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Arnaldo Carvalho de Melo authored
These were only defined if _GNU_SOURCE was set in older glibc versions, check that and provide the defines in such cases. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-b8esouhpg4tk6vi4n3d7ipch@git.kernel.orgSigned-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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