Debug output to stdout.

include/bx/debug.h

@@ -19,6 +19,8 @@ extern "C" __declspec(dllimport) void __stdcall OutputDebugStringA(const char* _
 #		include <CoreFoundation/CFString.h>
 extern "C" void NSLog(CFStringRef _format, ...);
 #	endif // defined(__OBJC__)
+#elif 0 // BX_PLATFORM_EMSCRIPTEN
+#	include <emscripten.h>
 #else
 #	include <stdio.h>
 #endif // BX_PLATFORM_WINDOWS
@@ -53,9 +55,11 @@ namespace bx
 #	else
 		NSLog(__CFStringMakeConstantString("%s"), _out);
 #	endif // defined(__OBJC__)
+#elif 0 // BX_PLATFORM_EMSCRIPTEN
+		emscripten_log(EM_LOG_CONSOLE, "%s", _out);
 #else
-		fputs(_out, stderr);
-		fflush(stderr);
+		fputs(_out, stdout);
+		fflush(stdout);
 #endif // BX_PLATFORM_
 	}