Re: [Qemu-devel] [PATCH RFC] Makefile.target: prepend $libs_softmmu to $LIBS

[Peter Maydell <peter.maydell@linaro.org>]

On 9 March 2015 at 23:54, Wei Liu <wei.liu2@citrix.com> wrote:
> I discovered a problem when trying to build QEMU statically with gcc.
> libm is an element of LIBS while libpixman-1 is an element in
> libs_softmmu. Libpixman references functions in libm, so the original
> ordering makes linking fail.
>
> This fix is to reorder $libs_softmmu and $LIBS to make -lm appear after
> -lpixman-1. However I'm not quite sure if this is the right fix, hence
> the RFC tag.
>
> Normally QEMU is built with c++ compiler which happens to link in libm
> (at least this is the case with g++), so building QEMU statically
> normally just works and nobody notices this issue.

Actually I think nobody notices it because they don't statically
link the softmmu executables. Static linking is really intended
for the linux-user executables.

Maybe we should actively stop configure allowing a static build
of the softmmu and tools binaries, rather than having configs which
nobody really tests? Or is there a genuine use case for them?

thanks
-- PMM