Help with the 'export' declaration and OpenSSL?

[Reid Levenick]

On Sunday, 26 May 2013 at 00:38:23 UTC, Reid Levenick wrote:
> I'm trying to use the OpenSSL bindings from Deimos, but 
> whenever I try to use the PEM_write_X509 function (among 
> others), OpenSSL gives a fatal error of "no OPENSSL_Applink", 
> because in OpenSSL's ms/uplink.c, the function OPENSSL_Uplink 
> calls GetProcAddress on the application with the string 
> "OPENSSL_Applink".
>
> So far I've tried
>
> Writing a D version of applink.c: I can't get dmd to export my 
> OPENSSL_Applink without a leading underscore.
> and
> Recompiling OpenSSL without -DOPENSSL_ENABLE_APPLINK: 
> Converting libraries to OMF gives me a series of errors in dmd 
> that give the impression that the functions from io.h or a 
> similar file are not visible. I can't get any compile to work.
>
> From what I can tell, there are two possible solutions to my 
> problem:
>
> Export OPENSSL_Applink from my D program without a leading 
> underscore.
> or
> Get a working compile of OpenSSL and then add an underscore in 
> uplink.c before recompiling.
>
> If anybody could help me with either of these (or suggest a 
> third option) that would be fantastic.

For posterity:

I got a compile of OpenSSL to work by configuring with "shared 
mingw", building, using dumpobj to get a list of exports from the 
dlls and making .defs for them, building a lib with the "lib" 
tool, and then converting that to OMF with coffimplib.

There's definitely an easier way about this that I haven't 
found...