build: add Solaris symbol versioning

The versioning facility in the Solaris linker differs from Linux in 3 ways:

1. It does not support globs in linker scripts for
symbol versioning -- this is a GNU extension.

2. The linker argument is '-M', instead of '--version-script'.

3. It is picky about line endings.
Each symbol or directive must be on a line of it's own.

Let's use make_sunver.pl from GCC to generate a version script that works
correctly with the Solaris linker. It's function is to correctly expand the
globs in the original generated version script.

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

1 files changed, 7 insertions, 3 deletions

diff --git a/configure b/configure
index ac4c2eb5c6..40bf7255bd 100755
--- a/configure
+++ b/configure
@@ -3611,6 +3611,7 @@ case $target_os in
             echo "hwcap_1 = OVERRIDE;" > mapfile &&
             add_ldflags -Wl,-M,mapfile
         nm_default='nm -P -g'
+        SLIB_CREATE_DEF_CMD='$(Q)perl $(SRC_PATH)/compat/solaris/make_sunver.pl $$(filter %.ver,$$^) $(OBJS) | grep -v @ > $(SUBDIR)lib$(NAME).ver-sol2'
         ;;
     netbsd)
         disable symver
@@ -4650,10 +4651,14 @@ enabled xmm_clobber_test &&
                   -Wl,--wrap,sws_scale ||
     disable xmm_clobber_test
 
-echo "X{};" > $TMPV
+echo "X { local: *; };" > $TMPV
 if test_ldflags -Wl,--version-script,$TMPV; then
     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
-    check_cc <<EOF && enable symver_asm_label
+elif test_ldflags -Wl,-M,$TMPV; then
+    append SHFLAGS '-Wl,-M,\$(SUBDIR)lib\$(NAME).ver-sol2'
+fi
+
+check_cc <<EOF && enable symver_asm_label
 void ff_foo(void) __asm__ ("av_foo@VERSION");
 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
 EOF
@@ -4661,7 +4666,6 @@ EOF
 __asm__(".symver ff_foo,av_foo@VERSION");
 void ff_foo(void) {}
 EOF
-fi
 
 if [ -z "$optflags" ]; then
     if enabled small; then