merge with 1.11.5

[gnulib.git] / regex.c

diff --git a/regex.c b/regex.c
index a3f601b..2ccabc1 100644 (file)
--- a/regex.c
+++ b/regex.c
@@ -3,7 +3,7 @@
    (Implements POSIX draft P10003.2/D11.2, except for
    internationalization features.)
 
-   Copyright (C) 1993, 1994 Free Software Foundation, Inc.
+   Copyright (C) 1993, 1994, 1995 Free Software Foundation, Inc.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -33,9 +33,8 @@
 /* We need this for `regex.h', and perhaps for the Emacs include files.  */
 #include <sys/types.h>
 
-/* This is for other GNU distributions with internationalized messages.
-   The GNU C Library itself does not yet support such messages.  */
-#if HAVE_LIBINTL_H
+/* This is for other GNU distributions with internationalized messages.  */
+#if HAVE_LIBINTL_H || defined (_LIBC)
 # include <libintl.h>
 #else
 # define gettext(msgid) (msgid)
@@ -56,7 +55,7 @@
    even if config.h says that we can.  */
 #undef REL_ALLOC
 
-#ifdef STDC_HEADERS
+#if defined (STDC_HEADERS) || defined (_LIBC)
 #include <stdlib.h>
 #else
 char *malloc ();
@@ -66,7 +65,7 @@ char *realloc ();
 /* We used to test for `BSTRING' here, but only GCC and Emacs define
    `BSTRING', as far as I know, and neither of them use this code.  */
 #ifndef INHIBIT_STRING_HEADER
-#if HAVE_STRING_H || STDC_HEADERS
+#if HAVE_STRING_H || STDC_HEADERS || defined (_LIBC)
 #include <string.h>
 #ifndef bcmp
 #define bcmp(s1, s2, n)        memcmp ((s1), (s2), (n))
@@ -184,7 +183,7 @@ init_syntax_once ()
 #define ISXDIGIT(c) (ISASCII (c) && isxdigit (c))
 
 #ifndef NULL
-#define NULL 0
+#define NULL (void *)0
 #endif
 
 /* We remove any previous definition of `SIGN_EXTEND_CHAR',
@@ -244,7 +243,7 @@ char *alloca ();
    destination)
 
 /* No need to do anything to free, after alloca.  */
-#define REGEX_FREE(arg) (0)
+#define REGEX_FREE(arg) ((void)0) /* Do nothing!  But inhibit gcc warning.  */
 
 #endif /* not REGEX_MALLOC */
 
@@ -2757,7 +2756,7 @@ at_endline_loc_p (p, pend, syntax)
 {
   const char *next = p;
   boolean next_backslash = *next == '\\';
-  const char *next_next = p + 1 < pend ? p + 1 : NULL;
+  const char *next_next = p + 1 < pend ? p + 1 : 0;
   
   return
        /* Before a subexpression?  */
@@ -3416,7 +3415,7 @@ static boolean alt_match_null_string_p (),
     FREE_VAR (reg_info_dummy);                                         \
   } while (0)
 #else
-#define FREE_VARIABLES() /* Do nothing!  */
+#define FREE_VARIABLES() ((void)0) /* Do nothing!  But inhibit gcc warning.  */
 #endif /* not MATCH_MAY_ALLOCATE */
 
 /* These values must meet several constraints.  They must not be valid