diff options
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac index 74a44de6..b1e8ea9f 100644 --- a/configure.ac +++ b/configure.ac @@ -287,7 +287,28 @@ AM_CONDITIONAL(WITH_GLIBSRC, test x"$GLIBSRC" != x) AC_SUBST(GLIBSRC) AC_MSG_RESULT([$GLIBSRC]) +dnl +dnl Check for -Bsymbolic-functions linker flag used to avoid +dnl intra-library PLT jumps, if available. +dnl +AC_ARG_ENABLE(Bsymbolic, + [AS_HELP_STRING([--disable-Bsymbolic], + [avoid linking with -Bsymbolic])],, + [SAVED_LDFLAGS="${LDFLAGS}" + AC_MSG_CHECKING([for -Bsymbolic-functions linker flag]) + LDFLAGS=-Wl,-Bsymbolic-functions + AC_TRY_LINK([], [int main (void) { return 0; }], + AC_MSG_RESULT(yes) + enable_Bsymbolic=yes, + AC_MSG_RESULT(no) + enable_Bsymbolic=no) + LDFLAGS="${SAVED_LDFLAGS}"]) + +if test "x${enable_Bsymbolic}" = "xyes"; then + EXTRA_LINK_FLAGS=-Wl,-Bsymbolic-functions +fi +AC_SUBST(EXTRA_LINK_FLAGS) AC_CONFIG_FILES([ Makefile |