[CMake] install directory that create empty folder

[Michaël Presseau]

I used install to install directory with PATTERN. In the directory, there is some folder that doesn't contains file following my PATTERN *.h and *.hpp. When installing with CPack and NSIS on windows, that also create empty folder.

Is there a way to get rid of all this empty folder.

This is my install command:

# Install source de ACE
install (
	DIRECTORY ${ACE_INCLUDE_DIRS}/ace
	DESTINATION ${install_directory}/ace
	COMPONENT ${component_name}
	FILES_MATCHING
		PATTERN *.h
		PATTERN *.hpp
		PATTERN .svn EXCLUDE
)


Thank's a lot!

Michaël