gistfile1.txt

diff --git a/profiles/mono-mac-release/mono-mac-release.py b/profiles/mono-mac-release/mono-mac-release.py
index 8e0311c..37fd22b 100755
--- a/profiles/mono-mac-release/mono-mac-release.py
+++ b/profiles/mono-mac-release/mono-mac-release.py
@@ -23,6 +23,7 @@ class MonoReleaseProfile(DarwinProfile, MonoReleasePackages):
         self.BUILD_NUMBER = "0"
         self.MRE_GUID = "432959f9-ce1b-47a7-94d3-eb99cb2e1aa8"
         self.MDK_GUID = "964ebddd-1ffe-47e7-8128-5ce17ffffb05"
+        self.sign_package = os.getenv('BOCKBUILD_SIGN_PACKAGE') != None
 
         if self.RELEASE_VERSION is None:
             raise Exception("Please define the environment variable: MONO_VERSION")
@@ -126,7 +127,7 @@ class MonoReleaseProfile(DarwinProfile, MonoReleasePackages):
                                  "--root '%s/PKGROOT'" % working_dir,
                                  "--version '%s'" % self.RELEASE_VERSION,
                                  "--install-location '/'",
-                                 "--sign '%s'" % identity,
+                                 ("--sign '%s'" % identity) if self.sign_package else "",
                                  "--scripts '%s'" % resources_dir,
                                  os.path.join(working_dir, "mono.pkg")])
         print pkgbuild_cmd