more fixes for CMake to support 2.6.{0.1.2}, >2.6.2 and 2.4
more fixes for CMake to support 2.6.{0.1.2}, >2.6.2 and 2.4

ProfessorKaos64/openlierox,ProfessorKaos64/openlierox,ProfessorKaos64/openlierox,ProfessorKaos64/openlierox,ProfessorKaos64/openlierox,ProfessorKaos64/openlierox,ProfessorKaos64/openlierox