OS X package names contain OS X version, e.g. 10.10 for Yosemite.

- Enabled Zip packaging on Mac OS.

scripts/cmake/CMakeSetup.cmake

@@ -23,3 +23,20 @@ CMAKE_POLICY(SET CMP0011 OLD)
 
 # Get the hostname
 SITE_NAME(HOSTNAME)
+
+# Compute OS X version number
+IF(APPLE)
+	IF(CMAKE_SYSTEM_VERSION VERSION_EQUAL 12.0)
+		SET(OSX_VERSION 10.8 CACHE STRING "OS X version number")
+		SET(OSX_VERSION_NAME CACHE STRING "Mountain Lion")
+	ENDIF()
+	IF(CMAKE_SYSTEM_VERSION VERSION_EQUAL 13.0)
+		SET(OSX_VERSION 10.9 CACHE STRING "OS X version number")
+		SET(OSX_VERSION_NAME CACHE STRING "Mavericks")
+	ENDIF()
+	IF(CMAKE_SYSTEM_VERSION VERSION_EQUAL 14.0)
+		SET(OSX_VERSION 10.10 CACHE STRING "OS X version number")
+		SET(OSX_VERSION_NAME CACHE STRING "Yosemite")
+	ENDIF()
+ENDIF()
+MARK_AS_ADVANCED(OSX_VERSION OSX_VERSION_NAME)

scripts/cmake/packaging/Pack.cmake

@@ -12,7 +12,7 @@ SET(CPACK_PACKAGE_VERSION_MAJOR "${OGS_VERSION_MAJOR}")
 SET(CPACK_PACKAGE_VERSION_MINOR "${OGS_VERSION_MINOR}")
 SET(CPACK_PACKAGE_VERSION_PATCH "${OGS_VERSION_PATCH}")
 IF(APPLE)
-	SET(CPACK_PACKAGE_FILE_NAME "ogs-${OGS_VERSION}-OSX-x${BITS}")
+	SET(CPACK_PACKAGE_FILE_NAME "ogs-${OGS_VERSION}-OSX-${OSX_VERSION}-x${BITS}")
 	SET(CPACK_SOURCE_PACKAGE_FILE_NAME ${CPACK_PACKAGE_FILE_NAME})
 ELSE()
 	SET(CPACK_PACKAGE_FILE_NAME "ogs-${OGS_VERSION}-${CMAKE_SYSTEM}-x${BITS}")

scripts/cmake/packaging/PackagingMac.cmake

-SET(CPACK_GENERATOR "DragNDrop")
+SET(CPACK_GENERATOR DragNDrop ZIP)
 SET(CPACK_DMG_FORMAT "UDBZ")
 
 # See http://stackoverflow.com/a/16662169/80480 how to create the DS_Store file.