Cross compiling

[backprop]

Cross compiling explanation on wiki seems quite messy. For instance:
https://wiki.freepascal.org/Cross_compiling_for_Windows_under_Linux

Is it possible to make this much easier?

For instance, I would like to make on Linux 64-bit executable for 64/32-bit Linux, Windows and Mac. But all this seems quite messy if I need to change all before any compilation...

Perhaps some easier way exists?

[dbannon]

For instance, I would like to make on Linux 64-bit executable for 64/32-bit Linux, Windows and Mac. But all this seems quite messy if I need to change all before any compilation...

Changes all what ?

You do it once and then, in you code, have #ifdef around platform specific code.

By the way, I never managed to get Linux->Mac to work. But have not tried for some time....

And, my cross compile machine is a VM, it builds Linux (32 and 65), Windows (32 and 64), Armhf and AppImages. GTK2, Qt5, Qt6, WIn23. By having it as a standalone, rarely changing box, I don't need to worry about the day to day fiddling causing unexpected problems. Its an U2004 machine so it avoids the glibc problem.

Davo

[Wallaby]

In one word - fpcupdeluxe.

Install fixes FPC and fixes Lazarus and the cross-compilers towards target platforms. Plus, you will get all the latest not yet released fixes done to both Lazarus and FPC.

I am not sure how well it works on Linux, but from Windows I can easily compile towards Linux (x86_64 + aarch64), Windows (i386 + x86_64) and Darwin (x86_64 + aarch64), all from the same IDE on my Windows PC.

[TRon]

If cross-compiling to windows looks messy then I wonder what TS would think about what needs to be done for cross-compiling to some serious platforms.

FPCUpdeluxe is nice but only hides that what needs to be done. Practice has proofed that even that isn't enough for some.

[Thaddy]

I don't see what is messy? And I have a lot of cross compilers at the same time and all work as expected.