cmake: Add wrapper Makefile and README.

Makefile.cmake

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+BUILD?=build
+VERBOSE?=0
+PARALLEL_JOBS?=1
+CMAKE?=cmake
+
+all: doc package
+
+$(BUILD)/Makefile:
+	mkdir $(BUILD) || exit 0
+	cd $(BUILD) && $(CMAKE) -DCMAKE_VERBOSE_MAKEFILE=$(VERBOSE) ..
+
+build: $(BUILD)/Makefile
+	cd $(BUILD) && make -j $(PARALLEL_JOBS)
+
+install: build
+	cd $(BUILD) && sudo make install
+
+clean:
+	rm -rf $(BUILD)
+
+doc: $(BUILD)/Makefile
+	cd $(BUILD) && make doc
+
+package: $(BUILD)/Makefile
+	cd $(BUILD) && make package
+
+test: $(BUILD)/Makefile
+	cd $(BUILD) && make test
+
+.PHONY: build install clean doc package test

README.cmake

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+Instructions for building with cmake
+
+Make sure you have cmake:
+  Ubuntu/Debian: sudo apt-get install cmake
+  Mac: http://www.cmake.org/files/v2.8/cmake-2.8.3-Darwin-universal.dmg
+  Other platforms: http://www.cmake.org/cmake/resources/software.html
+
+To build:
+
+  make -f Makefile.cmake
+  make -f Makefile.cmake install
+
+To run the tests:
+
+  make -f Makefile.cmake test
+
+To build the documentation:
+
+  make -f Makefile.cmake doc
+
+To read the documentation:
+
+  man doc/node.1
+
+To build distro packages (tgz, deb, rpm, PackageMaker):
+
+  make -f Makefile.cmake package
+
+Using cmake directly:
+  cd ~/your-node-source-dir
+  mkdir name-of-build-dir     (can be anything)
+  cd name-of-build-dir
+  cmake ..
+
+  At this point you have generated a set of Makefiles and can use the standard
+  make commands (make, make install, etc.). The Makefile.cmake file is just a
+  wrapper around these commands; take a look at it for more details.
+
+Additional options:
+  In the CMakeLists.txt, you'll see things like
+  option(SHARED_V8, ...). If you want to enable any of those options you can
+  pass "-DOPTION=True" when running cmake (e.g., cmake -DSHARED_V8=True).
+
+See http://nodejs.org/ for more information. For help and discussion
+subscribe to the mailing list by visiting
+http://groups.google.com/group/nodejs or by sending an email to
+[email protected].