crc_test
../libs/crc/test/crc_test.cpp:533:38: warning: unused typedef 'return_type' [-Wunused-local-typedef]
1 warning generated.
crc_test2
../libs/crc/test/crc_test2.cpp:52:24: warning: unused function 'native_to_big_impl' [-Wunused-function]
1 warning generated.
issue25_test
../libs/crc/test/issue25_test.cpp:9:1: warning: Test skipped because _WIN32 is not defined [-W#pragma-messages]
1 warning generated.