diff options
| author | Jakub Jelinek <jakub@redhat.com> | 2009-01-07 23:49:29 +0100 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2009-01-07 23:49:29 +0100 |
| commit | 1f93f6871ed8248e799690c7029cf1d5b12ff2f2 (patch) | |
| tree | c51588bf25bcc97ad673fc18f899ae85d03c2a0f /libstdc++-v3/acinclude.m4 | |
| parent | 876080ffb70bdcb889f47aa334547cf25398e943 (diff) | |
| download | gcc-1f93f6871ed8248e799690c7029cf1d5b12ff2f2.tar.gz | |
re PR libstdc++/38092 (libstdc++ doesn't build with GNU ld 2.19 and Sun as: no .symver support)
PR libstdc++/38092
* acinclude.m4 (HAVE_AS_SYMVER_DIRECTIVE): New test.
* src/compatibility.cc: Don't use .symver directives if
_GLIBCXX_HAVE_AS_SYMVER_DIRECTIVE is not defined.
* config.h.in: Regenerated.
* configure: Likewise.
From-SVN: r143169
Diffstat (limited to 'libstdc++-v3/acinclude.m4')
| -rw-r--r-- | libstdc++-v3/acinclude.m4 | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/libstdc++-v3/acinclude.m4 b/libstdc++-v3/acinclude.m4 index d7e93a83406..71cc7e9bc80 100644 --- a/libstdc++-v3/acinclude.m4 +++ b/libstdc++-v3/acinclude.m4 @@ -2819,6 +2819,16 @@ if test x$enable_symvers != xno ; then [Define to use symbol versioning in the shared library.]) fi +AC_CACHE_CHECK([whether the target supports .symver directive], + glibcxx_cv_have_as_symver_directive, [ + AC_TRY_COMPILE([void foo (void); __asm (".symver foo, bar@SYMVER");], + [], glibcxx_cv_have_as_symver_directive=yes, + glibcxx_cv_have_as_symver_directive=no)]) +if test $glibcxx_cv_have_as_symver_directive = yes; then + AC_DEFINE(HAVE_AS_SYMVER_DIRECTIVE, 1, + [Define to 1 if the target assembler supports .symver directive.]) +fi + AC_SUBST(SYMVER_FILE) AC_SUBST(port_specific_symbol_files) GLIBCXX_CONDITIONAL(ENABLE_SYMVERS, test $enable_symvers != no) |