cmake C_HAS_PEDANTIC examples

torch/DEPRECEATED-torch7-distro extra/nn/CMakeLists.txt :6 

CHECK_C_COMPILER_FLAG(-pedantic C_HAS_PEDANTIC)

torch/DEPRECEATED-torch7-distro lib/CMakeLists.txt :4 

CHECK_C_COMPILER_FLAG(-pedantic C_HAS_PEDANTIC)

torch/DEPRECEATED-torch7-distro pkg/torch/CMakeLists.txt :3 

CHECK_C_COMPILER_FLAG(-pedantic C_HAS_PEDANTIC)