diff options
Diffstat (limited to 'configure')
| -rwxr-xr-x | configure | 56 |
1 files changed, 26 insertions, 30 deletions
@@ -574,11 +574,6 @@ if test "$mingw32" = "yes" ; then QEMU_CFLAGS="-DWIN32_LEAN_AND_MEAN -DWINVER=0x501 $QEMU_CFLAGS" # enable C99/POSIX format strings (needs mingw32-runtime 3.15 or later) QEMU_CFLAGS="-D__USE_MINGW_ANSI_STDIO=1 $QEMU_CFLAGS" - if test "$cpu" = "i386"; then - # We need something better than i386 for __sync_val_compare_and_swap - # and can expect that QEMU will only run on i686 or later. - QEMU_CFLAGS="-march=i686 $QEMU_CFLAGS" - fi LIBS="-lwinmm -lws2_32 -liphlpapi $LIBS" cat > $TMPC << EOF int main(void) { return 0; } @@ -1326,9 +1321,33 @@ EOF fi fi -# +########################################## +# __sync_fetch_and_and requires at least -march=i486. Many toolchains +# use i686 as default anyway, but for those that don't, an explicit +# specification is necessary + +if test "$cpu" = "i386"; then + cat > $TMPC << EOF +static int sfaa(int *ptr) +{ + return __sync_fetch_and_and(ptr, 0); +} + +int main(void) +{ + int val = 42; + sfaa(&val); + return val; +} +EOF + if ! compile_prog "" "" ; then + QEMU_CFLAGS="-march=i486 $QEMU_CFLAGS" + fi +fi + +######################################### # Solaris specific configure tool chain decisions -# + if test "$solaris" = "yes" ; then if has $install; then : @@ -3169,29 +3188,6 @@ if test "$trace_backend" = "dtrace"; then fi ########################################## -# __sync_fetch_and_and requires at least -march=i486. Many toolchains -# use i686 as default anyway, but for those that don't, an explicit -# specification is necessary -if test "$vhost_net" = "yes" && test "$cpu" = "i386"; then - cat > $TMPC << EOF -static int sfaa(int *ptr) -{ - return __sync_fetch_and_and(ptr, 0); -} - -int main(void) -{ - int val = 42; - sfaa(&val); - return val; -} -EOF - if ! compile_prog "" "" ; then - QEMU_CFLAGS="-march=i486 $QEMU_CFLAGS" - fi -fi - -########################################## # check and set a backend for coroutine # We prefer ucontext, but it's not always possible. The fallback |