[CMake] Testing endianess

[Mathieu Malaterre]

Hi there,

  I believe there is a new way to test endianness with cmake. I was using:

INCLUDE (${CMAKE_ROOT}/Modules/TestBigEndian.cmake)
TEST_BIG_ENDIAN(GDCM_WORDS_BIGENDIAN)

  But this does not work when using mingw32 compiler on a linux box.

Thanks !
-- 
Mathieu