Hardcoded directory paths

[hzurt]

GtkRadiant seems to assume it's located in a directory called "Desktop" in the home directory, and if it's not it doesn't start and shows this error:

Synpase server initialization failed (see console)

errno: No such file or directory
An unrecoverable error has occured.

It also prints these warnings on the console:

$ install/radiant.bin                            
I/O warning : failed to load external entity "/home/hz/c/GtkRadiant/install/global.xlink"
I/O warning : failed to load external entity "/home/hz/Desktop/GtkRadiant/install/installs/UrTPack/game/game.xlink"
I/O warning : failed to load external entity "/home/hz/Desktop/GtkRadiant/install/installs/UrTPack/game/synapse.config"

if I make a directory Desktop/GtkRadiant and move the install folder there it works.

system: void linux, musl libc
version: 0eea1a9