• Arnaldo Carvalho de Melo's avatar
    tools lib bpf: Provide wrapper for strerror_r to build in !_GNU_SOURCE systems · 6d41907c
    Arnaldo Carvalho de Melo authored
    Same problem that got fixed in a similar fashion in tools/perf/ in
    c8b5f2c9 ("tools: Introduce str_error_r()"), fix it in the same
    way, licensing needs to be sorted out to libbpf to use libapi, so,
    for this simple case, just get the same wrapper in tools/lib/bpf.
    
    This makes libbpf and its users (bpftool, selftests, perf) to build
    again in Alpine Linux 3.[45678] and edge.
    Acked-by: default avatarAlexei Starovoitov <ast@kernel.org>
    Cc: Adrian Hunter <adrian.hunter@intel.com>
    Cc: Daniel Borkmann <daniel@iogearbox.net>
    Cc: David Ahern <dsahern@gmail.com>
    Cc: Hendrik Brueckner <brueckner@linux.ibm.com>
    Cc: Jakub Kicinski <jakub.kicinski@netronome.com>
    Cc: Jiri Olsa <jolsa@kernel.org>
    Cc: Martin KaFai Lau <kafai@fb.com>
    Cc: Namhyung Kim <namhyung@kernel.org>
    Cc: Quentin Monnet <quentin.monnet@netronome.com>
    Cc: Thomas Richter <tmricht@linux.ibm.com>
    Cc: Wang Nan <wangnan0@huawei.com>
    Cc: Yonghong Song <yhs@fb.com>
    Fixes: 1ce6a9fc ("bpf: fix build error in libbpf with EXTRA_CFLAGS="-Wp, -D_FORTIFY_SOURCE=2 -O2"")
    Link: https://lkml.kernel.org/r/20180917151636.GA21790@kernel.orgSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
    6d41907c
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