diff --git a/code/nel/include/nel/misc/types_nl.h b/code/nel/include/nel/misc/types_nl.h
index d27fc4b48..f1ed871fc 100644
--- a/code/nel/include/nel/misc/types_nl.h
+++ b/code/nel/include/nel/misc/types_nl.h
@@ -364,6 +364,10 @@ typedef	unsigned	int			uint;			// at least 32bits (depend of processor)
 #include <malloc.h>
 inline void *aligned_malloc(size_t size, size_t alignment) { return _aligned_malloc(size, alignment); }
 inline void aligned_free(void *ptr) { _aligned_free(ptr); }
+#elif defined(NL_OS_MAC)
+// under Mac OS X, malloc is already aligned for SSE and Altivec (16 bytes alignment)
+inline void *aligned_malloc(size_t size, size_t alignment) { return malloc(size); }
+inline void aligned_free(void *ptr) { free(ptr); }
 #else
 #include <malloc.h>
 inline void *aligned_malloc(size_t size, size_t alignment) { return memalign(alignment, size); }
diff --git a/code/nel/src/3d/driver/opengl/driver_opengl_extension.cpp b/code/nel/src/3d/driver/opengl/driver_opengl_extension.cpp
index aee3e74bb..1a660f9c7 100644
--- a/code/nel/src/3d/driver/opengl/driver_opengl_extension.cpp
+++ b/code/nel/src/3d/driver/opengl/driver_opengl_extension.cpp
@@ -450,14 +450,14 @@ PFNGLGETOCCLUSIONQUERYIVNVPROC				nglGetOcclusionQueryivNV;
 PFNGLGETOCCLUSIONQUERYUIVNVPROC				nglGetOcclusionQueryuivNV;
 
 // ARB_occlusion_query
-PFNGLGENQUERIESPROC							nglGenQueriesARB;
-PFNGLDELETEQUERIESPROC						nglDeleteQueriesARB;
-PFNGLISQUERYPROC							nglIsQueryARB;
-PFNGLBEGINQUERYPROC							nglBeginQueryARB;
-PFNGLENDQUERYPROC							nglEndQueryARB;
-PFNGLGETQUERYIVPROC							nglGetQueryivARB;
-PFNGLGETQUERYOBJECTIVPROC					nglGetQueryObjectivARB;
-PFNGLGETQUERYOBJECTUIVPROC					nglGetQueryObjectuivARB;
+PFNGLGENQUERIESARBPROC						nglGenQueriesARB;
+PFNGLDELETEQUERIESARBPROC					nglDeleteQueriesARB;
+PFNGLISQUERYARBPROC							nglIsQueryARB;
+PFNGLBEGINQUERYARBPROC						nglBeginQueryARB;
+PFNGLENDQUERYARBPROC						nglEndQueryARB;
+PFNGLGETQUERYIVARBPROC						nglGetQueryivARB;
+PFNGLGETQUERYOBJECTIVARBPROC				nglGetQueryObjectivARB;
+PFNGLGETQUERYOBJECTUIVARBPROC				nglGetQueryObjectuivARB;
 
 // GL_EXT_framebuffer_object
 PFNGLISRENDERBUFFEREXTPROC					nglIsRenderbufferEXT;
@@ -1397,14 +1397,14 @@ static bool	setupARBOcclusionQuery(const char	*glext)
 	CHECK_EXT("ARB_occlusion_query");
 
 #ifndef USE_OPENGLES
-	CHECK_ADDRESS(PFNGLGENQUERIESPROC, glGenQueriesARB);
-	CHECK_ADDRESS(PFNGLDELETEQUERIESPROC, glDeleteQueriesARB);
-	CHECK_ADDRESS(PFNGLISQUERYPROC, glIsQueryARB);
-	CHECK_ADDRESS(PFNGLBEGINQUERYPROC, glBeginQueryARB);
-	CHECK_ADDRESS(PFNGLENDQUERYPROC, glEndQueryARB);
-	CHECK_ADDRESS(PFNGLGETQUERYIVPROC, glGetQueryivARB);
-	CHECK_ADDRESS(PFNGLGETQUERYOBJECTIVPROC, glGetQueryObjectivARB);
-	CHECK_ADDRESS(PFNGLGETQUERYOBJECTUIVPROC, glGetQueryObjectuivARB);
+	CHECK_ADDRESS(PFNGLGENQUERIESARBPROC, glGenQueriesARB);
+	CHECK_ADDRESS(PFNGLDELETEQUERIESARBPROC, glDeleteQueriesARB);
+	CHECK_ADDRESS(PFNGLISQUERYARBPROC, glIsQueryARB);
+	CHECK_ADDRESS(PFNGLBEGINQUERYARBPROC, glBeginQueryARB);
+	CHECK_ADDRESS(PFNGLENDQUERYARBPROC, glEndQueryARB);
+	CHECK_ADDRESS(PFNGLGETQUERYIVARBPROC, glGetQueryivARB);
+	CHECK_ADDRESS(PFNGLGETQUERYOBJECTIVARBPROC, glGetQueryObjectivARB);
+	CHECK_ADDRESS(PFNGLGETQUERYOBJECTUIVARBPROC, glGetQueryObjectuivARB);
 #endif
 
 	return true;
diff --git a/code/nel/src/3d/driver/opengl/driver_opengl_extension.h b/code/nel/src/3d/driver/opengl/driver_opengl_extension.h
index dba5facfb..868a0eaf4 100644
--- a/code/nel/src/3d/driver/opengl/driver_opengl_extension.h
+++ b/code/nel/src/3d/driver/opengl/driver_opengl_extension.h
@@ -744,14 +744,14 @@ extern PFNGLGETOCCLUSIONQUERYUIVNVPROC nglGetOcclusionQueryuivNV;
 
 // ARB_occlusion_query
 //==================================
-extern PFNGLGENQUERIESPROC nglGenQueriesARB;
-extern PFNGLDELETEQUERIESPROC nglDeleteQueriesARB;
-extern PFNGLISQUERYPROC nglIsQueryARB;
-extern PFNGLBEGINQUERYPROC nglBeginQueryARB;
-extern PFNGLENDQUERYPROC nglEndQueryARB;
-extern PFNGLGETQUERYIVPROC nglGetQueryivARB;
-extern PFNGLGETQUERYOBJECTIVPROC nglGetQueryObjectivARB;
-extern PFNGLGETQUERYOBJECTUIVPROC nglGetQueryObjectuivARB;
+extern PFNGLGENQUERIESARBPROC nglGenQueriesARB;
+extern PFNGLDELETEQUERIESARBPROC nglDeleteQueriesARB;
+extern PFNGLISQUERYARBPROC nglIsQueryARB;
+extern PFNGLBEGINQUERYARBPROC nglBeginQueryARB;
+extern PFNGLENDQUERYARBPROC nglEndQueryARB;
+extern PFNGLGETQUERYIVARBPROC nglGetQueryivARB;
+extern PFNGLGETQUERYOBJECTIVARBPROC nglGetQueryObjectivARB;
+extern PFNGLGETQUERYOBJECTUIVARBPROC nglGetQueryObjectuivARB;
 
 #ifdef NL_OS_WINDOWS