--- etags.c	2017-01-04 18:32:12.110527356 -0800
+++ etags.c2	2017-01-04 18:53:39.689974623 -0800
@@ -80,2 +80,18 @@ University of California, as described a
 
+#define ATTRIBUTE_CONST	__attribute__((const))
+#define ATTRIBUTE_FORMAT_PRINTF(x,y)	__attribute__((format(printf,x,y)))
+#define COPYRIGHT	"I PREFER VIM"
+#define FOPEN_BINARY	"b"
+#define SET_BINARY(fd)
+#define c_isalnum	isalnum
+#define c_isalpha	isalpha
+#define c_isdigit	isdigit
+#define c_islower	islower
+#define c_isspace	isspace
+#define c_isupper	isupper
+#define c_strcasecmp	strcasecmp
+#define c_strncasecmp	strncasecmp
+#define c_tolower	tolower
+#define ptrdiff_t	__PTRDIFF_TYPE__
+
 char pot_etags_version[] = "@(#) pot revision number is 17.38.1.4";
@@ -90,3 +106,5 @@ char pot_etags_version[] = "@(#) pot rev
 
-#include <config.h>
+#ifndef _GNU_SOURCE
+# define _GNU_SOURCE 1		/* enables some compiler checks on GNU */
+#endif
 
@@ -116,2 +134,3 @@ char pot_etags_version[] = "@(#) pot rev
 
+#include <ctype.h>
 #include <limits.h>
@@ -119,10 +138,8 @@ char pot_etags_version[] = "@(#) pot rev
 #include <stdarg.h>
+#include <stdbool.h>
 #include <stdlib.h>
 #include <string.h>
-#include <sysstdio.h>
+#include <stdio.h>
 #include <errno.h>
 #include <fcntl.h>
-#include <binary-io.h>
-#include <c-ctype.h>
-#include <c-strcase.h>