default features: make musl usable without feature test macros

[musl] / include / sys / ipc.h

diff --git a/include/sys/ipc.h b/include/sys/ipc.h
index 8e2f717..3f896b8 100644 (file)
--- a/include/sys/ipc.h
+++ b/include/sys/ipc.h
@@ -4,6 +4,8 @@
 extern "C" {
 #endif
 
+#include <features.h>
+
 #define __NEED_uid_t
 #define __NEED_gid_t
 #define __NEED_mode_t