diff -r 000000000000 -r 6474c204b198 toolkit/mozapps/installer/signing.mk
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/toolkit/mozapps/installer/signing.mk	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,40 @@
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+# We shouldn't sign the first pass of a PGO build
+ifndef MOZ_PROFILE_GENERATE
+
+# Signing support
+ifdef MOZ_SIGN_CMD
+ifeq (WINNT,$(OS_ARCH))
+MOZ_INTERNAL_SIGNING_FORMAT := signcode
+MOZ_EXTERNAL_SIGNING_FORMAT := signcode
+SIGN_INCLUDES := \
+  '*.dll' \
+  '*.exe' \
+  $(NULL)
+
+SIGN_EXCLUDES := \
+  'D3DCompiler*.dll' \
+  'msvc*.dll' \
+  $(NULL)
+endif # Windows
+
+ifeq (Darwin, $(OS_ARCH))
+MOZ_INTERNAL_SIGNING_FORMAT := dmg
+MOZ_EXTERNAL_SIGNING_FORMAT :=
+endif # Darwin
+
+ifeq (linux-gnu,$(TARGET_OS))
+MOZ_EXTERNAL_SIGNING_FORMAT :=
+endif # Linux
+
+ifdef MOZ_ASAN
+MOZ_INTERNAL_SIGNING_FORMAT :=
+MOZ_EXTERNAL_SIGNING_FORMAT :=
+endif
+
+endif # MOZ_SIGN_CMD
+
+endif # MOZ_PROFILE_GENERATE