perf build: Improve error message for old/missing clang

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clang is required to build perf with BUILD_BPF_SKEL=1. Improve the
error message to highlight that:

  1) clang could be either missing or too old;
  2) clang is only required with BUILD_BPF_SKEL=1.

Suggested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Song Liu <song@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

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Song Liu 2021-05-09 23:49:17 -07:00 • committed by Arnaldo Carvalho de Melo

parent 8df12cbc0f

commit efb0b23281

1 changed files with 1 additions and 1 deletions

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tools/perf/Makefile.config

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