mirror of
https://github.com/NixOS/nixpkgs.git
synced 2024-12-27 16:15:05 +00:00
4bff6d04e4
The glvnd library contains a copy of the OpenGL headers. By compiling against the glvnd headers we completely avoid a dependency on Mesa (and LLVM). This reduces rebuild time. It also prevents accidents, such as where some packages kept a reference to the mesa.drivers output and thus had all Mesa drivers in their runtime closure.
76 lines
2.0 KiB
Nix
76 lines
2.0 KiB
Nix
{ stdenv
|
||
, libglvnd, mesa
|
||
, OpenGL }:
|
||
|
||
stdenv.mkDerivation {
|
||
inherit (libglvnd) version;
|
||
pname = "libGL";
|
||
outputs = [ "out" "dev" ];
|
||
|
||
# On macOS, libglvnd is not supported, so we just use what mesa
|
||
# build. We need to also include OpenGL.framework, and some
|
||
# extra tricks to go along with. We add mesa’s libGLX to support
|
||
# the X extensions to OpenGL.
|
||
buildCommand = if stdenv.hostPlatform.isDarwin then ''
|
||
mkdir -p $out/nix-support $dev
|
||
echo ${OpenGL} >> $out/nix-support/propagated-build-inputs
|
||
ln -s ${mesa.out}/lib $out/lib
|
||
|
||
mkdir -p $dev/lib/pkgconfig $dev/nix-support
|
||
echo "$out" > $dev/nix-support/propagated-build-inputs
|
||
ln -s ${mesa.dev}/include $dev/include
|
||
|
||
cat <<EOF >$dev/lib/pkgconfig/gl.pc
|
||
Name: gl
|
||
Description: gl library
|
||
Version: ${mesa.version}
|
||
Libs: -L${mesa.out}/lib -lGL
|
||
Cflags: -I${mesa.dev}/include
|
||
EOF
|
||
|
||
cat <<EOF >$dev/lib/pkgconfig/glesv1_cm.pc
|
||
Name: glesv1_cm
|
||
Description: glesv1_cm library
|
||
Version: ${mesa.version}
|
||
Libs: -L${mesa.out}/lib -lGLESv1_CM
|
||
Cflags: -I${mesa.dev}/include
|
||
EOF
|
||
|
||
cat <<EOF >$dev/lib/pkgconfig/glesv2.pc
|
||
Name: glesv2
|
||
Description: glesv2 library
|
||
Version: ${mesa.version}
|
||
Libs: -L${mesa.out}/lib -lGLESv2
|
||
Cflags: -I${mesa.dev}/include
|
||
EOF
|
||
''
|
||
|
||
# Otherwise, setup gl stubs to use libglvnd.
|
||
else ''
|
||
mkdir -p $out/nix-support
|
||
ln -s ${libglvnd.out}/lib $out/lib
|
||
|
||
mkdir -p $dev/{,lib/pkgconfig,nix-support}
|
||
echo "$out ${libglvnd} ${libglvnd.dev}" > $dev/nix-support/propagated-build-inputs
|
||
ln -s ${libglvnd.dev}/include $dev/include
|
||
|
||
genPkgConfig() {
|
||
local name="$1"
|
||
local lib="$2"
|
||
|
||
cat <<EOF >$dev/lib/pkgconfig/$name.pc
|
||
Name: $name
|
||
Description: $lib library
|
||
Version: ${libglvnd.version}
|
||
Libs: -L${libglvnd.out}/lib -l$lib
|
||
Cflags: -I${libglvnd.dev}/include
|
||
EOF
|
||
}
|
||
|
||
genPkgConfig gl GL
|
||
genPkgConfig egl EGL
|
||
genPkgConfig glesv1_cm GLESv1_CM
|
||
genPkgConfig glesv2 GLESv2
|
||
'';
|
||
}
|