XMMS (was: Re: rawhide report: 20050405 changes)

Dan Williams dcbw at redhat.com
Tue Apr 5 16:43:28 UTC 2005


On Tue, 2005-04-05 at 10:38 -0600, Justin Conover wrote:
> So if I use 
> 
> CC=gcc32 rpmbuild -ba xmms.spec
> 
> I should get a clean build and not an error:
> 
> checking whether make sets $(MAKE)... yes
> checking for x86_64-redhat-linux-gnu-gcc... gcc32
> checking for C compiler default output... configure: error: C compiler
> cannot create executables
> See `config.log' for more details.
> error: Bad exit status from /var/tmp/rpm-tmp.36577 (%build)
> 
> 
> RPM build errors:
>     Bad exit status from /var/tmp/rpm-tmp.36577 (%build)

And here's why: gcc3.3 and below accept different compile flags than gcc
3.4 and above.  Specifically:

gcc <= 3.3: use -mcpu=
gcc >= 3.4: use -mtune=

Neither gcc will accept the other option.  And, since you're running on
a system with gcc4 installed, the rpm OPTFLAGS macro contains -mtune.
So you have to override CFLAGS as well as CC if you want things to
continue to compile with gcc 3.2 and rpmbuild on a gcc4 system.

Dan




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