Hello! I have compiled libdb (BerkeleyDB) with Microsoft Visual Studio 2015.
1) "Debug" mode. I have libdb53d.dll file. Do implib.
The linker doesn't seen symbols from the library! Do "lib -l". In the list of symbols "db_create", linker searches "_db_create". Is it the problem?
2) "Debug-Static" mode. I have libdb53d.lib file. Try to compile. linker say that it has unsupported COFF format. Read about COFF2OMF, buy extended utils to get it.
$ coff2omf libdb53d.lib
Segmentation Fault
Try like on page http://www.digitalmars.com/ctg/coff2omf.html:
$ link /lib /convert file.lib
LINK : warning LNK4044: unrecognized option '/convert'; ignored

So nothing works. How to use a library compiled with Microsoft Visual Studio 2015 in D?

On 2016-12-05 07:44, unDEFER wrote:
> Hello! I have compiled libdb (BerkeleyDB) with Microsoft Visual Studio
> 2015.
> 1) "Debug" mode. I have libdb53d.dll file. Do implib.
> The linker doesn't seen symbols from the library! Do "lib -l". In the
> list of symbols "db_create", linker searches "_db_create". Is it the
> problem?
> 2) "Debug-Static" mode. I have libdb53d.lib file. Try to compile. linker
> say that it has unsupported COFF format. Read about COFF2OMF, buy
> extended utils to get it.
> $ coff2omf libdb53d.lib
> Segmentation Fault
> Try like on page http://www.digitalmars.com/ctg/coff2omf.html:
> $ link /lib /convert file.lib
> LINK : warning LNK4044: unrecognized option '/convert'; ignored
>
> So nothing works. How to use a library compiled with Microsoft Visual
> Studio 2015 in D?

If you compile your D code with the "-m32mscoff" flag it will produce COFF objects and use the Visual Studio tool chain (linker and runtime). Compiling for 64bit (-m64) will always produce COFF objects.

-- 
/Jacob Carlborg

On Monday, 5 December 2016 at 07:21:30 UTC, Jacob Carlborg wrote:
> If you compile your D code with the "-m32mscoff" flag it will produce COFF objects and use the Visual Studio tool chain (linker and runtime). Compiling for 64bit (-m64) will always produce COFF objects.

Big thanks! -m32mscoff is great!
But now I have the problem of unresolved external symbols, e.g. "__imp__htonl@4".
What I'm doing? I'm going to Microsoft Visual Studio directory and run the script:
$ for i in `/bin/find.exe . -iname "*.lib"`; do bin/dumpbin /SYMBOLS $i | /bin/grep __imp__htonl@4 && echo $i; done
308 00000000 UNDEF  notype       External     | __imp__htonl@4
./atlmfc/lib/nafxcw.lib
3C6 00000000 UNDEF  notype       External     | __imp__htonl@4
./atlmfc/lib/nafxcwd.lib
332 00000000 UNDEF  notype       External     | __imp__htonl@4
./atlmfc/lib/uafxcw.lib
3D6 00000000 UNDEF  notype       External     | __imp__htonl@4
./atlmfc/lib/uafxcwd.lib

Try to link with found libraries, but it doesn't work. The symbols still unresolved.
What I'm doing wrong?

OK, I have found. It must be library WS2_32.LIB from Microsoft SDK. But dumpbin doesn't show __imp__htonl@4 symbol there. The magic!
Thank you!