need features.h for the alias macros

diff --git a/libc/sysdeps/linux/sparc/vfork.S b/libc/sysdeps/linux/sparc/vfork.S
index 9b7092c..ad6b97e 100644 (file)
--- a/libc/sysdeps/linux/sparc/vfork.S
+++ b/libc/sysdeps/linux/sparc/vfork.S
@@ -19,6 +19,7 @@
 
 /* Code taken from glibc2.2.2/sysdeps/unix/sysv/linux/sparc/vfork.S */
 
+#include <features.h>
 #include <sys/syscall.h>
 
 #ifndef __NR_vfork