Move locking specific functions into their own source file

include/locking.h

@@ -0,0 +1,28 @@
+/**
+ * Author......: Jens Steube <jens.steube@gmail.com>
+ * License.....: MIT
+ */
+
+#ifndef _LOCKING_H
+#define _LOCKING_H
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <errno.h>
+#include <fcntl.h>
+
+#ifdef F_SETLKW
+
+void lock_file   (FILE *fp);
+void unlock_file (FILE *fp);
+
+#else
+
+#define lock_file(dummy) {}
+#define unlock_file(dummy) {}
+
+#endif
+
+#endif // _LOCKING_H

include/shared.h

@@ -25,6 +25,7 @@
 #include <dlfcn.h>
 #include <pwd.h>
 #include <limits.h>
+#include <sys/types.h>
 #include <sys/ioctl.h>
 #include <sys/sysctl.h>
 #endif // _POSIX
@@ -187,13 +188,6 @@ char *stroptitype (const uint opti_type);
 char *strstatus (const uint threads_status);
 void status ();
 
-#ifdef F_SETLKW
-void lock_file (FILE *fp);
-void unlock_file (FILE *fp);
-#else
-#define lock_file(dummy) {}
-#define unlock_file(dummy) {}
-#endif
 
 #ifdef _WIN
 void fsync (int fd);