# set TEST_PREFIX for subdirectories (they in turn can also add a sub-prefix):
set (TEST_PREFIX "${TEST_PREFIX}EXTERNAL_")

add_subdirectory(irrxml-1.2)

add_subdirectory(gmtl-0.6.1)

option(INVRS_ENABLE_EXTERNAL_AVATARA "build the external avatara lib" ON)
if(INVRS_ENABLE_EXTERNAL_AVATARA)
	set(BUILD_EXTERNAL_AVATARA ON CACHE BOOL "flag that avatara will be built")
	mark_as_advanced(BUILD_EXTERNAL_AVATARA)
	add_subdirectory(avatara-1.0)
endif(INVRS_ENABLE_EXTERNAL_AVATARA)

option(INVRS_ENABLE_EXTERNAL_CAVESCENEMANAGER "build the external cavescenemanger lib" ON)
if(INVRS_ENABLE_EXTERNAL_CAVESCENEMANAGER)
	set(BUILD_EXTERNAL_CAVESCENEMANAGER ON CACHE BOOL "flag that cavescenemanger will be built")
	mark_as_advanced(BUILD_EXTERNAL_CAVESCENEMANAGER)
	add_subdirectory(CAVESceneManager-1.0)
endif(INVRS_ENABLE_EXTERNAL_CAVESCENEMANAGER)

option (INVRS_ENABLE_EXTERNAL_FFD "Build inVRs support for free form deformation?" OFF)
if(INVRS_ENABLE_EXTERNAL_FFD )
	add_subdirectory(FFD-1.0)
endif(INVRS_ENABLE_EXTERNAL_FFD )

option (INVRS_ENABLE_EXTERNAL_UFO "Build inVRs support for ufo?" ON)
if(INVRS_ENABLE_EXTERNAL_UFO )
	add_subdirectory(ufo)
endif(INVRS_ENABLE_EXTERNAL_UFO )