Several distributions usually decide for shared external libraries
instead of an usual embedded, for security reasons, duplicatiion issues.
This change enable the possibility to set SYSTEM_IRRXML=ON for detect
and build against a system installed irrxml.
By default, the internal copy is compiled.
Changes on build:
- Added a FindIrrXML cmake module.
- Moved the source recipe for proper CMakeLists inside contrib directory
- Includes aren't path based anymore, using the provided INCLUDE_DIR
- Compiler option are grouped in a singled entry on main CMakeLists
Note: Current internal assimp irrXML is older than upstream irrlicht 1.8.4.
To enable usage of this version, code need to be patched.
Kim Kulling
Kim Kulling
Jared Mulconry
Lee Jeffery
Helio Chissini de Castro