Avoid requiring CMake 2.8.6 for CMakePushCheckState or CMake 2.8.8 for CMakeExpandImportedTargets. Drop the custom versions of CMake modules CheckCSource(Compiles|Runs) because we do not use the SAFESEH option anyway.
Avoid requiring CMake 2.8.6 for CMakePushCheckState or CMake 2.8.8 for CMakeExpandImportedTargets. Drop the custom versions of CMake modules CheckCSource(Compiles|Runs) because we do not use the SAFESEH option anyway.