Ended up doing the same thing as OP and using a Wine prefix with the Windows installer to install the aircraft in Linux. Worked fine, I have it running in Linux now.
Would be nice to get the Linux installer fixed at some point, though. Thanks!
I am running into the same issue with Linux. I have a nearly identical setup as OP, running Arch Linux without SELinux enabled.
I do have enough of the 32-bit libraries installed to run the installer without any unresolved library references:
$ ldd ./CL650-linux-installer.run
linux-gate.so.1 (0xf1cbb000)
libm.so.6 => /usr/lib32/libm.so.6 (0xf1b94000)
libdl.so.2 => /usr/lib32/libdl.so.2 (0xf1b8f000)
libpthread.so.0 => /usr/lib32/libpthread.so.0 (0xf1b8a000)
libc.so.6 => /usr/lib32/libc.so.6 (0xf1957000)
/lib/ld-linux.so.2 => /usr/lib/ld-linux.so.2 (0xf1cbd000)
So I am at a bit of a loss here.
Thanks in advance for any assistance.