nerves_network_interface causes build error.

[RickCarlino]

$ iex -S mix
Erlang/OTP 19 [erts-8.0] [source] [64-bit] [smp:4:4] [async-threads:10] [hipe] [kernel-poll:false]

using development configuration.
==> nerves_network_interface
cc -c -I/home/rick/.asdf/installs/erlang/19.0/lib/erlang/usr/include -O2 -Wall -Wextra -Wno-unused-parameter -pedantic -std=c99 -D_XOPEN_SOURCE=600 -o src/netif.o src/netif.c
src/netif.c:26:27: fatal error: libmnl/libmnl.h: No such file or directory
 #include <libmnl/libmnl.h>
                           ^
compilation terminated.
make: *** [src/netif.o] Error 1
could not compile dependency :nerves_network_interface, "mix compile" failed. You can recompile this dependency with "mix deps.compile nerves_network_interface", update it with "mix deps.update nerves_network_interface" or clean it with "mix deps.clean nerves_network_interface"
** (Mix) Could not compile with "make" (exit status: 2).
Depending on your OS, make sure to follow these instructions:

  * Mac OS X: You need to have gcc and make installed. Try running the
    commands "gcc --version" and / or "make --version". If these programs
    are not installed, you will be prompted to install them.

  * Linux: You need to have gcc and make installed. If you are using
    Ubuntu or any other Debian-based system, install the packages
    "build-essential". Also install "erlang-dev" package if not
    included in your Erlang/OTP version. If you're on Fedora, run
    "dnf group install 'Development Tools'".

GCC Info:

$ which gcc
/usr/bin/gcc
$ gcc -v
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-linux-gnu/4.8/lto-wrapper
Target: x86_64-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Ubuntu 4.8.4-2ubuntu1~14.04.3' --with-bugurl=file:///usr/share/doc/gcc-4.8/README.Bugs --enable-languages=c,c++,java,go,d,fortran,objc,obj-c++ --prefix=/usr --program-suffix=-4.8 --enable-shared --enable-linker-build-id --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --with-gxx-include-dir=/usr/include/c++/4.8 --libdir=/usr/lib --enable-nls --with-sysroot=/ --enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes --enable-gnu-unique-object --disable-libmudflap --enable-plugin --with-system-zlib --disable-browser-plugin --enable-java-awt=gtk --enable-gtk-cairo --with-java-home=/usr/lib/jvm/java-1.5.0-gcj-4.8-amd64/jre --enable-java-home --with-jvm-root-dir=/usr/lib/jvm/java-1.5.0-gcj-4.8-amd64 --with-jvm-jar-dir=/usr/lib/jvm-exports/java-1.5.0-gcj-4.8-amd64 --with-arch-directory=amd64 --with-ecj-jar=/usr/share/java/eclipse-ecj.jar --enable-objc-gc --enable-multiarch --disable-werror --with-arch-32=i686 --with-abi=m64 --with-multilib-list=m32,m64,mx32 --with-tune=generic --enable-checking=release --build=x86_64-linux-gnu --host=x86_64-linux-gnu --target=x86_64-linux-gnu
Thread model: posix
gcc version 4.8.4 (Ubuntu 4.8.4-2ubuntu1~14.04.3) 

[ConnorRigby]

sudo apt-get install libmnl-dev