Makefile: for non-gophers

Many people need or want to build go-ethereum from the git repository,
mostly to stay up to date with recent changes. We cannot expect that
people without Go experience grok the Go workspace concept.

With the Makefile, building from github requires only
three steps (provided that a Go toolchain is installed):

    - git clone https://github.com/ethereum/go-ethereum
    - ... install C libraries (libgmp, etc.) ...
    - make

1 files changed, 22 insertions, 0 deletions

diff --git a/Makefile b/Makefile
new file mode 100644
index 000000000..1fdc36f98
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,22 @@
+# This Makefile is meant to be used by people that do not usually work
+# with Go source code. If you know what GOPATH is then you probably
+# don't need to bother with make.
+#
+# Note that there is no way to run the tests or do anything other than
+# building the binaries. This is by design.
+
+.PHONY: geth mist clean
+GOBIN = build/bin
+
+geth:
+	build/env.sh go install -v github.com/ethereum/go-ethereum/cmd/geth
+	@echo "Done building."
+	@echo "Run \"$(GOBIN)/geth\" to launch geth."
+
+mist:
+	build/env.sh go install -v github.com/ethereum/go-ethereum/cmd/mist
+	@echo "Done building."
+	@echo "Run \"$(GOBIN)/mist --asset_path=cmd/mist/assets\" to launch mist."
+
+clean:
+	rm -fr build/_workspace/pkg/ $(GOBIN)/*