Add nvidia config to build nvidia-compatible binary on osx/linux

Also added config to build a cpu-native binary to take advantage of additional CPU features

Builds/QtCreator/shared_settings.pri

@@ -23,6 +23,17 @@ macx {
   QMAKE_LFLAGS_RELEASE += -s
 }
 
+nvidia {
+  QMAKE_CXXFLAGS += -DNVIDIA
+}
+
+native {
+  QMAKE_CXXFLAGS += -march=native
+} else {
+  QMAKE_CXXFLAGS += -march=k8
+}
+
+
 DESTDIR = $$(HOME)/Dev/fractorium/Bin
 
 LIBS += -L/usr/lib -ljpeg

Source/EmberCL/EmberCLPch.h

@@ -21,6 +21,12 @@
 #endif
 
 #include <utility>
+
+#ifdef NVIDIA
+#undef CL_VERSION_1_2
+#define CL_VERSION_1_1
+#endif
+
 #include <CL/cl.hpp>
 
 #include <algorithm>