build.rst says to patch panda3d using patch -p1 <game_directory>/util/patch-panda3d/<name>.patch. This hangs on Ubuntu as patch expects to read the patch file from stdin.
patch -p1 -i <game_directory>/util/patch-panda3d/<name>.patch would work on Ubuntu
build.rst says to patch panda3d using
patch -p1 <game_directory>/util/patch-panda3d/<name>.patch
. This hangs on Ubuntu as patch expects to read the patch file from stdin.patch -p1 -i <game_directory>/util/patch-panda3d/<name>.patch
would work on Ubuntu