Support for building as a shared library, based on patches from

	Alan Modra <alan@spri.levels.unisa.edu.au>:
	* configure.in: Add AC_ARG_ENABLE for shared and commonbfdlib.
	New substitutions: ALLLIBS, PICFLAG, SHLIB, SHLIB_CC,
	SHLIB_CFLAGS, COMMON_SHLIB, PICLIST, SHLINK.
	* configure: Rebuild.
	* configure.host: If --enable-shared, adjust shared library stuff
	based on the host.  If the host is SunOS, and the linker supports
	-rpath, set HLDFLAGS to use it.
	* Makefile.in (ALLLIBS): New variable.
	(PICFLAG, SHLIB, SHLIB_CC, SHLIB_CFLAGS): New variables.
	(COMMON_SHLIB, SHLINK): New variables.
	(.c.o): If PICFLAG is set, compile twice, once PIC, once normal.
	(STAGESTUFF): Remove variable.
	(all): Depend upon $(ALLLIBS) and @PICLIST@ rather than
	$(TARGETLIB).
	(stamp-ofiles): New target, like old ofiles target, but build
	using a temporary file and move-if-change, and touch stamp-ofiles
	when done.
	(ofiles): Just depend upon stamp-ofiles.
	(stamp-piclist, piclist): New targets.
	($(SHLIB), $(SHLINK)): New targets.
	(targets.o, archures.o): Build twice if PICFLAG is set.
	(do_mostlyclean): Remove pic/*.o.
	(do_clean): Remove stamp-ofiles, $(SHLIB), $(SHLINK), piclist, and
	stamp-piclist.
	(do_distclean): Remove pic and stamp-picdir.
	(install): Install shared libraries.
	($(OFILES)): Depend upon stamp-picdir.
	(stamp-picdir): New target.

1 files changed, 75 insertions, 34 deletions

diff --git a/bfd/configure.in b/bfd/configure.in
index 8b18868..f18017b 100644
--- a/bfd/configure.in
+++ b/bfd/configure.in
@@ -18,6 +18,27 @@ AC_ARG_ENABLE(targets,
   no)       enable_targets= ;;
   *)        enable_targets=$enableval ;;
 esac])dnl
+AC_ARG_ENABLE(shared,
+[  --enable-shared         build shared BFD library],
+[case "${enableval}" in
+  yes) shared=true ;;
+  no)  shared=false ;;
+  *)   AC_MSG_ERROR([bad value ${enableval} for BFD shared option]) ;;
+esac])dnl
+AC_ARG_ENABLE(commonbfdlib,
+[  --enable-commonbfdlib   build shared BFD/opcodes/libiberty library],
+[case "${enableval}" in
+  yes) commonbfdlib=true ;;
+  no)  commonbfdlib=false ;;
+  *)   AC_MSG_ERROR([bad value ${enableval} for BFD commonbfdlib option]) ;;
+esac])dnl
+AC_ARG_WITH(mmap,
+[  --with-mmap             try using mmap for BFD input files if available],
+[case "${withval}" in
+  yes)  want_mmap=true ;;
+  no)   want_mmap=false ;;
+  *)    AC_MSG_ERROR(bad value ${withval} for BFD with-mmap option) ;;
+esac],[want_mmap=false])dnl
 
 AC_CONFIG_HEADER(config.h:config.in)
 
@@ -33,6 +54,23 @@ target64=false
 
 # host stuff:
 
+ALLLIBS='$(TARGETLIB)'
+PICFLAG=
+SHLIB=
+SHLINK=
+if test "${shared}" = "true"; then
+  PICFLAG=-fpic
+  if test "${commonbfdlib}" = "true"; then
+    ALLLIBS='$(TARGETLIB)'
+  else
+    ALLLIBS='$(TARGETLIB) $(SHLIB) $(SHLINK)'
+changequote(,)dnl
+    SHLIB=libbfd.so.`sed -e 's/[^0-9]*\([0-9.]*\).*/\1/' ${srcdir}/VERSION`
+changequote([,])dnl
+    SHLINK=libbfd.so
+  fi
+fi
+
 # Permit host specific settings.
 . ${srcdir}/configure.host
 
@@ -43,6 +81,31 @@ AC_CHECK_PROG(AR, ar, ar, :)
 AC_PROG_RANLIB
 AC_PROG_INSTALL
 
+if test "${shared}" = "true"; then
+  if test "${GCC}" != "yes" && test "${shared_non_gcc}" != "yes"; then
+    AC_MSG_WARN([BFD --enable-shared only supported when using gcc])
+    shared=false
+    PICFLAG=
+    SHLIB=
+  fi
+fi
+
+AC_SUBST(ALLLIBS)
+AC_SUBST(PICFLAG)
+AC_SUBST(SHLIB)
+AC_SUBST(SHLIB_CC)
+AC_SUBST(SHLIB_CFLAGS)
+if test "${commonbfdlib}" = "true"; then
+  COMMON_SHLIB=yes
+  PICLIST=piclist
+else
+  COMMON_SHLIB=
+  PICLIST=
+fi
+AC_SUBST(COMMON_SHLIB)
+AC_SUBST(PICLIST)
+AC_SUBST(SHLINK)
+
 HOST_64BIT_LONG=0
 if test "x${HOST_64BIT_TYPE}" = "xlong"; then
   HOST_64BIT_LONG=1
@@ -57,39 +120,8 @@ AC_CHECK_FUNCS(fcntl getpagesize)
 
 BFD_BINARY_FOPEN
 
-AC_MSG_CHECKING([whether malloc must be declared])
-AC_CACHE_VAL(bfd_cv_decl_needed_malloc,
-[AC_TRY_COMPILE([
-#include <stdio.h>
-#ifdef HAVE_STDLIB_H
-#include <stdlib.h>
-#endif
-#ifdef HAVE_UNISTD_H
-#include <unistd.h>
-#endif],
-[char *(*pfn) = (char *(*)) malloc],
-bfd_cv_decl_needed_malloc=no, bfd_cv_decl_needed_malloc=yes)])
-AC_MSG_RESULT($bfd_cv_decl_needed_malloc)
-if test $bfd_cv_decl_needed_malloc = yes; then
-  AC_DEFINE(NEED_DECLARATION_MALLOC)
-fi
-
-AC_MSG_CHECKING([whether free must be declared])
-AC_CACHE_VAL(bfd_cv_decl_needed_free,
-[AC_TRY_COMPILE([
-#include <stdio.h>
-#ifdef HAVE_STDLIB_H
-#include <stdlib.h>
-#endif
-#ifdef HAVE_UNISTD_H
-#include <unistd.h>
-#endif],
-[int (*pfn) = (int (*)) free],
-bfd_cv_decl_needed_free=no, bfd_cv_decl_needed_free=yes)])
-AC_MSG_RESULT($bfd_cv_decl_needed_free)
-if test $bfd_cv_decl_needed_free = yes; then
-  AC_DEFINE(NEED_DECLARATION_FREE)
-fi
+BFD_NEED_DECLARATION(malloc)
+BFD_NEED_DECLARATION(free)
 
 # If we are configured native, pick a core file support file.
 COREFILE=
@@ -215,6 +247,10 @@ changequote([,])dnl
 	COREFILE=trad-core.o
 	AC_DEFINE(TRAD_HEADER,"hosts/m68knbsd.h")
 	;;
+  m68*-apple-aux*)
+	COREFILE=trad-core.o
+	AC_DEFINE(TRAD_HEADER,"hosts/m68kaux.h")
+	;;
   m88*-*-sysv4*)	;;
   m88*-motorola-sysv*)	COREFILE=ptrace-core.o ;;
   m88*-*-mach3*)
@@ -411,8 +447,9 @@ do
     hp300hpux_vec)		tb="$tb hp300hpux.o aout32.o stab-syms.o" ;;
     i386aout_vec)		tb="$tb i386aout.o aout32.o stab-syms.o" ;;
     i386bsd_vec)		tb="$tb i386bsd.o aout32.o stab-syms.o" ;;
-    i386dynix_vec)		tb="$tb i386dynix.o aout32.o stab-syms.o" ;;
     i386coff_vec)		tb="$tb coff-i386.o cofflink.o" ;;
+    i386dynix_vec)		tb="$tb i386dynix.o aout32.o stab-syms.o" ;;
+    i386freebsd_vec)		tb="$tb i386freebsd.o aout32.o stab-syms.o" ;;
     i386msdos_vec)		tb="$tb i386msdos.o" ;;
     i386pe_vec)			tb="$tb pe-i386.o cofflink.o " ;;
     i386pei_vec)		tb="$tb pei-i386.o cofflink.o" ;;
@@ -432,6 +469,7 @@ do
     m68klynx_coff_vec)		tb="$tb cf-m68klynx.o coff-m68k.o cofflink.o lynx-core.o stab-syms.o" ;;
     m68knetbsd_vec)		tb="$tb m68knetbsd.o aout32.o stab-syms.o" ;;
     m68k4knetbsd_vec)		tb="$tb m68k4knetbsd.o aout32.o stab-syms.o" ;;
+    m68kaux_coff_vec)		tb="$tb coff-aux.o coff-m68k.o cofflink.o" ;;
     m88kbcs_vec)		tb="$tb coff-m88k.o" ;;
     newsos3_vec)		tb="$tb newsos3.o aout32.o stab-syms.o" ;;
     nlm32_i386_vec)		tb="$tb nlm32-i386.o nlm32.o nlm.o" ;;
@@ -535,6 +573,9 @@ AC_SUBST(tdefaults)
 dnl AC_CHECK_HEADERS(sys/mman.h)
 AC_FUNC_MMAP
 AC_CHECK_FUNCS(madvise mprotect)
+case ${want_mmap}+${ac_cv_func_mmap} in
+  true+yes )  AC_DEFINE(USE_MMAP) ;;
+esac
 
 rm -f doc/config.status
 AC_OUTPUT(Makefile doc/Makefile,