X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=m4%2Ffpending.m4;h=a073483b6bae62c648885d5d1cc71c00feda2e4e;hb=44381706525606846b2586bc85ebf67281b41e6b;hp=d086ac635e5a38f076df150e67bf36f368c79079;hpb=23fe10e274cf20fb2cb75ea1da9556a733106657;p=gnulib.git

diff --git a/m4/fpending.m4 b/m4/fpending.m4
index d086ac635..a073483b6 100644
--- a/m4/fpending.m4
+++ b/m4/fpending.m4
@@ -1,4 +1,9 @@
-#serial 4
+#serial 10
+
+# Copyright (C) 2000, 2001, 2004, 2005, 2006 Free Software Foundation, Inc.
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
 
 dnl From Jim Meyering
 dnl Using code from emacs, based on suggestions from Paul Eggert
@@ -10,9 +15,10 @@ dnl we have to grub around in the FILE struct.
 
 AC_DEFUN([gl_FUNC_FPENDING],
 [
-  AC_CHECK_HEADERS(stdio_ext.h)
+  AC_CHECK_HEADERS_ONCE(stdio_ext.h)
   AC_REPLACE_FUNCS([__fpending])
   fp_headers='
+#     include <stdio.h>
 #     if HAVE_STDIO_EXT_H
 #      include <stdio_ext.h>
 #     endif
@@ -35,7 +41,7 @@ AC_DEFUN([gl_FUNC_FPENDING],
 	    'fp->_p - fp->_bf._base'				\
 								\
 	    '# SCO, Unixware'					\
-	    'fp->__ptr - fp->__base'				\
+	    '(fp->__ptr ? fp->__ptr - fp->__base : 0)'		\
 								\
 	    '# old glibc?'					\
 	    'fp->__bufp - fp->__buffer'				\