Delete readline/ (the vendored GNU readline 4.3, ~104 files / 2 MB) now that
configure requires the system readline (Patch 1) and the Makefiles no longer
wire the bundled build (Patch 2). Sweep the remaining references:
* commands/Makefile.in: drop the `module: ${MAGICDIR}/readline/readline` rule
and the readline-create-symlinks delegation (bundled-only; commands now uses
the default `module: libcommands.o`).
* commands/CmdFI.c, textio/txMain.c, textio/txInput.c: the readline includes
had a `#ifdef HAVE_READLINE <system> #else "readline/readline/*.h" (bundled)`
split. HAVE_READLINE/NEED_READLINE are used nowhere else and USE_READLINE now
always implies the system library, so collapse to the plain
`#include <readline/readline.h>` / `<history.h>`.
* CI: main.yml's non-Tcl job installs libreadline-dev (was relying on bundled);
canary-matrix drops the now-invalid no_tk_tcl_brl / --enable-readline-bundled
variant.
* .gitignore: drop the "readline/ intentionally not converted" note.
Verified: Tcl -j12 builds+installs 375 files (commands builds, no readline-dir
references); --without-tcl --disable-readline -j12 builds (x2); --without-tcl with
no readline dev package still errors with the guidance message.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
When global <sys/mman.h> was removed from tile.h it also removed
<unistd.h> nearby. This exposes the lack of <unistd.h> being
included where needed using APIs like close()/read()/unlink()/isatty()
the WASM build seems to show this as the header file set is structured
differently.
This commit related to the dynamic creation of data that is used
to parse commands and options via Lookup.
windows/windows.h: Lookup() constify call-site
tcltk/tclmagic.c: Lookup() constify call-site
graphics/W3Dmain.c: Lookup() constify call-site
windows/windSend.c: Lookup() constify call-site
windows/windMain.c: Lookup() constify call-site
windows/windInt.h: Lookup() constify call-site
textio/txMain.c: Lookup() constify call-site
Darryl L. Miles
Alessandro De Laurenzis
Tim Edwards