src/core/packages/terminal.sgl

1;;; Terminal libraries.

2;;;

3;;; ncurses is the wide-character terminal library every terminal editor in

4;;; this channel links against. The install phase must pin `ticdir` because

5;;; ncurses' own install rule otherwise writes the compiled terminfo database

6;;; outside DESTDIR; see the note beside the `install` phase below.

7(define-library (core packages terminal)

8 (import (sigil core)

9 (core build-environments)

10 (sigil env package)

11 (sigil build external))

12 (export ncurses)

13 (begin

14 (define ncurses

15 (package

16 name: "ncurses"

17 version: "6.6"

18 source: (external-source

19 location: "https://ftp.gnu.org/gnu/ncurses/ncurses-6.6.tar.gz"

20 sha256: "355b4cbbed880b0381a04c46617b7656e362585d52e9cf84a67e2009b749ff11")

21 buildenv: core-buildenv

22 ;; ncurses with `--enable-widec` installs its headers ONLY into

23 ;; `include/ncursesw/`; `include/` itself holds no headers at all

24 ;; (measured on both built store items). A consumer compiling

25 ;; `#include <curses.h>` therefore needs that directory on its include

26 ;; path.

27 ;;

28 ;; This declaration is what replaced a hardcode. The generic builder

29 ;; used to emit `-I<dep>/include/ncursesw` for EVERY dependency of

30 ;; EVERY package: one package's directory layout baked into the builder

31 ;; for all packages alike. Now ncurses says it itself, and only

32 ;; ncurses' consumers hear it.

33 ;;

34 ;; CPATH rather than a `-I` flag because a search path is a path list,

35 ;; and measured: zig cc 0.16.0 honours CPATH in both directions

36 ;; (without it the compile fails `fatal error: 'curses.h' file not

37 ;; found`; with it, it succeeds).

38 search-paths: (list (cons "CPATH" "include/ncursesw"))

39 phases: (list

40 (external-phase

41 kind: 'configure

42 args: (list "--prefix=${out}"

43 "--without-ada"

44 "--without-tests"

45 "--without-cxx"

46 "--without-cxx-binding"

47 "--without-debug"

48 "--disable-stripping"

49 "--without-shared"

50 "--with-normal"

51 "--enable-widec"

52 "--with-default-terminfo-dir=${out}/share/terminfo"

53 "--with-terminfo-dirs=${out}/share/terminfo"))

54 (external-phase kind: 'make)

55 ;; ncurses' own install rule otherwise writes the compiled

56 ;; terminfo database outside DESTDIR, so `ticdir` has to be

57 ;; pinned. This was spelled `/tmp/sigil/build/out/...` under

58 ;; the old model; `${out}` expands to exactly the same string

59 ;; (the builder rewrote both `/out` and `/tmp/sigil/build/out`

60 ;; to the package's own prefix), so this is a rename, not a

61 ;; behaviour change.

62 (external-phase

63 kind: 'install

64 args: (list "ticdir=${out}/share/terminfo")))))))