From f7496475674792360f1f81f72026b127b5d19616 Mon Sep 17 00:00:00 2001
From: Ilya Fedin <fedin-ilja2010@ya.ru>
Date: Mon, 26 Oct 2020 07:27:17 +0400
Subject: [PATCH] Check Qt version in runtime in CanOpenDirectoryWithPortal

It is not guaranteed that app is running with the same Qt version that was compiled
---
 .../platform/linux/specific_linux.cpp          | 18 ++++++++++++++----
 1 file changed, 14 insertions(+), 4 deletions(-)

diff --git a/Telegram/SourceFiles/platform/linux/specific_linux.cpp b/Telegram/SourceFiles/platform/linux/specific_linux.cpp
index 92fc41d789..6b1f011897 100644
--- a/Telegram/SourceFiles/platform/linux/specific_linux.cpp
+++ b/Telegram/SourceFiles/platform/linux/specific_linux.cpp
@@ -25,6 +25,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include <QtCore/QStandardPaths>
 #include <QtCore/QProcess>
 #include <QtCore/QVersionNumber>
+#include <QtCore/QLibraryInfo>
 #include <QtGui/QWindow>
 
 #include <private/qwaylanddisplay_p.h>
@@ -756,11 +757,20 @@ bool UseXDGDesktopPortal() {
 }
 
 bool CanOpenDirectoryWithPortal() {
-#if (QT_VERSION >= QT_VERSION_CHECK(5, 15, 0) || defined DESKTOP_APP_QT_PATCHED) && !defined DESKTOP_APP_DISABLE_DBUS_INTEGRATION
-	return FileChooserPortalVersion() >= 3;
-#else // (Qt >= 5.15 || DESKTOP_APP_QT_PATCHED) && !DESKTOP_APP_DISABLE_DBUS_INTEGRATION
+#ifndef DESKTOP_APP_DISABLE_DBUS_INTEGRATION
+	static const auto Result = [&] {
+#ifdef DESKTOP_APP_QT_PATCHED
+		return FileChooserPortalVersion() >= 3;
+#else // DESKTOP_APP_QT_PATCHED
+		return QLibraryInfo::version() >= QVersionNumber(5, 15, 0)
+			&& FileChooserPortalVersion() >= 3;
+#endif // !DESKTOP_APP_QT_PATCHED
+	}();
+
+	return Result;
+#endif // !DESKTOP_APP_DISABLE_DBUS_INTEGRATION
+
 	return false;
-#endif // (Qt < 5.15 && !DESKTOP_APP_QT_PATCHED) || DESKTOP_APP_DISABLE_DBUS_INTEGRATION
 }
 
 QString CurrentExecutablePath(int argc, char *argv[]) {