$NetBSD: patch-ar,v 1.3 2015/02/19 22:25:12 joerg Exp $

When this file was written, C90 was already two years old.
No excuse to not use system headers.

--- bcc/proto.h.orig	1992-11-14 15:12:34.000000000 +0000
+++ bcc/proto.h
@@ -370,30 +370,7 @@ struct typestruct *tounsigned P((struct 
 void typeinit P((void));
 
 /* library - fcntl.h */
-int creat P((const char *_path, int _mode));
-int open P((const char *_path, int _oflag, ...));
-
-/* library - stdlib.h */
-double atof P((const char *_str));
-void exit P((int _status));
-void free P((void *_ptr));
-void *malloc P((unsigned _nbytes));
-void *realloc P((void *_ptr, unsigned _nbytes));
-
-/* library - string.h */
-void *memcpy P((void *_t, const void *_s, unsigned _length));
-void *memset P((void *_s, int _c, unsigned _nbytes));
-char *strcat P((char *_target, const char *_source));
-char *strchr P((const char *_s, int _ch));
-int strcmp P((const char *_s1, const char *_s2));
-char *strcpy P((char *_target, const char *_source));
-unsigned strlen P((const char *_s));
-char *strncpy P((char *_target, const char *_source, unsigned _maxlength));
-char *strrchr P((const char *_s, int _ch));
-
-/* library - unistd.h */
-int close P((int _fd));
-int isatty P((int _fd));
-long lseek P((int _fd, long _offset, int _whence));
-int read P((int _fd, char *_buf, unsigned _nbytes));
-int write P((int _fd, char *_buf, unsigned _nbytes));
+#include <fcntl.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>