diff options
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) |