Re: [Qemu-devel] Re: [PATCH] Fix checksum writing in signboot.sh

[Paolo Bonzini]

> > Right. In fact we just switched from C to sh for portability reasons.
>
> The problem is with cross compilers. Our build system is based around a
> single tool chain and we only do feature probing, sanity checking,
> cflags modifications, etc. on the target tool chain. If we build and run
> a C program using the host compiler (which is needed in order to be able
> to run the program), things get complicated quickly.

One hopes that you do not need feature tests for the build compiler if 
it is used for someting as simple as generating checksums.  The build 
compiler should be just "cc" or "gcc".

That said, I don't think sh is a big problem.

Paolo