[fpc-devel] Staticaly link C/C++ library (.lib) into FreePascal on Windows

[Sven Barth]

Am 14.03.2017 13:30 schrieb "LacaK" <lacak at zoznam.sk>:
>
> Hi,
>
> I have C/C++ librarby (".lib" for Windows and ".a" for Linux) from Intel
IPP package (they distribute ".lib" and also ".dll" for Windows and ".a"
for Linux)
>
> Can I link in FPC (on Windows) at compile time to this ".lib" versions ?
Or only possible way is link at runtime using ".dll" (and distribute DLLs
with my EXE)?
> (I guess, that FPC can not link to libraries not created in FPC itself.
So format of supplied ".lib" is not compatible with what FPC expects)
>
> I am trying do something like:
> {$linklib libippi}
> function ippiThreshold_LTValGTVal_8u_C1IR(pSrcDst: PIpp8u; srcDstStep:
int;
>        roiSize: IppiSize; thresholdLT: Ipp8u; valueLT: Ipp8u;
thresholdGT: Ipp8u;
>        valueGT: Ipp8u): IppStatus; external; // 'ippi.dll';
>
> (In Project Options I have path to libippi.a in -Fl)
>
> But I get error: test_IPP.lpr(24,1) Error: Undefined symbol:
IPP_IPPITHRESHOLD_LTVALGTVAL_8U_C1IR$PIPP8U$LONGINT$IPPISIZE$BYTE$BYTE$BYTE$BYTE$$IPPSTATUS
>
> I am doing something wrong or just this is not possible ?
>

You might want to try the external linker using -Xe. The internal linker
does not yet support COFF import libraries.

Regards,
Sven
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.freepascal.org/pipermail/fpc-devel/attachments/20170314/1e76246e/attachment.html>