Do not build unit tests by default with make (#233).

Makefile

@@ -23,10 +23,12 @@ else # win32
 	DAEMON_SRC += DaemonWin32.cpp
 endif
 
-all: mk_build_dir $(SHLIB) $(I2PD) $(TESTS)
+all: mk_build_dir $(SHLIB) $(I2PD)
+tests: mk_build_test_dir $(TESTS)
 
 mk_build_dir:
 	mkdir -p obj
+mk_build_test_dir:
 	mkdir -p obj/tests
 
 api: $(SHLIB)
@@ -74,8 +76,10 @@ dist:
 	    --prefix=i2pd_$(LATEST_TAG)/ $(LATEST_TAG) -o i2pd_$(LATEST_TAG).tar.gz
 
 .PHONY: all
+.PHONY: tests
 .PHONY: clean
 .PHONY: deps
 .PHONY: dist
 .PHONY: api
 .PHONY: mk_build_dir
+.PHONY: mk_build_test_dir

README.md

@@ -66,6 +66,18 @@ After that, go to the webconsole and add it behind the url. (Remove http:// from
 This should resulting in for example:
 http://localhost:7070/4oes3rlgrpbkmzv4lqcfili23h3cvpwslqcfjlk6vvguxyggspwa.b32.i2p
 
+Building Unit Tests
+-------------------
+
+To build unit tests, you'll need to install the boost unit test framework.
+
+On Ubuntu/Debian based
+ * sudo apt-get install libboost-test-dev
+ 
+To build the tests, run
+
+$ make tests
+
 
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