For anyone else wondering. What i ended up doing was going to the releases on the github page.
github.com/indilib/indi/releases

Downloaded the version i wanted.

Installed on my rapsbeey pi all of the supporting software needed :
sudo apt-get install -y libnova-dev libcfitsio-dev libusb-1.0-0-dev zlib1g-dev libgsl-dev build-essential cmake git libjpeg-dev libcurl4-gnutls-dev libtiff-dev libfftw3-dev librtlsdr-dev

I read the install file in the downloaded zip file.
INDI Library Setup 1.0.0
========================

You must have CMake >= 2.8 in order to build this package.

1) $ tar -xzf v-1.8.9.tar.gz
2) $ mkdir libindi_build
3) $ cd libindi_build
4) $ cmake -DCMAKE_INSTALL_PREFIX=/usr . ../libindi
5) $ su -c 'make install' or sudo make install

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