Convert main source file from Vala to C

Bindings are incredible pain, this will be much easier.

meson.build

@@ -7,8 +7,8 @@ conf = configuration_data()
 conf.set('CMAKE_PROJECT_NAME', meson.project_name())
 conf.set('project_VERSION', meson.project_version())
 configure_file(
-	input : 'config.vala.in',
-	output : 'config.vala',
+	input : 'config.h.in',
+	output : 'config.h',
 	configuration : conf,
 )
 
@@ -20,18 +20,13 @@ dependencies = [
 	dependency('gee-0.8'),
 	dependency('sqlite3'),
 	dependency('x11'),
-
-	# Only because of flock
-	meson.get_compiler('vala').find_library('posix'),
-
-	# Ours
 	dependency('xext'),
 	dependency('xextproto'),
 ]
-sources = files(
-	'wdmtg.vala',
-	meson.current_build_dir() / 'config.vala',
-)
-executable('wdmtg', sources,
-	install : true,
+gui = static_library('gui', 'gui.vala', 'config.vapi',
+	install : false,
 	dependencies : dependencies)
+executable('wdmtg', 'wdmtg.c',
+	install : true,
+	link_with : [gui],
+	dependencies : [dependencies])