Give makefiles 'test' and 'check' targets to compile and run unit tests

src/makefile.mingw

@@ -83,6 +83,9 @@ OBJS= \
 
 all: bitcoind.exe
 
+test check: test_bitcoin.exe FORCE
+	test_bitcoin.exe
+
 obj/%.o: %.cpp $(HEADERS)
 	g++ -c $(CFLAGS) -o $@ $<
 
@@ -102,3 +105,5 @@ clean:
 	-del /Q obj\*
 	-del /Q obj-test\*
 	-del /Q build.h
+
+FORCE:

src/makefile.osx

@@ -116,6 +116,9 @@ endif
 
 all: bitcoind
 
+test check: test_bitcoin FORCE
+	./test_bitcoin
+
 # auto-generated dependencies:
 -include obj/*.P
 -include obj-test/*.P

src/makefile.unix

@@ -132,6 +132,9 @@ OBJS= \
 
 all: bitcoind
 
+test check: test_bitcoin FORCE
+	./test_bitcoin
+
 # auto-generated dependencies:
 -include obj/*.P
 -include obj-test/*.P