[banshee] Update extras/make-release to work w/o OS X build

[Gabriel Burt <gburt src gnome org>]

commit 6bd5f46b605087930ac465e02d831528954b2c30
Author: Gabriel Burt <gabriel burt gmail com>
Date:   Wed Mar 10 22:16:32 2010 -0800

    Update extras/make-release to work w/o OS X build

 extras/make-release |    6 +++++-
 1 files changed, 5 insertions(+), 1 deletions(-)
---
diff --git a/extras/make-release b/extras/make-release
index 4cc19a2..98c55b4 100755
--- a/extras/make-release
+++ b/extras/make-release
@@ -147,7 +147,11 @@ function osx_build_dmg () {
 }
 
 distcheck
-osx_build_dmg
+if [[ -z $OSX_USER ]]; then
+    echo "Skipping OS X build"
+else
+    osx_build_dmg
+fi
 prepare_upload
 upload_release
 tag_release