cmake HAVE_FINITE_IN_IEEEFP_H examples

llvm-dcpu16/llvm-dcpu16 cmake/config-ix.cmake :102 

check_symbol_exists(finite ieeefp.h HAVE_FINITE_IN_IEEEFP_H)

KhronosGroup/SPIRV-LLVM cmake/config-ix.cmake :139 

check_symbol_exists(finite ieeefp.h HAVE_FINITE_IN_IEEEFP_H)