Can't compile on ubuntu 20.04

[mdpatterson]

Hi,

This is probably a really dumb question (so sorry in advance) but I am very stuck. I trying to compile from

git clone --recursive https://github.com/intel-isl/Open3D

on Ubuntu 20.04 as below.

cmake -D BUILD_LIBREALSENSE=ON -DPYTHON_EXECUTABLE=./venv/bin/ ..

it all falls apart here

[ 82%] Building CXX object cpp/pybind/CMakeFiles/pybind.dir/core/tensor_type_caster.cpp.o
/usr/bin/ld: ../../../lib/Release/libOpen3D_3rdparty_glew.a(glew.c.o): in function _glewInit_GL_VERSION_1_3': glew.c:(.text+0x205): undefined reference to glXGetProcAddressARB'
/usr/bin/ld: glew.c:(.text+0x21e): undefined reference to glXGetProcAddressARB' /usr/bin/ld: glew.c:(.text+0x248): undefined reference to glXGetProcAddressARB'
/usr/bin/ld: glew.c:(.text+0x26a): undefined reference to glXGetProcAddressARB' /usr/bin/ld: glew.c:(.text+0x287): undefined reference to glXGetProcAddressARB'

also

sudo apt install libglew-dev
libglew-dev is already the newest version (2.1.0-4).

Any ideas what i'm doing wrong?