Mumble Overlay on Linux

Hello!

I'm trying to get the mumble overlay working on a 64bit linux system.

I've built the prerequisite 32bit copy of libmumble.so.1 and I've verified that it works with a 32bit copy of glxgears.

However, it just crashes:

$ LD_PRELOAD="/usr/lib32/mumble/libmumble.so.1" ./ns2_linux32
GetInstanceCount currently unimplemented
Segmentation fault

Loading it up in GDB produces a ls.so error that I don't know how to debug, then stops at a breakpoint:

(gdb) set environment LD_PRELOAD=/usr/lib32/mumble/libmumble.so.1
(gdb) start
Temporary breakpoint 1 at 0x806a150: file ../Source/ShooterExe/Main.cpp, line 40.
Starting program: /home/murph/.local/share/Steam/SteamApps/common/Natural Selection 2/ns2_linux32
ERROR: ld.so: object '/usr/lib32/mumble/libmumble.so.1' from LD_PRELOAD cannot be preloaded: ignored.
warning: Could not load shared library symbols for linux-gate.so.1.
Do you need "set solib-search-path" or "set sysroot"?
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".

Temporary breakpoint 1, main (argc=-13395, argv=0x0) at ../Source/ShooterExe/Main.cpp:40
40 ../Source/ShooterExe/Main.cpp: No such file or directory.
(gdb)

Continuing from the breakpoint manually, the game then segfaults in a localtime() call from libawesomium:

(gdb) c
Continuing.
GetInstanceCount currently unimplemented

Program received signal SIGSEGV, Segmentation fault.
0xf495d41d in localtime () from /home/murph/.local/share/Steam/SteamApps/common/Natural Selection 2/libawesomium-1-7.so.0

If I run the game under gdb without the mumble overlay, it still gets the breakpoint, but then proceeds to work. (At least, through the menu and loading screen. I don't consider it wise to join a game with a debugger running).

Is anyone able to give advice on debugging this further? I'm comfortable modifying the way that the Mumble Overlay functions if it is at fault.