The suite and seven libs assumed a GNU userland: `cmd | grep -q` under
pipefail (grep exits at the first match, the producer takes SIGPIPE,
rc 141 → 15 false "merged into" FAILs in gitflow-test), `sed -i` with no
suffix, `wc -l` padding compared as a string, `stat -c`, `touch -d`,
`realpath -m` (gstack-links refusal never fired), bare `timeout` off the
sanitized PATH (design gate READY BUT UNVERIFIED), `grep -oP` (update-all
emptied the plugin list). Thirteen suites were red on this machine.
Portable forms on the native userland of both OS: producer captured out
of the pipeline, `sed -i.bak` in tests and a temp-sibling `sed_profile`
on the user dotfile, `tr -d ' '`, python3 perms, `touch -t`, a
`realpath -m` emulation that refuses `..`, perl `alarm` for the 15 s
bound, `sed -n` token extraction. Regression tests: gstack-links T4b,
doctrine-citers Alphabet/Alpha flip, profile-set-managed T18 (failing CLI
no longer aborts `set`), new portability-census suite over the tracked
shell files. Linux run deferred (see TODO).
skip_kind matched SKIP_SUBSTRINGS as plain substrings, so 'xit(' hit
exit(, SystemExit( and process.exit(, and 'fit(' hit model.fit( and
profit(, flagging FLOOR SKIP on ordinary test-file lines (BLK-023). The
four bare identifiers (xit, fit, xdescribe, fdescribe) now match through
SKIP_IDENT_RE with an identifier-boundary lookbehind; the dotted and
decorator forms stay substrings. Flip-test fixtures cover the false
positive (RED before, GREEN after) and the three focus/skip calls.
bchanot