This adds support for separate config and data dirs.
On Linux, these will be compliant XDG Basedir Specification, i.e.
XDG_CONFIG_HOME and XDG_CONFIG_DIRS (or XDG_DATA_HOME and XDG_DATA_DIRS
respectively). On all other platforms, there currently just set to the
homedir path (so no previous behaviour has been changed).
If reicast wants to read and write a data file, it just calls
get_data_path("/samplefile.txt"). If it does not need to write to
that file, it just uses get_data_path("/samplefile.txt", false). That
way, we can also use system-wide dirs (like /usr/share/reicast on
linux), that the user usually doesn't have write access to.
The same applies for config file, where you use get_config_path(args)
respectively.
This coommit makes reicast use $XDG_CONFIG_HOME from XDG Base Directory
Specification[1] if possible.
For backwards-compatability with older installations, it checks if the
old-style config directory at $HOME/.reicast exists. If so, it'll use
that instead.
All new installation should use $XDG_CONFIG_HOME/reicast (or if
that environment variable is not set: $HOME/.config/reicast).
[1] http://standards.freedesktop.org/basedir-spec/basedir-spec-latest.html
On some compiler versions, this caused an error:
../../core/linux-dist/evdev_mappings.cpp:57:3: error: uninitialized
const member ‘s_evdev_controller_mapping::Axis_DPad_X’
../../core/linux-dist/evdev_mappings.cpp:57:3: error: uninitialized
const member ‘s_evdev_controller_mapping::Axis_DPad_Y’
../../core/linux-dist/evdev_mappings.cpp:57:3: error: uninitialized
const member ‘s_evdev_controller_mapping::Axis_DPad2_X’
../../core/linux-dist/evdev_mappings.cpp:57:3: error: uninitialized
const member ‘s_evdev_controller_mapping::Axis_DPad2_Y’
../../core/linux-dist/evdev_mappings.cpp:57:3: error: uninitialized
const member ‘s_evdev_controller_mapping::Axis_Analog_X’
../../core/linux-dist/evdev_mappings.cpp:57:3: error: uninitialized
const member ‘s_evdev_controller_mapping::Axis_Analog_Y’
../../core/linux-dist/evdev_mappings.cpp:57:3: error: uninitialized
const member ‘s_evdev_controller_mapping::Axis_Trigger_Left’
../../core/linux-dist/evdev_mappings.cpp:57:3: error: uninitialized
const member ‘s_evdev_controller_mapping::Axis_Trigger_Right’
Stefanos Kornilios Mitsis Poiitidis