perf scripting perl: Fix compile error with some perl5 versions
authorWang YanQing <udknight@gmail.com>
Sun, 12 Feb 2017 02:46:55 +0000 (10:46 +0800)
committerArnaldo Carvalho de Melo <acme@redhat.com>
Mon, 13 Feb 2017 20:22:32 +0000 (17:22 -0300)
commitd7dd112ea5cacf91ae72c0714c3b911eb6016fea
treeec789af7564a1c6ef54a90b7a28d603c526eff3c
parentbe57b3fd218ad4a19725ac4bd53e67b2ede42a9d
perf scripting perl: Fix compile error with some perl5 versions

Fix below compile error:

  CC       util/scripting-engines/trace-event-perl.o
  In file included from /usr/lib/perl5/5.22.2/i686-linux/CORE/perl.h:5673:0,
                   from util/scripting-engines/trace-event-perl.c:31:
  /usr/lib/perl5/5.22.2/i686-linux/CORE/inline.h: In function 'S__is_utf8_char_slow':
  /usr/lib/perl5/5.22.2/i686-linux/CORE/inline.h:270:5: error: nested extern declaration of 'Perl___notused' [-Werror=nested-externs]
          dTHX;   /* The function called below requires thread context */
     ^
  cc1: all warnings being treated as errors

After digging perl5 repository, I find out that we will meet this
compile error with perl from v5.21.1 to v5.25.4

Signed-off-by: Wang YanQing <udknight@gmail.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Link: http://lkml.kernel.org/r/20170212024655.GA15997@udknight
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
tools/perf/util/scripting-engines/Build