add support for wsize in C++ compiler detection

fix typo in compiler detection

more detailed output about build config

fix syntax error in check_cpp_compiler C++ test file

fixes wrong indentation

improve toolchain detection to also get the wordsize and stdc version, issue #439, issue #508

move debug/release flags from target to general flags, fixes #571

(0) -100 -30 -10 -7 +7 +10 +30 tip

mercurial