• Arnaldo Carvalho de Melo's avatar
    perf header: Fix build on old systems · a9072bc0
    Arnaldo Carvalho de Melo authored
    
    
    For instance, on Fedora 8:
    
    CC /home/acme/git/build/perf/util/header.o
    cc1: warnings being treated as errors
    util/header.c: In function ‘write_cpudesc’:
    util/header.c:281: warning: implicit declaration of function ‘getline’
    util/header.c:281: warning: nested extern declaration of ‘getline’
    make: *** [/home/acme/git/build/perf/util/header.o] Error 1
    make: Leaving directory `/home/acme/git/linux/tools/perf'
    [acme@localhost linux]$
    
    This happens due to header ordering, in perf util.h sets _GNU_SOURCE, so
    it must come first.
    Reported-by: default avatarIngo Molnar <mingo@elte.hu>
    Cc: David Ahern <dsahern@gmail.com>
    Cc: Frederic Weisbecker <fweisbec@gmail.com>
    Cc: Mike Galbraith <efault@gmx.de>
    Cc: Paul Mackerras <paulus@samba.org>
    Cc: Peter Zijlstra <peterz@infradead.org>
    Cc: Stephane Eranian <eranian@google.com>
    Link: http://lkml.kernel.org/n/tip-alfra9wao63euguj7gr8jw7e@git.kernel.org
    
    Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
    a9072bc0