diff -r b825fa990e1c -r 26f0bf0de172 QTfrontend/ui/widget/about.cpp
--- a/QTfrontend/ui/widget/about.cpp	Mon Jul 08 01:40:20 2013 +0200
+++ b/QTfrontend/ui/widget/about.cpp	Mon Jul 08 01:50:00 2013 +0200
@@ -99,16 +99,20 @@
     libinfo.append(QString(tr("Unknown Compiler")).arg(__VERSION__) + QString("<br>"));
 #endif
 
+    const SDL_version *sdl_ver = SDL_Linked_Version();
     libinfo.append(QString("<a href=\"http://www.libsdl.org/\">SDL</a> version: %1.%2.%3<br>")
-        .arg(SDL_MAJOR_VERSION)
-        .arg(SDL_MINOR_VERSION)
-        .arg(SDL_PATCHLEVEL));
+        .arg(sdl_ver->major)
+        .arg(sdl_ver->minor)
+        .arg(sdl_ver->patch));
 
+    const SDL_version *sdlmixer_ver = Mix_Linked_Version();
     libinfo.append(QString("<a href=\"http://www.libsdl.org/\">SDL_mixer</a> version: %1.%2.%3<br>")
-        .arg(MIX_MAJOR_VERSION)
-        .arg(MIX_MINOR_VERSION)
-        .arg(MIX_PATCHLEVEL));
+        .arg(sdlmixer_ver->major)
+        .arg(sdlmixer_ver->minor)
+        .arg(sdlmixer_ver->patch));
 
+    // the remaining sdl modules used only in engine, so instead of needlessly linking them here
+    // we dynamically call the function returning the linked version
     void *sdlnet_handle = SDL_LoadObject(sopath("SDL_net"));
     if (sdlnet_handle != NULL) {
         SDL_version *(*sdlnet_ver_get)(void) = NULL;
@@ -166,6 +170,8 @@
         .arg(PHYSFS_VER_MINOR)
         .arg(PHYSFS_VER_PATCH));
 
+    // TODO: how to add Lua information?
+
     QLabel * lblLibInfo = new QLabel();
     lblLibInfo->setOpenExternalLinks(true);
     lblLibInfo->setText(libinfo);