Fix compile on Linux.

src/rc/rc-misc.c

@@ -235,42 +235,6 @@ char **env_filter (void)
 	return (env);
 }
 
-/* Other systems may need this at some point, but for now it's Linux only */
-#ifdef __linux__
-static bool file_regex (const char *file, const char *regex)
-{
-	FILE *fp;
-	char *line;
-	regex_t re;
-	bool retval = false;
-	int result;
-
-	if (! (fp = fopen (file, "r")))
-		return (false);
-
-	if ((result = regcomp (&re, regex, REG_EXTENDED | REG_NOSUB)) != 0) {
-		fclose (fp);
-		line = xmalloc (sizeof (char) * BUFSIZ);
-		regerror (result, &re, line, BUFSIZ);
-		fprintf (stderr, "file_regex: %s", line);
-		free (line);
-		return (false);
-	}
-
-	while ((line = rc_getline (fp))) {
-		if (regexec (&re, line, 0, NULL, 0) == 0)
-			retval = true;
-		free (line);
-		if (retval)
-			break;
-	}
-	fclose (fp);
-	regfree (&re);
-
-	return (retval);
-}
-#endif
-
 char **env_config (void)
 {
 	char **env = NULL;