OS X|CMake: Re-sign application bundle after tools installation

Tools install certain files to the application bundle, and its
signature check will fail if it contains additional files.

doomsday/cmake/Macros.cmake

@@ -443,7 +443,7 @@ macro (deng_codesign target)
             endforeach (fn)
             message (STATUS \"Signing ${_outName}.app using '${DENG_CODESIGN_APP_CERT}'...\")
             execute_process (COMMAND ${CODESIGN_COMMAND} --verbose
-                -s \"${DENG_CODESIGN_APP_CERT}\"
+                -s --force \"${DENG_CODESIGN_APP_CERT}\"
                 \"\${CMAKE_INSTALL_PREFIX}/${_outName}.app\"
             )")
     endif ()

doomsday/tools/CMakeLists.txt

@@ -20,3 +20,9 @@ if (UNIX)
 endif ()
 add_subdirectory (texc)
 add_subdirectory (wadtool)
+
+if (APPLE AND TARGET client)
+    # Tools install files into the Doomsday.app bundle, so it must now be
+    # signed again.
+    deng_codesign(client)
+endif ()