rtlwifi build:

Use the same linux-4.8.17-patched.txz as found in Core.

export CFLAGS="-march=i486 -mtune=i686 -O2 -pipe"
export CXXFLAGS="-march=i486 -mtune=i686 -O2 -pipe"
tar xvf linux-4.8.17-patched.txz
cd linux-4.8.17
cp config-4.8.17-tinycore-mountdevtmpfs .config
make oldconfig
make prepare
make modules_prepare
# cd to dir containing unzip rtlwifi_new-master.zip
cd rtlwifi_new-master
make all
make install