* acinclude.m4 (LIBGOMP_ENABLE_SYMVERS): Handle sun style.

	Define LIBGOMP_BUILD_VERSIONED_SHLIB_GNU,
	LIBGOMP_BUILD_VERSIONED_SHLIB_SUN automake conditionals.
	(HAVE_SYMVER_SYMBOL_RENAMING_RUNTIME_SUPPORT): Define unless
	targetting solaris2*.
	* configure: Regenerate.
	* config.h.in: Regenerate.

	* Makefile.am [LIBGOMP_BUILD_VERSIONED_SHLIB]: Protect
	libgomp_version_script with LIBGOMP_BUILD_VERSIONED_SHLIB_GNU.
	Add libgomp_version_dep.
	[LIBGOMP_BUILD_VERSIONED_SHLIB_SUN]: Handle Sun symbol
	versioning.
	[!LIBGOMP_BUILD_VERSIONED_SHLIB]: Add libgomp_version_dep.
	(libgomp_la_DEPENDENCIES): Set to $(libgomp_version_dep).
	* Makefile.in: Regenerate.

	* libgomp.h (LIBGOMP_GNU_SYMBOL_VERSIONING): Undef unless
	HAVE_SYMVER_SYMBOL_RENAMING_RUNTIME_SUPPORT.
	* libgomp.map (OMP_1.0): Move symbols both in OMP_1.0 and OMP_3.0
	to common block, protected by
	HAVE_SYMVER_SYMBOL_RENAMING_RUNTIME_SUPPORT.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@161842 138bc75d-0d04-0410-961f-82ee72b054a4

8 files changed, 237 insertions, 28 deletions

diff --git a/libgomp/ChangeLog b/libgomp/ChangeLog
index e2127b02702..4ac37eb56c0 100644
--- a/libgomp/ChangeLog
+++ b/libgomp/ChangeLog
@@ -1,3 +1,28 @@
+2010-07-05  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
+
+	* acinclude.m4 (LIBGOMP_ENABLE_SYMVERS): Handle sun style.
+	Define LIBGOMP_BUILD_VERSIONED_SHLIB_GNU,
+	LIBGOMP_BUILD_VERSIONED_SHLIB_SUN automake conditionals.
+	(HAVE_SYMVER_SYMBOL_RENAMING_RUNTIME_SUPPORT): Define unless
+	targetting solaris2*.
+	* configure: Regenerate.
+	* config.h.in: Regenerate.
+
+	* Makefile.am [LIBGOMP_BUILD_VERSIONED_SHLIB]: Protect
+	libgomp_version_script with LIBGOMP_BUILD_VERSIONED_SHLIB_GNU.
+	Add libgomp_version_dep.
+	[LIBGOMP_BUILD_VERSIONED_SHLIB_SUN]: Handle Sun symbol
+	versioning.
+	[!LIBGOMP_BUILD_VERSIONED_SHLIB]: Add libgomp_version_dep.
+	(libgomp_la_DEPENDENCIES): Set to $(libgomp_version_dep).
+	* Makefile.in: Regenerate.
+
+	* libgomp.h (LIBGOMP_GNU_SYMBOL_VERSIONING): Undef unless
+	HAVE_SYMVER_SYMBOL_RENAMING_RUNTIME_SUPPORT.
+	* libgomp.map (OMP_1.0): Move symbols both in OMP_1.0 and OMP_3.0
+	to common block, protected by
+	HAVE_SYMVER_SYMBOL_RENAMING_RUNTIME_SUPPORT.
+
 2010-06-10  Gerald Pfeifer  <gerald@pfeifer.com>
 
 	* libgomp.texi: Move to GFDL version 1.3.  Update copyright years.
diff --git a/libgomp/Makefile.am b/libgomp/Makefile.am
index 3786bee4c13..2428e66ee7a 100644
--- a/libgomp/Makefile.am
+++ b/libgomp/Makefile.am
@@ -22,13 +22,39 @@ toolexeclib_LTLIBRARIES = libgomp.la
 nodist_toolexeclib_HEADERS = libgomp.spec
 
 if LIBGOMP_BUILD_VERSIONED_SHLIB
+if LIBGOMP_BUILD_VERSIONED_SHLIB_GNU
+if LIBGOMP_BUILD_VERSIONED_SHLIB_SOL2
+libgomp_version_script = -Wl,--version-script,libgomp.map-sol2
+libgomp_version_dep = libgomp.map-sol2
+libgomp.map-sol2 : $(top_srcdir)/libgomp.map
+	sed -e '/^#ifdef HAVE_SYMVER_SYMBOL_RENAMING_RUNTIME_SUPPORT/,/^#endif/d' $< \
+	 > $@ || (rm -f $@ ; exit 1)
+else
 libgomp_version_script = -Wl,--version-script,$(top_srcdir)/libgomp.map
+libgomp_version_dep = $(top_srcdir)/libgomp.map
+endif
+endif
+if LIBGOMP_BUILD_VERSIONED_SHLIB_SUN
+libgomp_version_script = -Wl,-M,libgomp.map-sun
+libgomp_version_dep = libgomp.map-sun
+libgomp.map-sun : $(top_srcdir)/libgomp.map \
+		$(top_srcdir)/../contrib/make_sunver.pl \
+		$(libgomp_la_OBJECTS) $(libgomp_la_LIBADD)
+	perl $(top_srcdir)/../contrib/make_sunver.pl \
+	  $(top_srcdir)/libgomp.map \
+	  $(libgomp_la_OBJECTS:%.lo=.libs/%.o) \
+	 `echo $(libgomp_la_LIBADD) | \
+	    sed 's,/\([^/.]*\)\.la,/.libs/\1.a,g'` \
+	 > $@ || (rm -f $@ ; exit 1)
+endif
 else
 libgomp_version_script =
+libgomp_version_dep =
 endif
 libgomp_version_info = -version-info $(libtool_VERSION)
 libgomp_la_LDFLAGS = $(libgomp_version_info) $(libgomp_version_script) \
         -no-undefined -bindir "$(bindir)"
+libgomp_la_DEPENDENCIES = $(libgomp_version_dep)
 libgomp_la_LINK = $(LINK) $(libgomp_la_LDFLAGS)
 
 libgomp_la_SOURCES = alloc.c barrier.c critical.c env.c error.c iter.c \
diff --git a/libgomp/Makefile.in b/libgomp/Makefile.in
index c27d7a4c786..ee57f676075 100644
--- a/libgomp/Makefile.in
+++ b/libgomp/Makefile.in
@@ -297,11 +297,18 @@ AM_LDFLAGS = $(XLDFLAGS) $(SECTION_LDFLAGS) $(OPT_LDFLAGS)
 toolexeclib_LTLIBRARIES = libgomp.la
 nodist_toolexeclib_HEADERS = libgomp.spec
 @LIBGOMP_BUILD_VERSIONED_SHLIB_FALSE@libgomp_version_script = 
-@LIBGOMP_BUILD_VERSIONED_SHLIB_TRUE@libgomp_version_script = -Wl,--version-script,$(top_srcdir)/libgomp.map
+@LIBGOMP_BUILD_VERSIONED_SHLIB_GNU_TRUE@@LIBGOMP_BUILD_VERSIONED_SHLIB_SOL2_FALSE@@LIBGOMP_BUILD_VERSIONED_SHLIB_TRUE@libgomp_version_script = -Wl,--version-script,$(top_srcdir)/libgomp.map
+@LIBGOMP_BUILD_VERSIONED_SHLIB_GNU_TRUE@@LIBGOMP_BUILD_VERSIONED_SHLIB_SOL2_TRUE@@LIBGOMP_BUILD_VERSIONED_SHLIB_TRUE@libgomp_version_script = -Wl,--version-script,libgomp.map-sol2
+@LIBGOMP_BUILD_VERSIONED_SHLIB_SUN_TRUE@@LIBGOMP_BUILD_VERSIONED_SHLIB_TRUE@libgomp_version_script = -Wl,-M,libgomp.map-sun
+@LIBGOMP_BUILD_VERSIONED_SHLIB_FALSE@libgomp_version_dep = 
+@LIBGOMP_BUILD_VERSIONED_SHLIB_GNU_TRUE@@LIBGOMP_BUILD_VERSIONED_SHLIB_SOL2_FALSE@@LIBGOMP_BUILD_VERSIONED_SHLIB_TRUE@libgomp_version_dep = $(top_srcdir)/libgomp.map
+@LIBGOMP_BUILD_VERSIONED_SHLIB_GNU_TRUE@@LIBGOMP_BUILD_VERSIONED_SHLIB_SOL2_TRUE@@LIBGOMP_BUILD_VERSIONED_SHLIB_TRUE@libgomp_version_dep = libgomp.map-sol2
+@LIBGOMP_BUILD_VERSIONED_SHLIB_SUN_TRUE@@LIBGOMP_BUILD_VERSIONED_SHLIB_TRUE@libgomp_version_dep = libgomp.map-sun
 libgomp_version_info = -version-info $(libtool_VERSION)
 libgomp_la_LDFLAGS = $(libgomp_version_info) $(libgomp_version_script) \
         -no-undefined -bindir "$(bindir)"
 
+libgomp_la_DEPENDENCIES = $(libgomp_version_dep)
 libgomp_la_LINK = $(LINK) $(libgomp_la_LDFLAGS)
 libgomp_la_SOURCES = alloc.c barrier.c critical.c env.c error.c iter.c \
 	iter_ull.c loop.c loop_ull.c ordered.c parallel.c sections.c single.c \
@@ -1057,6 +1064,18 @@ uninstall-am: uninstall-dvi-am uninstall-html-am uninstall-info-am \
 
 
 vpath % $(strip $(search_path))
+@LIBGOMP_BUILD_VERSIONED_SHLIB_GNU_TRUE@@LIBGOMP_BUILD_VERSIONED_SHLIB_SOL2_TRUE@@LIBGOMP_BUILD_VERSIONED_SHLIB_TRUE@libgomp.map-sol2 : $(top_srcdir)/libgomp.map
+@LIBGOMP_BUILD_VERSIONED_SHLIB_GNU_TRUE@@LIBGOMP_BUILD_VERSIONED_SHLIB_SOL2_TRUE@@LIBGOMP_BUILD_VERSIONED_SHLIB_TRUE@	sed -e '/^#ifdef HAVE_SYMVER_SYMBOL_RENAMING_RUNTIME_SUPPORT/,/^#endif/d' $< \
+@LIBGOMP_BUILD_VERSIONED_SHLIB_GNU_TRUE@@LIBGOMP_BUILD_VERSIONED_SHLIB_SOL2_TRUE@@LIBGOMP_BUILD_VERSIONED_SHLIB_TRUE@	 > $@ || (rm -f $@ ; exit 1)
+@LIBGOMP_BUILD_VERSIONED_SHLIB_SUN_TRUE@@LIBGOMP_BUILD_VERSIONED_SHLIB_TRUE@libgomp.map-sun : $(top_srcdir)/libgomp.map \
+@LIBGOMP_BUILD_VERSIONED_SHLIB_SUN_TRUE@@LIBGOMP_BUILD_VERSIONED_SHLIB_TRUE@		$(top_srcdir)/../contrib/make_sunver.pl \
+@LIBGOMP_BUILD_VERSIONED_SHLIB_SUN_TRUE@@LIBGOMP_BUILD_VERSIONED_SHLIB_TRUE@		$(libgomp_la_OBJECTS) $(libgomp_la_LIBADD)
+@LIBGOMP_BUILD_VERSIONED_SHLIB_SUN_TRUE@@LIBGOMP_BUILD_VERSIONED_SHLIB_TRUE@	perl $(top_srcdir)/../contrib/make_sunver.pl \
+@LIBGOMP_BUILD_VERSIONED_SHLIB_SUN_TRUE@@LIBGOMP_BUILD_VERSIONED_SHLIB_TRUE@	  $(top_srcdir)/libgomp.map \
+@LIBGOMP_BUILD_VERSIONED_SHLIB_SUN_TRUE@@LIBGOMP_BUILD_VERSIONED_SHLIB_TRUE@	  $(libgomp_la_OBJECTS:%.lo=.libs/%.o) \
+@LIBGOMP_BUILD_VERSIONED_SHLIB_SUN_TRUE@@LIBGOMP_BUILD_VERSIONED_SHLIB_TRUE@	 `echo $(libgomp_la_LIBADD) | \
+@LIBGOMP_BUILD_VERSIONED_SHLIB_SUN_TRUE@@LIBGOMP_BUILD_VERSIONED_SHLIB_TRUE@	    sed 's,/\([^/.]*\)\.la,/.libs/\1.a,g'` \
+@LIBGOMP_BUILD_VERSIONED_SHLIB_SUN_TRUE@@LIBGOMP_BUILD_VERSIONED_SHLIB_TRUE@	 > $@ || (rm -f $@ ; exit 1)
 
 omp_lib_kinds.mod: omp_lib.mod
 	:
diff --git a/libgomp/acinclude.m4 b/libgomp/acinclude.m4
index 0c671d4eb74..8d6d0e54a7b 100644
--- a/libgomp/acinclude.m4
+++ b/libgomp/acinclude.m4
@@ -223,16 +223,42 @@ AC_DEFUN([LIBGOMP_ENABLE_SYMVERS], [
 
 LIBGOMP_ENABLE(symvers,yes,[=STYLE],
   [enables symbol versioning of the shared library],
-  [permit yes|no|gnu])
+  [permit yes|no|gnu|sun])
 
 # If we never went through the LIBGOMP_CHECK_LINKER_FEATURES macro, then we
 # don't know enough about $LD to do tricks...
 AC_REQUIRE([LIBGOMP_CHECK_LINKER_FEATURES])
 # FIXME  The following test is too strict, in theory.
-if test $enable_shared = no ||
-        test "x$LD" = x ||
-        test x$libgomp_gnu_ld_version = x; then
+if test $enable_shared = no || test "x$LD" = x; then
   enable_symvers=no
+else
+  if test $with_gnu_ld = yes ; then
+    enable_symvers=gnu
+  else
+    case ${target_os} in
+      # Sun symbol versioning exists since Solaris 2.5.
+      solaris2.[[5-9]]* | solaris2.1[[0-9]]*)
+        enable_symvers=sun ;;
+      *)
+        enable_symvers=no ;;
+    esac
+  fi
+fi
+
+# Check if 'sun' was requested on non-Solaris 2 platforms.
+if test x$enable_symvers = xsun ; then
+  case ${target_os} in
+    solaris2*)
+      # All fine.
+      ;;
+    *)
+      # Unlikely to work.
+      AC_MSG_WARN([=== You have requested Sun symbol versioning, but])
+      AC_MSG_WARN([=== you are not targetting Solaris 2.])
+      AC_MSG_WARN([=== Symbol versioning will be disabled.])
+      enable_symvers=no
+      ;;
+  esac
 fi
 
 # Check to see if libgcc_s exists, indicating that shared libgcc is possible.
@@ -269,10 +295,8 @@ libgomp_min_gnu_ld_version=21400
 
 # Check to see if unspecified "yes" value can win, given results above.
 # Change "yes" into either "no" or a style name.
-if test $enable_symvers = yes; then
-  if test $with_gnu_ld = yes &&
-     test $libgomp_shared_libgcc = yes;
-  then
+if test $enable_symvers != no && test $libgomp_shared_libgcc = yes; then
+  if test $with_gnu_ld = yes; then
     if test $libgomp_gnu_ld_version -ge $libgomp_min_gnu_ld_version ; then
       enable_symvers=gnu
     elif test $libgomp_ld_is_gold = yes ; then
@@ -295,6 +319,8 @@ if test $enable_symvers = yes; then
         enable_symvers=no
       fi
     fi
+  elif test $enable_symvers = sun; then
+    : All interesting versions of Sun ld support sun style symbol versioning.
   else
     # just fail for now
     AC_MSG_WARN([=== You have requested some kind of symbol versioning, but])
@@ -316,5 +342,22 @@ if test $libgomp_cv_have_as_symver_directive = yes; then
 fi
 
 AM_CONDITIONAL(LIBGOMP_BUILD_VERSIONED_SHLIB, test $enable_symvers != no)
+AM_CONDITIONAL(LIBGOMP_BUILD_VERSIONED_SHLIB_GNU, test $enable_symvers = gnu)
+AM_CONDITIONAL(LIBGOMP_BUILD_VERSIONED_SHLIB_SUN, test $enable_symvers = sun)
 AC_MSG_NOTICE(versioning on shared library symbols is $enable_symvers)
+
+if test $enable_symvers != no ; then
+   case ${target_os} in
+     # The Solaris 2 runtime linker doesn't support the GNU extension of
+     # binding the same symbol to different versions
+     solaris2*)
+       symvers_renaming=no ;;
+     # Other platforms with GNU symbol versioning (GNU/Linux, more?) do.
+     *)
+       AC_DEFINE(HAVE_SYMVER_SYMBOL_RENAMING_RUNTIME_SUPPORT, 1,
+         [Define to 1 if the target runtime linker supports binding the same symbol to different versions.])
+       symvers_renaming=yes ;;
+    esac
+fi
+AM_CONDITIONAL(LIBGOMP_BUILD_VERSIONED_SHLIB_SOL2, test $symvers_renaming = no)
 ])
diff --git a/libgomp/config.h.in b/libgomp/config.h.in
index c88660a945e..14c7e2a9a1b 100644
--- a/libgomp/config.h.in
+++ b/libgomp/config.h.in
@@ -54,6 +54,10 @@
 /* Define to 1 if you have the `strtoull' function. */
 #undef HAVE_STRTOULL
 
+/* Define to 1 if the target runtime linker supports binding the same symbol
+   to different versions. */
+#undef HAVE_SYMVER_SYMBOL_RENAMING_RUNTIME_SUPPORT
+
 /* Define to 1 if the target supports __sync_*_compare_and_swap */
 #undef HAVE_SYNC_BUILTINS
 
diff --git a/libgomp/configure b/libgomp/configure
index e9b3a656291..9074529aef5 100755
--- a/libgomp/configure
+++ b/libgomp/configure
@@ -619,6 +619,12 @@ link_gomp
 XLDFLAGS
 XCFLAGS
 config_path
+LIBGOMP_BUILD_VERSIONED_SHLIB_SOL2_FALSE
+LIBGOMP_BUILD_VERSIONED_SHLIB_SOL2_TRUE
+LIBGOMP_BUILD_VERSIONED_SHLIB_SUN_FALSE
+LIBGOMP_BUILD_VERSIONED_SHLIB_SUN_TRUE
+LIBGOMP_BUILD_VERSIONED_SHLIB_GNU_FALSE
+LIBGOMP_BUILD_VERSIONED_SHLIB_GNU_TRUE
 LIBGOMP_BUILD_VERSIONED_SHLIB_FALSE
 LIBGOMP_BUILD_VERSIONED_SHLIB_TRUE
 OPT_LDFLAGS
@@ -11083,7 +11089,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 11086 "configure"
+#line 11092 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -11189,7 +11195,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 11192 "configure"
+#line 11198 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -15754,7 +15760,7 @@ $as_echo "$ac_sectionLDflags" >&6; }
 if test "${enable_symvers+set}" = set; then :
   enableval=$enable_symvers;
       case "$enableval" in
-       yes|no|gnu) ;;
+       yes|no|gnu|sun) ;;
        *) as_fn_error "Unknown argument to enable/disable symvers" "$LINENO" 5 ;;
                           esac
 
@@ -15768,10 +15774,39 @@ fi
 # don't know enough about $LD to do tricks...
 
 # FIXME  The following test is too strict, in theory.
-if test $enable_shared = no ||
-        test "x$LD" = x ||
-        test x$libgomp_gnu_ld_version = x; then
+if test $enable_shared = no || test "x$LD" = x; then
   enable_symvers=no
+else
+  if test $with_gnu_ld = yes ; then
+    enable_symvers=gnu
+  else
+    case ${target_os} in
+      # Sun symbol versioning exists since Solaris 2.5.
+      solaris2.[5-9]* | solaris2.1[0-9]*)
+        enable_symvers=sun ;;
+      *)
+        enable_symvers=no ;;
+    esac
+  fi
+fi
+
+# Check if 'sun' was requested on non-Solaris 2 platforms.
+if test x$enable_symvers = xsun ; then
+  case ${target_os} in
+    solaris2*)
+      # All fine.
+      ;;
+    *)
+      # Unlikely to work.
+      { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: === You have requested Sun symbol versioning, but" >&5
+$as_echo "$as_me: WARNING: === You have requested Sun symbol versioning, but" >&2;}
+      { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: === you are not targetting Solaris 2." >&5
+$as_echo "$as_me: WARNING: === you are not targetting Solaris 2." >&2;}
+      { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: === Symbol versioning will be disabled." >&5
+$as_echo "$as_me: WARNING: === Symbol versioning will be disabled." >&2;}
+      enable_symvers=no
+      ;;
+  esac
 fi
 
 # Check to see if libgcc_s exists, indicating that shared libgcc is possible.
@@ -15840,10 +15875,8 @@ libgomp_min_gnu_ld_version=21400
 
 # Check to see if unspecified "yes" value can win, given results above.
 # Change "yes" into either "no" or a style name.
-if test $enable_symvers = yes; then
-  if test $with_gnu_ld = yes &&
-     test $libgomp_shared_libgcc = yes;
-  then
+if test $enable_symvers != no && test $libgomp_shared_libgcc = yes; then
+  if test $with_gnu_ld = yes; then
     if test $libgomp_gnu_ld_version -ge $libgomp_min_gnu_ld_version ; then
       enable_symvers=gnu
     elif test $libgomp_ld_is_gold = yes ; then
@@ -15870,6 +15903,8 @@ $as_echo "$as_me: WARNING: === Symbol versioning will be disabled." >&2;}
         enable_symvers=no
       fi
     fi
+  elif test $enable_symvers = sun; then
+    : All interesting versions of Sun ld support sun style symbol versioning.
   else
     # just fail for now
     { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: === You have requested some kind of symbol versioning, but" >&5
@@ -15924,9 +15959,48 @@ else
   LIBGOMP_BUILD_VERSIONED_SHLIB_FALSE=
 fi
 
+ if test $enable_symvers = gnu; then
+  LIBGOMP_BUILD_VERSIONED_SHLIB_GNU_TRUE=
+  LIBGOMP_BUILD_VERSIONED_SHLIB_GNU_FALSE='#'
+else
+  LIBGOMP_BUILD_VERSIONED_SHLIB_GNU_TRUE='#'
+  LIBGOMP_BUILD_VERSIONED_SHLIB_GNU_FALSE=
+fi
+
+ if test $enable_symvers = sun; then
+  LIBGOMP_BUILD_VERSIONED_SHLIB_SUN_TRUE=
+  LIBGOMP_BUILD_VERSIONED_SHLIB_SUN_FALSE='#'
+else
+  LIBGOMP_BUILD_VERSIONED_SHLIB_SUN_TRUE='#'
+  LIBGOMP_BUILD_VERSIONED_SHLIB_SUN_FALSE=
+fi
+
 { $as_echo "$as_me:${as_lineno-$LINENO}: versioning on shared library symbols is $enable_symvers" >&5
 $as_echo "$as_me: versioning on shared library symbols is $enable_symvers" >&6;}
 
+if test $enable_symvers != no ; then
+   case ${target_os} in
+     # The Solaris 2 runtime linker doesn't support the GNU extension of
+     # binding the same symbol to different versions
+     solaris2*)
+       symvers_renaming=no ;;
+     # Other platforms with GNU symbol versioning (GNU/Linux, more?) do.
+     *)
+
+$as_echo "#define HAVE_SYMVER_SYMBOL_RENAMING_RUNTIME_SUPPORT 1" >>confdefs.h
+
+       symvers_renaming=yes ;;
+    esac
+fi
+ if test $symvers_renaming = no; then
+  LIBGOMP_BUILD_VERSIONED_SHLIB_SOL2_TRUE=
+  LIBGOMP_BUILD_VERSIONED_SHLIB_SOL2_FALSE='#'
+else
+  LIBGOMP_BUILD_VERSIONED_SHLIB_SOL2_TRUE='#'
+  LIBGOMP_BUILD_VERSIONED_SHLIB_SOL2_FALSE=
+fi
+
+
 
 if test $enable_symvers = gnu; then
 
@@ -16309,6 +16383,18 @@ if test -z "${LIBGOMP_BUILD_VERSIONED_SHLIB_TRUE}" && test -z "${LIBGOMP_BUILD_V
   as_fn_error "conditional \"LIBGOMP_BUILD_VERSIONED_SHLIB\" was never defined.
 Usually this means the macro was only invoked conditionally." "$LINENO" 5
 fi
+if test -z "${LIBGOMP_BUILD_VERSIONED_SHLIB_GNU_TRUE}" && test -z "${LIBGOMP_BUILD_VERSIONED_SHLIB_GNU_FALSE}"; then
+  as_fn_error "conditional \"LIBGOMP_BUILD_VERSIONED_SHLIB_GNU\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${LIBGOMP_BUILD_VERSIONED_SHLIB_SUN_TRUE}" && test -z "${LIBGOMP_BUILD_VERSIONED_SHLIB_SUN_FALSE}"; then
+  as_fn_error "conditional \"LIBGOMP_BUILD_VERSIONED_SHLIB_SUN\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${LIBGOMP_BUILD_VERSIONED_SHLIB_SOL2_TRUE}" && test -z "${LIBGOMP_BUILD_VERSIONED_SHLIB_SOL2_FALSE}"; then
+  as_fn_error "conditional \"LIBGOMP_BUILD_VERSIONED_SHLIB_SOL2\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
 if test -z "${USE_FORTRAN_TRUE}" && test -z "${USE_FORTRAN_FALSE}"; then
   as_fn_error "conditional \"USE_FORTRAN\" was never defined.
 Usually this means the macro was only invoked conditionally." "$LINENO" 5
diff --git a/libgomp/libgomp.h b/libgomp/libgomp.h
index 1d21cc09cfe..edde1e97a1b 100644
--- a/libgomp/libgomp.h
+++ b/libgomp/libgomp.h
@@ -514,7 +514,8 @@ gomp_work_share_init_done (void)
 #if !defined (HAVE_ATTRIBUTE_VISIBILITY) \
     || !defined (HAVE_ATTRIBUTE_ALIAS) \
     || !defined (HAVE_AS_SYMVER_DIRECTIVE) \
-    || !defined (PIC)
+    || !defined (PIC) \
+    || !defined (HAVE_SYMVER_SYMBOL_RENAMING_RUNTIME_SUPPORT)
 # undef LIBGOMP_GNU_SYMBOL_VERSIONING
 #endif
 
diff --git a/libgomp/libgomp.map b/libgomp/libgomp.map
index e6c12fa0019..d95693dbdde 100644
--- a/libgomp/libgomp.map
+++ b/libgomp/libgomp.map
@@ -10,6 +10,10 @@ OMP_1.0 {
 	omp_get_dynamic;
 	omp_set_nested;
 	omp_get_nested;
+#ifdef HAVE_SYMVER_SYMBOL_RENAMING_RUNTIME_SUPPORT
+        # If the assembler used lacks the .symver directive or the linker
+	# doesn't support GNU symbol versioning, we have the same symbol in
+	# two versions, which Sun ld chokes on. 
 	omp_init_lock;
 	omp_init_nest_lock;
 	omp_destroy_lock;
@@ -22,6 +26,15 @@ OMP_1.0 {
 	omp_test_nest_lock;
 	omp_destroy_lock_;
 	omp_destroy_nest_lock_;
+	omp_init_lock_;
+	omp_init_nest_lock_;
+	omp_set_lock_;
+	omp_set_nest_lock_;
+	omp_test_lock_;
+	omp_test_nest_lock_;
+	omp_unset_lock_;
+	omp_unset_nest_lock_;
+#endif
 	omp_get_dynamic_;
 	omp_get_max_threads_;
 	omp_get_nested_;
@@ -29,20 +42,12 @@ OMP_1.0 {
 	omp_get_num_threads_;
 	omp_get_thread_num_;
 	omp_in_parallel_;
-	omp_init_lock_;
-	omp_init_nest_lock_;
 	omp_set_dynamic_;
 	omp_set_dynamic_8_;
-	omp_set_lock_;
-	omp_set_nest_lock_;
 	omp_set_nested_;
 	omp_set_nested_8_;
 	omp_set_num_threads_;
 	omp_set_num_threads_8_;
-	omp_test_lock_;
-	omp_test_nest_lock_;
-	omp_unset_lock_;
-	omp_unset_nest_lock_;
   local:
 	*;
 };