1 --- a/libc/sysdeps/linux/avr32/bits/atomic.h
2 +++ b/libc/sysdeps/linux/avr32/bits/atomic.h
3 @@ -28,6 +28,7 @@ typedef uintmax_t uatomic_max_t;
5 #define __arch_compare_and_exchange_val_32_acq(mem, newval, oldval) \
7 + __uint32_t __result; \
8 __typeof__(*(mem)) __prev; \
9 __asm__ __volatile__( \
10 "/* __arch_compare_and_exchange_val_32_acq */\n" \