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

[Scott Wood <scottwood@freescale.com>]

On 12/13/2012 01:16:48 PM, Scott Wood wrote:
> On 12/13/2012 12:58:19 PM, Stefan Weil wrote:
>> A cross prefix which starts with an absolute path (like in your  
>> scenario) justs
>> requires adding `dirname "${cross_prefix}"` to PATH and passing
>> `basename "${cross_prefix%-}" to the pixman configure.
> 
> Right...  I'm not thrilled at the idea of build scripts messing with  
> $PATH -- normally I deal with autoconf builds by explicitly passing  
> in CC and such (and am much happier when I encounter a project such  
> as QEMU-until-recently that is fine with just a cross prefix rather  
> than a host tuple) -- but the alternative is making the QEMU build  
> scripts aware of every build tool than pixman requires.
> 
> What I don't want to do is put it in $PATH semi-permanently, in the  
> interactive instance of the shell.
> 
>> These modifications could be added to QEMU's configure and Makefile
>> if we really want that. Installing pixman once manually also works
>> and saves compilation time for repeated builds. That's why I no  
>> longer
>> use internal pixman for any of my cross compilations.
> 
> Yes, I could manually install it, though then I get to deal with  
> telling the pixman build exactly where to install itself, and  
> repeating the process for each toolchain and multilib-variant thereof.

BTW, I use QEMU's --extra-cflags and --extra-ldflags options for  
choosing the multilib variant I'm targeting.  It looks like something  
would need to be added to get those passed into pixman's build as well.

-Scott