test

[Bo YU <tsu.yubo@gmail.com>]

Hi,
I want to pick one package to try port it to Debian.
And i have choose src:sofia-sip: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=978498

I can use `sbuild --host=riscv64 -d sid` at last to cross build it, and
it  report the error at end:

```
...
dh_clean
 debian/rules build-arch
dh_testdir
mkdir -p objs
cd objs &&      ../configure --host=riscv64-linux-gnu   \
                             --build=x86_64-linux-gnu   \
                             --prefix=/usr
checking build system type... x86_64-pc-linux-gnu
checking host system type... Invalid configuration `riscv64-linux-gnu': machine `riscv64' not recognized
configure: error: /bin/bash ../config.sub riscv64-linux-gnu failed
make: *** [debian/rules:35: objs/config.status] Error 1
dpkg-buildpackage: error: debian/rules build-arch subprocess returned exit status 2
```
I think this is expection behavior.

Now the question is: how can i push the process go on?
Pabs told me, he has the patch and i can test it or not take effect.

But i can not find the patch and how to apply in sofia-sip source code
or other method.

BR,
vimer