remove useless "extern" keywords in headers

[musl] / include / sys / file.h

diff --git a/include/sys/file.h b/include/sys/file.h
index 8b2eb01..adb9dd5 100644 (file)
--- a/include/sys/file.h
+++ b/include/sys/file.h
@@ -11,7 +11,7 @@ extern "C" {
 #define LOCK_NB        4
 #define LOCK_UN        8
 
-extern int flock(int, int);
+int flock(int, int);
 
 #endif