2005-04-25  Stepan Kasal  <address@hidden>

	* lib/autoconf/status.m4 (_AC_OUTPUT_HEADERS): A tiny optimization.

Index: lib/autoconf/status.m4
===================================================================
RCS file: /cvsroot/autoconf/autoconf/lib/autoconf/status.m4,v
retrieving revision 1.51
diff -u -r1.51 status.m4
--- lib/autoconf/status.m4	13 Apr 2005 17:01:41 -0000	1.51
+++ lib/autoconf/status.m4	25 Apr 2005 21:15:50 -0000
@@ -645,14 +645,9 @@
   # Let's still pretend it is `configure' which instantiates (i.e., don't
   # use $as_me), people would be surprised to read:
   #    /* config.h.  Generated by config.status.  */
-  if test x"$ac_file" = x-; then
-    echo "/* Generated by configure.  */" >"$tmp/config.h"
-  else
-    echo "/* $ac_file.  Generated by configure.  */" >"$tmp/config.h"
-  fi
-  cat "$tmp/in" >>"$tmp/config.h"
-  rm -f "$tmp/in"
   if test x"$ac_file" != x-; then
+    echo "/* $ac_file.  Generated by configure.  */" >"$tmp/config.h"
+    cat "$tmp/in" >>"$tmp/config.h"
     if diff $ac_file "$tmp/config.h" >/dev/null 2>&1; then
       AC_MSG_NOTICE([$ac_file is unchanged])
     else
@@ -662,9 +657,10 @@
       mv "$tmp/config.h" $ac_file
     fi
   else
-    cat "$tmp/config.h"
-    rm -f "$tmp/config.h"
+    echo "/* Generated by configure.  */"
+    cat "$tmp/in"
   fi
+  rm -f "$tmp/in"
 dnl If running for Automake, be ready to perform additional
 dnl commands to set up the timestamp files.
 m4_ifdef([_AC_AM_CONFIG_HEADER_HOOK],