From b6af53b7d6fa40262c16753fe2781a3e792d5e1b Mon Sep 17 00:00:00 2001 From: Jiri Olsa Date: Wed, 8 Nov 2017 16:43:09 +0100 Subject: [PATCH] perf tools: Add "reject" option for parse-events.l Arnaldo reported broken builds in some distros using a newer flex release, 2.6.4, found in Alpine Linux 3.6 and Edge, with flex not spotting the REJECT macro: CC /tmp/build/perf/util/parse-events-flex.o util/parse-events.l: In function 'parse_events_lex': /tmp/build/perf/util/parse-events-flex.c:4734:16: error: \ 'reject_used_but_not_detected' undeclared (first use in this function) It's happening because we put the REJECT under another USER_REJECT macro in following commit: 9445464bb831 perf tools: Unwind properly location after REJECT Fortunately flex provides option for force it to use REJECT, adding it to parse-events.l. Reported-by: Arnaldo Carvalho de Melo Reported-by: Markus Trippelsdorf Signed-off-by: Jiri Olsa Reviewed-by: Andi Kleen Tested-by: Arnaldo Carvalho de Melo Cc: Namhyung Kim Fixes: 9445464bb831 ("perf tools: Unwind properly location after REJECT") Link: http://lkml.kernel.org/n/tip-7kdont984mw12ijk7rji6b8p@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/parse-events.l | 1 + 1 file changed, 1 insertion(+) diff --git a/tools/perf/util/parse-events.l b/tools/perf/util/parse-events.l index 6680e4fb7967..dc5f40e86e51 100644 --- a/tools/perf/util/parse-events.l +++ b/tools/perf/util/parse-events.l @@ -5,6 +5,7 @@ %option stack %option bison-locations %option yylineno +%option reject %{ #include -- 2.20.1