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authorH.J. Lu <hjl.tools@gmail.com>2021-01-09 06:43:11 -0800
committerH.J. Lu <hjl.tools@gmail.com>2021-01-09 06:51:51 -0800
commit50ad1254d5030d0804cbf89c758359ae202e8d55 (patch)
treed99205ba73874f43469734356f4f2d71ff8e428b /libtool.m4
parenta9fd212a2416406f8503efe9e449718d0becfcb2 (diff)
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GCC: Pass --plugin to AR and RANLIB
Detect GCC LTO plugin. Pass --plugin to AR and RANLIB to support LTO build. * Makefile.tpl (AR): Add @AR_PLUGIN_OPTION@ (RANLIB): Add @RANLIB_PLUGIN_OPTION@. * configure.ac: Include config/gcc-plugin.m4. AC_SUBST AR_PLUGIN_OPTION and RANLIB_PLUGIN_OPTION. * libtool.m4 (_LT_CMD_OLD_ARCHIVE): Pass --plugin to AR and RANLIB if possible. * Makefile.in: Regenerated. * configure: Likewise. config/ * gcc-plugin.m4 (GCC_PLUGIN_OPTION): New. libiberty/ * Makefile.in (AR): Add @AR_PLUGIN_OPTION@ (RANLIB): Add @RANLIB_PLUGIN_OPTION@. (configure_deps): Depend on ../config/gcc-plugin.m4. * aclocal.m4: Include ../config/gcc-plugin.m4. * configure.ac: AC_SUBST AR_PLUGIN_OPTION and RANLIB_PLUGIN_OPTION. * configure: Regenerated. zlib/ * configure: Regenerated.
Diffstat (limited to 'libtool.m4')
-rw-r--r--libtool.m425
1 files changed, 24 insertions, 1 deletions
diff --git a/libtool.m4 b/libtool.m4
index e993b62..3672e95 100644
--- a/libtool.m4
+++ b/libtool.m4
@@ -1323,8 +1323,26 @@ need_locks="$enable_libtool_lock"
# _LT_CMD_OLD_ARCHIVE
# -------------------
m4_defun([_LT_CMD_OLD_ARCHIVE],
-[AC_CHECK_TOOL(AR, ar, false)
+[plugin_option=
+plugin_names="liblto_plugin.so liblto_plugin-0.dll cyglto_plugin-0.dll"
+for plugin in $plugin_names; do
+ plugin_so=`${CC} ${CFLAGS} --print-prog-name $plugin`
+ if test x$plugin_so = x$plugin; then
+ plugin_so=`${CC} ${CFLAGS} --print-file-name $plugin`
+ fi
+ if test x$plugin_so != x$plugin; then
+ plugin_option="--plugin $plugin_so"
+ break
+ fi
+done
+
+AC_CHECK_TOOL(AR, ar, false)
test -z "$AR" && AR=ar
+if test -n "$plugin_option"; then
+ if $AR --help 2>&1 | grep -q "\--plugin"; then
+ AR="$AR $plugin_option"
+ fi
+fi
test -z "$AR_FLAGS" && AR_FLAGS=cru
_LT_DECL([], [AR], [1], [The archiver])
_LT_DECL([], [AR_FLAGS], [1])
@@ -1335,6 +1353,11 @@ _LT_DECL([], [STRIP], [1], [A symbol stripping program])
AC_CHECK_TOOL(RANLIB, ranlib, :)
test -z "$RANLIB" && RANLIB=:
+if test -n "$plugin_option" && test "$RANLIB" != ":"; then
+ if $RANLIB --help 2>&1 | grep -q "\--plugin"; then
+ RANLIB="$RANLIB $plugin_option"
+ fi
+fi
_LT_DECL([], [RANLIB], [1],
[Commands used to install an old-style archive])