tatsuhiro-t/wslay — pull request #9 by vincentbernat (2014-02-09 13:40:42+00:00)
Title: build: allow one to build out-of-tree documentation

It is somewhat convenient to be able to build Wslay in a separated
directory:

```sh
mkdir build
cd build
../configure
make
```

Sphinx was looking for its source files in the build directory instead
of the source directory. We fix this.