RPI: Fixed compile warnings.

include/bx/platform.h

@@ -68,7 +68,7 @@
 #		undef BX_PLATFORM_WINRT
 #		define BX_PLATFORM_WINRT 1
 #	endif
-#elif defined(BCM2708)
+#elif defined(__VCCOREVER__)
 // RaspberryPi compiler defines __linux__
 #	undef BX_PLATFORM_RPI
 #	define BX_PLATFORM_RPI 1

premake/toolchain.lua

@@ -708,7 +708,8 @@ function toolchain(_buildDir, _libDir)
 			"/opt/vc/lib",
 		}
 		defines {
-			"BCM2708", -- There is no special prefedined compiler symbol to detect RaspberryPi, faking it.
+			"__VCCOREVER__=0x04000000", -- There is no special prefedined compiler symbol to detect RaspberryPi, faking it.
+			"__STDC_VERSION__=199901L",
 		}
 		buildoptions {
 			"-std=c++0x",