diff --git a/scripts/src/3rdparty.lua b/scripts/src/3rdparty.lua
index 1bb36a5d29e..38c5a783d80 100644
--- a/scripts/src/3rdparty.lua
+++ b/scripts/src/3rdparty.lua
@@ -469,6 +469,11 @@ project "bgfx"
 			MAME_DIR .. "3rdparty/bx/include/compat/osx",
 		}
 	
+	configuration { "gmake" }
+		buildoptions {		
+			"-Wno-uninitialized",
+		}
+			
 	configuration { }
 
 	defines {
diff --git a/src/osd/modules/render/drawbgfx.c b/src/osd/modules/render/drawbgfx.c
index 2edb0c74517..84dbb716b18 100644
--- a/src/osd/modules/render/drawbgfx.c
+++ b/src/osd/modules/render/drawbgfx.c
@@ -5,12 +5,12 @@
 //  drawbgfx.c - BGFX drawer
 //
 //============================================================
-
-#if defined(SDLMAME_WIN32) || defined(OSD_WINDOWS)
-// standard windows headers
 #define __STDC_LIMIT_MACROS
 #define __STDC_FORMAT_MACROS
 #define __STDC_CONSTANT_MACROS
+
+#if defined(SDLMAME_WIN32) || defined(OSD_WINDOWS)
+// standard windows headers
 #define WIN32_LEAN_AND_MEAN
 #include <windows.h>
 #else