cmake CMath examples

Amber-MD/cpptraj cmake-cpptraj/SetupThirdParty.cmake :310 

find_package(CMath)

InsightSoftwareConsortium/ITK Modules/ThirdParty/TIFF/src/itktiff/CMakeLists.txt :159 

find_package(CMath REQUIRED)

Ravbug/UnityHubNative wxWidgets/src/tiff/CMakeLists.txt :138 

find_package(CMath REQUIRED)

Kitware/VTK ThirdParty/tiff/vtktiff/CMakeLists.txt :164 

find_package(CMath REQUIRED)

merzlab/QUICK cmake/3rdPartyTools.cmake :513 

find_package(CMath)