configure.ac (gcc_cv_lto_plugin): Fix typo.

	* configure.ac (gcc_cv_lto_plugin): Fix typo.
	Allow -fuse-linker-plugin for non-default plugin linker.
	* configure: Regenerate.

From-SVN: r171215

gcc/ChangeLog

+2011-03-21  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
+
+	* configure.ac (gcc_cv_lto_plugin): Fix typo.
+	Allow -fuse-linker-plugin for non-default plugin linker.
+	* configure: Regenerate.
+
 2011-03-21  Nicola Pero  <nicola.pero@meta-innovation.com>
 
 	PR bootstrap/48167

gcc/configure

@@ -23134,14 +23134,14 @@ fi
 $as_echo_n "checking linker plugin support... " >&6; }
 gcc_cv_lto_plugin=0
 if test -f liblto_plugin.la; then
-  if test $in_tree_ld = yes -a x"$ORIGINAL_PLUGIN_LD_FOR_TARGET=" = x"$gcc_cv_ld"; then
+  if test $in_tree_ld = yes -a x"$ORIGINAL_PLUGIN_LD_FOR_TARGET" = x"$gcc_cv_ld"; then
     if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 21 -o "$gcc_cv_gld_major_version" -gt 2; then
       gcc_cv_lto_plugin=2
     elif test "$ld_is_gold" = yes -a "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -eq 20; then
       gcc_cv_lto_plugin=1
 
     fi
-  elif echo "$ld_ver" | grep GNU > /dev/null; then
+  elif test x"$ORIGINAL_PLUGIN_LD_FOR_TARGET" = x"$gcc_cv_ld" && echo "$ld_ver" | grep GNU > /dev/null; then
     # Require GNU ld or gold 2.21+ for plugin support by default.
     if test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -ge 21; then
       gcc_cv_lto_plugin=2
@@ -23149,6 +23149,10 @@ if test -f liblto_plugin.la; then
     elif test "$ld_is_gold" = yes -a "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 20; then
       gcc_cv_lto_plugin=1
     fi
+  elif test x"$ORIGINAL_PLUGIN_LD_FOR_TARGET" != x"$gcc_cv_ld"; then
+    # Allow -fuse-linker-plugin if plugin linker differs from
+    # default/specified linker.
+    gcc_cv_lto_plugin=1
   fi
 fi
 

gcc/configure.ac

@@ -3192,14 +3192,14 @@ fi
 AC_MSG_CHECKING(linker plugin support)
 gcc_cv_lto_plugin=0
 if test -f liblto_plugin.la; then
-  if test $in_tree_ld = yes -a x"$ORIGINAL_PLUGIN_LD_FOR_TARGET=" = x"$gcc_cv_ld"; then
+  if test $in_tree_ld = yes -a x"$ORIGINAL_PLUGIN_LD_FOR_TARGET" = x"$gcc_cv_ld"; then
     if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 21 -o "$gcc_cv_gld_major_version" -gt 2; then
       gcc_cv_lto_plugin=2
     elif test "$ld_is_gold" = yes -a "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -eq 20; then
       gcc_cv_lto_plugin=1
 
     fi
-  elif echo "$ld_ver" | grep GNU > /dev/null; then
+  elif test x"$ORIGINAL_PLUGIN_LD_FOR_TARGET" = x"$gcc_cv_ld" && echo "$ld_ver" | grep GNU > /dev/null; then
     # Require GNU ld or gold 2.21+ for plugin support by default.
     if test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -ge 21; then
       gcc_cv_lto_plugin=2
@@ -3207,6 +3207,10 @@ if test -f liblto_plugin.la; then
     elif test "$ld_is_gold" = yes -a "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 20; then
       gcc_cv_lto_plugin=1
     fi
+  elif test x"$ORIGINAL_PLUGIN_LD_FOR_TARGET" != x"$gcc_cv_ld"; then
+    # Allow -fuse-linker-plugin if plugin linker differs from
+    # default/specified linker.
+    gcc_cv_lto_plugin=1
   fi
 fi
 AC_DEFINE_UNQUOTED(HAVE_LTO_PLUGIN, $gcc_cv_lto_plugin,