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- Linux
- ================================================================================
-
- By default SDL will only link against glibc, the rest of the features will be
- enabled dynamically at runtime depending on the available features on the target
- system. So, for example if you built SDL with Xinerama support and the target
- system does not have the Xinerama libraries installed, it will be disabled
- at runtime, and you won't get a missing library error, at least with the
- default configuration parameters.
-
-
- ================================================================================
- Build Dependencies
- ================================================================================
-
- Ubuntu 20.04, all available features enabled:
-
- sudo apt-get install build-essential mercurial make cmake autoconf automake \
- libtool libasound2-dev libpulse-dev libaudio-dev libx11-dev libxext-dev \
- libxrandr-dev libxcursor-dev libxi-dev libxinerama-dev libxxf86vm-dev \
- libxss-dev libgl1-mesa-dev libdbus-1-dev libudev-dev libgles2-mesa-dev \
- libegl1-mesa-dev libibus-1.0-dev fcitx-libs-dev libsamplerate0-dev \
- libsndio-dev libwayland-dev libxkbcommon-dev
-
- NOTES:
- - This includes all the audio targets except arts and esd, because Ubuntu
- (and/or Debian) pulled their packages, but in theory SDL still supports them.
- - libsamplerate0-dev lets SDL optionally link to libresamplerate at runtime
- for higher-quality audio resampling. SDL will work without it if the library
- is missing, so it's safe to build in support even if the end user doesn't
- have this library installed.
- - DirectFB isn't included because the configure script (currently) fails to find
- it at all. You can do "sudo apt-get install libdirectfb-dev" and fix the
- configure script to include DirectFB support. Send patches. :)
-
-
- ================================================================================
- Joystick does not work
- ================================================================================
-
- If you compiled or are using a version of SDL with udev support (and you should!)
- there's a few issues that may cause SDL to fail to detect your joystick. To
- debug this, start by installing the evtest utility. On Ubuntu/Debian:
-
- sudo apt-get install evtest
-
- Then run:
-
- sudo evtest
-
- You'll hopefully see your joystick listed along with a name like "/dev/input/eventXX"
- Now run:
-
- cat /dev/input/event/XX
-
- If you get a permission error, you need to set a udev rule to change the mode of
- your device (see below)
-
- Also, try:
-
- sudo udevadm info --query=all --name=input/eventXX
-
- If you see a line stating ID_INPUT_JOYSTICK=1, great, if you don't see it,
- you need to set up an udev rule to force this variable.
-
- A combined rule for the Saitek Pro Flight Rudder Pedals to fix both issues looks
- like:
-
- SUBSYSTEM=="input", ATTRS{idProduct}=="0763", ATTRS{idVendor}=="06a3", MODE="0666", ENV{ID_INPUT_JOYSTICK}="1"
- SUBSYSTEM=="input", ATTRS{idProduct}=="0764", ATTRS{idVendor}=="06a3", MODE="0666", ENV{ID_INPUT_JOYSTICK}="1"
-
- You can set up similar rules for your device by changing the values listed in
- idProduct and idVendor. To obtain these values, try:
-
- sudo udevadm info -a --name=input/eventXX | grep idVendor
- sudo udevadm info -a --name=input/eventXX | grep idProduct
-
- If multiple values come up for each of these, the one you want is the first one of each.
-
- On other systems which ship with an older udev (such as CentOS), you may need
- to set up a rule such as:
-
- SUBSYSTEM=="input", ENV{ID_CLASS}=="joystick", ENV{ID_INPUT_JOYSTICK}="1"
-
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