Mostly to help Mesa developers diagnose bug reports involving GLSL compile
failures, but it's convenient in general to have the source all in one place.

The extra debug checks cause more harm than good under Valgrind.

This usually indicates that the Wine prefix isn't valid.

The CreatFolders action should create only the directories listed in the
CreateFolder table, the rest will be created during the InstallFiles action.
Fixes the EndNote 8 installer.