X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=m4%2Fstpncpy.m4;fp=m4%2Fstpncpy.m4;h=158cc087d9e6af70e004b353dc9a694199e77f6c;hb=c5728261c324a75f8d23dd7d10cb42dde9420227;hp=d2344acc4a51ee06862732f893070c26778fd27d;hpb=a6e3f90ba60482e679b8c60a2e2658058715da12;p=gnulib.git

diff --git a/m4/stpncpy.m4 b/m4/stpncpy.m4
index d2344acc4..158cc087d 100644
--- a/m4/stpncpy.m4
+++ b/m4/stpncpy.m4
@@ -1,4 +1,4 @@
-# stpncpy.m4 serial 11
+# stpncpy.m4 serial 12
 dnl Copyright (C) 2002-2003, 2005-2007, 2009-2010 Free Software Foundation,
 dnl Inc.
 dnl This file is free software; the Free Software Foundation
@@ -25,6 +25,7 @@ AC_DEFUN([gl_FUNC_STPNCPY],
   dnl   in AIX:     dest + max(0,n-1)
   dnl Only the glibc return value is useful in practice.
 
+  AC_CHECK_DECLS_ONCE([stpncpy])
   AC_CHECK_FUNCS_ONCE([stpncpy])
   if test $ac_cv_func_stpncpy = yes; then
     AC_CACHE_CHECK([for working stpncpy], [gl_cv_func_stpncpy], [
@@ -32,7 +33,9 @@ AC_DEFUN([gl_FUNC_STPNCPY],
 #include <stdlib.h>
 #include <string.h> /* for strcpy */
 /* The stpncpy prototype is missing in <string.h> on AIX 4.  */
+#if !HAVE_DECL_STPNCPY
 extern char *stpncpy (char *dest, const char *src, size_t n);
+#endif
 int main () {
   const char *src = "Hello";
   char dest[10];