The mingw-w64 toolchain bizarrely substitutes scm_to_locale_string()
for scm_to_utf8_string(). This results in latin1 (yeah, "locale" is
a lie) instead of utf8 which causes an assertion in
g_utf8_collate_key().
Perhaps equally bizarre, the compiler doesn't make the substitution
with scm_to_utf8_stringn(), so use that instead.
This will avoid a ninja-build from picking up a config.h generated by the autotools build
(in the root build directory). Picking up the wrong config.h may lead to all kinds of
subtle issues if the autotools run was done with different options than the cmake run.
It is split into
- /libgnucash (for the non-gui bits)
- /gnucash (for the gui)
- /common (misc source files used by both)
- /bindings (currently only holds python bindings)
This is the first step in restructuring the code. It will need much
more fine tuning later on.
