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Diffstat (limited to 'libc/sysdeps/linux/common/sigaltstack.c')
-rw-r--r--libc/sysdeps/linux/common/sigaltstack.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/libc/sysdeps/linux/common/sigaltstack.c b/libc/sysdeps/linux/common/sigaltstack.c
index 624c87792..0c9308408 100644
--- a/libc/sysdeps/linux/common/sigaltstack.c
+++ b/libc/sysdeps/linux/common/sigaltstack.c
@@ -10,7 +10,8 @@
#include <sys/syscall.h>
#include <signal.h>
-#ifdef __NR_sigaltstack
+#if defined __NR_sigaltstack && (defined __USE_BSD || defined __USE_UNIX98)
+
_syscall2(int, sigaltstack, const struct sigaltstack *, ss,
struct sigaltstack *, oss);
#endif