Hi, On Alpine Linux, building gzip from git (with the newest gnulib) and running "make check" produces 1 test failure:
FAIL: pipe-output ================= + initial_cwd_=/work/gzip-2024-05-10/tests + testdir_prefix_ + printf gt + pfx_=gt + mktempd_ /work/gzip-2024-05-10/tests gt-pipe-output.XXXX + destdir_=/work/gzip-2024-05-10/tests + template_=gt-pipe-output.XXXX + MAX_TRIES_=4 + destdir_slash_=/work/gzip-2024-05-10/tests/ + unset TMPDIR + d= + echo gt-pipe-output.XXXX + sed 's/XX*$//' + base_template_=gt-pipe-output. + echo gt-pipe-output.XXXX + wc -c + template_length_=20 + echo gt-pipe-output. + wc -c + nx_=16 + expr 20 - 16 + nx_=4 + err_= + i_=1 + : + rand_bytes_ 4 + n_=4 + chars_=abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789 + dev_rand_=/dev/urandom + test -r /dev/urandom + dd 'ibs=4' 'count=1' 'if=/dev/urandom' + LC_ALL=C tr -c abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789 01234567abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789 + return + X_=R3E2 + candidate_dir_=/work/gzip-2024-05-10/tests/gt-pipe-output.R3E2 + mkdir -m 0700 /work/gzip-2024-05-10/tests/gt-pipe-output.R3E2 + err_= + echo /work/gzip-2024-05-10/tests/gt-pipe-output.R3E2 + return + test_dir_=/work/gzip-2024-05-10/tests/gt-pipe-output.R3E2 + cd /work/gzip-2024-05-10/tests/gt-pipe-output.R3E2 + srcdir=../. + builddir=.. + export srcdir builddir + gl_init_sh_nl_=' ' + IFS=' ' + expr 1 + 128 + eval 'trap '"'"'Exit 129'"'"' 1' + trap 'Exit 129' 1 + expr 2 + 128 + eval 'trap '"'"'Exit 130'"'"' 2' + trap 'Exit 130' 2 + expr 3 + 128 + eval 'trap '"'"'Exit 131'"'"' 3' + trap 'Exit 131' 3 + expr 13 + 128 + eval 'trap '"'"'Exit 141'"'"' 13' + trap 'Exit 141' 13 + expr 15 + 128 + eval 'trap '"'"'Exit 143'"'"' 15' + trap 'Exit 143' 15 + saved_IFS=' ' + IFS=: + new_PATH= + sep_= + test -d /work/gzip-2024-05-10/. + new_PATH=/work/gzip-2024-05-10 + sep_=: + test -d /usr/local/sbin/. + continue + test -d /usr/local/bin/. + new_PATH=/work/gzip-2024-05-10:/usr/local/bin + sep_=: + test -d /usr/sbin/. + new_PATH=/work/gzip-2024-05-10:/usr/local/bin:/usr/sbin + sep_=: + test -d /usr/bin/. + new_PATH=/work/gzip-2024-05-10:/usr/local/bin:/usr/sbin:/usr/bin + sep_=: + test -d /sbin/. + new_PATH=/work/gzip-2024-05-10:/usr/local/bin:/usr/sbin:/usr/bin:/sbin + sep_=: + test -d /bin/. + new_PATH=/work/gzip-2024-05-10:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin + sep_=: + IFS=' ' + PATH=/work/gzip-2024-05-10:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin + export PATH + trap remove_tmp_ EXIT + path_prepend_ .. + test 1 '!=' 0 + path_dir_=.. + abs_path_dir_=/work/gzip-2024-05-10/tests/.. + PATH=/work/gzip-2024-05-10/tests/..:/work/gzip-2024-05-10:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin + create_exe_shims_ /work/gzip-2024-05-10/tests/.. + return 0 + shift + test 0 '!=' 0 + export PATH + sleep 0.01 + sleep_amount=0.01 + echo a + echo b + gzip a + gzip b + trap PIPE + sleep 0.01 + : + cat cat: write error: Broken pipe + echo 1 + cat_status=1 + test 1 -lt 1 + trap PIPE + sleep 0.01 + : + gunzip gzip: stdout: Broken pipe + echo 2 + cmd_status=2 + test 1 -lt 2 + test 2 -lt 128 + cmd_status=1 + test 1 -eq 1 + trap PIPE + sleep 0.01 + : + gunzip -q + echo 2 + cmd_status=2 + test 1 -lt 2 + test 2 -lt 128 + cmd_status=1 + test 1 -eq 1 + trap PIPE + sleep 0.01 + : + gzip -d gzip: stdout: Broken pipe + echo 2 + cmd_status=2 + test 1 -lt 2 + test 2 -lt 128 + cmd_status=1 + test 1 -eq 1 + trap PIPE + sleep 0.01 + : + gzip -dq + echo 2 + cmd_status=2 + test 1 -lt 2 + test 2 -lt 128 + cmd_status=1 + test 1 -eq 1 + trap PIPE + sleep 0.01 + : + zcat gzip: stdout: Broken pipe + echo 2 + cmd_status=2 + test 1 -lt 2 + test 2 -lt 128 + cmd_status=1 + test 1 -eq 1 + trap PIPE + sleep 0.01 + : + zcmp - b.gz + echo 1 + cmd_status=1 + test 1 -lt 1 + test 1 -eq 1 + trap PIPE + sleep 0.01 + : + zdiff - b.gz + echo 1 + cmd_status=1 + test 1 -lt 1 + test 1 -eq 1 + trap PIPE + sleep 0.01 + : + zgrep a + echo 0 + cmd_status=0 + test 1 -lt 0 + test 1 -eq 0 + fail=1 + : PIPE + sleep 0.01 + : + cat + echo 141 + cat_status=141 + test 1 -lt 141 + test 141 -lt 128 + : PIPE + sleep 0.01 + : + gunzip + echo 141 + cmd_status=141 + test 1 -lt 141 + test 141 -lt 128 + test 141 -eq 141 + : PIPE + sleep 0.01 + : + gunzip -q + echo 141 + cmd_status=141 + test 1 -lt 141 + test 141 -lt 128 + test 141 -eq 141 + : PIPE + sleep 0.01 + : + gzip -d + echo 141 + cmd_status=141 + test 1 -lt 141 + test 141 -lt 128 + test 141 -eq 141 + : PIPE + sleep 0.01 + : + gzip -dq + echo 141 + cmd_status=141 + test 1 -lt 141 + test 141 -lt 128 + test 141 -eq 141 + : PIPE + sleep 0.01 + : + zcat + echo 141 + cmd_status=141 + test 1 -lt 141 + test 141 -lt 128 + test 141 -eq 141 + : PIPE + sleep 0.01 + : + zcmp - b.gz + echo 141 + cmd_status=141 + test 1 -lt 141 + test 141 -lt 128 + test 141 -eq 141 + : PIPE + sleep 0.01 + : + zdiff - b.gz + echo 141 + cmd_status=141 + test 1 -lt 141 + test 141 -lt 128 + test 141 -eq 141 + : PIPE + sleep 0.01 + : + zgrep a + echo 141 + cmd_status=141 + test 1 -lt 141 + test 141 -lt 128 + test 141 -eq 141 + Exit 1 + set +e + exit 1 + exit 1 + remove_tmp_ + __st=1 + cleanup_ + : + test '=' yes + cd /work/gzip-2024-05-10/tests + chmod -R u+rwx /work/gzip-2024-05-10/tests/gt-pipe-output.R3E2 + rm -rf /work/gzip-2024-05-10/tests/gt-pipe-output.R3E2 + exit 1 FAIL pipe-output (exit status: 1) The piece that fails is: + trap PIPE + sleep 0.01 + : + zgrep a + echo 0 + cmd_status=0 + test 1 -lt 0 + test 1 -eq 0 + fail=1 Likewise on macOS 11 and 12. On Solaris 11 OmniOS, pipe-output fails as well, but here it's a different piece that fails: ++ : '' PIPE ++ sleep 0.01 ++ : ++ zdiff - b.gz ++ echo 1 + cmd_status=1 + test 1 -lt 1 + test 141 -eq 1 + fail=1 You can see the full logs at [1]. If you want to get write access to this CI project, let me know; I can do that. [1] https://github.com/gnu-gzip/ci-check/actions/runs/9034383029
