add meson build files

Closes #116.
Closes #171.
Closes #172.
Closes #175.

scripts/meson.build

@@ -0,0 +1,45 @@
+script_conf_data = configuration_data()
+script_conf_data.set('SBINDIR', sbindir)
+
+script_dir = rc_libexecdir / 'bin'
+
+scripts_internal = [
+  'on_ac_power',
+  ]
+  
+scripts_Linux = [
+  'rc-sstat.in',
+  ]
+
+scripts_sysvinit = [
+  'halt',
+  'poweroff',
+  'shutdown',
+  'reboot',
+  ]
+
+install_data(scripts_internal,
+  install_dir : script_dir,
+  install_mode: 'rwxr-xr-x')
+
+if os == 'Linux'
+  foreach file : scripts_Linux
+    configure_file(input : file,
+      output : '@BASENAME@',
+      configuration : script_conf_data,
+      install_dir: script_dir,
+      install_mode: 'rwxr-xr-x')
+  endforeach
+  if get_option('sysvinit')
+    foreach file : scripts_sysvinit
+      configure_file(input : file,
+        output : '@BASENAME@',
+        configuration : script_conf_data,
+	    install_dir: script_dir,
+        install_mode: 'rwxr-xr-x')
+    endforeach
+  endif
+endif
+
+meson.add_install_script('meson_script_links.sh', rc_libexecdir,
+	sbindir)

scripts/meson_script_links.sh

@@ -0,0 +1,14 @@
+#!/bin/sh
+
+set -e
+set -u
+
+rc_libexecdir="$1"
+sbindir="$2"
+binaries=" halt poweroff rc-sstat reboot shutdown"
+for f in $binaries; do
+	if [ -x "${DESTDIR}${rc_libexecdir}/bin/${f}"  ]; then
+		ln -snf "${DESTDIR}${rc_libexecdir}/bin/${f}" \
+			"${DESTDIR}${sbindir}/${f}"
+	fi
+done