GTK+: Add appdatadir to meson build for Snes9x-only files.

gtk/data/meson.build

@@ -1,5 +1,4 @@
-datadir = join_paths(get_option('prefix'), get_option('datadir'))
-install_data('../../data/cheats.bml')
+install_data('../../data/cheats.bml', install_dir: appdatadir)
 install_data('snes9x.desktop', install_dir: join_paths(datadir, 'applications'))
 
 hicolor = join_paths(datadir, 'icons', 'hicolor')

gtk/meson.build

@@ -5,9 +5,6 @@ project('snes9x-gtk',
                           'buildtype=release',
                           'strip=true'])
 
-subdir('po')
-subdir('data')
-
 args = [ '-DSNES9X_GTK', '-DUNZIP_SUPPORT', '-DNETPLAY_SUPPORT', '-DJMA_SUPPORT', '-Wall', '-W', '-Wno-unused-parameter' ]
 srcs = []
 deps = []
@@ -15,8 +12,15 @@ includes = [ '../apu/bapu', '../', 'src' ]
 
 prefix = get_option('prefix')
 localedir = join_paths(prefix, get_option('localedir'))
-datadir = join_paths(prefix, get_option('datadir'), 'snes9x')
-args += [ '-DDATADIR="' + datadir + '"', '-DSNES9XLOCALEDIR="' + localedir + '"' ]
+datadir = get_option('datadir')
+appdatadir = get_option ('appdatadir')
+if appdatadir == ''
+  appdatadir = join_paths(prefix, datadir, 'snes9x')
+endif
+args += [ '-DDATADIR="' + appdatadir + '"', '-DSNES9XLOCALEDIR="' + localedir + '"' ]
+
+subdir('data')
+subdir('po')
 
 glib_dep = dependency('glib-2.0', version: '> 2.28')
 gthread_dep = dependency('gthread-2.0', version: '>= 2.6')

gtk/meson_options.txt

@@ -14,3 +14,4 @@ option('gtk3',            type: 'boolean', value: true,  description: 'Build wit
 option('wayland',         type: 'boolean', value: true,  description: 'Build support for Wayland')
 option('gtk2',            type: 'boolean', value: false, description: 'Build with GTK+ 2.0 as the toolkit')
 option('dangerous-hacks', type: 'boolean', value: false, description: 'Allow dangerous hacks to be enabled')
+option('appdatadir',      type: 'string' , value: '',    description: 'Snes9x-only data directory')