Merge branch 'charlesmchen/webrtc/buildingWebRTC' into feature/webrtc

MAINTAINING.md

@@ -19,11 +19,24 @@ https://webrtc.org/native-code/ios/
 
 Once you have your build environment set up and the WebRTC source downloaded:
 
-    cd webrtc
-    # build a fat framework
-    src/webrtc/build/ios/build_ios_libs.sh
-    # Put it in our frameworks search path
-    mv src/webrtc/ios_libs_out/WebRTC.framework ../Signal-iOS/Carthage/Builds
+    # The specific set of commands that worked for me were somewhat different.
+	# 1. Install depot tools
+	cd <somewhere>
+	git clone https://chromium.googlesource.com/chromium/tools/depot_tools.git
+	cd depot_tools
+	export PATH=<somewhere>/depot_tools:"$PATH"
+	# 2. Fetch webrtc source
+	cd <somewhere else>
+	mkdir webrtc
+	cd webrtc
+	fetch --nohooks webrtc_ios
+	gclient sync
+	# 3. Build webrtc
+	# NOTE: build_ios_libs.sh only worked for me from inside "src"
+	cd src
+	webrtc/build/ios/build_ios_libs.sh
+	# NOTE: It's Carthage/Build/iOS, not Carthage/Builds
+	mv out_ios_libs/WebRTC.framework ../../Signal-iOS/Carthage/Build/iOS/
 
 ## Translations