meson: optionalize terminfo dependency

ncurses on FreeBSD still uses termcap(5) while foot works fine with
xterm-256color sans status line and visible bell. Having more than
one ncurses version installed may break other applications.

Document -Dterminfo=false uses --term=xterm-256color by default

config.c

@@ -1956,7 +1956,11 @@ config_load(struct config *conf, const char *conf_path,
     bool ret = false;
 
     *conf = (struct config) {
+#ifdef HAVE_TERMINFO
         .term = xstrdup("foot"),
+#else
+        .term = xstrdup("xterm-256color"),
+#endif
         .shell = get_shell(),
         .title = xstrdup("foot"),
         .app_id = xstrdup("foot"),

doc/foot.ini.5.scd

@@ -111,7 +111,8 @@ in this order:
 	by prepending a '-' to argv[0]. Default: _no_.
 
 *term*
-	Value to set the environment variable *TERM* to. Default: _foot_.
+	Value to set the environment variable *TERM* to. Default: _foot_
+	or _xterm-256color_ if built with _-Dterminfo=false_
 
 *title*
 	Initial window title. Default: _foot_.

foot.ini

@@ -10,7 +10,7 @@
 # initial-window-mode=windowed
 # pad=2x2
 # shell=$SHELL (if set, otherwise user's default shell from /etc/passwd)
-# term=foot
+# term=foot (or xterm-256color if built with -Dterminfo=false)
 # login-shell=no
 # workers=<number of logical CPUs>
 # bold-text-in-bright=no

meson.build

@@ -72,6 +72,11 @@ fontconfig = dependency('fontconfig')
 tllist = dependency('tllist', version: '>=1.0.4', fallback: 'tllist')
 fcft = dependency('fcft', version: ['>=2.3.0', '<3.0.0'], fallback: 'fcft')
 
+tic = find_program('tic', native: true, required: get_option('terminfo'))
+if tic.found()
+  add_project_arguments('-DHAVE_TERMINFO', language: 'c')
+endif
+
 wayland_protocols_datadir = wayland_protocols.get_pkgconfig_variable('pkgdatadir')
 
 wscanner = dependency('wayland-scanner', native: true)
@@ -191,14 +196,15 @@ executable(
   version,
   install: true)
 
-tic = find_program('tic', native: true)
-custom_target(
-  'terminfo',
-  output: 'f',
-  input: 'foot.info',
-  command: [tic, '-x', '-o', '@OUTDIR@', '-e', 'foot,foot-direct', '@INPUT@'],
-  install: true,
-  install_dir: join_paths(get_option('datadir'), 'terminfo'))
+if tic.found()
+  custom_target(
+    'terminfo',
+    output: 'f',
+    input: 'foot.info',
+    command: [tic, '-x', '-o', '@OUTDIR@', '-e', 'foot,foot-direct', '@INPUT@'],
+    install: true,
+    install_dir: join_paths(get_option('datadir'), 'terminfo'))
+endif
 
 install_data(
   'LICENSE', 'README.md', 'CHANGELOG.md',

meson_options.txt

@@ -1 +1,2 @@
 option('ime', type: 'boolean', value: true, description: 'IME (Input Method Editor) support')
+option('terminfo', type: 'boolean', value: true, description: 'Install terminfo')