Re: [OS-BUILD PATCH] [redhat] perf: enable CoreSight support

[Justin Forbes (via Email Bridge)]

From: Justin Forbes on gitlab.com
https://gitlab.com/cki-project/kernel-ark/-/merge_requests/1167#note_5958255...

Curious on this, as Fedora has been building with CORESIGHT for a bit now
(since July 2020). We did not case the changes on arch, and simply added
openscd-devel as a buildreq for everyone and pass CORESIGHT=1 to perf_make.
This builds fine across all arches, even though it is unnecessary.   As
coresight is an arm specific thing, it is really only used in arch/arm/util/
files and shouldn't be a problem for other architectures.  Which makes me ask,
do we trade spec complexity for more specific build command line, or do we go
the simple spec route and expect it to continue working?