Am Do., 31. Jan. 2019, 22:03 hat Marc Santhoff <m.santh...@web.de> geschrieben:
> On Thu, 2019-01-31 at 11:00 -0700, conlin664 via fpc-pascal wrote: > > sven, > > > > so I just tried, what I think you said: > > > > procedure HelloC; cdecl; external name 'HelloC'; > > > > pcode.pas(19,1) Error: Undefined symbol: _HelloC > > > > > > sorry for complaining about windows, but i feel like this is more > difficult > > on windows. > > All of the FPC examples, seem to run without this extra '_' business and > i > > suspect they are on linux Os macOs. > > You could rename your "HelloC.o to "_HelloC.o" before archiving inte the > library? Not that beautiful, but would be working, wouldn't it? > That is the object file, not the symbol. The symbol is the important part here. > @Sven: > Maybe it is a later addition, but her on fpc 2.6.4 your syntax is not > mentioned in the Programmers Guide (prog.pdf). > > If i did look carefully enough there is no description of the syntax for: > > "external name <NAME>" > It's an old syntax. Probably it was simply forgotten to be added to the documentation. Happens... 🤷♀️ And more, those details of naming and the different name conventions on > Win32 > and Win64 are missing, too. I think there should be at least a wiki page or > better some explanations in the Programmers Guide. This is part of the platform's ABI. It's not our job to document that, only to make it usable. Regards, Sven >
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