/gcc/ada/g-sttsne-locking.adb
+++ b/gcc/ada/g-sttsne-locking.adb
@@ -31,12 +31,20 @@
 --                                                                          --
 ------------------------------------------------------------------------------
 
+--  This version is used on VMS and LynxOS
+
 with GNAT.Task_Lock;
 
 with Interfaces.C; use Interfaces.C;
 
 package body GNAT.Sockets.Thin.Task_Safe_NetDB is
 
+   --  The Safe_GetXXXbyYYY routines wrap the Nonreentrant_ versions using the
+   --  task lock, and copy the relevant data structures (under the lock) into
+   --  the result. The Nonreentrant_ versions are expected to be in the parent
+   --  package GNAT.Sockets.Thin (on platforms that use this version of
+   --  Task_Safe_NetDB).
+
    procedure Copy_Host_Entry
      (Source_Hostent       : Hostent;
       Target_Hostent       : out Hostent;
diff --git a/gcc/ada/g-sttsne-locking.ads b/gcc/ada/g-sttsne-locking.ads
index 5b96cd3..3f2fb43 100644
--- a/gcc/ada/g-sttsne-locking.ads
+++ b/gcc/ada/g-sttsne-locking.ads
@@ -31,7 +31,8 @@
 --                                                                          --
 ------------------------------------------------------------------------------
 
---  This version is used on VMS and LynxOS
+--  This version is used on VMS, LynxOS, and VxWorks. There are two versions of
+--  the body: one for VMS and LynxOS, the other for VxWorks.
 
 package GNAT.Sockets.Thin.Task_Safe_NetDB is
 
@@ -39,12 +40,6 @@ package GNAT.Sockets.Thin.Task_Safe_NetDB is
    -- Reentrant network databases access --
    ----------------------------------------
 
-   --  The following routines wrap the Nonreentrant_ versions using the task
-   --  lock, and copy the relevant data structures (under the lock) into the
-   --  result. The Nonreentrant_ versions are expected to be in the parent
-   --  package GNAT.Sockets.Thin (on platforms that use this version of
-   --  Task_Safe_NetDB).
-
    function Safe_Gethostbyname
      (Name     : C.char_array;
       Ret      : not null access Hostent;
diff --git a/gcc/ada/g-sttsne-vxworks.adb b/gcc/ada/g-sttsne-vxworks.adb
index eaec069..9dbe0ea 100644
--- a/gcc/ada/g-sttsne-vxworks.adb
+++ b/gcc/ada/g-sttsne-vxworks.adb
@@ -31,6 +31,9 @@
 --                                                                          --
 ------------------------------------------------------------------------------
 
+--  This version is used on VxWorks. Note that the corresponding spec is in
+--  g-sttsne-locking.ads.
+
 with Interfaces.C; use Interfaces.C;
 
 package body GNAT.Sockets.Thin.Task_Safe_NetDB is
diff --git a/gcc/ada/g-sttsne-vxworks.ads b/gcc/ada/g-sttsne-vxworks.ads
deleted file mode 100644
index 063ba12..0000000
--- a/gcc/ada/g-sttsne-vxworks.ads
+++ /dev/null
@@ -1,72 +0,0 @@
-------------------------------------------------------------------------------
---                                                                          --
---                         GNAT COMPILER COMPONENTS                         --
---                                                                          --
---    G N A T . S O C K E T S . T H I N . T A S K _ S A F E _ N E T D B     --
---                                                                          --
---                                 S p e c                                  --
---                                                                          --
---                     Copyright (C) 2007, AdaCore                          --
---                                                                          --
--- GNAT is free software;  you can  redistribute it  and/or modify it under --
--- terms of the  GNU General Public License as published  by the Free Soft- --
--- ware  Foundation;  either version 2,  or (at your option) any later ver- --
--- sion.  GNAT is distributed in the hope that it will be useful, but WITH- --
--- OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY --
--- or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License --
--- for  more details.  You should have  received  a copy of the GNU General --
--- Public License  distributed with GNAT;  see file COPYING.  If not, write --
--- to  the  Free Software Foundation,  51  Franklin  Street,  Fifth  Floor, --
--- Boston, MA 02110-1301, USA.                                              --
---                                                                          --
--- As a special exception,  if other files  instantiate  generics from this --
--- unit, or you link  this unit with other files  to produce an executable, --
--- this  unit  does not  by itself cause  the resulting  executable  to  be --
--- covered  by the  GNU  General  Public  License.  This exception does not --
--- however invalidate  any other reasons why  the executable file  might be --
--- covered by the  GNU Public License.                                      --
---                                                                          --
--- GNAT was originally developed  by the GNAT team at  New York University. --
--- Extensive contributions were provided by Ada Core Technologies Inc.      --
---                                                                          --
-------------------------------------------------------------------------------
-
---  This version is used on VxWorks
-
-package GNAT.Sockets.Thin.Task_Safe_NetDB is
-
-   ----------------------------------------
-   -- Reentrant network databases access --
-   ----------------------------------------
-
-   function Safe_Gethostbyname
-     (Name     : C.char_array;
-      Ret      : not null access Hostent;
-      Buf      : System.Address;
-      Buflen   : C.int;
-      H_Errnop : not null access C.int) return C.int;
-
-   function Safe_Gethostbyaddr
-     (Addr      : System.Address;
-      Addr_Len  : C.int;
-      Addr_Type : C.int;
-      Ret       : not null access Hostent;
-      Buf       : System.Address;
-      Buflen    : C.int;
-      H_Errnop  : not null access C.int) return C.int;
-
-   function Safe_Getservbyname
-     (Name     : C.char_array;
-      Proto    : C.char_array;
-      Ret      : not null access Servent;
-      Buf      : System.Address;
-      Buflen   : C.int) return C.int;
-
-   function Safe_Getservbyport
-     (Port     : C.int;
-      Proto    : C.char_array;
-      Ret      : not null access Servent;
-      Buf      : System.Address;
-      Buflen   : C.int) return C.int;
-
-end GNAT.Sockets.Thin.Task_Safe_NetDB;
diff --git a/gcc/ada/g-trasym.ads b/gcc/ada/g-trasym.ads
index 60681d3..346f73b 100644
--- a/gcc/ada/g-trasym.ads
+++ b/gcc/ada/g-trasym.ads
@@ -36,12 +36,13 @@
 --  This capability is currently supported on the following targets:
 
 --     HP-UX
---     Irix MIPS
+--     IRIX
 --     GNU/Linux x86
+--     AIX
 --     Solaris sparc
---     Tru64 alpha
+--     Tru64
 --     OpenVMS/Alpha
---     Windows NT/XP
+--     Windows NT/XP/Vista
 
 --  The routines provided in this package assume that your application has
 --  been compiled with debugging information turned on, since this information
@@ -59,16 +60,15 @@
 --  - archive this executable
 --  - strip a copy of the executable and distribute/deploy this version
 --  - at run time, compute absolute traceback (-bargs -E) from your
---    executable and log it using Ada.Exceptions.Exception_Occurrence
+--    executable and log it using Ada.Exceptions.Exception_Information
 --  - off line, compute the symbolic traceback using the executable archived
 --    with debug info and addr2line or gdb (using info line *<addr>) on the
 --    absolute addresses logged by your application.
 
 --  In order to retrieve symbolic information, functions in this package will
 --  read on disk all the debug information of the executable file (found via
---  Argument (0), so any path information needed to read the executable file
---  need to be provided when launching the executable), and load then in
---  memory, causing a significant cpu and memory overhead.
+--  Argument (0), and looked in the PATH if needed), and load them in memory,
+--  causing a significant cpu and memory overhead.
 
 --  On all platforms except VMS, this package is not intended to be used
 --  within a shared library, symbolic tracebacks are only supported for the
diff --git a/gcc/ada/gen-soccon.c b/gcc/ada/gen-soccon.c
index d52ba5f..26be937 100644
--- a/gcc/ada/gen-soccon.c
+++ b/gcc/ada/gen-soccon.c
@@ -497,6 +497,11 @@ CND(TCP_NODELAY, "Do not coalesce packets")
 #endif
 CND(SO_REUSEADDR, "Bind reuse local address")
 
+#ifndef SO_REUSEPORT
+#define SO_REUSEPORT -1
+#endif
+CND(SO_REUSEPORT, "Bind reuse port number")
+
 #ifndef SO_KEEPALIVE
 #define SO_KEEPALIVE -1
 #endif
diff --git a/gcc/ada/gnatchop.adb b/gcc/ada/gnatchop.adb
index 713e830..8db06e2 100644
--- a/gcc/ada/gnatchop.adb
+++ b/gcc/ada/gnatchop.adb
@@ -38,12 +38,10 @@ with GNAT.Table;
 
 with Gnatvsn;
 with Hostparm;
+with Types;
 
 procedure Gnatchop is
 
-   Terminate_Program : exception;
-   --  Used to terminate execution immediately
-
    Config_File_Name : constant String_Access := new String'("gnat.adc");
    --  The name of the file holding the GNAT configuration pragmas
 
@@ -362,7 +360,7 @@ procedure Gnatchop is
          Set_Exit_Status (Failure);
 
          if Exit_On_Error then
-            raise Terminate_Program;
+            raise Types.Terminate_Program;
          end if;
       end if;
    end Error_Msg;
@@ -696,7 +694,7 @@ procedure Gnatchop is
       return Success;
 
    exception
-      when Failure | Terminate_Program =>
+      when Failure | Types.Terminate_Program =>
          Close (Offset_FD);
          Delete_File (Offset_Name'Address, Success);
          return False;
@@ -1114,7 +1112,7 @@ procedure Gnatchop is
 
             when 'h' =>
                Usage;
-               raise Terminate_Program;
+               raise Types.Terminate_Program;
 
             when 'k' =>
                declare
@@ -1852,7 +1850,7 @@ begin
    return;
 
 exception
-   when Terminate_Program =>
+   when Types.Terminate_Program =>
       null;
 
 end Gnatchop;
diff --git a/gcc/ada/gnatvsn.adb b/gcc/ada/gnatvsn.adb
index 7743975..3b9fb07 100644
--- a/gcc/ada/gnatvsn.adb
+++ b/gcc/ada/gnatvsn.adb
@@ -6,7 +6,7 @@
 --                                                                          --
 --                                 B o d y                                  --
 --                                                                          --
---       Copyright (C) 2002-2006 Free Software Foundation, Inc.             --
+--       Copyright (C) 2002-2007 Free Software Foundation, Inc.             --
 --                                                                          --
 -- GNAT is free software;  you can  redistribute it  and/or modify it under --
 -- terms of the  GNU General Public License as published  by the Free Soft- --
@@ -33,6 +33,19 @@
 
 package body Gnatvsn is
 
+   ------------------------
+   -- Gnat_Free_Software --
+   ------------------------
+
+   function Gnat_Free_Software return String is
+   begin
+      return
+        "This is free software; see the source for copying conditions." &
+        ASCII.LF &
+        "There is NO warranty; not even for MERCHANTABILITY or FITNESS" &
+        " FOR A PARTICULAR PURPOSE.";
+   end Gnat_Free_Software;
+
    Version_String : String (1 .. Ver_Len_Max);
    --  Import the C string defined in the (language-independent) source file
    --  version.c.
diff --git a/gcc/ada/gnatvsn.ads b/gcc/ada/gnatvsn.ads
index 2cfa3b0..c3c17a3 100644
--- a/gcc/ada/gnatvsn.ads
+++ b/gcc/ada/gnatvsn.ads
@@ -6,7 +6,7 @@
 --                                                                          --
 --                                 S p e c                                  --
 --                                                                          --
---          Copyright (C) 1992-2006 Free Software Foundation, Inc.          --
+--          Copyright (C) 1992-2007 Free Software Foundation, Inc.          --
 --                                                                          --
 -- GNAT is free software;  you can  redistribute it  and/or modify it under --
 -- terms of the  GNU General Public License as published  by the Free Soft- --
@@ -64,6 +64,10 @@ package Gnatvsn is
    --       gives appropriate bug submission instructions that do not reference
    --       customer number etc.
 
+   function Gnat_Free_Software return String;
+   --  Text to be displayed by the different GNAT tools when switch --version
+   --  is used. This text depends on the GNAT build type.
+
    Ver_Len_Max : constant := 64;
    --  Longest possible length for Gnat_Version_String in this or any
    --  other version of GNAT. This is used by the binder to establish
@@ -89,7 +93,14 @@ package Gnatvsn is
    --  the tree format that would result in a compiler being incompatible with
    --  an older version of ASIS, or vice versa.
 
-   Current_Year : constant String := "2006";
+   PCS_Version_Number : constant := 1;
+   --  PCS interface version. This is used to check for consistency between the
+   --  compiler used to generate distribution stubs and the PCS implementation.
+   --  It must be incremented whenever a change is made to the generated code
+   --  for distribution stubs that would result in the compiler being
+   --  incompatible with an older version of the PCS, or vice versa.
+
+   Current_Year : constant String := "2007";
    --  Used in printing copyright messages
 
 end Gnatvsn;
diff --git a/gcc/ada/i-forbla.adb b/gcc/ada/i-forbla.adb
index 2f7198c..f54497d 100644
--- a/gcc/ada/i-forbla.adb
+++ b/gcc/ada/i-forbla.adb
@@ -6,7 +6,7 @@
 --                                                                          --
 --                                 B o d y                                  --
 --                                                                          --
---            Copyright (C) 2006, Free Software Foundation, Inc.            --
+--         Copyright (C) 2006-2007, Free Software Foundation, Inc.          --
 --                                                                          --
 -- GNAT is free software;  you can  redistribute it  and/or modify it under --
 -- terms of the  GNU General Public License as published  by the Free Soft- --
@@ -31,9 +31,13 @@
 --                                                                          --
 ------------------------------------------------------------------------------
 
---  For platforms without, or with unknown libraries, no libraries are linked
---  by default. The user has to specify the required BLAS and LAPACK libraries
---  explicitly on the command line.
+--  This Interfaces.Fortran.Blas package body contains the required linker
+--  pragmas for automatically linking with the gnalasup linear algebra support
+--  library, and the systems math library. Alternative bodies can be supplied
+--  if different sets of libraries are needed.
 
 package body Interfaces.Fortran.BLAS is
+   pragma Linker_Options ("-lgnala");
+   pragma Linker_Options ("-lgnalasup");
+   pragma Linker_Options ("-lm");
 end Interfaces.Fortran.BLAS;
diff --git a/gcc/ada/i-forbla.ads b/gcc/ada/i-forbla.ads
index db093dd..c405478 100644
--- a/gcc/ada/i-forbla.ads
+++ b/gcc/ada/i-forbla.ads
@@ -6,7 +6,7 @@
 --                                                                          --
 --                                 S p e c                                  --
 --                                                                          --
---            Copyright (C) 2006, Free Software Foundation, Inc.            --
+--         Copyright (C) 2006-2007, Free Software Foundation, Inc.          --
 --                                                                          --
 -- GNAT is free software;  you can  redistribute it  and/or modify it under --
 -- terms of the  GNU General Public License as published  by the Free Soft- --
@@ -31,10 +31,22 @@
 --                                                                          --
 ------------------------------------------------------------------------------
 
---  Comment required if non-RM package ???
+--  This package provides a thin binding to the standard Fortran BLAS library.
+--  Documentation and a reference BLAS implementation is available from
+--  ftp://ftp.netlib.org. The main purpose of this package is to facilitate
+--  implementation of the Ada 2005 Ada.Numerics.Generic_Real_Arrays and
+--  Ada.Numerics.Generic_Complex_Arrays packages. Bindings to other BLAS
+--  routines may be added over time.
+
+--  As actual linker arguments to link with the BLAS implementation differs
+--  according to platform and chosen BLAS implementation, the linker arguments
+--  are given in the body of this package. The body may need to be modified in
+--  order to link with different BLAS implementations tuned to the specific
+--  target.
 
 package Interfaces.Fortran.BLAS is
    pragma Pure;
+   pragma Elaborate_Body;
 
    No_Trans   : aliased constant Character := 'N';
    Trans      : aliased constant Character := 'T';
@@ -81,14 +93,14 @@ package Interfaces.Fortran.BLAS is
       Y     : Double_Precision_Vector;
       Inc_Y : Integer := 1) return Double_Precision;
 
-   function cdot
+   function cdotu
      (N     : Positive;
       X     : Complex_Vector;
       Inc_X : Integer := 1;
       Y     : Complex_Vector;
       Inc_Y : Integer := 1) return Complex;
 
-   function zdot
+   function zdotu
      (N     : Positive;
       X     : Double_Complex_Vector;
       Inc_X : Integer := 1;
@@ -232,7 +244,7 @@ package Interfaces.Fortran.BLAS is
       Ld_C    : Integer);
 
 private
-   pragma Import (Fortran, cdot,   "cdot_");
+   pragma Import (Fortran, cdotu,  "cdotu_");
    pragma Import (Fortran, cgemm,  "cgemm_");
    pragma Import (Fortran, cgemv,  "cgemv_");
    pragma Import (Fortran, ddot,   "ddot_");
@@ -245,7 +257,7 @@ private
    pragma Import (Fortran, sgemm,  "sgemm_");
    pragma Import (Fortran, sgemv,  "sgemv_");
    pragma Import (Fortran, snrm2,  "snrm2_");
-   pragma Import (Fortran, zdot,   "zdot_");
+   pragma Import (Fortran, zdotu,  "zdotu_");
    pragma Import (Fortran, zgemm,  "zgemm_");
    pragma Import (Fortran, zgemv,  "zgemv_");
 end Interfaces.Fortran.BLAS;
diff --git a/gcc/ada/i-forlap.ads b/gcc/ada/i-forlap.ads
index 9faacce..3e8f2be 100644
--- a/gcc/ada/i-forlap.ads
+++ b/gcc/ada/i-forlap.ads
@@ -293,7 +293,7 @@ package Interfaces.Fortran.LAPACK is
       N      : Natural;
       A      : in out Real_Matrix;
       Ld_A   : Positive;
-      Tau    : in Real_Vector;
+      Tau    : Real_Vector;
       Work   : out Real_Vector;
       L_Work : Integer;
       Info   : access Integer);
@@ -303,7 +303,7 @@ package Interfaces.Fortran.LAPACK is
       N      : Natural;
       A      : in out Double_Precision_Matrix;
       Ld_A   : Positive;
-      Tau    : in Double_Precision_Vector;
+      Tau    : Double_Precision_Vector;
       Work   : out Double_Precision_Vector;
       L_Work : Integer;
       Info   : access Integer);
@@ -311,12 +311,12 @@ package Interfaces.Fortran.LAPACK is
    procedure sstebz
      (Rng      : access constant Character;
       Order    : access constant Character;
-      N        : in Natural;
-      Vl, Vu   : in Real := 0.0;
-      Il, Iu   : in Integer := 1;
-      Abs_Tol  : in Real := 0.0;
-      D        : in Real_Vector;
-      E        : in Real_Vector;
+      N        : Natural;
+      Vl, Vu   : Real := 0.0;
+      Il, Iu   : Integer := 1;
+      Abs_Tol  : Real := 0.0;
+      D        : Real_Vector;
+      E        : Real_Vector;
       M        : out Natural;
       N_Split  : out Natural;
       W        : out Real_Vector;
@@ -329,12 +329,12 @@ package Interfaces.Fortran.LAPACK is
    procedure dstebz
      (Rng      : access constant Character;
       Order    : access constant Character;
-      N        : in Natural;
-      Vl, Vu   : in Double_Precision := 0.0;
-      Il, Iu   : in Integer := 1;
-      Abs_Tol  : in Double_Precision := 0.0;
-      D        : in Double_Precision_Vector;
-      E        : in Double_Precision_Vector;
+      N        : Natural;
+      Vl, Vu   : Double_Precision := 0.0;
+      Il, Iu   : Integer := 1;
+      Abs_Tol  : Double_Precision := 0.0;
+      D        : Double_Precision_Vector;
+      E        : Double_Precision_Vector;
       M        : out Natural;
       N_Split  : out Natural;
       W        : out Double_Precision_Vector;
diff --git a/gcc/ada/lib-load.adb b/gcc/ada/lib-load.adb
index a4fb208..98f9a52 100644
--- a/gcc/ada/lib-load.adb
+++ b/gcc/ada/lib-load.adb
@@ -52,7 +52,7 @@ package body Lib.Load is
    -- Local Subprograms --
    -----------------------
 
-   function From_Limited_With_Chain (Lim : Boolean) return Boolean;
+   function From_Limited_With_Chain return Boolean;
    --  Check whether a possible circular dependence includes units that
    --  have been loaded through limited_with clauses, in which case there
    --  is no real circularity.
@@ -236,22 +236,24 @@ package body Lib.Load is
    -- From_Limited_With_Chain --
    -----------------------------
 
-   function From_Limited_With_Chain (Lim : Boolean) return Boolean is
+   function From_Limited_With_Chain return Boolean is
+      Curr_Num : constant Unit_Number_Type :=
+                   Load_Stack.Table (Load_Stack.Last).Unit_Number;
+
    begin
       --  True if the current load operation is through a limited_with clause
+      --  and we are not within a loop of regular with_clauses.
 
-      if Lim then
-         return True;
-
-      --  Examine the Load_Stack to locate any previous Limited_with clause
+      for U in reverse Load_Stack.First .. Load_Stack.Last - 1 loop
+         if Load_Stack.Table (U).Unit_Number = Curr_Num then
+            return False;
 
-      elsif Load_Stack.Last - 1 > Load_Stack.First then
-         for U in Load_Stack.First .. Load_Stack.Last - 1 loop
-            if Load_Stack.Table (U).From_Limited_With then
-               return True;
-            end if;
-         end loop;
-      end if;
+         elsif Present (Load_Stack.Table (U).With_Node)
+           and then Limited_Present (Load_Stack.Table (U).With_Node)
+         then
+            return True;
+         end if;
+      end loop;
 
       return False;
    end From_Limited_With_Chain;
@@ -285,7 +287,7 @@ package body Lib.Load is
 
    begin
       Load_Stack.Increment_Last;
-      Load_Stack.Table (Load_Stack.Last) := (Main_Unit, False);
+      Load_Stack.Table (Load_Stack.Last) := (Main_Unit, Empty);
 
       --  Initialize unit table entry for Main_Unit. Note that we don't know
       --  the unit name yet, that gets filled in when the parser parses the
@@ -339,7 +341,7 @@ package body Lib.Load is
       Subunit           : Boolean;
       Corr_Body         : Unit_Number_Type := No_Unit;
       Renamings         : Boolean          := False;
-      From_Limited_With : Boolean          := False) return Unit_Number_Type
+      With_Node         : Node_Id          := Empty) return Unit_Number_Type
    is
       Calling_Unit : Unit_Number_Type;
       Uname_Actual : Unit_Name_Type;
@@ -558,7 +560,7 @@ package body Lib.Load is
       --  and indicate the kind of with_clause responsible for the load.
 
       Load_Stack.Increment_Last;
-      Load_Stack.Table (Load_Stack.Last) := (Unum, From_Limited_With);
+      Load_Stack.Table (Load_Stack.Last) := (Unum, With_Node);
 
       --  Case of entry already in table
 
@@ -579,7 +581,7 @@ package body Lib.Load is
                        or else Acts_As_Spec (Units.Table (Unum).Cunit))
            and then (Nkind (Error_Node) /= N_With_Clause
                        or else not Limited_Present (Error_Node))
-           and then not From_Limited_With_Chain (From_Limited_With)
+           and then not From_Limited_With_Chain
          then
             if Debug_Flag_L then
                Write_Str ("  circular dependency encountered");
@@ -653,8 +655,7 @@ package body Lib.Load is
                Multiple_Unit_Index := Get_Unit_Index (Uname_Actual);
                Units.Table (Unum).Munit_Index := Multiple_Unit_Index;
                Initialize_Scanner (Unum, Source_Index (Unum));
-               Discard_List (Par (Configuration_Pragmas => False,
-                                  From_Limited_With     => From_Limited_With));
+               Discard_List (Par (Configuration_Pragmas => False));
                Multiple_Unit_Index := Save_Index;
                Set_Loading (Unum, False);
             end;
diff --git a/gcc/ada/lib-load.ads b/gcc/ada/lib-load.ads
index 6ea1e81..af5f92b 100644
--- a/gcc/ada/lib-load.ads
+++ b/gcc/ada/lib-load.ads
@@ -110,7 +110,7 @@ package Lib.Load is
       Subunit           : Boolean;
       Corr_Body         : Unit_Number_Type := No_Unit;
       Renamings         : Boolean          := False;
-      From_Limited_With : Boolean          := False) return Unit_Number_Type;
+      With_Node         : Node_Id          := Empty) return Unit_Number_Type;
    --  This function loads and parses the unit specified by Load_Name (or
    --  returns the unit number for the previously constructed units table
    --  entry if this is not the first call for this unit). Required indicates
diff --git a/gcc/ada/link.c b/gcc/ada/link.c
index 339762b..6559287 100644
--- a/gcc/ada/link.c
+++ b/gcc/ada/link.c
@@ -6,7 +6,7 @@
  *                                                                          *
  *                          C Implementation File                           *
  *                                                                          *
- *          Copyright (C) 1992-2004, Free Software Foundation, Inc.         *
+ *          Copyright (C) 1992-2007, Free Software Foundation, Inc.         *
  *                                                                          *
  * GNAT is free software;  you can  redistribute it  and/or modify it under *
  * terms of the  GNU General Public License as published  by the Free Soft- *
@@ -154,13 +154,13 @@ unsigned char __gnat_using_gnu_linker = 0;
 const char *__gnat_object_library_extension = ".a";
 
 #elif defined (__FreeBSD__)
-char *__gnat_object_file_option = "";
-char *__gnat_run_path_option = "-Wl,-rpath,";
+const char *__gnat_object_file_option = "";
+const char *__gnat_run_path_option = "-Wl,-rpath,";
 char __gnat_shared_libgnat_default = STATIC;
 int __gnat_link_max = 8192;
 unsigned char __gnat_objlist_file_supported = 1;
 unsigned char __gnat_using_gnu_linker = 1;
-char *__gnat_object_library_extension = ".a";
+const char *__gnat_object_library_extension = ".a";
 
 #elif defined (linux)
 const char *__gnat_object_file_option = "";
diff --git a/gcc/ada/mdll-fil.adb b/gcc/ada/mdll-fil.adb
index 11f56f3..be6aeec 100644
--- a/gcc/ada/mdll-fil.adb
+++ b/gcc/ada/mdll-fil.adb
@@ -6,7 +6,7 @@
 --                                                                          --
 --                                 B o d y                                  --
 --                                                                          --
---          Copyright (C) 1992-2005 Free Software Foundation, Inc.          --
+--          Copyright (C) 1992-2007, Free Software Foundation, Inc.         --
 --                                                                          --
 -- GNAT is free software;  you can  redistribute it  and/or modify it under --
 -- terms of the  GNU General Public License as published  by the Free Soft- --
@@ -80,11 +80,12 @@ package body MDLL.Fil is
    begin
       if I = 0 then
          return Filename;
+
       else
          if New_Ext = "" then
-            return Head (Filename, I - 1);
+            return Filename (Filename'First .. I - 1);
          else
-            return Head (Filename, I - 1) & '.' & New_Ext;
+            return Filename (Filename'First .. I - 1) & '.' & New_Ext;
          end if;
       end if;
    end Ext_To;
diff --git a/gcc/ada/mdll.adb b/gcc/ada/mdll.adb
index a3188b3..71d27e0 100644
--- a/gcc/ada/mdll.adb
+++ b/gcc/ada/mdll.adb
@@ -6,7 +6,7 @@
 --                                                                          --
 --                                 B o d y                                  --
 --                                                                          --
---          Copyright (C) 1992-2006, Free Software Foundation, Inc.         --
+--          Copyright (C) 1992-2007, Free Software Foundation, Inc.         --
 --                                                                          --
 -- GNAT is free software;  you can  redistribute it  and/or modify it under --
 -- terms of the  GNU General Public License as published  by the Free Soft- --
@@ -25,7 +25,7 @@
 ------------------------------------------------------------------------------
 
 --  This package provides the core high level routines used by GNATDLL
---  to build Windows DLL
+--  to build Windows DLL.
 
 with Ada.Text_IO;
 
@@ -38,6 +38,10 @@ package body MDLL is
    use Ada;
    use GNAT;
 
+   --  Convention used for the library names on Windows:
+   --  DLL:            <name>.dll
+   --  Import library: lib<name>.dll
+
    function Get_Dll_Name (Lib_Filename : String) return String;
    --  Returns <Lib_Filename> if it contains a file extension otherwise it
    --  returns <Lib_Filename>.dll.
@@ -69,7 +73,7 @@ package body MDLL is
       Bas_File : aliased constant String := Base_Filename & ".base";
       Dll_File : aliased          String := Get_Dll_Name (Lib_Filename);
       Exp_File : aliased          String := Base_Filename & ".exp";
-      Lib_File : aliased constant String := "lib" & Base_Filename & ".a";
+      Lib_File : aliased constant String := "lib" & Base_Filename & ".dll.a";
 
       Bas_Opt  : aliased String := "-Wl,--base-file," & Bas_File;
       Lib_Opt  : aliased String := "-mdll";
@@ -450,10 +454,32 @@ package body MDLL is
       --------------------------
 
       procedure Build_Import_Library (Lib_Filename : String) is
+
+         function No_Lib_Prefix (Filename : String) return String;
+         --  Return Filename without the lib prefix if present
+
+         -------------------
+         -- No_Lib_Prefix --
+         -------------------
+
+         function No_Lib_Prefix (Filename : String) return String is
+         begin
+            if Filename (Filename'First .. Filename'First + 2) = "lib" then
+               return Filename (Filename'First + 3 .. Filename'Last);
+            else
+               return Filename;
+            end if;
+         end No_Lib_Prefix;
+
+         --  Local variables
+
          Def_File      : String renames Def_Filename;
          Dll_File      : constant String := Get_Dll_Name (Lib_Filename);
-         Base_Filename : constant String := MDLL.Fil.Ext_To (Lib_Filename);
-         Lib_File      : constant String := "lib" & Base_Filename & ".a";
+         Base_Filename : constant String :=
+                           MDLL.Fil.Ext_To (No_Lib_Prefix (Lib_Filename));
+         Lib_File      : constant String := "lib" & Base_Filename & ".dll.a";
+
+      --  Start of processing for Build_Import_Library
 
       begin
          if not Quiet then
@@ -469,20 +495,7 @@ package body MDLL is
    --  Start of processing for Build_Import_Library
 
    begin
-      --  If the library has the form lib<name>.a then the def file should be
-      --  <name>.def and the DLL to link against <name>.dll. This is a Windows
-      --  convention and we try as much as possible to follow the platform
-      --  convention.
-
-      if Lib_Filename'Length > 3
-        and then
-          Lib_Filename (Lib_Filename'First .. Lib_Filename'First + 2) = "lib"
-      then
-         Build_Import_Library
-           (Lib_Filename (Lib_Filename'First + 3 .. Lib_Filename'Last));
-      else
-         Build_Import_Library (Lib_Filename);
-      end if;
+      Build_Import_Library (Lib_Filename);
    end Build_Import_Library;
 
    ------------------
diff --git a/gcc/ada/mlib-utl.adb b/gcc/ada/mlib-utl.adb
index 3352591..0aedfe6 100644
--- a/gcc/ada/mlib-utl.adb
+++ b/gcc/ada/mlib-utl.adb
@@ -36,7 +36,7 @@ with System;
 
 package body MLib.Utl is
 
-   Gcc_Name : constant String := Osint.Program_Name ("gcc").all;
+   Gcc_Name : String_Access;
    --  Default value of the "gcc" executable used in procedure Gcc
 
    Gcc_Exec : String_Access;
@@ -408,10 +408,14 @@ package body MLib.Utl is
    begin
       if Driver_Name = No_Name then
          if Gcc_Exec = null then
-            Gcc_Exec := Locate_Exec_On_Path (Gcc_Name);
+            if Gcc_Name = null then
+               Gcc_Name :=  Osint.Program_Name ("gcc");
+            end if;
+
+            Gcc_Exec := Locate_Exec_On_Path (Gcc_Name.all);
 
             if Gcc_Exec = null then
-               Fail (Gcc_Name, " not found in path");
+               Fail (Gcc_Name.all, " not found in path");
             end if;
          end if;
 
@@ -579,7 +583,7 @@ package body MLib.Utl is
 
       if not Success then
          if Driver_Name = No_Name then
-            Fail (Gcc_Name, " execution error");
+            Fail (Gcc_Name.all, " execution error");
          else
             Fail (Get_Name_String (Driver_Name), " execution error");
          end if;
diff --git a/gcc/ada/osint.adb b/gcc/ada/osint.adb
index a78ab8d..13c75be 100644
--- a/gcc/ada/osint.adb
+++ b/gcc/ada/osint.adb
@@ -857,8 +857,7 @@ package body Osint is
       --  If we come here, the user has typed the executable name with no
       --  directory prefix.
 
-      return Get_Install_Dir
-        (System.OS_Lib.Locate_Exec_On_Path (Exec_Name.all).all);
+      return Get_Install_Dir (Locate_Exec_On_Path (Exec_Name.all).all);
    end Executable_Prefix;
 
    ------------------
@@ -1055,6 +1054,11 @@ package body Osint is
    begin
       Fill_Arg (Command_Name'Address, 0);
 
+      if Command_Name = "" then
+         Name_Len := 0;
+         return;
+      end if;
+
       --  The program name might be specified by a full path name. However,
       --  we don't want to print that all out in an error message, so the
       --  path might need to be stripped away.
@@ -1824,6 +1828,16 @@ package body Osint is
       return Name_Enter;
    end Object_File_Name;
 
+   -------------------------------
+   -- OS_Exit_Through_Exception --
+   -------------------------------
+
+   procedure OS_Exit_Through_Exception (Status : Integer) is
+   begin
+      Current_Exit_Status := Status;
+      raise Types.Terminate_Program;
+   end OS_Exit_Through_Exception;
+
    --------------------------
    -- OS_Time_To_GNAT_Time --
    --------------------------
diff --git a/gcc/ada/osint.ads b/gcc/ada/osint.ads
index c31220c..d97d451 100644
--- a/gcc/ada/osint.ads
+++ b/gcc/ada/osint.ads
@@ -520,6 +520,14 @@ package Osint is
    -- Termination --
    -----------------
 
+   Current_Exit_Status : Integer := 0;
+   --  Exit status that is set with procedure OS_Exit_Through_Exception below
+   --  and can be used in exception handler for Types.Terminate_Program to call
+   --  Set_Exit_Status as the last action of the program.
+
+   procedure OS_Exit_Through_Exception (Status : Integer);
+   --  Set the Current_Exit_Status, then raise Types.Terminate_Program
+
    type Exit_Code_Type is (
       E_Success,    -- No warnings or errors
       E_Warnings,   -- Compiler warnings generated
diff --git a/gcc/ada/par-load.adb b/gcc/ada/par-load.adb
index f924523..1faef63 100644
--- a/gcc/ada/par-load.adb
+++ b/gcc/ada/par-load.adb
@@ -322,11 +322,10 @@ begin
       if Spec_Name /= No_Unit_Name then
          Unum :=
            Load_Unit
-             (Load_Name         => Spec_Name,
-              Required          => True,
-              Subunit           => False,
-              Error_Node        => Curunit,
-              From_Limited_With => From_Limited_With);
+             (Load_Name  => Spec_Name,
+              Required   => True,
+              Subunit    => False,
+              Error_Node => Curunit);
 
          if Unum /= No_Unit then
             Set_Parent_Spec (Unit (Curunit), Cunit (Unum));
@@ -389,14 +388,12 @@ begin
 
             Unum :=
               Load_Unit
-                (Load_Name         => Spec_Name,
-                 Required          => False,
-                 Subunit           => False,
-                 Error_Node        => With_Node,
-                 Renamings         => True,
-                 From_Limited_With => From_Limited_With
-                                        or else
-                                      Limited_Present (Context_Node));
+                (Load_Name  => Spec_Name,
+                 Required   => False,
+                 Subunit    => False,
+                 Error_Node => With_Node,
+                 Renamings  => True,
+                 With_Node  => Context_Node);
 
             --  If we find the unit, then set spec pointer in the N_With_Clause
             --  to point to the compilation unit for the spec. Remember that
diff --git a/gcc/ada/rtsfind.adb b/gcc/ada/rtsfind.adb
index af2163d..56e1ce0 100644
--- a/gcc/ada/rtsfind.adb
+++ b/gcc/ada/rtsfind.adb
@@ -33,6 +33,7 @@ with Elists;   use Elists;
 with Errout;   use Errout;
 with Fname;    use Fname;
 with Fname.UF; use Fname.UF;
+with Gnatvsn;  use Gnatvsn;
 with Lib;      use Lib;
 with Lib.Load; use Lib.Load;
 with Namet;    use Namet;
@@ -862,9 +863,10 @@ package body Rtsfind is
 
       procedure Check_RPC;
       --  Reject programs that make use of distribution features not supported
-      --  on the current target. On such targets (VMS, Vxworks, others?) we
-      --  only provide a minimal body for System.Rpc that only supplies an
-      --  implementation of partition_id.
+      --  on the current target. Also check that the PCS is compatible with
+      --  the code generator version. On such targets (VMS, Vxworks, others?)
+      --  we provide a minimal body for System.Rpc that only supplies an
+      --  implementation of Partition_Id.
 
       function Find_Local_Entity (E : RE_Id) return Entity_Id;
       --  This function is used when entity E is in this compilation's main
@@ -875,6 +877,25 @@ package body Rtsfind is
       ---------------
 
       procedure Check_RPC is
+
+         procedure Check_RPC_Failure (Msg : String);
+         pragma No_Return (Check_RPC_Failure);
+         --  Display Msg on standard error and raise Unrecoverable_Error
+
+         -----------------------
+         -- Check_RPC_Failure --
+         -----------------------
+
+         procedure Check_RPC_Failure (Msg : String) is
+         begin
+            Set_Standard_Error;
+            Write_Str (Msg);
+            Write_Eol;
+            raise Unrecoverable_Error;
+         end Check_RPC_Failure;
+
+      --  Start of processing for Check_RPC
+
       begin
          --  Bypass this check if debug flag -gnatdR set
 
@@ -897,12 +918,14 @@ package body Rtsfind is
                      E = RE_Params_Stream_Type
                        or else
                      E = RE_Request_Access)
-           and then Get_PCS_Name = Name_No_DSA
          then
-            Set_Standard_Error;
-            Write_Str ("distribution feature not supported");
-            Write_Eol;
-            raise Unrecoverable_Error;
+            if Get_PCS_Name = Name_No_DSA then
+               Check_RPC_Failure ("distribution feature not supported");
+
+            elsif Get_PCS_Version /= Gnatvsn.PCS_Version_Number then
+               Check_RPC_Failure ("PCS version mismatch");
+
+            end if;
          end if;
       end Check_RPC;
 
diff --git a/gcc/ada/s-gearop.adb b/gcc/ada/s-gearop.adb
index b6a3c79..8d5d39b 100644
--- a/gcc/ada/s-gearop.adb
+++ b/gcc/ada/s-gearop.adb
@@ -6,7 +6,7 @@
 --                                                                          --
 --                                 B o d y                                  --
 --                                                                          --
---            Copyright (C) 2006, Free Software Foundation, Inc.            --
+--         Copyright (C) 2006-2007, Free Software Foundation, Inc.          --
 --                                                                          --
 -- GNAT is free software;  you can  redistribute it  and/or modify it under --
 -- terms of the  GNU General Public License as published  by the Free Soft- --
@@ -151,7 +151,12 @@ package body System.Generic_Array_Operations is
 
       for J in R'Range (1) loop
          for K in R'Range (2) loop
-            R (J, K) := Operation (Left (J, K), Right (J, K));
+            R (J, K) :=
+              Operation
+                (Left (J, K),
+                 Right
+                   (J - R'First (1) + Right'First (1),
+                    K - R'First (2) + Right'First (2)));
          end loop;
       end loop;
 
@@ -179,7 +184,12 @@ package body System.Generic_Array_Operations is
 
       for J in R'Range (1) loop
          for K in R'Range (2) loop
-            R (J, K) := Operation (X (J, K), Y (J, K), Z);
+            R (J, K) :=
+              Operation
+                (X (J, K),
+                 Y (J - R'First (1) + Y'First (1),
+                    K - R'First (2) + Y'First (2)),
+                 Z);
          end loop;
       end loop;
 
@@ -203,7 +213,7 @@ package body System.Generic_Array_Operations is
       end if;
 
       for J in R'Range loop
-         R (J) := Operation (Left (J), Right (J));
+         R (J) := Operation (Left (J), Right (J - R'First + Right'First));
       end loop;
 
       return R;
@@ -227,7 +237,7 @@ package body System.Generic_Array_Operations is
       end if;
 
       for J in R'Range loop
-         R (J) := Operation (X (J), Y (J), Z);
+         R (J) := Operation (X (J), Y (J - X'First + Y'First), Z);
       end loop;
 
       return R;
@@ -402,8 +412,8 @@ package body System.Generic_Array_Operations is
    begin
       for J in R'Range (1) loop
          for K in R'Range (2) loop
-            R (J, K) := A (J - R'First (1) + A'First (1),
-                           K - R'First (2) + A'First (2));
+            R (J, K) := A (K - R'First (2) + A'First (1),
+                           J - R'First (1) + A'First (2));
          end loop;
       end loop;
    end Transpose;
diff --git a/gcc/ada/s-gecobl.adb b/gcc/ada/s-gecobl.adb
index db657c3..789b0af 100644
--- a/gcc/ada/s-gecobl.adb
+++ b/gcc/ada/s-gecobl.adb
@@ -6,7 +6,7 @@
 --                                                                          --
 --                                 B o d y                                  --
 --                                                                          --
---            Copyright (C) 2006, Free Software Foundation, Inc.            --
+--         Copyright (C) 2006-2007, Free Software Foundation, Inc.          --
 --                                                                          --
 -- GNAT is free software;  you can  redistribute it  and/or modify it under --
 -- terms of the  GNU General Public License as published  by the Free Soft- --
@@ -146,7 +146,7 @@ package body System.Generic_Complex_BLAS is
             function Conv_X is new Unchecked_Conversion (Address, X_Ptr);
             function Conv_Y is new Unchecked_Conversion (Address, Y_Ptr);
          begin
-            return To_Complex (BLAS.cdot (N, Conv_X (X'Address).all, Inc_X,
+            return To_Complex (BLAS.cdotu (N, Conv_X (X'Address).all, Inc_X,
                                   Conv_Y (Y'Address).all, Inc_Y));
          end;
 
@@ -157,12 +157,12 @@ package body System.Generic_Complex_BLAS is
             function Conv_X is new Unchecked_Conversion (Address, X_Ptr);
             function Conv_Y is new Unchecked_Conversion (Address, Y_Ptr);
          begin
-            return To_Complex (BLAS.zdot (N, Conv_X (X'Address).all, Inc_X,
+            return To_Complex (BLAS.zdotu (N, Conv_X (X'Address).all, Inc_X,
                                      Conv_Y (Y'Address).all, Inc_Y));
          end;
 
       else
-         return To_Complex (BLAS.zdot (N, To_Double_Complex (X), Inc_X,
+         return To_Complex (BLAS.zdotu (N, To_Double_Complex (X), Inc_X,
                                   To_Double_Complex (Y), Inc_Y));
       end if;
    end dot;
@@ -177,7 +177,7 @@ package body System.Generic_Complex_BLAS is
       M       : Positive;
       N       : Positive;
       K       : Positive;
-      Alpha   : Complex := (1.0, 1.0);
+      Alpha   : Complex := (1.0, 0.0);
       A       : Complex_Matrix;
       Ld_A    : Integer;
       B       : Complex_Matrix;
@@ -251,7 +251,7 @@ package body System.Generic_Complex_BLAS is
      (Trans : access constant Character;
       M     : Natural := 0;
       N     : Natural := 0;
-      Alpha : Complex := (1.0, 1.0);
+      Alpha : Complex := (1.0, 0.0);
       A     : Complex_Matrix;
       Ld_A  : Positive;
       X     : Complex_Vector;
diff --git a/gcc/ada/s-gecobl.ads b/gcc/ada/s-gecobl.ads
index 9d9d216..533e7ae 100644
--- a/gcc/ada/s-gecobl.ads
+++ b/gcc/ada/s-gecobl.ads
@@ -6,7 +6,7 @@
 --                                                                          --
 --                                 S p e c                                  --
 --                                                                          --
---            Copyright (C) 2006, Free Software Foundation, Inc.            --
+--         Copyright (C) 2006-2007, Free Software Foundation, Inc.          --
 --                                                                          --
 -- GNAT is free software;  you can  redistribute it  and/or modify it under --
 -- terms of the  GNU General Public License as published  by the Free Soft- --
@@ -73,7 +73,7 @@ package System.Generic_Complex_BLAS is
      (Trans : access constant Character;
       M     : Natural := 0;
       N     : Natural := 0;
-      Alpha : Complex := (1.0, 1.0);
+      Alpha : Complex := (1.0, 0.0);
       A     : Complex_Matrix;
       Ld_A  : Positive;
       X     : Complex_Vector;
@@ -92,7 +92,7 @@ package System.Generic_Complex_BLAS is
       M       : Positive;
       N       : Positive;
       K       : Positive;
-      Alpha   : Complex := (1.0, 1.0);
+      Alpha   : Complex := (1.0, 0.0);
       A       : Complex_Matrix;
       Ld_A    : Integer;
       B       : Complex_Matrix;
diff --git a/gcc/ada/s-gerela.adb b/gcc/ada/s-gerela.adb
index aa0e964..3641b4c 100644
--- a/gcc/ada/s-gerela.adb
+++ b/gcc/ada/s-gerela.adb
@@ -282,7 +282,7 @@ package body System.Generic_Real_LAPACK is
       N      : Natural;
       A      : in out Real_Matrix;
       Ld_A   : Positive;
-      Tau    : in Real_Vector;
+      Tau    : Real_Vector;
       Work   : out Real_Vector;
       L_Work : Integer;
       Info   : access Integer)
diff --git a/gcc/ada/s-gerela.ads b/gcc/ada/s-gerela.ads
index c9f29f2..7b2a562 100644
--- a/gcc/ada/s-gerela.ads
+++ b/gcc/ada/s-gerela.ads
@@ -94,7 +94,7 @@ package System.Generic_Real_LAPACK is
       N      : Natural;
       A      : in out Real_Matrix;
       Ld_A   : Positive;
-      Tau    : in Real_Vector;
+      Tau    : Real_Vector;
       Work   : out Real_Vector;
       L_Work : Integer;
       Info   : access Integer);
diff --git a/gcc/ada/s-os_lib.adb b/gcc/ada/s-os_lib.adb
index 9649e1f..c37ab61 100755
--- a/gcc/ada/s-os_lib.adb
+++ b/gcc/ada/s-os_lib.adb
@@ -1698,18 +1698,13 @@ package body System.OS_Lib is
       Canonical_File_Addr : System.Address;
       Canonical_File_Len  : Integer;
 
-      Need_To_Check_Drive_Letter : Boolean := False;
-      --  Set to true if Name is an absolute path that starts with "//"
-
       function Strlen (S : System.Address) return Integer;
       pragma Import (C, Strlen, "strlen");
 
       function Final_Value (S : String) return String;
-      --  Make final adjustment to the returned string.
-      --  To compensate for non standard path name in Interix,
-      --  if S is "/x" or starts with "/x", where x is a capital
-      --  letter 'A' to 'Z', add an additional '/' at the beginning
-      --  so that the returned value starts with "//x".
+      --  Make final adjustment to the returned string. This function strips
+      --  trailing directory separators, and folds returned string to lower
+      --  case if required.
 
       function Get_Directory  (Dir : String) return String;
       --  If Dir is not empty, return it, adding a directory separator
@@ -1727,71 +1722,33 @@ package body System.OS_Lib is
          Last : Natural;
 
       begin
-         --  Interix has the non standard notion of disk drive
-         --  indicated by two '/' followed by a capital letter
-         --  'A' .. 'Z'. One of the two '/' may have been removed
-         --  by Normalize_Pathname. It has to be added again.
-         --  For other OSes, this should not make no difference.
-
-         if Need_To_Check_Drive_Letter
-           and then S'Length >= 2
-           and then S (S'First) = '/'
-           and then S (S'First + 1) in 'A' .. 'Z'
-           and then (S'Length = 2 or else S (S'First + 2) = '/')
-         then
-            declare
-               Result : String (1 .. S'Length + 1);
-
-            begin
-               Result (1) := '/';
-               Result (2 .. Result'Last) := S;
-               Last := Result'Last;
-
-               if Fold_To_Lower_Case then
-                  System.Case_Util.To_Lower (Result);
-               end if;
-
-               --  Remove trailing directory separator, if any
-
-               if Last > 1 and then
-                 (Result (Last) = '/' or else
-                  Result (Last) = Directory_Separator)
-               then
-                  Last := Last - 1;
-               end if;
+         if Fold_To_Lower_Case then
+            System.Case_Util.To_Lower (S1);
+         end if;
 
-               return Result (1 .. Last);
-            end;
+         --  Remove trailing directory separator, if any
 
-         else
-            if Fold_To_Lower_Case then
-               System.Case_Util.To_Lower (S1);
-            end if;
+         Last := S1'Last;
 
-            --  Remove trailing directory separator, if any
-
-            Last := S1'Last;
+         if Last > 1
+           and then (S1 (Last) = '/'
+                       or else
+                     S1 (Last) = Directory_Separator)
+         then
+            --  Special case for Windows: C:\
 
-            if Last > 1
-              and then (S1 (Last) = '/'
-                          or else
-                        S1 (Last) = Directory_Separator)
+            if Last = 3
+              and then S1 (1) /= Directory_Separator
+              and then S1 (2) = ':'
             then
-               --  Special case for Windows: C:\
-
-               if Last = 3
-                 and then S1 (1) /= Directory_Separator
-                 and then S1 (2) = ':'
-               then
-                  null;
+               null;
 
-               else
-                  Last := Last - 1;
-               end if;
+            else
+               Last := Last - 1;
             end if;
-
-            return S1 (1 .. Last);
          end if;
+
+         return S1 (1 .. Last);
       end Final_Value;
 
       -------------------
@@ -1956,12 +1913,6 @@ package body System.OS_Lib is
             Last := Reference_Dir'Length;
          end if;
 
-         --  If name starts with "//", we may have a drive letter on Interix
-
-         if Last = 1 and then End_Path >= 3 then
-            Need_To_Check_Drive_Letter := (Path_Buffer (1 .. 2)) = "//";
-         end if;
-
          Start  := Last + 1;
          Finish := Last;
 
@@ -2167,6 +2118,28 @@ package body System.OS_Lib is
       return Open_Read_Write (C_Name (C_Name'First)'Address, Fmode);
    end Open_Read_Write;
 
+   -------------
+   -- OS_Exit --
+   -------------
+
+   procedure OS_Exit (Status : Integer) is
+   begin
+      OS_Exit_Ptr (Status);
+      raise Program_Error;
+   end OS_Exit;
+
+   ---------------------
+   -- OS_Exit_Default --
+   ---------------------
+
+   procedure OS_Exit_Default (Status : Integer) is
+      procedure GNAT_OS_Exit (Status : Integer);
+      pragma Import (C, GNAT_OS_Exit, "__gnat_os_exit");
+      pragma No_Return (GNAT_OS_Exit);
+   begin
+      GNAT_OS_Exit (Status);
+   end OS_Exit_Default;
+
    --------------------
    -- Pid_To_Integer --
    --------------------
diff --git a/gcc/ada/s-os_lib.ads b/gcc/ada/s-os_lib.ads
index 2d624cf..cfa4148 100755
--- a/gcc/ada/s-os_lib.ads
+++ b/gcc/ada/s-os_lib.ads
@@ -814,12 +814,24 @@ package System.OS_Lib is
    --  changes made by Setenv calls. This procedure is not available on VMS.
 
    procedure OS_Exit (Status : Integer);
-   pragma Import (C, OS_Exit, "__gnat_os_exit");
    pragma No_Return (OS_Exit);
+
    --  Exit to OS with given status code (program is terminated). Note that
    --  this is abrupt termination. All tasks are immediately terminated. There
    --  are no finalization or other Ada-specific cleanup actions performed. On
-   --  systems with atexit handlers (such as Unix and Windows) are performed.
+   --  systems with atexit handlers (such as Unix and Windows), atexit handlers
+   --  are called.
+
+   type OS_Exit_Subprogram is access procedure (Status : Integer);
+
+   procedure OS_Exit_Default (Status : Integer);
+   pragma No_Return (OS_Exit_Default);
+   --  Default implementation of procedure OS_Exit
+
+   OS_Exit_Ptr : OS_Exit_Subprogram := OS_Exit_Default'Access;
+   --  OS_Exit is implemented through this access value. It it then possible to
+   --  change the implementation of OS_Exit by redirecting OS_Exit_Ptr to an
+   --  other implementation.
 
    procedure OS_Abort;
    pragma Import (C, OS_Abort, "abort");
diff --git a/gcc/ada/s-parint.ads b/gcc/ada/s-parint.ads
index 07d7d7c..39b96c9 100644
--- a/gcc/ada/s-parint.ads
+++ b/gcc/ada/s-parint.ads
@@ -6,7 +6,7 @@
 --                                                                          --
 --                                  S p e c                                 --
 --                                                                          --
---          Copyright (C) 1995-2006, Free Software Foundation, Inc.         --
+--          Copyright (C) 1995-2007, Free Software Foundation, Inc.         --
 --                                                                          --
 -- GNARL is free software; you can  redistribute it  and/or modify it under --
 -- terms of the  GNU General Public License as published  by the Free Soft- --
@@ -45,6 +45,12 @@ package System.Partition_Interface is
 
    type DSA_Implementation_Name is (No_DSA, GARLIC_DSA, PolyORB_DSA);
    DSA_Implementation : constant DSA_Implementation_Name := No_DSA;
+   --  Identification of this DSA implementation variant
+
+   PCS_Version : constant := 1;
+   --  Version of the PCS API (for Exp_Dist consistency check).
+   --  This version number is matched against Gnatvsn.PCS_Version_Number to
+   --  ensure that the versions of Exp_Dist and the PCS are consistent.
 
    --  RCI receiving stubs contain a table of descriptors for
    --  all user subprograms exported by the unit.
diff --git a/gcc/ada/sem_ch7.adb b/gcc/ada/sem_ch7.adb
index 4bf3e49..65930a6 100644
--- a/gcc/ada/sem_ch7.adb
+++ b/gcc/ada/sem_ch7.adb
@@ -1100,7 +1100,10 @@ package body Sem_Ch7 is
 
          --  The current compilation unit may include private with_clauses,
          --  which are visible in the private part of the current nested
-         --  package, and have to be installed now.
+         --  package, and have to be installed now. This is not done for
+         --  nested instantiations, where the private with_clauses of the
+         --  enclosing unit have no effect once the instantiation info is
+         --  established and we start analyzing the package declaration.
 
          declare
             Comp_Unit : constant Entity_Id := Cunit_Entity (Current_Sem_Unit);
@@ -1108,6 +1111,7 @@ package body Sem_Ch7 is
             if (Ekind (Comp_Unit) = E_Package
                  or else Ekind (Comp_Unit) = E_Generic_Package)
               and then not In_Private_Part (Comp_Unit)
+              and then not In_Instance
             then
                Install_Private_With_Clauses (Comp_Unit);
                Private_With_Clauses_Installed := True;
@@ -2088,7 +2092,7 @@ package body Sem_Ch7 is
 
             else
                Error_Msg_N
-                  ("missing full declaration for deferred constant ('R'M 7.4)",
+                  ("missing full declaration for deferred constant (RM 7.4)",
                      Id);
 
                if Is_Limited_Type (Etype (Id)) then
diff --git a/gcc/ada/sem_dist.adb b/gcc/ada/sem_dist.adb
index 9b161a9..87007ec 100644
--- a/gcc/ada/sem_dist.adb
+++ b/gcc/ada/sem_dist.adb
@@ -6,7 +6,7 @@
 --                                                                          --
 --                                 B o d y                                  --
 --                                                                          --
---          Copyright (C) 1992-2006, Free Software Foundation, Inc.         --
+--          Copyright (C) 1992-2007, Free Software Foundation, Inc.         --
 --                                                                          --
 -- GNAT is free software;  you can  redistribute it  and/or modify it under --
 -- terms of the  GNU General Public License as published  by the Free Soft- --
@@ -36,12 +36,14 @@ with Namet;    use Namet;
 with Opt;      use Opt;
 with Rtsfind;  use Rtsfind;
 with Sem;      use Sem;
+with Sem_Eval; use Sem_Eval;
 with Sem_Res;  use Sem_Res;
 with Sem_Util; use Sem_Util;
 with Sinfo;    use Sinfo;
 with Stand;    use Stand;
 with Stringt;  use Stringt;
 with Tbuild;   use Tbuild;
+with Uintp;    use Uintp;
 
 package body Sem_Dist is
 
@@ -202,13 +204,36 @@ package body Sem_Dist is
    ------------------
 
    function Get_PCS_Name return PCS_Names is
-      PCS_Name : constant PCS_Names :=
-                   Chars (Entity (Expression
-                                    (Parent (RTE (RE_DSA_Implementation)))));
    begin
-      return PCS_Name;
+      return
+        Chars (Entity (Expression (Parent (RTE (RE_DSA_Implementation)))));
    end Get_PCS_Name;
 
+   ---------------------
+   -- Get_PCS_Version --
+   ---------------------
+
+   function Get_PCS_Version return Int is
+      PCS_Version_Entity : Entity_Id;
+      PCS_Version        : Int;
+
+   begin
+      if RTE_Available (RE_PCS_Version) then
+         PCS_Version_Entity := RTE (RE_PCS_Version);
+         pragma Assert (Ekind (PCS_Version_Entity) = E_Named_Integer);
+         PCS_Version :=
+           UI_To_Int (Expr_Value (Constant_Value (PCS_Version_Entity)));
+
+      else
+         --  Case of System.Partition_Interface.PCS_Version not found:
+         --  return a null version.
+
+         PCS_Version := 0;
+      end if;
+
+      return PCS_Version;
+   end Get_PCS_Version;
+
    ------------------------
    -- Is_All_Remote_Call --
    ------------------------
diff --git a/gcc/ada/sem_dist.ads b/gcc/ada/sem_dist.ads
index f27a9e6..aad314d 100644
--- a/gcc/ada/sem_dist.ads
+++ b/gcc/ada/sem_dist.ads
@@ -6,7 +6,7 @@
 --                                                                          --
 --                                 S p e c                                  --
 --                                                                          --
---          Copyright (C) 1992-2006, Free Software Foundation, Inc.         --
+--          Copyright (C) 1992-2007, Free Software Foundation, Inc.         --
 --                                                                          --
 -- GNAT is free software;  you can  redistribute it  and/or modify it under --
 -- terms of the  GNU General Public License as published  by the Free Soft- --
@@ -35,6 +35,12 @@ package Sem_Dist is
    --  Return the name of a literal of type System.Partition_Interface.
    --  DSA_Implementation_Type indicating what PCS is currently in use.
 
+   function Get_PCS_Version return Int;
+   --  Return the version number of the PCS API implemented by the PCS.
+   --  The consistency of this version with the one expected by Exp_Dist
+   --  (Gnatvsn.PCS_Version_Number) in Rtsfind.Check_RPC.
+   --  If no PCS version information is available, 0 is returned.
+
    procedure Add_Stub_Constructs (N : Node_Id);
    --  Create the stubs constructs for a remote call interface package
    --  specification or body or for a shared passive specification. For caller
diff --git a/gcc/ada/sinfo.adb b/gcc/ada/sinfo.adb
index 58ae0456..033b60f 100644
--- a/gcc/ada/sinfo.adb
+++ b/gcc/ada/sinfo.adb
@@ -1550,14 +1550,6 @@ package body Sinfo is
       return Flag7 (N);
    end Is_Asynchronous_Call_Block;
 
-   function Is_Coextension
-      (N : Node_Id) return Boolean is
-   begin
-      pragma Assert (False
-        or else NT (N).Nkind = N_Allocator);
-      return Flag18 (N);
-   end Is_Coextension;
-
    function Is_Component_Left_Opnd
       (N : Node_Id) return Boolean is
    begin
@@ -1582,6 +1574,14 @@ package body Sinfo is
       return Flag16 (N);
    end Is_Controlling_Actual;
 
+   function Is_Dynamic_Coextension
+      (N : Node_Id) return Boolean is
+   begin
+      pragma Assert (False
+        or else NT (N).Nkind = N_Allocator);
+      return Flag18 (N);
+   end Is_Dynamic_Coextension;
+
    function Is_Entry_Barrier_Function
       (N : Node_Id) return Boolean is
    begin
@@ -4249,14 +4249,6 @@ package body Sinfo is
       Set_Flag7 (N, Val);
    end Set_Is_Asynchronous_Call_Block;
 
-   procedure Set_Is_Coextension
-      (N : Node_Id; Val : Boolean := True) is
-   begin
-      pragma Assert (False
-        or else NT (N).Nkind = N_Allocator);
-      Set_Flag18 (N, Val);
-   end Set_Is_Coextension;
-
    procedure Set_Is_Component_Left_Opnd
       (N : Node_Id; Val : Boolean := True) is
    begin
@@ -4281,6 +4273,14 @@ package body Sinfo is
       Set_Flag16 (N, Val);
    end Set_Is_Controlling_Actual;
 
+   procedure Set_Is_Dynamic_Coextension
+      (N : Node_Id; Val : Boolean := True) is
+   begin
+      pragma Assert (False
+        or else NT (N).Nkind = N_Allocator);
+      Set_Flag18 (N, Val);
+   end Set_Is_Dynamic_Coextension;
+
    procedure Set_Is_Entry_Barrier_Function
       (N : Node_Id; Val : Boolean := True) is
    begin
diff --git a/gcc/ada/sinfo.ads b/gcc/ada/sinfo.ads
index ccf63ed..403c5a2 100644
--- a/gcc/ada/sinfo.ads
+++ b/gcc/ada/sinfo.ads
@@ -630,7 +630,7 @@ package Sinfo is
    --    starting at the highest addressed element. Note that if neither of the
    --    flags Forwards_OK or Backwards_OK is set, it means that the front end
    --    could not determine that either direction is definitely safe, and a
-   --    runtime check is required.
+   --    runtime check may be required if the backend cannot figure it out.
 
    --  Body_To_Inline (Node3-Sem)
    --    present in subprogram declarations. Denotes analyzed but unexpanded
@@ -651,7 +651,7 @@ package Sinfo is
    --    permitted (in Ada 83 or Ada 95).
 
    --  By_Ref (Flag5-Sem)
-   --    A flag present in N_Return_Statement and
+   --    A flag present in N_Simple_Return_Statement and
    --    N_Extended_Return_Statement.
    --    It is set when the returned expression is already allocated on the
    --    secondary stack and thus the result is passed by reference rather
@@ -671,7 +671,7 @@ package Sinfo is
    --    access discriminants of the allocated object.
 
    --  Comes_From_Extended_Return_Statement (Flag18-Sem)
-   --    Present in N_Return_Statement nodes. True if this node was
+   --    Present in N_Simple_Return_Statement nodes. True if this node was
    --    constructed as part of the expansion of an
    --    N_Extended_Return_Statement.
 
@@ -866,7 +866,7 @@ package Sinfo is
    --  Do_Tag_Check (Flag13-Sem)
    --    This flag is set on an N_Assignment_Statement, N_Function_Call,
    --    N_Procedure_Call_Statement, N_Type_Conversion,
-   --    N_Return_Statement, or N_Extended_Return_Statement
+   --    N_Simple_Return_Statement, or N_Extended_Return_Statement
    --    node to indicate that the tag check can be suppressed. It is not
    --    yet decided how this flag is used (TBD ???).
 
@@ -1145,12 +1145,6 @@ package Sinfo is
    --    expansion of an asynchronous entry call. Such a block needs cleanup
    --    handler to assure that the call is cancelled.
 
-   --  Is_Coextension (Flag18-Sem)
-   --    Present in allocator nodes, to indicate that this is an allocator
-   --    for an access discriminant of a dynamically allocated object. The
-   --    coextension must be deallocated and finalized at the same time as
-   --    the enclosing object.
-
    --  Is_Component_Left_Opnd  (Flag13-Sem)
    --  Is_Component_Right_Opnd (Flag14-Sem)
    --    Present in concatenation nodes, to indicate that the corresponding
@@ -1162,6 +1156,12 @@ package Sinfo is
    --    a dispatching call. It is off in all other cases. See Sem_Disp for
    --    details of its use.
 
+   --  Is_Dynamic_Coextension (Flag18-Sem)
+   --    Present in allocator nodes, to indicate that this is an allocator
+   --    for an access discriminant of a dynamically allocated object. The
+   --    coextension must be deallocated and finalized at the same time as
+   --    the enclosing object.
+
    --  Is_Entry_Barrier_Function (Flag8-Sem)
    --    This flag is set in an N_Subprogram_Body node which is the expansion
    --    of an entry barrier from a protected entry body. It is used for the
@@ -1462,11 +1462,11 @@ package Sinfo is
    --    is used to clarify output from the packed array cases.
 
    --  Procedure_To_Call (Node2-Sem)
-   --    Present in N_Allocator, N_Free_Statement, N_Return_Statement,
+   --    Present in N_Allocator, N_Free_Statement, N_Simple_Return_Statement,
    --    and N_Extended_Return_Statement nodes. References the entity for the
    --    declaration of the procedure to be called to accomplish the required
    --    operation (i.e. for the Allocate procedure in the case of N_Allocator
-   --    and N_Return_Statement and N_Extended_Return_Statement (for
+   --    and N_Simple_Return_Statement and N_Extended_Return_Statement (for
    --    allocating the return value), and for the Deallocate procedure in the
    --    case of N_Free_Statement.
 
@@ -1497,7 +1497,7 @@ package Sinfo is
    --    renaming declaration allows registering of the proper exception name.
 
    --  Return_Statement_Entity (Node5-Sem)
-   --    Present in N_Return_Statement and N_Extended_Return_Statement.
+   --    Present in N_Simple_Return_Statement and N_Extended_Return_Statement.
    --    Points to an E_Return_Statement representing the return statement.
 
    --  Return_Object_Declarations (List3)
@@ -1547,8 +1547,8 @@ package Sinfo is
    --    Static_Processing_OK flag set.
 
    --  Storage_Pool (Node1-Sem)
-   --    Present in N_Allocator, N_Free_Statement, N_Return_Statement, and
-   --    N_Extended_Return_Statement nodes. References the entity for the
+   --    Present in N_Allocator, N_Free_Statement, N_Simple_Return_Statement,
+   --    and N_Extended_Return_Statement nodes. References the entity for the
    --    storage pool to be used for the allocate or free call or for the
    --    allocation of the returned value from function. Empty indicates that
    --    the global default default pool is to be used. Note that in the case
@@ -3666,7 +3666,7 @@ package Sinfo is
       --  No_Initialization (Flag13-Sem)
       --  Is_Static_Coextension (Flag14-Sem)
       --  Do_Storage_Check (Flag17-Sem)
-      --  Is_Coextension (Flag18-Sem)
+      --  Is_Dynamic_Coextension (Flag18-Sem)
       --  plus fields for expression
 
       ---------------------------------
@@ -4347,7 +4347,9 @@ package Sinfo is
 
       --  RETURN_SUBTYPE_INDICATION ::= SUBTYPE_INDICATION | ACCESS_DEFINITION
 
-      --  So in Ada 2005, RETURN_STATEMENT is no longer a nonterminal
+      --  So in Ada 2005, RETURN_STATEMENT is no longer a nonterminal, but
+      --  "return statement" is defined in 6.5 to mean a
+      --  SIMPLE_RETURN_STATEMENT or an EXTENDED_RETURN_STATEMENT.
 
       --  N_Return_Statement
       --  Sloc points to RETURN
@@ -4359,8 +4361,11 @@ package Sinfo is
       --  By_Ref (Flag5-Sem)
       --  Comes_From_Extended_Return_Statement (Flag18-Sem)
 
-      --  ???N_Return_Statement represents a simple_return_statement,
-      --  and should be renamed to N_Simple_Return_Statement.
+      --  N_Return_Statement represents a simple_return_statement, and is
+      --  renamed to be N_Simple_Return_Statement below. Clients should refer
+      --  to N_Simple_Return_Statement. We retain N_Return_Statement because
+      --  that's how gigi knows it. See also renaming of Make_Return_Statement
+      --  as Make_Simple_Return_Statement in Sem_Util.
 
       --  Note: Return_Statement_Entity points to an E_Return_Statement
 
@@ -4391,7 +4396,7 @@ package Sinfo is
       --  the Return_Statement_Entity represents the statement itself, and the
       --  Defining_Identifier of the Object_Declaration in
       --  Return_Object_Declarations represents the object being
-      --  returned. N_Return_Statement has only the former.
+      --  returned. N_Simple_Return_Statement has only the former.
 
       ------------------------------
       -- 7.1  Package Declaration --
@@ -7091,7 +7096,7 @@ package Sinfo is
       N_Null_Statement,
       N_Raise_Statement,
       N_Requeue_Statement,
-      N_Return_Statement,
+      N_Return_Statement, -- renamed as N_Simple_Return_Statement in Sem_Util
       N_Extended_Return_Statement,
       N_Selective_Accept,
       N_Timed_Entry_Call,
@@ -7850,9 +7855,6 @@ package Sinfo is
    function Is_Asynchronous_Call_Block
      (N : Node_Id) return Boolean;    -- Flag7
 
-   function Is_Coextension
-     (N : Node_Id) return Boolean;    -- Flag18
-
    function Is_Component_Left_Opnd
      (N : Node_Id) return Boolean;    -- Flag13
 
@@ -7862,6 +7864,9 @@ package Sinfo is
    function Is_Controlling_Actual
      (N : Node_Id) return Boolean;    -- Flag16
 
+   function Is_Dynamic_Coextension
+     (N : Node_Id) return Boolean;    -- Flag18
+
    function Is_Entry_Barrier_Function
      (N : Node_Id) return Boolean;    -- Flag8
 
@@ -8705,9 +8710,6 @@ package Sinfo is
    procedure Set_Is_Asynchronous_Call_Block
      (N : Node_Id; Val : Boolean := True);    -- Flag7
 
-   procedure Set_Is_Coextension
-     (N : Node_Id; Val : Boolean := True);    -- Flag18
-
    procedure Set_Is_Component_Left_Opnd
      (N : Node_Id; Val : Boolean := True);    -- Flag13
 
@@ -8717,6 +8719,9 @@ package Sinfo is
    procedure Set_Is_Controlling_Actual
      (N : Node_Id; Val : Boolean := True);    -- Flag16
 
+   procedure Set_Is_Dynamic_Coextension
+     (N : Node_Id; Val : Boolean := True);    -- Flag18
+
    procedure Set_Is_Entry_Barrier_Function
      (N : Node_Id; Val : Boolean := True);    -- Flag8
 
@@ -10807,10 +10812,10 @@ package Sinfo is
    pragma Inline (Instance_Spec);
    pragma Inline (Intval);
    pragma Inline (Is_Asynchronous_Call_Block);
-   pragma Inline (Is_Coextension);
    pragma Inline (Is_Component_Left_Opnd);
    pragma Inline (Is_Component_Right_Opnd);
    pragma Inline (Is_Controlling_Actual);
+   pragma Inline (Is_Dynamic_Coextension);
    pragma Inline (Is_Entry_Barrier_Function);
    pragma Inline (Is_In_Discriminant_Check);
    pragma Inline (Is_Machine_Number);
@@ -11088,10 +11093,10 @@ package Sinfo is
    pragma Inline (Set_Instance_Spec);
    pragma Inline (Set_Intval);
    pragma Inline (Set_Is_Asynchronous_Call_Block);
-   pragma Inline (Set_Is_Coextension);
    pragma Inline (Set_Is_Component_Left_Opnd);
    pragma Inline (Set_Is_Component_Right_Opnd);
    pragma Inline (Set_Is_Controlling_Actual);
+   pragma Inline (Set_Is_Dynamic_Coextension);
    pragma Inline (Set_Is_Entry_Barrier_Function);
    pragma Inline (Set_Is_In_Discriminant_Check);
    pragma Inline (Set_Is_Machine_Number);
@@ -11213,4 +11218,8 @@ package Sinfo is
    pragma Inline (Set_Was_Originally_Stub);
    pragma Inline (Set_Zero_Cost_Handling);
 
+   N_Simple_Return_Statement : constant Node_Kind := N_Return_Statement;
+   --  Rename N_Return_Statement to be N_Simple_Return_Statement. Clients
+   --  should refer to N_Simple_Return_Statement.
+
 end Sinfo;
diff --git a/gcc/ada/system-darwin-x86.ads b/gcc/ada/system-darwin-x86.ads
new file mode 100644
index 0000000..a6f6cf1
--- /dev/null
+++ b/gcc/ada/system-darwin-x86.ads
@@ -0,0 +1,171 @@
+------------------------------------------------------------------------------
+--                                                                          --
+--                        GNAT RUN-TIME COMPONENTS                          --
+--                                                                          --
+--                               S Y S T E M                                --
+--                                                                          --
+--                                 S p e c                                  --
+--                          (Darwin/x86 Version)                            --
+--                                                                          --
+--          Copyright (C) 1992-2007, Free Software Foundation, Inc.         --
+--                                                                          --
+-- This specification is derived from the Ada Reference Manual for use with --
+-- GNAT. The copyright notice above, and the license provisions that follow --
+-- apply solely to the  contents of the part following the private keyword. --
+--                                                                          --
+-- GNAT is free software;  you can  redistribute it  and/or modify it under --
+-- terms of the  GNU General Public License as published  by the Free Soft- --
+-- ware  Foundation;  either version 2,  or (at your option) any later ver- --
+-- sion.  GNAT is distributed in the hope that it will be useful, but WITH- --
+-- OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY --
+-- or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License --
+-- for  more details.  You should have  received  a copy of the GNU General --
+-- Public License  distributed with GNAT;  see file COPYING.  If not, write --
+-- to  the  Free Software Foundation,  51  Franklin  Street,  Fifth  Floor, --
+-- Boston, MA 02110-1301, USA.                                              --
+--                                                                          --
+-- As a special exception,  if other files  instantiate  generics from this --
+-- unit, or you link  this unit with other files  to produce an executable, --
+-- this  unit  does not  by itself cause  the resulting  executable  to  be --
+-- covered  by the  GNU  General  Public  License.  This exception does not --
+-- however invalidate  any other reasons why  the executable file  might be --
+-- covered by the  GNU Public License.                                      --
+--                                                                          --
+-- GNAT was originally developed  by the GNAT team at  New York University. --
+-- Extensive contributions were provided by Ada Core Technologies Inc.      --
+--                                                                          --
+------------------------------------------------------------------------------
+
+package System is
+   pragma Pure;
+   --  Note that we take advantage of the implementation permission to make
+   --  this unit Pure instead of Preelaborable; see RM 13.7.1(15). In Ada
+   --  2005, this is Pure in any case (AI-362).
+
+   type Name is (SYSTEM_NAME_GNAT);
+   System_Name : constant Name := SYSTEM_NAME_GNAT;
+
+   --  System-Dependent Named Numbers
+
+   Min_Int               : constant := Long_Long_Integer'First;
+   Max_Int               : constant := Long_Long_Integer'Last;
+
+   Max_Binary_Modulus    : constant := 2 ** Long_Long_Integer'Size;
+   Max_Nonbinary_Modulus : constant := Integer'Last;
+
+   Max_Base_Digits       : constant := Long_Long_Float'Digits;
+   Max_Digits            : constant := Long_Long_Float'Digits;
+
+   Max_Mantissa          : constant := 63;
+   Fine_Delta            : constant := 2.0 ** (-Max_Mantissa);
+
+   Tick                  : constant := 0.01;
+
+   --  Storage-related Declarations
+
+   type Address is private;
+   pragma Preelaborable_Initialization (Address);
+   Null_Address : constant Address;
+
+   Storage_Unit : constant := 8;
+   Word_Size    : constant := 32;
+   Memory_Size  : constant := 2 ** 32;
+
+   --  Address comparison
+
+   function "<"  (Left, Right : Address) return Boolean;
+   function "<=" (Left, Right : Address) return Boolean;
+   function ">"  (Left, Right : Address) return Boolean;
+   function ">=" (Left, Right : Address) return Boolean;
+   function "="  (Left, Right : Address) return Boolean;
+
+   pragma Import (Intrinsic, "<");
+   pragma Import (Intrinsic, "<=");
+   pragma Import (Intrinsic, ">");
+   pragma Import (Intrinsic, ">=");
+   pragma Import (Intrinsic, "=");
+
+   --  Other System-Dependent Declarations
+
+   type Bit_Order is (High_Order_First, Low_Order_First);
+   Default_Bit_Order : constant Bit_Order := Low_Order_First;
+   pragma Warnings (Off, Default_Bit_Order); -- kill constant condition warning
+
+   --  Priority-related Declarations (RM D.1)
+
+   --  The values defined here are derived from the following Darwin
+   --  sources:
+   --
+   --  Libc/pthreads/pthread.c
+   --    pthread_init calls host_info to retrieve the HOST_PRIORITY_INFO.
+   --    This file includes "pthread_internals".
+   --  Libc/pthreads/pthread_internals.h
+   --    This file includes <mach/mach.h>.
+   --  xnu/osfmk/mach/mach.h
+   --    This file includes <mach/mach_types.h>.
+   --  xnu/osfmk/mach/mach_types.h
+   --    This file includes <mach/host_info.h>.
+   --  xnu/osfmk/mach/host_info.h
+   --    This file contains the definition of the host_info_t data structure
+   --    and the function prototype for host_info.
+   --  xnu/osfmk/kern/host.c
+   --    This file defines the function host_info which sets the
+   --    priority_info field of struct host_info_t. This file includes
+   --    <kern/processor.h>.
+   --  xnu/osfmk/kern/processor.h
+   --    This file includes <kern/sched.h>.
+   --  xnu/osfmk/kern/sched.h
+   --    This file defines the values for each level of priority.
+
+   Max_Interrupt_Priority : constant Positive := 63;
+   Max_Priority           : constant Positive := Max_Interrupt_Priority - 1;
+
+   subtype Any_Priority is Integer range 0 .. Max_Interrupt_Priority;
+   subtype Priority is Any_Priority range 0 .. Max_Priority;
+   subtype Interrupt_Priority is Any_Priority
+     range Priority'Last + 1 .. Max_Interrupt_Priority;
+
+   Default_Priority : constant Priority :=
+     (Priority'Last - Priority'First) / 2;
+
+private
+
+   type Address is mod Memory_Size;
+   Null_Address : constant Address := 0;
+
+   --------------------------------------
+   -- System Implementation Parameters --
+   --------------------------------------
+
+   --  These parameters provide information about the target that is used
+   --  by the compiler. They are in the private part of System, where they
+   --  can be accessed using the special circuitry in the Targparm unit
+   --  whose source should be consulted for more detailed descriptions
+   --  of the individual switch values.
+
+   Backend_Divide_Checks     : constant Boolean := False;
+   Backend_Overflow_Checks   : constant Boolean := False;
+   Command_Line_Args         : constant Boolean := True;
+   Configurable_Run_Time     : constant Boolean := False;
+   Denorm                    : constant Boolean := True;
+   Duration_32_Bits          : constant Boolean := False;
+   Exit_Status_Supported     : constant Boolean := True;
+   Fractional_Fixed_Ops      : constant Boolean := False;
+   Frontend_Layout           : constant Boolean := False;
+   Machine_Overflows         : constant Boolean := False;
+   Machine_Rounds            : constant Boolean := True;
+   Preallocated_Stacks       : constant Boolean := False;
+   Signed_Zeros              : constant Boolean := True;
+   Stack_Check_Default       : constant Boolean := False;
+   Stack_Check_Probes        : constant Boolean := False;
+   Support_64_Bit_Divides    : constant Boolean := True;
+   Support_Aggregates        : constant Boolean := True;
+   Support_Composite_Assign  : constant Boolean := True;
+   Support_Composite_Compare : constant Boolean := True;
+   Support_Long_Shifts       : constant Boolean := True;
+   Suppress_Standard_Library : constant Boolean := False;
+   Use_Ada_Main_Program_Name : constant Boolean := False;
+   ZCX_By_Default            : constant Boolean := True;
+   GCC_ZCX_Support           : constant Boolean := True;
+
+end System;