rtl_fm bias tee

Hello I am installing a satgate on the raspberry pi with an rtl dongle I use the rtl_fm from the sources and I get an error about bias tee I have had to use another source Here is my install script #!/bin/sh clear echo "VK4TEC SATGATE install" echo " " #sudo apt-get update #sudo apt-get install cmake build-essential libusb-1.0-0-dev git clone https://github.com/niofis/rtl-sdr.git cd rtl-sdr/ mkdir build cd build cmake ../ make sudo make install sudo ldconfig git clone https://www.github.com/wb2osz/direwolf cd ~/direwolf make sudo make install make install-rpi make install-conf cd ~ sudo mv sdr.old sdr.confcd ~ sudo cp sdr.conf sdr.old cd ~ sudo apt-get uninstall rtl-sdr sudo apt-get install rtl-sdr sudo apt-get install librtlsdr-dev /usr/bin/rtl_fm -f 145.825M - | direwolf -t 0 -dii -c sdr.conf -r 24000 -D 1 - Andrew Rich Nov 2017