diff --git a/src/Makefile.am b/src/Makefile.am
index c81bd69..5738034 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -24,6 +24,7 @@ spek_CFLAGS = \
 	@CFLAGS@
 
 spek_CXXFLAGS = \
+	$(SPEK_CFLAGS) \
 	@CXXFLAGS@
 
 spek_LDADD = \
diff --git a/src/spek-platform.c b/src/spek-platform.c
index 9c22456..d70d514 100644
--- a/src/spek-platform.c
+++ b/src/spek-platform.c
@@ -32,55 +32,6 @@
 
 #include "spek-platform.h"
 
-gchar *spek_platform_locale_dir () {
-    static gchar *locale_dir = NULL;
-
-    if (!locale_dir) {
-#ifdef G_OS_WIN32
-        gchar *win32_dir;
-
-        win32_dir = g_win32_get_package_installation_directory_of_module (NULL);
-        locale_dir = g_build_filename (win32_dir, "share", "locale", NULL);
-
-        g_free (win32_dir);
-#else
-#ifdef G_OS_DARWIN
-        GtkOSXApplication *app = NULL;
-        const gchar *res_dir;
-
-        app = g_object_new (GTK_TYPE_OSX_APPLICATION, NULL);
-        res_dir = gtk_osxapplication_get_resource_path (app);
-        locale_dir = g_build_filename (res_dir, "share", "locale", NULL);
-#else
-        locale_dir =  LOCALEDIR;
-#endif
-#endif
-    }
-
-    return locale_dir;
-}
-
-void spek_platform_show_uri (const gchar *uri) {
-#ifdef G_OS_WIN32
-    /* gtk_show_uri doesn't work on Windows... */
-    ShellExecuteA (NULL, "open", uri, "", NULL, SW_SHOWNORMAL);
-#else
-#ifdef G_OS_DARWIN
-    /* ...or on OS X */
-    CFStringRef str = NULL;
-    CFURLRef url = NULL;
-
-    str = CFStringCreateWithCString (NULL, uri, kCFStringEncodingASCII);
-    url = CFURLCreateWithString (NULL, str, NULL);
-    LSOpenCFURLRef (url, NULL);
-    CFRelease (url);
-    CFRelease (str);
-#else
-    gtk_show_uri (NULL, uri, gtk_get_current_event_time (), NULL);
-#endif
-#endif
-}
-
 gchar *spek_platform_read_line (const gchar *uri) {
 #ifdef G_OS_DARWIN
     /* GIO doesn't work on OS X */
@@ -123,11 +74,3 @@ gchar *spek_platform_read_line (const gchar *uri) {
     return line;
 #endif
 }
-
-gdouble spek_platform_get_font_scale () {
-#ifdef G_OS_DARWIN
-    /* Pango/Quartz fonts are smaller than on X. */
-    return 1.4;
-#endif
-    return 1.0;
-}
diff --git a/src/spek-platform.cc b/src/spek-platform.cc
index 987a88d..b45fe90 100644
--- a/src/spek-platform.cc
+++ b/src/spek-platform.cc
@@ -37,6 +37,15 @@ wxString SpekPlatform::ConfigPath(const wxString& app_name)
     return file_name.GetFullPath();
 }
 
+bool SpekPlatform::CanChangeLanguage()
+{
+#ifdef OS_UNIX
+    return false;
+#else
+    return true;
+#endif
+}
+
 char * spek_platform_short_path(const char *path)
 {
 #ifdef OS_WIN
diff --git a/src/spek-platform.hh b/src/spek-platform.hh
index 703b14f..5398253 100644
--- a/src/spek-platform.hh
+++ b/src/spek-platform.hh
@@ -27,6 +27,10 @@ class SpekPlatform
 public:
     // Not quite XDG-compatible, but close enough.
     static wxString ConfigPath(const wxString& app_name);
+
+    // Setting non-default locale under GTK+ is tricky (see e.g. how FileZilla does it). We will
+    // just disable the language setting for GTK+ users and will always use the system locale.
+    static bool CanChangeLanguage();
 };
 
 extern "C" {
diff --git a/src/spek.cc b/src/spek.cc
index 6e0f281..a8ae66d 100644
--- a/src/spek.cc
+++ b/src/spek.cc
@@ -19,6 +19,7 @@
 #include <wx/cmdline.h>
 #include <wx/log.h>
 
+#include "spek-audio.h"
 #include "spek-preferences.hh"
 
 #include "spek-window.hh"
@@ -36,6 +37,7 @@ IMPLEMENT_APP(Spek)
 bool Spek::OnInit()
 {
     SpekPreferences::Get().Init();
+    spek_audio_init();
 
     if (!wxApp::OnInit()) {
         return false;
diff --git a/src/spek.vala b/src/spek.vala
deleted file mode 100644
index 801594b..0000000
--- a/src/spek.vala
+++ /dev/null
@@ -1,39 +0,0 @@
-/* spek.vala
- *
- * Copyright (C) 2010-2011  Alexander Kojevnikov <alexander@kojevnikov.com>
- *
- * Spek is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * Spek is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Spek.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-namespace Spek {
-    bool version = false;
-    [CCode (array_length = false, array_null_terminated = true)]
-    string[] files = null;
-
-    int main (string[] args) {
-        if (Preferences.instance.language.length > 0) {
-            Environment.set_variable ("LANGUAGE", Preferences.instance.language, true);
-        }
-
-        Audio.init ();
-        var file_name = files == null ? null : files[0];
-        if (file_name != null && file_name.has_prefix ("file://")) {
-            try {
-                file_name = Filename.from_uri (file_name);
-            } catch (ConvertError e) {
-            }
-        }
-        return 0;
-    }
-}
\ No newline at end of file