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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