fix for travisci

.travis.yaml

@@ -5,11 +5,7 @@ go:
   - 1.1
   - tip
 
-install:
-  - git submodule init
-  - git submodule update
-  - make
-  - go install
+install: make all
 
 script:
   - go test ./

Makefile

@@ -1,5 +1,12 @@
 # for GNU make
 
+all: libunqlite.a
+	go build
+
+src/unqlite.c:
+	git submodule init
+	git submodule update
+
 libunqlite.a: src/unqlite.c src/unqlite.h
 	gcc -c src/unqlite.c -I./src -DUNQLITE_ENABLE_THREADS=1
 	ar rv libunqlite.a unqlite.o