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-rw-r--r--libc/sysdeps/linux/common/fork.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/common/fork.c b/libc/sysdeps/linux/common/fork.c
index 9f87ea4e2..e766799c0 100644
--- a/libc/sysdeps/linux/common/fork.c
+++ b/libc/sysdeps/linux/common/fork.c
@@ -11,7 +11,9 @@
#include <unistd.h>
#ifdef __ARCH_HAS_MMU__
+#ifdef __NR_fork
#define __NR___libc_fork __NR_fork
_syscall0(pid_t, __libc_fork);
weak_alias(__libc_fork, fork);
#endif
+#endif