This is better looking. Other options use the same.

foobar · foobar · commit 315cfb2b4e5c · 2001-06-24T12:53:17.000Z
diff --git a/ext/gd/config.m4 b/ext/gd/config.m4
@@ -21,7 +21,7 @@ AC_DEFUN(PHP_GD_JPEG,[
       -L$PHP_JPEG_DIR/lib
     ])
   else 
-    AC_MSG_RESULT(not set. If configure fails try --with-jpeg-dir=<DIR>)
+    AC_MSG_RESULT(If configure fails try --with-jpeg-dir=<DIR>)
   fi
 ])
 
