Make it possible to compile out the default CMAKE_INSTALL_PREFIX paths for projectm visualisations

src/CMakeLists.txt

@@ -336,6 +336,8 @@ print_engines()
 
 # Visualisations
 if(ENABLE_VISUALISATIONS)
+  option(VISUALISATIONS_USE_INSTALL_PREFIX "Look for visualisations in CMAKE_INSTALL_PREFIX" ON)
+
   list(APPEND SOURCES
     visualisations/projectmpresetmodel.cpp
     visualisations/projectmvisualisation.cpp

src/config.h.in

@@ -26,6 +26,7 @@
 #define CMAKE_INSTALL_PREFIX "${CMAKE_INSTALL_PREFIX}"
 
 #cmakedefine ENABLE_VISUALISATIONS
+#cmakedefine VISUALISATIONS_USE_INSTALL_PREFIX
 
 #cmakedefine SNOW_LEOPARD
 #cmakedefine LEOPARD

src/visualisations/projectmvisualisation.cpp

@@ -58,10 +58,12 @@ ProjectMVisualisation::~ProjectMVisualisation() {
 void ProjectMVisualisation::InitProjectM() {
   // Find the projectM presets
   QStringList paths = QStringList()
+#ifdef VISUALISATIONS_USE_INSTALL_PREFIX
       << CMAKE_INSTALL_PREFIX "/share/clementine/projectm-presets"
+      << CMAKE_INSTALL_PREFIX "/share/projectM/presets"
+#endif
       << "/usr/share/clementine/projectm-presets"
       << "/usr/local/share/clementine/projectm-presets"
-      << CMAKE_INSTALL_PREFIX "/share/projectM/presets"
       << "/usr/share/projectM/presets"
       << "/usr/local/share/projectM/presets";