diff options
| -rw-r--r-- | qemu-barrier.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/qemu-barrier.h b/qemu-barrier.h index 7e11197814..16f09429c3 100644 --- a/qemu-barrier.h +++ b/qemu-barrier.h @@ -19,7 +19,7 @@ * mfence on 32 bit as well, e.g. if built with -march=pentium-m. * However, on i386, there seem to be known bugs as recently as 4.3. * */ -#if defined(__GNUC__) && __GNUC__ >= 4 && __GNUC_MINOR__ >= 4 +#if QEMU_GNUC_PREREQ(4, 4) #define smp_mb() __sync_synchronize() #else #define smp_mb() asm volatile("lock; addl $0,0(%%esp) " ::: "memory") |