Compiling 1.9.4, rtdist: __path__ empty

Okay, one more question, if I may: What version of GCC is usually used to build Panda3D (presuming that GCC is used at all)? I’ve hit a problem when attempting to create a distributable build of a game, and some quick Googling suggests that it may be related to a bug in GCC 5…

Specifically, while packp3d seems to work, pdeploy (the version found in “built_thaumaturge/stage”, I believe), exits with the following error:

Couldn't load /home/thaumaturge/.panda3d/coreapi/linux_amd64/p3d_plugin.so: /home/thaumaturge/.panda3d/coreapi/linux_amd64/p3d_plugin.so: undefined symbol: __cpu_model
Unable to launch core API in /home/thaumaturge/.panda3d/coreapi/linux_amd64/p3d_plugin.so
Unable to load Panda3D plugin.