Calling cmake directly
-cd pycoalescence
-$PYTHON installer.py --cmake-args="-DCMAKE_PREFIX_PATH=${PREFIX} -DCMAKE_INSTALL_PREFIX=${PREFIX}"
+cd pycoalescence/lib
+cmake -DCMAKE_PREFIX_PATH=${PREFIX} -DCMAKE_INSTALL_PREFIX=${PREFIX} .
+
+cd ..
rm -rf __pycache__
rm -rf obj
