add_recursive cmake macro missing

[al2950]

colibrigui/CMakeLists.txt

Lines 77 to 78 in fb0545c

	add_recursive( ./src/ColibriGui SOURCES )
	add_recursive( ./include/ColibriGui HEADERS )

The add_recursive function or macro is missing so it fails if you build with COLIBRIGUI_LIB_ONLY set.