diff options
| author | jb <jb@138bc75d-0d04-0410-961f-82ee72b054a4> | 2007-04-24 09:08:52 +0000 |
|---|---|---|
| committer | jb <jb@138bc75d-0d04-0410-961f-82ee72b054a4> | 2007-04-24 09:08:52 +0000 |
| commit | ce1a737c5d8541db078a16891f5d9c60f9747bb6 (patch) | |
| tree | ed8f6448a70614d0a12e305b74ca617397231177 /libgfortran/configure.ac | |
| parent | 095798e3c7fc33fce0e1ca8c05a10d89428dc6bd (diff) | |
| download | gcc-ce1a737c5d8541db078a16891f5d9c60f9747bb6.tar.gz | |
2007-04-24 Janne Blomqvist <jb@gcc.gnu.org>
PR fortran/27740
* configure.ac: New test to determine if symbol versioning is
supported.
* Makefile.am: Use result of above test to add appropriate linker
flags.
* gfortran.map: New file.
* configure: Regenerated.
* Makefile.in: Regenerated.
* config.h.in: Regenerated.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@124098 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'libgfortran/configure.ac')
| -rw-r--r-- | libgfortran/configure.ac | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/libgfortran/configure.ac b/libgfortran/configure.ac index 319b5549da8..58839bbcba0 100644 --- a/libgfortran/configure.ac +++ b/libgfortran/configure.ac @@ -122,6 +122,20 @@ fi AC_SUBST(AM_FCFLAGS) AC_SUBST(AM_CFLAGS) +# Check for symbol versioning (copied from libssp). +AC_MSG_CHECKING([whether symbol versioning is supported]) +cat > conftest.map <<EOF +FOO_1.0 { + global: *foo*; bar; local: *; +}; +EOF +save_LDFLAGS="$LDFLAGS" +LDFLAGS="$LDFLAGS -fPIC -shared -Wl,--version-script,./conftest.map" +AC_TRY_LINK([int foo;],[],[gfortran_use_symver=yes],[gfortran_use_symver=no]) +LDFLAGS="$save_LDFLAGS" +AC_MSG_RESULT($gfortran_use_symver) +AM_CONDITIONAL(LIBGFOR_USE_SYMVER, [test "x$gfortran_use_symver" = xyes]) + # Find other programs we need. AC_CHECK_TOOL(AS, as) AC_CHECK_TOOL(AR, ar) |