move nonstandard gamma() etc. to _GNU_SOURCE only

[musl] / include / sys / uio.h

diff --git a/include/sys/uio.h b/include/sys/uio.h
index 7b068c0..f77db33 100644 (file)
--- a/include/sys/uio.h
+++ b/include/sys/uio.h
@@ -1,14 +1,21 @@
 #ifndef _SYS_UIO_H
 #define _SYS_UIO_H
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #define __NEED_size_t
 #define __NEED_ssize_t
+#define __NEED_struct_iovec
 
 #include <bits/alltypes.h>
 
-#include <bits/uio.h>
-
 ssize_t readv (int, const struct iovec *, int);
 ssize_t writev (int, const struct iovec *, int);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif