Description:
sdl has a bug with certain joysticks/pads that allow switching between an analog mode and digital mode, such as PlayStation 2 controllers (via USB adaptor). When the joypad is in analog mode, SDL produces a segfault when any direction on the digital pad is pressed. When in digital mode, the pad works fine (but the analog joysticks are inactive).

As far as I can tell, it is a known bug upstream, the current fix is to define NO_LOGICAL_JOYSTICKS in CFLAGS.

I'm not sure how many joysticks this affects, nor do I know if the current fix will break functionality with other joysticks. Also, the only system I have is x86_64, so I'm not sure if this affects other architectures or not (as far as I can tell, it does).

I've been able to rebuild the sdl package on my x86_64 machine by editing the PKGBUILD file and adding -DNO_LOGICAL_JOYSTICKS to my CFLAGS. After rebuilding, all my joystick-using programs work with the joystick set to analog mode.


Additional info:
* package version(s)
sdl 1.2.13-3 from extra

Steps to reproduce:
Load any joystick using program.
Set joystick to digital mode: joypad works fine.
Set joystick to analog mode, press a direction on the digital pad: segmentation fault.

Again, I'm not sure if this is something that arch should add to CFLAGS or not. Here's the relevant bits of the PKGBUILD file:
#original
build() {
cd ${srcdir}/SDL-${pkgver}
patch -Np1 -i $srcdir/sdl-1.2.13-dynaminc-esd.patch
./configure --prefix=/usr --disable-nasm --enable-alsa --enable-esd --with-x --disable-rpath
make || return 1
make DESTDIR=${pkgdir} install
}

#with NO_LOGICAL_JOYSTICKS
build() {
cd ${srcdir}/SDL-${pkgver}
CFLAGS="$CFLAGS -DNO_LOGICAL_JOYSTICKS"
patch -Np1 -i $srcdir/sdl-1.2.13-dynaminc-esd.patch
./configure --prefix=/usr --disable-nasm --enable-alsa --enable-esd --with-x --disable-rpath
make || return 1
make DESTDIR=${pkgdir} install
}

building like this produces a build of SDL with no segfaults on my joystick in analog mode.