add missing check

diff --git a/acinclude.m4 b/acinclude.m4
index 0b670278c972194aae03b453226f4cc5cb8052a7..8d67562e4295b84e809a31bff97875d1b6716dab 100644 (file)
--- a/acinclude.m4
+++ b/acinclude.m4
@@ -583,7 +583,7 @@ AC_DEFUN([PHP_MODULE_PTR],[
 ])
  
 AC_DEFUN([PHP_CONFIG_NICE],[
-  mv $1 $1.old
+  test -f $1 && mv $1 $1.old
   rm -f $1.old
   cat >$1<<EOF
 #! /bin/sh