default features: make musl usable without feature test macros

[musl] / include / grp.h

diff --git a/include/grp.h b/include/grp.h
index 0a55c62..030d7f8 100644 (file)
--- a/include/grp.h
+++ b/include/grp.h
@@ -5,6 +5,8 @@
 extern "C" {
 #endif
 
+#include <features.h>
+
 #define __NEED_size_t
 #define __NEED_gid_t