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Enable dynamic support for `libdecor` inside SDL3 

Done by locally building & installing `libdecor` before building SDL3.

Note that the `libdecor` binaries aren't shipped here, because I can't
make them work inside C# apps. It looks like both SDL and `libdecor`
do some level of automagic lookup of shared objects; SDL does it to find
`libdecor`, and `libdecor` does it to find its "plugins" which are
really implementations of the window decoration (if it fails to find
any, it just disables itself).

So this is just going to depend on system-ambient `libdecor` to be
present, and if there is none, then it'll fail to work. See if I care.

At this point I would like to extend my thanks to the gnome team for
wasting a day of my life on all this.

Note that x86 SDL binaries will not have this `libdecor` support enabled,
because SDL uses cmake and `libdecor` uses meson, and there is no
portable way to tell them both to build a 32-bit binary. Well, that's a
half-truth; you can pass CFLAGS to meson via envvars, *but* the install
script later will just install the resulting binaries as if they were
x64, which leads SDL cmake to not find them, and therefore not enable
dynamic `libdecor` support. So let's just not bother.
This commit is contained in:
Bartłomiej Dach 2024-05-22 11:56:41 +02:00
parent e6dff89353
commit 0fd6a6c930
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20
build.sh
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@ -32,10 +32,12 @@ if [[ $RUNNER_OS == 'Linux' ]]; then
$SUDO apt-get install -y \ $SUDO apt-get install -y \
$GCC \ $GCC \
$GPP \ $GPP \
git \
cmake \ cmake \
ninja-build \ ninja-build \
wayland-scanner++ \ wayland-scanner++ \
wayland-protocols \ wayland-protocols \
meson \
pkg-config$TARGET_APT_ARCH \ pkg-config$TARGET_APT_ARCH \
libasound2-dev$TARGET_APT_ARCH \ libasound2-dev$TARGET_APT_ARCH \
libdbus-1-dev$TARGET_APT_ARCH \ libdbus-1-dev$TARGET_APT_ARCH \
@ -43,7 +45,9 @@ if [[ $RUNNER_OS == 'Linux' ]]; then
libgl1-mesa-dev$TARGET_APT_ARCH \ libgl1-mesa-dev$TARGET_APT_ARCH \
libgles2-mesa-dev$TARGET_APT_ARCH \ libgles2-mesa-dev$TARGET_APT_ARCH \
libglu1-mesa-dev$TARGET_APT_ARCH \ libglu1-mesa-dev$TARGET_APT_ARCH \
libgtk-3-dev$TARGET_APT_ARCH \
libibus-1.0-dev$TARGET_APT_ARCH \ libibus-1.0-dev$TARGET_APT_ARCH \
libpango1.0-dev$TARGET_APT_ARCH \
libpulse-dev$TARGET_APT_ARCH \ libpulse-dev$TARGET_APT_ARCH \
libsndio-dev$TARGET_APT_ARCH \ libsndio-dev$TARGET_APT_ARCH \
libudev-dev$TARGET_APT_ARCH \ libudev-dev$TARGET_APT_ARCH \
@ -62,8 +66,24 @@ if [[ $RUNNER_OS == 'Linux' ]]; then
libdrm-dev$TARGET_APT_ARCH \ libdrm-dev$TARGET_APT_ARCH \
libgbm-dev$TARGET_APT_ARCH \ libgbm-dev$TARGET_APT_ARCH \
libpulse-dev$TARGET_APT_ARCH libpulse-dev$TARGET_APT_ARCH
if [[ $TARGET_APT_ARCH != :i386 ]]; then
# Build libdecor.
# This is required so that window decorations can work on wayland.
# The support will only be enabled in SDL, but we're not shipping the libdecor binaries
# because making them work from a c# app as everything else does (via runtimes) is too difficult.
# Also skip i386 because attempting to support this for i386 is a pain.
# Special shoutouts to gnome for refusing to support server-side decorations.
git clone https://gitlab.freedesktop.org/libdecor/libdecor.git
cd libdecor
git checkout 0.2.2
meson build --buildtype release
$SUDO meson install -C build
cd ..
fi
fi fi
cmake -B build $FLAGS -DCMAKE_BUILD_TYPE=$BUILD_TYPE -DSDL_SHARED_ENABLED_BY_DEFAULT=ON -DSDL_STATIC_ENABLED_BY_DEFAULT=ON cmake -B build $FLAGS -DCMAKE_BUILD_TYPE=$BUILD_TYPE -DSDL_SHARED_ENABLED_BY_DEFAULT=ON -DSDL_STATIC_ENABLED_BY_DEFAULT=ON
# Build # Build