Re: [PATCH] perf build: Do not duplicate CFLAGS in Python extension builds

[Arnaldo Carvalho de Melo]

On Wed, Jun 10, 2026 at 02:38:24PM +0100, James Clark wrote:
> 
> 
> On 10/06/2026 12:23 pm, Jens Remus wrote:
> > setuptools already uses CFLAGS.  Passing CFLAGS with additional flags as
> > extra compile arguments causes CFLAGS to effectively get passed twice:
> > 
> > $ make -C tools/perf V=1 JOBS=1
> > ...
> > building 'perf' extension
> > gcc [CFLAGS] -fPIC -Iutil/include -I/usr/include/python3.14 \
> >    -c /root/linux/tools/perf/util/python.c \
> >    -o python_ext_build/tmp/root/linux/tools/perf/util/python.o \
> >    [CFLAGS] \
> >    -fno-strict-aliasing -Wno-write-strings -Wno-unused-parameter \
> >    -Wno-redundant-decls -Wno-cast-function-type \
> >    -Wno-declaration-after-statement
> > 
> > Signed-off-by: Jens Remus <jremus@xxxxxxxxxxxxx>
> 
> Reviewed-by: James Clark <james.clark@xxxxxxxxxx>

Thanks, applied to perf-tools-next, for v7.2.

- Arnaldo