simplified-c-kermit

clang-format rules (InsertBraces=true is the one non-cosmetic transform, SortIncludes=true with ckcdeb.h pinned first via clang-format off/on islands, format-stability check before commit) and clangd/.clang-tidy editor config (keep in sync with the linux target's CFLAGS; spurious C++-mode diagnostics are not build errors). Use when reformatting, editing .clang-format/.clangd/.clang-tidy, or interpreting clangd diagnostics.

Signal-handling conventions - the ck_signal() sigaction wrapper (SA_RESTART, unconditional, NOT gated on CK_POSIX_SIG), the ck_sig_t handler-pointer typedef, which calls deliberately remain plain signal(), the SIGALRM longjmp timers, and the runtime signal test battery (PAUSE 2 = 2.00s, SIGINT mid-PAUSE). Use when touching signal handlers, ck_signal/ck_sig_t, timers, or anything under <signal.h>.

Detailed changelog of the 2026-06 simplification campaign - platform/feature removals (Windows/OS2/VMS, Android, SSL/Kerberos, K&R C, obsolete platform macros, dead makefile targets, ifdef COMMENT blocks) and the macro-expansion modernizations, with per-change caveats and pointers to the SIMPLIFY_*/report files. Use when investigating why code, macros, files, or makefile targets are absent; before removing anything as "obsolete"; or when planning/writing a new simplification.

Build C-Kermit (make linux → wermit), regenerate ckcpro.c after editing ckcpro.w, and verify changes are behavior-preserving — SOURCE_DATE_EPOCH byte-identical rebuild gate, per-object .o comparison, macOS/BSD