diff options
Diffstat (limited to 'gcc-4.9/lto-plugin/configure.ac')
| -rw-r--r-- | gcc-4.9/lto-plugin/configure.ac | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/gcc-4.9/lto-plugin/configure.ac b/gcc-4.9/lto-plugin/configure.ac index 4003ae61b..a5f1774df 100644 --- a/gcc-4.9/lto-plugin/configure.ac +++ b/gcc-4.9/lto-plugin/configure.ac @@ -7,9 +7,21 @@ AM_MAINTAINER_MODE AC_PROG_CC AC_SYS_LARGEFILE ACX_PROG_CC_WARNING_OPTS([-Wall], [ac_lto_plugin_warn_cflags]) + +# Check whether -static-libgcc is supported. +saved_LDFLAGS="$LDFLAGS" +LDFLAGS="$LDFLAGS -static-libgcc" +AC_MSG_CHECKING([for -static-libgcc]) +AC_LINK_IFELSE([ + int main() {}], [have_static_libgcc=yes], [have_static_libgcc=no]) +AC_MSG_RESULT($have_static_libgcc); +LDFLAGS="$saved_LDFLAGS" # Need -Wc to get it through libtool. -if test "x$GCC" = xyes; then ac_lto_plugin_ldflags="-Wc,-static-libgcc"; fi +if test "x$have_static_libgcc" = xyes; then + ac_lto_plugin_ldflags="-Wc,-static-libgcc" +fi AC_SUBST(ac_lto_plugin_ldflags) + AM_PROG_LIBTOOL ACX_LT_HOST_FLAGS AC_SUBST(target_noncanonical) |