[fpc-devel] Random compiler errors

[Jeppe Græsdal Johansen]

Den 10-02-2013 21:47, Adriaan van Os skrev:
> I maintain a large 600.000 FreePascal project that compiles for Mac OS 
> X. It mixes MacPascal and Delphi compiler modes. Unfortunately the 
> compiler is now producing random error messages, that disappear on a 
> clean rebuild. The error messages are not clearly reproduceable. 
> Sometimes, everything is OK, sometimes the incorrect error messages 
> are there.
>
> I suspect corrupted .ppu files, I there a way to use a tool (like 
> ppudump) or a specially built compiler to investigate this problem 
> systematically, to get an idea of what is wrong ? I do builds through 
> a Makefile. I could image always adding a ppudump to the builds and 
> then looking at the output when random error messages popup, comparing 
> the output to previous builds. Something like that.
>
> An automatic "ppu sanity mode" inside the compiler would even be better.
>
> Regards,
>
> Adriaan van Os
I have seen this behaviour when files with the same name is visible in 
more places in the directories visible to the compiler, and one is 
already built(valid .ppu available)