diff --git a/doc/tutorial/15_gui.cpp b/doc/tutorial/15_gui.cpp
index 91e2b8f4..9d11bd05 100644
--- a/doc/tutorial/15_gui.cpp
+++ b/doc/tutorial/15_gui.cpp
@@ -42,7 +42,7 @@ public:
         WorldEntity::tick_game(seconds);
 
         static float f;
-        static vec3 clear_color;
+        //static vec3 clear_color;
         static char buf[512];
         ImGuiIO& io = ImGui::GetIO();
         ImGui::SetNextWindowFocus();
diff --git a/doc/tutorial/17_net.cpp b/doc/tutorial/17_net.cpp
index 1eeebbed..a0c4a16e 100644
--- a/doc/tutorial/17_net.cpp
+++ b/doc/tutorial/17_net.cpp
@@ -56,7 +56,7 @@ int main(int argc, char **argv)
     lol::sys::init(argc, argv);
 
     lol::Application app("Tutorial 17: HTTP", lol::ivec2(800, 600), 60.0f);
-    auto p = new demo();
+    new demo();
     app.Run();
 
     return 0;
diff --git a/src/application/egl-app.cpp b/src/application/egl-app.cpp
index d987faa5..7ac9059f 100644
--- a/src/application/egl-app.cpp
+++ b/src/application/egl-app.cpp
@@ -254,8 +254,8 @@ EglApp::EglApp(char const *title, ivec2 res, float fps) :
 #else
     (void)title;
     (void)res;
-    (void)fps;
 #endif
+    (void)fps;
 }
 
 void EglApp::ShowPointer(bool show)
diff --git a/src/audio/sample.cpp b/src/audio/sample.cpp
index a3f99aa1..3f719cea 100644
--- a/src/audio/sample.cpp
+++ b/src/audio/sample.cpp
@@ -96,7 +96,8 @@ sample::sample(void const *samples, size_t len)
     data->m_name = std::string("<sample>");
 
 #if defined LOL_USE_SDL_MIXER
-    data->m_chunk = Mix_QuickLoad_RAW((Uint8 *)samples, (Uint32)len);
+    // FIXME: this requires that the data is kept around; should we copy it?
+    data->m_chunk = Mix_QuickLoad_RAW((Uint8 *)const_cast<void *>(samples), (Uint32)len);
     data->m_channel = -1;
 #endif
 }
diff --git a/src/lolua/baselua.h b/src/lolua/baselua.h
index cfc8b7b9..656198d7 100644
--- a/src/lolua/baselua.h
+++ b/src/lolua/baselua.h
@@ -19,6 +19,7 @@ extern "C" {
 #include "3rdparty/lua/lauxlib.h"
 }
 
+#include <lol/msg> // lol::msg
 #include <cassert> // assert
 #include <vector>  // std::vector
 #include <string>  // std::string
diff --git a/tools/vimlol/vimlol.vim b/tools/vimlol/vimlol.vim
index 9c0f237a..8b131cc5 100644
--- a/tools/vimlol/vimlol.vim
+++ b/tools/vimlol/vimlol.vim
@@ -51,10 +51,6 @@ au Syntax cpp
    \ syn match cOperator
    \ "\<lolunit_\(fail\|assert\|refute\)[a-z_]*\>"
 
-" Global keywords
-au Syntax cpp
-  \ syn keyword cConstant
-
 
 """
 """ LolFx language handler