CI Build improvements

[thedrow]

No description provided.

[yinqiwen]

Seems this patch make the Travis CI build return 1 after all test.

[thedrow]

I have no idea why. I'm investigating...

[thedrow]

Why is the compilation failing? I don't see an error.

[yinqiwen]

·The command "make -j2" exited with 2.
0.01s$ ./ardb-test
/home/travis/build.sh: line 45: ./ardb-test: No such file or directory
The command "./ardb-test" exited with 127.
0.02s$ popd
~/build/yinqiwen/ardb
The command "popd" exited with 0.
cache.2
store build cache
0.00s
6.48schange detected (content changed, file is created, or file is deleted):

seems '-j2' is not a good options to build dependencies, some 3rd libs are not compiled success before compiling ardb's source.

[thedrow]

Oh, so the problem is the makefile? Ok I'll revert that.

[thedrow]

I have no idea why the build is hanging. Must be a travis bug...