ext/Makefile: add js, sh and irony-mode dependencies

ext/Makefile

@@ -1,8 +1,15 @@
+CACHE_DIR="$(HOME)/.emacs.d/private/cache/`hostname`/`emacs --version | grep -o '2[0-9]\.[0-9]'`"
+ELPA_DIR="$(HOME)/.emacs.d/.cask/`emacs --version | grep -o '2[0-9]\.[0-9]\.[0-9]'`/elpa"
+
+LLVMV="3.8.0"
+LLVM="clang+llvm-$(LLVMV)-x86_64-apple-darwin"
+
+#
 
 all: rust csharp
 
 rust:
-	echo "Installing Rust dependencies"
+	@echo "Installing Rust dependencies"
 	git clone --depth 1 --recursive https://github.com/rust-lang/rust.git rust
 	git clone --depth 1 --recursive https://github.com/phildawes/racer.git racer-src
 	cd racer-src && cargo build --release
@@ -10,9 +17,30 @@ rust:
 	rm -rf racer-src
 
 csharp:
-	echo "Installing C# dependencies"
+	@echo "Installing C# dependencies"
 	git clone --depth 1 --recursive https://github.com/OmniSharp/omnisharp-server omnisharp
 	cd omnisharp && xbuild
 	mv omnisharp/bin/Debug/OmniSharp.exe ./OmniSharp.exe
 	rm -rf omnisharp
 
+js:
+	@echo "Installing js2-mode dependencies"
+	npm -g install web-beautify trepanjs
+
+sh:
+	@echo "Installing zsh/bash dependencies"
+	brew install zshdb bashdb
+
+cc:
+	@echo "Installing irony-mode dependencies"
+	[ -f "clang.tar.xz" ] || wget "http://llvm.org/releases/$(LLVMV)/$(LLVM).tar.xz" -O clang.tar.xz
+	@if [ ! -d clang ]; then \
+		tar -xzvf clang.tar.xz; \
+		mv "$(LLVM)" clang; \
+	fi
+	@mkdir -p build; cd build && cmake -DCMAKE_INSTALL_PREFIX=$(CACHE_DIR)/irony/ \
+		-DLIBCLANG_LIBRARY=~/.emacs.d/ext/clang/lib/libclang.dylib \
+		-DLIBCLANG_INCLUDE_DIR=~/.emacs.d/ext/clang/include/ \
+		$(ELPA_DIR)/irony-2*/server && \
+		cmake --build . --use-stderr --config Release --target install
+	install_name_tool -change @rpath/libclang.dylib /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/libclang.dylib $(CACHE_DIR)/irony/bin/irony-server