Cross compile support doesn't work if host and target compilers are different

[rossburton]

If the native compiler is e.g. gcc 6.3 but the cross compiler is gcc 9, then using the target CFLAGS when building the native makeguids binary could fail if gcc9-specific options were being used.

[rossburton]

The usual technique is to carry on the FOR_BUILD idiom, and respect CFLAGS_FOR_BUILD etc. Maybe it's time to use something like Meson which does this for you?

[dtor]

I also observe similar breakage with makeguids crashing with invalid opcode because our build scripts compile for particular target architecture which is not supported by the host where makeguids is being executed.

[asheplyakov]

The problem is that util.o is linked both into makeguids binary (which should run on the build machine) and target libraries/binaries. Depending on luck either the $build util.o gets linked into target libraries/binaries, or the target util.o is linked into makeguids.

[asheplyakov]

The problem is that util.o is linked both into makeguids binary (which should run on the build machine) and target libraries/binaries. Depending on luck either the $build util.o gets linked into target libraries/binaries, or the target util.o is linked into makeguids.

This has been solved by ca48d39