X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=m4%2Fwcwidth.m4;h=acceba5477ce7f1cb271896edade66821a36866b;hb=8924d470065e554cb4532df49ba159ffdf8c1b32;hp=9cacb56fdfe906f8e56c49f396f9bd9a07e15e37;hpb=feb2268308fe0aa483e9614c714cd66480ba033e;p=gnulib.git

diff --git a/m4/wcwidth.m4 b/m4/wcwidth.m4
index 9cacb56fd..acceba547 100644
--- a/m4/wcwidth.m4
+++ b/m4/wcwidth.m4
@@ -1,5 +1,5 @@
-# wcwidth.m4 serial 15
-dnl Copyright (C) 2006-2009 Free Software Foundation, Inc.
+# wcwidth.m4 serial 16
+dnl Copyright (C) 2006-2010 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.
@@ -34,9 +34,7 @@ AC_DEFUN([gl_FUNC_WCWIDTH],
     HAVE_DECL_WCWIDTH=0
   fi
 
-  if test $ac_cv_func_wcwidth = no; then
-    REPLACE_WCWIDTH=1
-  else
+  if test $ac_cv_func_wcwidth = yes; then
     dnl On MacOS X 10.3, wcwidth(0x0301) (COMBINING ACUTE ACCENT) returns 1.
     dnl On OSF/1 5.1, wcwidth(0x200B) (ZERO WIDTH SPACE) returns 1.
     dnl This leads to bugs in 'ls' (coreutils).
@@ -84,11 +82,13 @@ changequote([,])dnl
       *no) REPLACE_WCWIDTH=1 ;;
     esac
   fi
-  if test $REPLACE_WCWIDTH = 1; then
+  if test $ac_cv_func_wcwidth != yes || test $REPLACE_WCWIDTH = 1; then
     AC_LIBOBJ([wcwidth])
   fi
-
-  if test $REPLACE_WCWIDTH = 1 || test $HAVE_DECL_WCWIDTH = 0; then
+  if test $ac_cv_func_wcwidth != yes || test $REPLACE_WCWIDTH = 1 \
+     || test $HAVE_DECL_WCWIDTH = 0; then
     gl_REPLACE_WCHAR_H
   fi
+  dnl We don't substitute HAVE_WCWIDTH. We assume that if the system does not
+  dnl have the wcwidth function, then it does not declare it.
 ])