When using nall as a header-only library it was possible to opt out of
nall taking over main() by simply not including main.hpp. There was no
mechanism to opt out when building nall as a separate translation unit
because nall.cpp unconditionally pulled in main.cpp. Now, users of nall
must specifically opt in by including main.cpp in their build (though
header-only users still only need to include main.hpp).
The -mconsole and -mwindows flags don't seem to do much of anything when
Clang isn't targeting MinGW. On the other hand, directly overriding the
subsystem with a linker flag results in a bunch of unresolved symbols.
However, if the right entry point exists (either WinMain or main),
some apparent magic goes on under the hood to ensure that everything
links as expected, so we can just take advantage of that.
Begin the process of splitting nall into separate translation units.
It can now be used in two ways:
1) as a header-only library by defining NALL_HEADER_ONLY
2) by compiling nall/nall.cpp
sourcery has been updated to demonstrate the header-only use and
everything else now builds nall.cpp.
So far the only things moved into .cpp files are implementations that
call Windows APIs. This allows most of ares to build without including
windows.h and enables the removal of the abomination that was
windows/guard.hpp. The things that actually need windows.h (hiro, ruby)
must avoid using names reserved by Windows headers, but the rest of ares
is free to use names like "far", "boolean", and "interface" with
reckless abandon.
This work is done in preparation for building against MSVC and Windows
SDK headers/libraries an an alternative to MinGW-w64.
invertego