From: Bruno Haible <bruno@clisp.org>
Date: Sat, 27 Sep 2008 17:13:21 +0000 (+0200)
Subject: Avoid assigning WCHAR_H in different .m4 files.
X-Git-Tag: v0.1~6983
X-Git-Url: http://erislabs.org.uk/gitweb/?a=commitdiff_plain;h=d62d8d02e05ea9688cc1c5c83c80c7c9c084ea9a;p=gnulib.git

Avoid assigning WCHAR_H in different .m4 files.
---

diff --git a/ChangeLog b/ChangeLog
index fe42fd870..e1ff9b023 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,11 @@
 2008-09-27  Bruno Haible  <bruno@clisp.org>
 
+	* m4/wchar.m4 (gl_REPLACE_WCHAR_H): New macro.
+	* m4/wcwidth.m4 (gl_FUNC_WCWIDTH): Invoke it instead of assigning
+	WCHAR_H directly.
+
+2008-09-27  Bruno Haible  <bruno@clisp.org>
+
 	* lib/arpa_inet.in.h: Include the GL_LINK_WARNING anchor.
 	* modules/arpa_inet (Depends-on): Add link-warning.
 	(Makefile.am): Insert the definition of GL_LINK-WARNING.
diff --git a/m4/wchar.m4 b/m4/wchar.m4
index c1ed2c6d3..5c923fa0e 100644
--- a/m4/wchar.m4
+++ b/m4/wchar.m4
@@ -7,7 +7,7 @@ dnl with or without modifications, as long as this notice is preserved.
 
 dnl Written by Eric Blake.
 
-# wchar.m4 serial 5
+# wchar.m4 serial 6
 
 AC_DEFUN([gl_WCHAR_H],
 [
@@ -45,6 +45,13 @@ wchar_t w;]],
   gl_CHECK_NEXT_HEADERS([wchar.h])
 ])
 
+dnl Unconditionally enables the replacement of <wchar.h>.
+AC_DEFUN([gl_REPLACE_WCHAR_H],
+[
+  AC_REQUIRE([gl_WCHAR_H_DEFAULTS])
+  WCHAR_H=wchar.h
+])
+
 AC_DEFUN([gl_WCHAR_MODULE_INDICATOR],
 [
   dnl Use AC_REQUIRE here, so that the default settings are expanded once only.
@@ -58,6 +65,5 @@ AC_DEFUN([gl_WCHAR_H_DEFAULTS],
   dnl Assume proper GNU behavior unless another module says otherwise.
   HAVE_DECL_WCWIDTH=1; AC_SUBST([HAVE_DECL_WCWIDTH])
   REPLACE_WCWIDTH=0;   AC_SUBST([REPLACE_WCWIDTH])
-  WCHAR_H=
-  AC_SUBST([WCHAR_H])
+  WCHAR_H='';          AC_SUBST([WCHAR_H])
 ])
diff --git a/m4/wcwidth.m4 b/m4/wcwidth.m4
index 04a9fc270..4bedefae6 100644
--- a/m4/wcwidth.m4
+++ b/m4/wcwidth.m4
@@ -1,5 +1,5 @@
-# wcwidth.m4 serial 13
-dnl Copyright (C) 2006, 2007 Free Software Foundation, Inc.
+# wcwidth.m4 serial 14
+dnl Copyright (C) 2006-2008 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -80,6 +80,6 @@ int main ()
   fi
 
   if test $REPLACE_WCWIDTH = 1 || test $HAVE_DECL_WCWIDTH = 0; then
-    WCHAR_H=wchar.h
+    gl_REPLACE_WCHAR_H
   fi
 ])