[x11] Re: How to OverrideCFLAGS in Modular Builds

John Klingler john at jupiter.com
Tue Sep 18 11:30:14 PDT 2007

Dan Nicholson wrote:

>Hmm, it should work like I described. I've built hundreds of packages
>in that manner. When you run ./configure (an autoconf generated
>configure, anyway), it should prefer CFLAGS from the environment and
>propagate them to the generated Makefiles.
configure picks up the CFLAGS from the environment OK but gets a compile 
error on conftest.c,
which is generated. This may be why it reverts to the default CFLAGS 
definition. I tried editing
configure to get around this but that screwed the pooch so that 
restoring the original didn't put
things back, which is why I had to go to the top and run the build 
script. That fixed everything
and incorporated the CFLAGS definition. Still, it make me queasy poking 
around in the dark
like that.

>> <>It's a wiki, so if you find it to be lacking, you can add information
>> there. That said, it is a little difficult to build up a fully
>> functioning Xorg installation from scratch. For some clues, you can
>> see the linuxfromscratch instructions.
>> http://www.linuxfromscratch.org/blfs/view/svn/x/xorg7.html
>> It's a little behind the times, but it should give some clues. The
>> only part truly missing there is the external pixman library needed
>> for Xorg-7.3.
>> --
>> Dan
Thanks, Dan, I'll have a look, although I've already muddled my way 
through and gotten my
application building and running. Since I will eventually have to write  
build procedures for QA,
I will probably make some contributions at that time.


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