Tobias Bieniek authored May 29, 2012 and Brad King committed May 29, 2012

Using the QT4_ADD_RESOURCES() macro required the resource file to exist
already for dependency scanning.  This prevented the use of resource
files that are generated by cmake because it needs the file before
resolving the dependency.  This patch adds support for generated
resource files by not scanning the resource file for dependencies if it
doesn't exist yet.  The add_custom_command() to generate the resource
file should add the dependencies on the files used by the resource file.