fix preprocessor error introduced in poll.h in last commit

[musl] / include / features.h

diff --git a/include/features.h b/include/features.h
index 294c61d..3cc3e57 100644 (file)
--- a/include/features.h
+++ b/include/features.h
@@ -1,10 +1,14 @@
 #ifndef _FEATURES_H
 #define _FEATURES_H
 
-#ifdef _ALL_SOURCE
+#if defined(_ALL_SOURCE) && !defined(_GNU_SOURCE)
 #define _GNU_SOURCE 1
 #endif
 
+#if defined(_DEFAULT_SOURCE) && !defined(_BSD_SOURCE)
+#define _BSD_SOURCE 1
+#endif
+
 #if !defined(_POSIX_SOURCE) && !defined(_POSIX_C_SOURCE) \
  && !defined(_XOPEN_SOURCE) && !defined(_GNU_SOURCE) \
  && !defined(_BSD_SOURCE) && !defined(__STRICT_ANSI__)