cmake HAVE_FLOATABI_SOFTFP examples

HDFGroup/hdf5 config/cmake/ZLIBNG/CMakeLists.txt :266 

check_c_source_compiles(
                        "#include <features.h>
                        int main() { return 0; }"
                        HAVE_FLOATABI_SOFTFP)

InsightSoftwareConsortium/ITK Modules/ThirdParty/HDF5/src/itkhdf5/config/cmake/ZLIBNG/CMakeLists.txt :241 

check_c_source_compiles(
                        "#include <features.h>
                        int main() { return 0; }"
                        HAVE_FLOATABI_SOFTFP)

InsightSoftwareConsortium/ITK Modules/ThirdParty/ZLIB/src/itkzlib-ng/CMakeLists.txt :230 

check_c_source_compiles(
                        "#include <features.h>
                        int main() { return 0; }"
                        HAVE_FLOATABI_SOFTFP)