Fixed compatible mode in most runtime files.
diff --git a/runtime/compiler/gfortran.vim b/runtime/compiler/gfortran.vim
index 898026e..1e4e5cf 100644
--- a/runtime/compiler/gfortran.vim
+++ b/runtime/compiler/gfortran.vim
@@ -1,7 +1,7 @@
 " Compiler: GNU Fortran Compiler
 " Maintainer: H Xu <xuhdev@gmail.com>
 " Version: 0.1.3
-" Last Change: 19 March 2011
+" Last Change: 2012 Apr 30
 " Homepage: http://www.vim.org/scripts/script.php?script_id=3496
 "           https://bitbucket.org/xuhdev/compiler-gfortran.vim
 " License: Same as Vim
@@ -10,6 +10,8 @@
     finish
 endif
 let current_compiler = 'gfortran'
+let s:keepcpo= &cpo
+set cpo&vim
 
 if exists(":CompilerSet") != 2		" older Vim always used :setlocal
   command -nargs=* CompilerSet setlocal <args>
@@ -20,3 +22,6 @@
             \%-Z%trror:\ %m,
             \%-Z%tarning:\ %m,
             \%-C%.%#
+
+let &cpo = s:keepcpo
+unlet s:keepcpo