d917798090
zsh's configure will happily build without a terminal library -- the probe is AC_SEARCH_LIBS, which is soft -- and produce a shell whose cursor cannot move and whose arrow keys do nothing. ZLE is the reason to want zsh, so this comes first. MIT, so it combines with Apache-2.0 without conditions. Built static, widec (which is what zsh looks for first, and the console's UTF-8 decoder can already take), and --disable-database --with-fallbacks so seven terminal descriptions are compiled into the library. SchOS has no business shipping /usr/share/terminfo, and with the fallbacks the .a is self-contained: verified that no terminfo path strings survive in the binary. Nothing reaches sysroot/ -- a static library is not a file the OS ships -- so `install` means into $(PREFIX). port.mk gains NCURSES beside MUSL for the same reason MUSL is there. tinfotest.c is the acceptance test, and asks the question the build cannot: not "did it link" but "does terminfo work on a SchOS console". It reports TIOCGWINSZ, initialises from the compiled-in fallback, and names every capability ZLE binds. Anything MISSING there is a missing feature in the shell later. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01VQ7Qx8E1q1M1bbCq8QLHS2
115 lines
4.4 KiB
Makefile
115 lines
4.4 KiB
Makefile
# SPDX-License-Identifier: Apache-2.0
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# ncurses -- terminal capability database and screen library, MIT:
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# https://invisible-island.net/ncurses/
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#
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# Here because zsh's line editor is the reason to want zsh, and the line editor
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# drives the terminal through tigetstr/tputs. zsh's configure will happily build
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# without a terminal library -- AC_SEARCH_LIBS is soft -- and produce a shell
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# whose cursor cannot move and whose arrow keys do nothing. So this comes first.
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#
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# Unlike every other port, nothing here reaches sysroot/. ncurses is built
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# static and consumed at link time by zsh; `install` means "into $(PREFIX)".
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#
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# The awkward part of ncurses is that it is a library whose data is a database.
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# Normally that database is ~4000 compiled terminal descriptions under
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# /usr/share/terminfo, which SchOS has no business shipping. --disable-database
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# plus --with-fallbacks compiles a chosen handful directly into the library, so
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# the resulting .a is self-contained and the filesystem stays clean.
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include ../mk/port.mk
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NC_VERSION := 6.4
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NC_URL := https://ftp.gnu.org/gnu/ncurses/ncurses-$(NC_VERSION).tar.gz
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NC_SHA256 := 6931283d9ac87c5073f30b6290c4c75f21632bb4fc3603ac8100812bed248159
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TARBALL := $(DISTDIR)/ncurses-$(NC_VERSION).tar.gz
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# The terminal types compiled into the library. `linux` is what SchOS's own
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# console is closest to and what TERM is set to; the rest are here so a serial
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# console or an ssh client from a real machine still gets a working editor.
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# Every name added is bytes in the binary, so this list is deliberately short.
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NC_FALLBACKS := linux,vt100,vt102,xterm,xterm-256color,screen,dumb
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# Cross-compiling ncurses needs tic and infocmp *on the host* to turn those
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# names into C. Both exist here; the paths are looked up rather than written
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# down because on NixOS they live in the store and move on every update.
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HOST_TIC ?= $(shell command -v tic)
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HOST_INFOCMP ?= $(shell command -v infocmp)
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# gcc, for the same reason fastfetch uses it: -print-libgcc-file-name.
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HOSTCC_NC ?= gcc
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GCC_INC := $(shell $(HOSTCC_NC) -print-file-name=include)
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LIBGCC := $(shell $(HOSTCC_NC) -print-libgcc-file-name)
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# Split exactly as autoconf consumes them: it links a test as
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# $CC $CFLAGS $LDFLAGS conftest.c $LIBS
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# so crt1.o/crti.o must ride in LDFLAGS (before the object) and libc in LIBS
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# (after it). libc twice -- libgcc reaches back into it, and a static link
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# resolves left to right.
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NC_CPPFLAGS := -nostdinc -isystem $(MUSL)/include -isystem $(GCC_INC) -D__SCHOS__
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NC_CFLAGS := -O2 $(CFLAGS_BT)
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NC_LDFLAGS := -static -nostdlib -L$(MUSL)/lib $(MUSL)/lib/crt1.o $(MUSL)/lib/crti.o
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NC_LIBS := $(MUSL)/lib/libc.a $(LIBGCC) $(MUSL)/lib/libc.a $(MUSL)/lib/crtn.o
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# ncurses builds make_hash and make_keys to run during the build, not on the
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# target. In a cross build those must be compiled for the host, with the host's
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# own libc -- hence a second, completely separate set of flags.
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NC_BUILD_CC := $(HOSTCC_NC)
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NC_CONFIGURE := \
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--host=x86_64-linux-musl \
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--build=x86_64-pc-linux-gnu \
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--prefix=$(PREFIX) \
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--disable-database \
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--with-fallbacks=$(NC_FALLBACKS) \
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--with-tic-path=$(HOST_TIC) \
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--with-infocmp-path=$(HOST_INFOCMP) \
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--without-shared --with-normal \
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--enable-widec \
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--enable-overwrite \
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--without-cxx --without-cxx-binding \
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--without-ada --without-tests --without-progs --without-manpages \
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--without-debug --without-profile \
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--disable-stripping \
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--disable-home-terminfo \
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--disable-rpath-hack
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$(TARBALL): | $(DISTDIR)
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curl -fsSL -o $@ $(NC_URL)
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sh $(SHA256CHECK) "$(NC_SHA256)" "$@"
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download: $(TARBALL)
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$(SRCDIR): $(TARBALL)
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mkdir -p $(PORTDIR)
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tar -xzf $< -C $(PORTDIR)
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mv $(PORTDIR)/ncurses-$(NC_VERSION) $@
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extract: $(SRCDIR)
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$(BUILDDIR)/config.status: | $(SRCDIR)
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@test -n "$(HOST_TIC)" -a -n "$(HOST_INFOCMP)" || { \
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echo "ncurses: host tic/infocmp not found -- install ncurses on the build host" >&2; \
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exit 1; }
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mkdir -p $(BUILDDIR)
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cd $(BUILDDIR) && \
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CC="$(HOSTCC_NC)" \
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CPPFLAGS="$(NC_CPPFLAGS)" \
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CFLAGS="$(NC_CFLAGS)" \
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LDFLAGS="$(NC_LDFLAGS)" \
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LIBS="$(NC_LIBS)" \
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BUILD_CC="$(NC_BUILD_CC)" \
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BUILD_CPPFLAGS= BUILD_CFLAGS= BUILD_LDFLAGS= BUILD_LIBS= \
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$(SRCDIR)/configure $(NC_CONFIGURE)
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$(PREFIX)/lib/libncursesw.a: $(BUILDDIR)/config.status
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$(MAKE) -C $(BUILDDIR)
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$(MAKE) -C $(BUILDDIR) install
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build install: $(PREFIX)/lib/libncursesw.a
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clean:
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rm -rf $(PORTDIR)
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distclean: clean
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rm -f $(TARBALL)
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