Bump minimum wxWidgets version to 3.2.2

This is what Debian stable currently ships. Bumping to 3.2.2 in
particular brings a lot of improvements for high DPI support, which will
be necessary for upcoming commits.

meson.build

@@ -149,10 +149,10 @@ else
     endif
 
     opt_var = cmake.subproject_options()
-    opt_var.set_override_option('cpp_std', 'c++14')
+    opt_var.set_override_option('cpp_std', 'c++20')
     opt_var.add_cmake_defines({
         'wxBUILD_INSTALL': false,
-        'wxBUILD_PRECOMP': false,       # otherwise breaks project generation w/ meson
+        'wxBUILD_PRECOMP': 'OFF',       # otherwise breaks project generation w/ meson
         'wxBUILD_SHARED': build_shared,
 
         'wxUSE_WEBVIEW': false,         # breaks build on linux

meson_options.txt

@@ -16,7 +16,7 @@ option('csri', type: 'feature', description: 'CSRI support')
 option('system_luajit', type: 'boolean', value: false, description: 'Force using system luajit')
 option('local_boost', type: 'boolean', value: false, description: 'Force using locally compiled Boost')
 
-option('wx_version', type: 'string', value: '3.0.0', description: 'The minimum wxWidgets version to use')
+option('wx_version', type: 'string', value: '3.2.2', description: 'The minimum wxWidgets version to use')
 
 option('credit', type: 'string', value: '', description: 'Build credit shown in program title')
 option('official_release', type: 'boolean', value: false, description: 'Set on official builds')

subprojects/wxWidgets.wrap

@@ -1,5 +1,5 @@
 [wrap-git]
 directory = wxWidgets
 url = https://github.com/wxWidgets/wxWidgets.git
-revision = v3.1.4
+revision = v3.2.2
 clone-recursive = true