diff options
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 78 |
1 files changed, 40 insertions, 38 deletions
diff --git a/configure.ac b/configure.ac index 9bc9ff1..0e3ddb5 100644 --- a/configure.ac +++ b/configure.ac @@ -2,7 +2,7 @@ dnl Process this with autoconf to create configure AC_PREREQ(2.63) -AC_INIT([libffi], [3.0.10rc6], [http://sourceware.org/libffi.html]) +AC_INIT([libffi], [3.0.10rc7], [http://sourceware.org/libffi.html]) AC_CONFIG_HEADERS([fficonfig.h]) AC_CANONICAL_SYSTEM @@ -369,44 +369,46 @@ if test x$TARGET = xX86_64; then fi fi -AC_CACHE_CHECK([whether .eh_frame section should be read-only], - libffi_cv_ro_eh_frame, [ - libffi_cv_ro_eh_frame=no - echo 'extern void foo (void); void bar (void) { foo (); foo (); }' > conftest.c - if $CC $CFLAGS -S -fpic -fexceptions -o conftest.s conftest.c > /dev/null 2>&1; then - if grep '.section.*eh_frame.*"a"' conftest.s > /dev/null; then - libffi_cv_ro_eh_frame=yes - elif grep '.section.*eh_frame.*#alloc' conftest.c \ - | grep -v '#write' > /dev/null; then - libffi_cv_ro_eh_frame=yes - fi - fi - rm -f conftest.* - ]) -if test "x$libffi_cv_ro_eh_frame" = xyes; then - AC_DEFINE(HAVE_RO_EH_FRAME, 1, - [Define if .eh_frame sections should be read-only.]) - AC_DEFINE(EH_FRAME_FLAGS, "a", - [Define to the flags needed for the .section .eh_frame directive.]) -else - AC_DEFINE(EH_FRAME_FLAGS, "aw", - [Define to the flags needed for the .section .eh_frame directive.]) -fi +if test "x$GCC" = "xyes"; then + AC_CACHE_CHECK([whether .eh_frame section should be read-only], + libffi_cv_ro_eh_frame, [ + libffi_cv_ro_eh_frame=no + echo 'extern void foo (void); void bar (void) { foo (); foo (); }' > conftest.c + if $CC $CFLAGS -S -fpic -fexceptions -o conftest.s conftest.c > /dev/null 2>&1; then + if grep '.section.*eh_frame.*"a"' conftest.s > /dev/null; then + libffi_cv_ro_eh_frame=yes + elif grep '.section.*eh_frame.*#alloc' conftest.c \ + | grep -v '#write' > /dev/null; then + libffi_cv_ro_eh_frame=yes + fi + fi + rm -f conftest.* + ]) + if test "x$libffi_cv_ro_eh_frame" = xyes; then + AC_DEFINE(HAVE_RO_EH_FRAME, 1, + [Define if .eh_frame sections should be read-only.]) + AC_DEFINE(EH_FRAME_FLAGS, "a", + [Define to the flags needed for the .section .eh_frame directive. ]) + else + AC_DEFINE(EH_FRAME_FLAGS, "aw", + [Define to the flags needed for the .section .eh_frame directive. ]) + fi -AC_CACHE_CHECK([for __attribute__((visibility("hidden")))], - libffi_cv_hidden_visibility_attribute, [ - echo 'int __attribute__ ((visibility ("hidden"))) foo (void) { return 1; }' > conftest.c - libffi_cv_hidden_visibility_attribute=no - if AC_TRY_COMMAND(${CC-cc} -Werror -S conftest.c -o conftest.s 1>&AS_MESSAGE_LOG_FD); then - if grep '\.hidden.*foo' conftest.s >/dev/null; then - libffi_cv_hidden_visibility_attribute=yes - fi - fi - rm -f conftest.* - ]) -if test $libffi_cv_hidden_visibility_attribute = yes; then - AC_DEFINE(HAVE_HIDDEN_VISIBILITY_ATTRIBUTE, 1, - [Define if __attribute__((visibility("hidden"))) is supported.]) + AC_CACHE_CHECK([for __attribute__((visibility("hidden")))], + libffi_cv_hidden_visibility_attribute, [ + echo 'int __attribute__ ((visibility ("hidden"))) foo (void) { return 1 ; }' > conftest.c + libffi_cv_hidden_visibility_attribute=no + if AC_TRY_COMMAND(${CC-cc} -Werror -S conftest.c -o conftest.s 1>&AS_MESSAGE_LOG_FD); then + if grep '\.hidden.*foo' conftest.s >/dev/null; then + libffi_cv_hidden_visibility_attribute=yes + fi + fi + rm -f conftest.* + ]) + if test $libffi_cv_hidden_visibility_attribute = yes; then + AC_DEFINE(HAVE_HIDDEN_VISIBILITY_ATTRIBUTE, 1, + [Define if __attribute__((visibility("hidden"))) is supported.]) + fi fi AH_BOTTOM([ |