Class operators in Freepascal records like in Delphi 2010?

[JSoftware]

Replace all mentions you can find of 2.4.2 with 2.5.1, and you should be good again

Units compiled with a different version of the compiler cannot be used by the same compiler. It might be a very different PPU structure. Hence, you will also have to recompile lazarus when you've inserted the new FPC version info

[paul_nicholls]

Replace all mentions you can find of 2.4.2 with 2.5.1, and you should be good again

Units compiled with a different version of the compiler cannot be used by the same compiler. It might be a very different PPU structure. Hence, you will also have to recompile lazarus when you've inserted the new FPC version info

When you say replace 2.4.2 with 2.5.1 do you mean in the fpc.cfg and Lazarus options?

I did notice that there is no ...)fpc\2.5.1\source\ folder, only a ...fpc\2.4.2\source\ what do I do about that?
Copy those files across so they can be re-compiled for 2.5.1?

There is also no make.exe for 2.5.1, only 2.4.2

cheers,
Paul

[JSoftware]

It doesn't matter where the source is, just that lazarus is pointed to the right version. You need to point lazarus to the directory where the 2.5.1 source is(compiler,ide,rtl,packages,utils,etc)

Edit: which version of make.exe doesn't matter either