Create helper function to get libtorrent version

src/app/stacktrace_win_dlg.h

@@ -32,7 +32,6 @@
 
 #include <QString>
 #include <QDialog>
-#include "libtorrent/version.hpp"
 #include "base/utils/misc.h"
 #include "ui_stacktrace_win_dlg.h"
 
@@ -62,13 +61,14 @@ public:
             "<br/><hr><br/>"
             "<p align=center><font size=4>"
             "qBittorrent version: " VERSION "<br/>"
-            "Libtorrent version: " LIBTORRENT_VERSION "<br/>"
+            "Libtorrent version: %1<br/>"
             "Qt version: " QT_VERSION_STR "<br/>"
-            "Boost version: %1<br/>"
+            "Boost version: %2<br/>"
-            "OS version: %2"
+            "OS version: %3"
             "</font></p><br/>"
-            "<pre><code>%3</code></pre>"
+            "<pre><code>%4</code></pre>"
             "<br/><hr><br/><br/>")
+            .arg(Utils::Misc::libtorrentVersionString())
             .arg(Utils::Misc::boostVersionString())
             .arg(Utils::Misc::osName())
             .arg(trace);

src/base/utils/misc.cpp

@@ -39,6 +39,7 @@
 #include <QThread>
 #include <QSysInfo>
 #include <boost/version.hpp>
+#include <libtorrent/version.hpp>
 
 #ifdef DISABLE_GUI
 #include <QCoreApplication>
@@ -661,3 +662,10 @@ QString Utils::Misc::boostVersionString()
                  .arg(BOOST_VERSION % 100);
     return ver;
 }
+
+QString Utils::Misc::libtorrentVersionString()
+{
+    // static initialization for usage in signal handler
+    static const QString ver = LIBTORRENT_VERSION;
+    return ver;
+}

src/base/utils/misc.h

@@ -58,6 +58,7 @@ namespace Utils
 #endif
         QString osName();
         QString boostVersionString();
+        QString libtorrentVersionString();
 
         int pythonVersion();
         QString pythonExecutable();

src/gui/about_imp.h

@@ -33,7 +33,6 @@
 
 #include "ui_about.h"
 #include <QFile>
-#include <libtorrent/version.hpp>
 #include "base/utils/misc.h"
 #include "base/unicodestrings.h"
 
@@ -91,7 +90,7 @@ public:
 
         // Libraries
         label_11->setText(QT_VERSION_STR);
-        label_12->setText(LIBTORRENT_VERSION);
+        label_12->setText(Utils::Misc::libtorrentVersionString());
         label_13->setText(Utils::Misc::boostVersionString());
 
         show();