Re: [Xen-devel] [PATCH] tools/qemu-xen: remove CFLAGS for qemu build

[Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx>]

Olaf Hering writes ("Re: [Xen-devel] [PATCH] tools/qemu-xen: remove CFLAGS for 
qemu build"):
> I think that there should be a way to pass individual external CFLAGS to
> the tools, ipxe, qemu-traditional, qemu-xen, etc builds.

Yes, but I think that's already supposed to exist.  PREPEND_CFLAGS and
APPEND_CFLAGS.  Look in tools/Rules.mk.

> From a distro perspective, its required to build libraries and binaries
> with certain global cflags. Up to the point when qemu-upstream was
> imported it worked as expected by exporting CFLAGS before 'make tools'.
> Now qemu-upstream reuses these CFLAGS, but it cant deal with the result.
> 
> How about something like this:
> env \
>         EXTRA_CFLAGS_XEN_TOOLS="$RPM_OPT_FLAGS" \
>         EXTRA_CFLAGS_QEMU_UPSTREAM="" \
>         EXTRA_CFLAGS_IPXE="" \
>         ./configure <more options>

It doesn't need to be plumbed through configure; it can just be used
directly by make, although configure should use it for its tests I
guess and probably doesn't right now.

Ian.

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