From 854f85f013c1d351fb62f8a7f3a443d834867a7e Mon Sep 17 00:00:00 2001
From: Mounir IDRASSI <mounir.idrassi@amcrypto.jp>
Date: Sun, 24 May 2026 21:34:24 +0900
Subject: [PATCH] Linux: fix language loading when running as AppImage

Fixes #1624

The language file path was hardcoded to /usr/share/veracrypt/languages/
which doesn't exist inside an AppImage runtime. Language files are
actually located under $APPDIR/usr/share/veracrypt/languages/ when
running from an AppImage.

This affected both the language file loading in Resources.cpp and the
language enumeration in PreferencesDialog.cpp, causing the language
selection to show only "System default" and "English" regardless of
which translations were packaged in the AppImage.
---
 src/Main/Forms/PreferencesDialog.cpp | 14 +++++++++++++-
 src/Main/Resources.cpp               | 13 +++++++++++--
 2 files changed, 24 insertions(+), 3 deletions(-)

diff --git a/src/Main/Forms/PreferencesDialog.cpp b/src/Main/Forms/PreferencesDialog.cpp
index 9481f7f7..9c20a886 100644
--- a/src/Main/Forms/PreferencesDialog.cpp
+++ b/src/Main/Forms/PreferencesDialog.cpp
@@ -22,6 +22,9 @@
 #include "Main/Main.h"
 #include "Main/Application.h"
 #include "Main/GraphicUserInterface.h"
+#ifdef TC_LINUX
+#include "Platform/Unix/Process.h"
+#endif
 #include "Volume/Cipher.h"
 #include "PreferencesDialog.h"
 
@@ -132,7 +135,16 @@ namespace VeraCrypt
 #if defined (TC_MACOSX)
 		wxDir languagesFolder(StringConverter::ToSingle (Application::GetExecutableDirectory()) + "/../Resources/languages/");
 #else
-		wxDir languagesFolder("/usr/share/veracrypt/languages/");
+		wxString languagesFolderPath("/usr/share/veracrypt/languages/");
+#ifdef TC_LINUX
+		if (Process::IsRunningUnderAppImage (StringConverter::ToSingle (wstring (Application::GetExecutablePath()))))
+		{
+			const char* appDirEnv = getenv ("APPDIR");
+			if (appDirEnv)
+				languagesFolderPath = wxString::FromUTF8 (appDirEnv) + "/usr/share/veracrypt/languages/";
+		}
+#endif
+		wxDir languagesFolder(languagesFolderPath);
 #endif
 		wxArrayString langArray;
 		LanguageListBox->Append("System default");
diff --git a/src/Main/Resources.cpp b/src/Main/Resources.cpp
index 729144fc..ff1192d9 100644
--- a/src/Main/Resources.cpp
+++ b/src/Main/Resources.cpp
@@ -17,13 +17,14 @@
 #ifdef TC_WINDOWS
 #include "Main/resource.h"
 #else
-#ifdef TC_MACOSX
 #include "Application.h"
-#endif
 #include "Platform/File.h"
 #include "Platform/StringConverter.h"
 #include <stdio.h>
 #include "UserPreferences.h"
+#if defined(TC_LINUX)
+#include "Platform/Unix/Process.h"
+#endif
 #endif
 
 namespace VeraCrypt
@@ -66,6 +67,14 @@ namespace VeraCrypt
 		string filenamePrefix = StringConverter::ToSingle (Application::GetExecutableDirectory()) + "/../Resources/languages/Language.";
 #else
 		string filenamePrefix("/usr/share/veracrypt/languages/Language.");
+#if defined(TC_LINUX)
+		if (Process::IsRunningUnderAppImage (StringConverter::ToSingle (wstring (Application::GetExecutablePath()))))
+		{
+			const char* appDirEnv = getenv ("APPDIR");
+			if (appDirEnv)
+				filenamePrefix = string (appDirEnv) + "/usr/share/veracrypt/languages/Language.";
+		}
+#endif
 #endif
 		string filenamePost(".xml");
 		string filename = filenamePrefix + defaultLang + filenamePost;