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| author | ian <ian@138bc75d-0d04-0410-961f-82ee72b054a4> | 2014-10-15 15:32:41 +0000 |
|---|---|---|
| committer | ian <ian@138bc75d-0d04-0410-961f-82ee72b054a4> | 2014-10-15 15:32:41 +0000 |
| commit | 3a4c5379799b896220ac84e917f3eb5a5e5f61de (patch) | |
| tree | bdc1d44318ce5627cb6a73b6ef6d9337cf792b1d /libffi/configure.ac | |
| parent | 5df43a998372f91f936c0f49d96dc268e7f80e4d (diff) | |
| download | gcc-3a4c5379799b896220ac84e917f3eb5a5e5f61de.tar.gz | |
* configure.ac: If the compiler supports -Qunused-arguments, use
it when running the compiler on .s files.
* configure: Regenerated.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@216268 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'libffi/configure.ac')
| -rw-r--r-- | libffi/configure.ac | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/libffi/configure.ac b/libffi/configure.ac index a08feaa0381..97d2641b0c9 100644 --- a/libffi/configure.ac +++ b/libffi/configure.ac @@ -295,6 +295,15 @@ AC_C_BIGENDIAN GCC_AS_CFI_PSEUDO_OP +AC_CACHE_CHECK([if compiler supports -Qunused-arguments], +[libffi_cv_c_unused_arguments], +[CFLAGS_hold=$CFLAGS +CFLAGS="$CFLAGS -Qunused-arguments" +AC_COMPILE_IFELSE([[int i;]], +[libffi_cv_c_unused_arguments=yes], +[libffi_cv_c_unused_arguments=no]) +CFLAGS=$CFLAGS_hold]) + if test x$TARGET = xSPARC; then AC_CACHE_CHECK([assembler and linker support unaligned pc related relocs], libffi_cv_as_sparc_ua_pcrel, [ @@ -331,9 +340,14 @@ if test x$TARGET = xX86 || test x$TARGET = xX86_WIN32 || test x$TARGET = xX86_64 libffi_cv_as_x86_pcrel, [ libffi_cv_as_x86_pcrel=yes echo '.text; foo: nop; .data; .long foo-.; .text' > conftest.s + CFLAGS_hold=$CFLAGS + if test "$libffi_cv_c_unused_arguments" = yes; then + CFLAGS="$CFLAGS -Qunused-arguments" + fi if $CC $CFLAGS -c conftest.s 2>&1 | $EGREP -i 'illegal|warning' > /dev/null; then libffi_cv_as_x86_pcrel=no fi + CFLAGS=$CFLAGS_hold ]) if test "x$libffi_cv_as_x86_pcrel" = xyes; then AC_DEFINE(HAVE_AS_X86_PCREL, 1, @@ -397,9 +411,14 @@ if test x$TARGET = xX86_64; then libffi_cv_as_x86_64_unwind_section_type, [ libffi_cv_as_x86_64_unwind_section_type=yes echo '.section .eh_frame,"a",@unwind' > conftest.s + CFLAGS_hold=$CFLAGS + if test "$libffi_cv_c_unused_arguments" = yes; then + CFLAGS="$CFLAGS -Qunused-arguments" + fi if $CC $CFLAGS -c conftest.s 2>&1 | grep -i warning > /dev/null; then libffi_cv_as_x86_64_unwind_section_type=no fi + CFLAGS=$CFLAGS_hold ]) if test "x$libffi_cv_as_x86_64_unwind_section_type" = xyes; then AC_DEFINE(HAVE_AS_X86_64_UNWIND_SECTION_TYPE, 1, |