From 5e3a0f418c4d57399778cee0b55aebfb663b6425 Mon Sep 17 00:00:00 2001 From: Stefan Weil Date: Fri, 29 Mar 2013 18:20:20 +0100 Subject: w32: Fix build with older gcc (unresolved symbol) The cross i586-mingw32msvc-gcc 4.4.4 from Debian Squeeze does not support __sync_val_compare_and_swap by default. Using -march=i686 fixes that and should also result in better code. Signed-off-by: Stefan Weil Signed-off-by: Blue Swirl --- configure | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/configure b/configure index f2af714928..70c2219dd6 100755 --- a/configure +++ b/configure @@ -562,6 +562,11 @@ 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; } -- cgit v1.2.3