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-rw-r--r--mkconfig.rb13
1 files changed, 12 insertions, 1 deletions
diff --git a/mkconfig.rb b/mkconfig.rb
index 08f8dc166e..757a153f5f 100644
--- a/mkconfig.rb
+++ b/mkconfig.rb
@@ -132,6 +132,17 @@ EOS
$stdout.flush
$stdout.reopen($orgout)
config.close
-File.rename(rbconfig_rb_tmp, rbconfig_rb)
+if $timestamp and
+ File.exist?(rbconfig_rb) and
+ FileUtils.compare_file(rbconfig_rb, rbconfig_rb_tmp)
+ puts "#{rbconfig_rb} unchanged"
+ File.unlink(rbconfig_rb_tmp)
+else
+ puts "#{rbconfig_rb} updated"
+ File.rename(rbconfig_rb_tmp, rbconfig_rb)
+end
+if String === $timestamp
+ FileUtils.touch($timestamp)
+end
# vi:set sw=2: