Add mold detection for libs.

libatomic/ChangeLog:

	* acinclude.m4: Detect *_ld_is_mold and use it.
	* configure: Regenerate.

libgomp/ChangeLog:

	* acinclude.m4: Detect *_ld_is_mold and use it.
	* configure: Regenerate.

libitm/ChangeLog:

	* acinclude.m4: Detect *_ld_is_mold and use it.
	* configure: Regenerate.

libstdc++-v3/ChangeLog:

	* acinclude.m4: Detect *_ld_is_mold and use it.
	* configure: Regenerate.

1 files changed, 42 insertions, 10 deletions

diff --git a/libstdc++-v3/configure b/libstdc++-v3/configure
index 2b2f85782b1..de6eb1c6002 100755
--- a/libstdc++-v3/configure
+++ b/libstdc++-v3/configure
@@ -22157,12 +22157,15 @@ with_gnu_ld=$lt_cv_prog_gnu_ld
   # Start by getting the version number.  I think the libtool test already
   # does some of this, but throws away the result.
   glibcxx_ld_is_gold=no
+  glibcxx_ld_is_mold=no
   if test x"$with_gnu_ld" = x"yes"; then
     { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ld version" >&5
 $as_echo_n "checking for ld version... " >&6; }
 
     if $LD --version 2>/dev/null | grep 'GNU gold' >/dev/null 2>&1; then
       glibcxx_ld_is_gold=yes
+    elif $LD --version 2>/dev/null | grep 'mold' >/dev/null 2>&1; then
+      glibcxx_ld_is_mold=yes
     fi
     ldver=`$LD --version 2>/dev/null |
 	   sed -e 's/[. ][0-9]\{8\}$//;s/.* \([^ ]\{1,\}\)$/\1/; q'`
@@ -22175,7 +22178,7 @@ $as_echo "$glibcxx_gnu_ld_version" >&6; }
 
   # Set --gc-sections.
   glibcxx_have_gc_sections=no
-  if test "$glibcxx_ld_is_gold" = "yes"; then
+  if test "$glibcxx_ld_is_gold" = "yes" || test "$glibcxx_ld_is_mold" = "yes" ; then
     if $LD --help 2>/dev/null | grep gc-sections >/dev/null 2>&1; then
       glibcxx_have_gc_sections=yes
     fi
@@ -29371,12 +29374,15 @@ ac_compiler_gnu=$ac_cv_c_compiler_gnu
   # Start by getting the version number.  I think the libtool test already
   # does some of this, but throws away the result.
   glibcxx_ld_is_gold=no
+  glibcxx_ld_is_mold=no
   if test x"$with_gnu_ld" = x"yes"; then
     { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ld version" >&5
 $as_echo_n "checking for ld version... " >&6; }
 
     if $LD --version 2>/dev/null | grep 'GNU gold' >/dev/null 2>&1; then
       glibcxx_ld_is_gold=yes
+    elif $LD --version 2>/dev/null | grep 'mold' >/dev/null 2>&1; then
+      glibcxx_ld_is_mold=yes
     fi
     ldver=`$LD --version 2>/dev/null |
 	   sed -e 's/[. ][0-9]\{8\}$//;s/.* \([^ ]\{1,\}\)$/\1/; q'`
@@ -29389,7 +29395,7 @@ $as_echo "$glibcxx_gnu_ld_version" >&6; }
 
   # Set --gc-sections.
   glibcxx_have_gc_sections=no
-  if test "$glibcxx_ld_is_gold" = "yes"; then
+  if test "$glibcxx_ld_is_gold" = "yes" || test "$glibcxx_ld_is_mold" = "yes" ; then
     if $LD --help 2>/dev/null | grep gc-sections >/dev/null 2>&1; then
       glibcxx_have_gc_sections=yes
     fi
@@ -35303,12 +35309,15 @@ done
   # Start by getting the version number.  I think the libtool test already
   # does some of this, but throws away the result.
   glibcxx_ld_is_gold=no
+  glibcxx_ld_is_mold=no
   if test x"$with_gnu_ld" = x"yes"; then
     { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ld version" >&5
 $as_echo_n "checking for ld version... " >&6; }
 
     if $LD --version 2>/dev/null | grep 'GNU gold' >/dev/null 2>&1; then
       glibcxx_ld_is_gold=yes
+    elif $LD --version 2>/dev/null | grep 'mold' >/dev/null 2>&1; then
+      glibcxx_ld_is_mold=yes
     fi
     ldver=`$LD --version 2>/dev/null |
 	   sed -e 's/[. ][0-9]\{8\}$//;s/.* \([^ ]\{1,\}\)$/\1/; q'`
@@ -35321,7 +35330,7 @@ $as_echo "$glibcxx_gnu_ld_version" >&6; }
 
   # Set --gc-sections.
   glibcxx_have_gc_sections=no
-  if test "$glibcxx_ld_is_gold" = "yes"; then
+  if test "$glibcxx_ld_is_gold" = "yes" || test "$glibcxx_ld_is_mold" = "yes" ; then
     if $LD --help 2>/dev/null | grep gc-sections >/dev/null 2>&1; then
       glibcxx_have_gc_sections=yes
     fi
@@ -47234,12 +47243,15 @@ done
   # Start by getting the version number.  I think the libtool test already
   # does some of this, but throws away the result.
   glibcxx_ld_is_gold=no
+  glibcxx_ld_is_mold=no
   if test x"$with_gnu_ld" = x"yes"; then
     { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ld version" >&5
 $as_echo_n "checking for ld version... " >&6; }
 
     if $LD --version 2>/dev/null | grep 'GNU gold' >/dev/null 2>&1; then
       glibcxx_ld_is_gold=yes
+    elif $LD --version 2>/dev/null | grep 'mold' >/dev/null 2>&1; then
+      glibcxx_ld_is_mold=yes
     fi
     ldver=`$LD --version 2>/dev/null |
 	   sed -e 's/[. ][0-9]\{8\}$//;s/.* \([^ ]\{1,\}\)$/\1/; q'`
@@ -47252,7 +47264,7 @@ $as_echo "$glibcxx_gnu_ld_version" >&6; }
 
   # Set --gc-sections.
   glibcxx_have_gc_sections=no
-  if test "$glibcxx_ld_is_gold" = "yes"; then
+  if test "$glibcxx_ld_is_gold" = "yes" || test "$glibcxx_ld_is_mold" = "yes" ; then
     if $LD --help 2>/dev/null | grep gc-sections >/dev/null 2>&1; then
       glibcxx_have_gc_sections=yes
     fi
@@ -47519,12 +47531,15 @@ done
   # Start by getting the version number.  I think the libtool test already
   # does some of this, but throws away the result.
   glibcxx_ld_is_gold=no
+  glibcxx_ld_is_mold=no
   if test x"$with_gnu_ld" = x"yes"; then
     { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ld version" >&5
 $as_echo_n "checking for ld version... " >&6; }
 
     if $LD --version 2>/dev/null | grep 'GNU gold' >/dev/null 2>&1; then
       glibcxx_ld_is_gold=yes
+    elif $LD --version 2>/dev/null | grep 'mold' >/dev/null 2>&1; then
+      glibcxx_ld_is_mold=yes
     fi
     ldver=`$LD --version 2>/dev/null |
 	   sed -e 's/[. ][0-9]\{8\}$//;s/.* \([^ ]\{1,\}\)$/\1/; q'`
@@ -47537,7 +47552,7 @@ $as_echo "$glibcxx_gnu_ld_version" >&6; }
 
   # Set --gc-sections.
   glibcxx_have_gc_sections=no
-  if test "$glibcxx_ld_is_gold" = "yes"; then
+  if test "$glibcxx_ld_is_gold" = "yes" || test "$glibcxx_ld_is_mold" = "yes" ; then
     if $LD --help 2>/dev/null | grep gc-sections >/dev/null 2>&1; then
       glibcxx_have_gc_sections=yes
     fi
@@ -47995,12 +48010,15 @@ ac_compiler_gnu=$ac_cv_c_compiler_gnu
   # Start by getting the version number.  I think the libtool test already
   # does some of this, but throws away the result.
   glibcxx_ld_is_gold=no
+  glibcxx_ld_is_mold=no
   if test x"$with_gnu_ld" = x"yes"; then
     { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ld version" >&5
 $as_echo_n "checking for ld version... " >&6; }
 
     if $LD --version 2>/dev/null | grep 'GNU gold' >/dev/null 2>&1; then
       glibcxx_ld_is_gold=yes
+    elif $LD --version 2>/dev/null | grep 'mold' >/dev/null 2>&1; then
+      glibcxx_ld_is_mold=yes
     fi
     ldver=`$LD --version 2>/dev/null |
 	   sed -e 's/[. ][0-9]\{8\}$//;s/.* \([^ ]\{1,\}\)$/\1/; q'`
@@ -48013,7 +48031,7 @@ $as_echo "$glibcxx_gnu_ld_version" >&6; }
 
   # Set --gc-sections.
   glibcxx_have_gc_sections=no
-  if test "$glibcxx_ld_is_gold" = "yes"; then
+  if test "$glibcxx_ld_is_gold" = "yes" || test "$glibcxx_ld_is_mold" = "yes" ; then
     if $LD --help 2>/dev/null | grep gc-sections >/dev/null 2>&1; then
       glibcxx_have_gc_sections=yes
     fi
@@ -54383,12 +54401,15 @@ _ACEOF
   # Start by getting the version number.  I think the libtool test already
   # does some of this, but throws away the result.
   glibcxx_ld_is_gold=no
+  glibcxx_ld_is_mold=no
   if test x"$with_gnu_ld" = x"yes"; then
     { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ld version" >&5
 $as_echo_n "checking for ld version... " >&6; }
 
     if $LD --version 2>/dev/null | grep 'GNU gold' >/dev/null 2>&1; then
       glibcxx_ld_is_gold=yes
+    elif $LD --version 2>/dev/null | grep 'mold' >/dev/null 2>&1; then
+      glibcxx_ld_is_mold=yes
     fi
     ldver=`$LD --version 2>/dev/null |
 	   sed -e 's/[. ][0-9]\{8\}$//;s/.* \([^ ]\{1,\}\)$/\1/; q'`
@@ -54401,7 +54422,7 @@ $as_echo "$glibcxx_gnu_ld_version" >&6; }
 
   # Set --gc-sections.
   glibcxx_have_gc_sections=no
-  if test "$glibcxx_ld_is_gold" = "yes"; then
+  if test "$glibcxx_ld_is_gold" = "yes" || test "$glibcxx_ld_is_mold" = "yes" ; then
     if $LD --help 2>/dev/null | grep gc-sections >/dev/null 2>&1; then
       glibcxx_have_gc_sections=yes
     fi
@@ -60531,12 +60552,15 @@ $as_echo "#define HAVE_TLS 1" >>confdefs.h
   # Start by getting the version number.  I think the libtool test already
   # does some of this, but throws away the result.
   glibcxx_ld_is_gold=no
+  glibcxx_ld_is_mold=no
   if test x"$with_gnu_ld" = x"yes"; then
     { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ld version" >&5
 $as_echo_n "checking for ld version... " >&6; }
 
     if $LD --version 2>/dev/null | grep 'GNU gold' >/dev/null 2>&1; then
       glibcxx_ld_is_gold=yes
+    elif $LD --version 2>/dev/null | grep 'mold' >/dev/null 2>&1; then
+      glibcxx_ld_is_mold=yes
     fi
     ldver=`$LD --version 2>/dev/null |
 	   sed -e 's/[. ][0-9]\{8\}$//;s/.* \([^ ]\{1,\}\)$/\1/; q'`
@@ -60549,7 +60573,7 @@ $as_echo "$glibcxx_gnu_ld_version" >&6; }
 
   # Set --gc-sections.
   glibcxx_have_gc_sections=no
-  if test "$glibcxx_ld_is_gold" = "yes"; then
+  if test "$glibcxx_ld_is_gold" = "yes" || test "$glibcxx_ld_is_mold" = "yes" ; then
     if $LD --help 2>/dev/null | grep gc-sections >/dev/null 2>&1; then
       glibcxx_have_gc_sections=yes
     fi
@@ -60741,12 +60765,15 @@ done
   # Start by getting the version number.  I think the libtool test already
   # does some of this, but throws away the result.
   glibcxx_ld_is_gold=no
+  glibcxx_ld_is_mold=no
   if test x"$with_gnu_ld" = x"yes"; then
     { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ld version" >&5
 $as_echo_n "checking for ld version... " >&6; }
 
     if $LD --version 2>/dev/null | grep 'GNU gold' >/dev/null 2>&1; then
       glibcxx_ld_is_gold=yes
+    elif $LD --version 2>/dev/null | grep 'mold' >/dev/null 2>&1; then
+      glibcxx_ld_is_mold=yes
     fi
     ldver=`$LD --version 2>/dev/null |
 	   sed -e 's/[. ][0-9]\{8\}$//;s/.* \([^ ]\{1,\}\)$/\1/; q'`
@@ -60759,7 +60786,7 @@ $as_echo "$glibcxx_gnu_ld_version" >&6; }
 
   # Set --gc-sections.
   glibcxx_have_gc_sections=no
-  if test "$glibcxx_ld_is_gold" = "yes"; then
+  if test "$glibcxx_ld_is_gold" = "yes" || test "$glibcxx_ld_is_mold" = "yes" ; then
     if $LD --help 2>/dev/null | grep gc-sections >/dev/null 2>&1; then
       glibcxx_have_gc_sections=yes
     fi
@@ -60970,12 +60997,15 @@ ac_compiler_gnu=$ac_cv_c_compiler_gnu
   # Start by getting the version number.  I think the libtool test already
   # does some of this, but throws away the result.
   glibcxx_ld_is_gold=no
+  glibcxx_ld_is_mold=no
   if test x"$with_gnu_ld" = x"yes"; then
     { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ld version" >&5
 $as_echo_n "checking for ld version... " >&6; }
 
     if $LD --version 2>/dev/null | grep 'GNU gold' >/dev/null 2>&1; then
       glibcxx_ld_is_gold=yes
+    elif $LD --version 2>/dev/null | grep 'mold' >/dev/null 2>&1; then
+      glibcxx_ld_is_mold=yes
     fi
     ldver=`$LD --version 2>/dev/null |
 	   sed -e 's/[. ][0-9]\{8\}$//;s/.* \([^ ]\{1,\}\)$/\1/; q'`
@@ -60988,7 +61018,7 @@ $as_echo "$glibcxx_gnu_ld_version" >&6; }
 
   # Set --gc-sections.
   glibcxx_have_gc_sections=no
-  if test "$glibcxx_ld_is_gold" = "yes"; then
+  if test "$glibcxx_ld_is_gold" = "yes" || test "$glibcxx_ld_is_mold" = "yes" ; then
     if $LD --help 2>/dev/null | grep gc-sections >/dev/null 2>&1; then
       glibcxx_have_gc_sections=yes
     fi
@@ -74929,6 +74959,8 @@ $as_echo "$as_me: WARNING: === Symbol versioning will be disabled." >&2;}
     enable_symvers=no
   elif test $glibcxx_ld_is_gold = yes ; then
     : All versions of gold support symbol versioning.
+  elif test $glibcxx_ld_is_mold = yes ; then
+    : All versions of mold support symbol versioning.
   elif test $glibcxx_gnu_ld_version -lt $glibcxx_min_gnu_ld_version ; then
     # The right tools, the right setup, but too old.  Fallbacks?
     { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: === Linker version $glibcxx_gnu_ld_version is too old for" >&5