[PATCH 1/5] cpp: expose minimal key export flag from C

[Thorsten Behrens]

Werner Koch wrote:
> I noticed things like
> 
> -#      ifdef WIN32
> +#      ifdef _MSC_VER
>  #       define GPGMEPP_EXPORT __declspec(dllexport)
> 
Hmm - but WIN32 is an equally-bad choice, since it's only defined for
mingw builds.

Looking at https://gist.github.com/jonforums/968522, how about going
with _WIN32 for the while?

> After all this boils down to the question whether and how we want to
> support native building and - worse - on a really strange
> combination of platforms.
> 
The platform - when it comes to compiler and linker, i.e. all pieces
that touch the actual code - is pretty standard msvc. All patches
submitted against _that_ goal IMO improve portability quite a bit (if
you look closer, there were some nonsense calls to posix functions in
Windows-only code, where then the mingw libc silently drops stuff -
I'd much prefer this to be visible in plain sight).

I admit the build system I had to shoehorn that into is weird; then
again that can be said about autotools, too ... ;)

Cheers,

-- Thorsten
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