Re: [Qemu-devel] [RFC PATCH] Allow building without graphics support

[Gerd Hoffmann <kraxel@redhat.com>]

  Hi,

>> # ls -l /usr/bin/*-gcc
>> -rwxr-xr-x. 2 root root 264112 Aug 23  2011 /usr/bin/i686-pc-mingw32-gcc
>> -rwxr-xr-x. 2 root root 268216 Oct 18 18:24
>> /usr/bin/x86_64-redhat-linux-gcc
>>
>> I think the second part ("pc" / "redhat") can be choosen pretty freely
>> when building gcc, so you could name your cross compilers differently,
>> then have them in PATH and pick by name instead of typing full paths.
> 
> For the most part I don't build these toolchains, so that's not an
> option.

Ok.

> Plus, I like having each toolchain fully contained in its own
> directory.

No need to change that, you can just stick all the directories into the
PATH.  Well, you could if the different compilers would have different
names, thats why I suggested that ...

>> ./configure
>> --cross-prefix=/home/scott/fsl/tc/gcc-4.5.55-eglibc-2.11.55/powerpc-linux-gnu/bin/powerpc-linux-gnu-
>>
>> && make ?
> 
> A few more options than that, but basically yes.
> 
> I can get past this particular obstacle by doing something like:
> 
> (PATH=/home/scott/.../powerpc-linux-gnu/bin:"$PATH" ./configure
> --cross-prefix=powerpc-linu-gnu- ...)

Why do you need this?  Any tools not picked up correctly if you don't
set the PATH?  Which ones?

> ...but then I run into the problem that --extra-cflags and
> --extra-ldflags don't get passed into pixman.

That should be fixable easily.  Have a patch for that?  If so, please
send to the list.  Otherwise I can have a look.

Why do you need --extra-cflags + --extra-ldflags btw?

cheers,
  Gerd