diff --git a/misc/portability.md b/misc/portability.md
index 77d1bac1b..cdbaa5293 100644
--- a/misc/portability.md
+++ b/misc/portability.md
@@ -61,6 +61,7 @@ I don't really test these platforms at all, only when I suspect some changes to
 
 Listed below are the requirements for implementing each platform-dependent file.
 You should try to take advantage of existing backends when porting to other platforms.
+Only cross platform backends are listed below.
 
 ### Platform
 General platform specific functionality.
@@ -76,7 +77,6 @@ General platform specific functionality.
 - Encrypt/decrypt data, getting command line args
 
 Define:
-- ```CC_BUILD_WIN``` - Use Win32 API (Windows)
 - ```CC_BUILD_POSIX``` - Use posix API
 
 posix note: Some functions are not covered. (stopwatch, getting exe path, open url in browser)
@@ -88,11 +88,8 @@ Create a window, show a dialog window, set window contents, keyboard/mouse input
 Also monitor size, clipboard, cursor, raw relative mouse movement (optional)
 
 Define:
-- ```CC_BUILD_WINGUI``` - Use Win32 API (Windows) (WGL)
-- ```CC_BUILD_CARBON``` - Use Carbon (Mac OSX) (AGL)
 - ```CC_BUILD_X11``` - Use X11/XLib (unix-ish) (glX)
 - ```CC_BUILD_SDL``` - Use SDL library (SDL)
-- ```CC_BUILD_WEBCANVAS``` - Use emscripten canvas (WebGL)
 
 If using OpenGL, also OpenGL context management
 
@@ -100,8 +97,7 @@ If using OpenGL, also OpenGL context management
 Dump registers and backtrace, log unhandled errors (e.g. invalid memory read)
 
 Define:
-- ```CC_BUILD_WIN``` - Use Win32 api
-- ```CC_BUILD_POSIX``` - Use POSIX api
+- ```CC_BUILD_POSIX``` - use POSIX api
 
 posix note: Register access is highly dependent on OS and architecture.
 
@@ -111,8 +107,8 @@ posix note: Register access is highly dependent on OS and architecture.
 Play multiple audio streams with varying sample rates
 
 Define:
-- ```CC_BUILD_WINMM``` - Use WinMM (Windows)
-- ```CC_BUILD_OpenAL``` - Use OpenAL
+- ```CC_BUILD_OPENAL``` - use OpenAL
+- ```CC_BUILD_NOAUDIO``` - stub audio implementation (silent)
 
 ### 3D Graphics
 Texturing, depth buffer, alpha, etc (See Graphics.h for full list)
@@ -128,7 +124,6 @@ Define:
 HTTP, HTTPS, and setting request/getting response headers
 
 Define:
-- ```CC_BUILD_WININET``` - use WinINet for http (Windows)
 - ```CC_BUILD_CURL``` - use libcurl for http
 
 Supporting connection reuse is highly recommended. (but not required)
diff --git a/src/Audio.c b/src/Audio.c
index 5346d347c..0534aeb0e 100644
--- a/src/Audio.c
+++ b/src/Audio.c
@@ -16,7 +16,7 @@
 int Audio_SoundsVolume, Audio_MusicVolume;
 
 /* TODO: Fix for android */
-#if defined CC_BUILD_WEB || defined CC_BUILD_ANDROID
+#if defined CC_BUILD_NOAUDIO
 /* Can't use mojang's sounds or music assets, so just stub everything out */
 static void Audio_Init(void) { }
 static void Audio_Free(void) { }
diff --git a/src/Core.h b/src/Core.h
index d93a54231..ef2018caf 100644
--- a/src/Core.h
+++ b/src/Core.h
@@ -155,6 +155,7 @@ typedef struct TextureRec_ { float U1, V1, U2, V2; } TextureRec;
 #define CC_BUILD_GLMODERN
 #define CC_BUILD_GLES
 #define CC_BUILD_TOUCH
+#define CC_BUILD_NOAUDIO
 #elif defined __linux__
 #define CC_BUILD_LINUX
 #define CC_BUILD_POSIX
@@ -207,8 +208,8 @@ typedef struct TextureRec_ { float U1, V1, U2, V2; } TextureRec;
 #define CC_BUILD_GL
 #define CC_BUILD_GLMODERN
 #define CC_BUILD_GLES
-#define CC_BUILD_WEBCANVAS
 #define CC_BUILD_TOUCH
+#define CC_BUILD_NOAUDIO
 #endif
 #endif
 
diff --git a/src/Window.c b/src/Window.c
index ceabbd66b..79c7f342e 100644
--- a/src/Window.c
+++ b/src/Window.c
@@ -21,7 +21,7 @@ cc_bool Window_Exists, Window_Focused;
 const void* Window_Handle;
 cc_bool Window_SoftKeyboard;
 
-#ifndef CC_BUILD_WEBCANVAS
+#ifndef CC_BUILD_WEB
 void Clipboard_RequestText(RequestClipboardCallback callback, void* obj) {
 	String text; char textBuffer[512];
 	String_InitArray(text, textBuffer);
@@ -2786,7 +2786,7 @@ void GLContext_SetFpsLimit(cc_bool vsync, float minFrameMs) {
 /*########################################################################################################################*
 *------------------------------------------------Emscripten canvas window-------------------------------------------------*
 *#########################################################################################################################*/
-#ifdef CC_BUILD_WEBCANVAS
+#ifdef CC_BUILD_WEB
 #include <emscripten/emscripten.h>
 #include <emscripten/html5.h>
 #include <emscripten/key_codes.h>