Automatic date update in version.in

[deliverable/binutils-gdb.git] / libtool.m4

diff --git a/libtool.m4 b/libtool.m4
index 434530059fada7fe109893fee2f2cddb11a2698d..9a13f3b117aa8446a6926c1677f515b8ef0d7a38 100644 (file)
--- a/libtool.m4
+++ b/libtool.m4
@@ -1323,8 +1323,33 @@ 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
+    touch conftest.c
+    $AR $plugin_option rc conftest.a conftest.c
+    if test "$?" != 0; then
+      AC_MSG_WARN([Failed: $AR $plugin_option rc])
+    else
+      AR="$AR $plugin_option"
+    fi
+    rm -f conftest.*
+  fi
+fi
 test -z "$AR_FLAGS" && AR_FLAGS=cru
 _LT_DECL([], [AR], [1], [The archiver])
 _LT_DECL([], [AR_FLAGS], [1])
@@ -1335,6 +1360,11 @@ _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])
 
@@ -2323,16 +2353,6 @@ freebsd* | dragonfly*)
   esac
   ;;
 
-gnu*)
-  version_type=linux
-  need_lib_prefix=no
-  need_version=no
-  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}${major} ${libname}${shared_ext}'
-  soname_spec='${libname}${release}${shared_ext}$major'
-  shlibpath_var=LD_LIBRARY_PATH
-  hardcode_into_libs=yes
-  ;;
-
 haiku*)
   version_type=linux
   need_lib_prefix=no
@@ -2449,7 +2469,7 @@ linux*oldld* | linux*aout* | linux*coff*)
   ;;
 
 # This must be Linux ELF.
-linux* | k*bsd*-gnu | kopensolaris*-gnu)
+linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*)
   version_type=linux
   need_lib_prefix=no
   need_version=no