strtok_r: Improve idiom

[Bruno Haible]

This tiny improvement should have no visible effect either.


2010-04-05  Bruno Haible  <address@hidden>

        strtok_r: Improve idiom.
        * m4/strtok_r.m4 (gl_FUNC_STRTOK_R): Invoke gl_PREREQ_STRDUP only when
        AC_LIBOBJ is used.

--- m4/strtok_r.m4.orig Mon Apr  5 12:53:07 2010
+++ m4/strtok_r.m4      Mon Apr  5 12:44:33 2010
@@ -1,5 +1,5 @@
-# strtok_r.m4 serial 9
-dnl Copyright (C) 2002, 2003, 2004, 2007, 2009, 2010 Free Software Foundation,
+# strtok_r.m4 serial 10
+dnl Copyright (C) 2002-2004, 2006-2007, 2009-2010 Free Software Foundation,
 dnl Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -59,12 +59,12 @@
     esac
   else
     AC_LIBOBJ([strtok_r])
+    gl_PREREQ_STRTOK_R
   fi
   AC_CHECK_DECLS_ONCE([strtok_r])
   if test $ac_cv_have_decl_strtok_r = no; then
     HAVE_DECL_STRTOK_R=0
   fi
-  gl_PREREQ_STRTOK_R
 ])
 
 # Prerequisites of lib/strtok_r.c.