diff options
Diffstat (limited to 'libgomp')
| -rw-r--r-- | libgomp/configure.tgt | 35 |
1 files changed, 15 insertions, 20 deletions
diff --git a/libgomp/configure.tgt b/libgomp/configure.tgt index 1863287f..be06be0 100644 --- a/libgomp/configure.tgt +++ b/libgomp/configure.tgt @@ -73,28 +73,23 @@ if test x$enable_linux_futex = xyes; then ;; # Note that bare i386 is not included here. We need cmpxchg. - i[456]86-*-linux*) + i[456]86-*-linux* | x86_64-*-linux*) config_path="linux/x86 linux posix" - case " ${CC} ${CFLAGS} " in - *" -m64 "*|*" -mx32 "*) - ;; - *) - if test -z "$with_arch"; then - XCFLAGS="${XCFLAGS} -march=i486 -mtune=${target_cpu}" - fi - esac - ;; - - # Similar jiggery-pokery for x86_64 multilibs, except here we - # can't rely on the --with-arch configure option, since that - # applies to the 64-bit side. - x86_64-*-linux*) - config_path="linux/x86 linux posix" - case " ${CC} ${CFLAGS} " in - *" -m32 "*) + cat > conftestx.c <<EOF +#ifndef __GCC_HAVE_SYNC_COMPARE_AND_SWAP_4 +#error need -march=i486 +#endif +EOF + if ${CC} ${CFLAGS} -E conftestx.c > /dev/null 2>&1; then + : + else + if test "${target_cpu}" = x86_64; then XCFLAGS="${XCFLAGS} -march=i486 -mtune=generic" - ;; - esac + else + XCFLAGS="${XCFLAGS} -march=i486 -mtune=${target_cpu}" + fi + fi + rm -f conftestx.c ;; # Note that sparcv7 and sparcv8 is not included here. We need cas. |