Include libsoxr in the FreeBSD package list.
Next, install the packages that are needed for Shairport Sync and NQPTP:
```
-# pkg install git autotools pkgconf popt libconfig openssl alsa-utils \
+# pkg install git autotools pkgconf popt libconfig openssl alsa-utils libsoxr \
libplist libsodium ffmpeg e2fsprogs-libuuid vim
```
If you are building classic Shairport Sync, the list of packages is shorter:
```
-# pkg install git autotools pkgconf popt libconfig openssl alsa-utils
+# pkg install git autotools pkgconf popt libconfig openssl alsa-utils libsoxr
```
## 3. Build
### NQPTP