85 lines
2.5 KiB
Nix
85 lines
2.5 KiB
Nix
{ stdenv, libglvnd, mesa, OpenGL, testers }:
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stdenv.mkDerivation (finalAttrs: {
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pname = "libGL";
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inherit (if stdenv.hostPlatform.isDarwin then mesa else libglvnd) version;
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outputs = [ "out" "dev" ];
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# On macOS, libglvnd is not supported, so we just use what mesa
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# build. We need to also include OpenGL.framework, and some
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# extra tricks to go along with. We add mesa’s libGLX to support
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# the X extensions to OpenGL.
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buildCommand = if stdenv.hostPlatform.isDarwin then ''
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mkdir -p $out/nix-support $dev
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echo ${OpenGL} >> $out/nix-support/propagated-build-inputs
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ln -s ${mesa.out}/lib $out/lib
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mkdir -p $dev/lib/pkgconfig $dev/nix-support
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echo "$out" > $dev/nix-support/propagated-build-inputs
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ln -s ${mesa.dev}/include $dev/include
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cat <<EOF >$dev/lib/pkgconfig/gl.pc
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Name: gl
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Description: gl library
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Version: ${mesa.version}
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Libs: -L${mesa.out}/lib -lGL
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Cflags: -I${mesa.dev}/include
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EOF
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cat <<EOF >$dev/lib/pkgconfig/glesv1_cm.pc
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Name: glesv1_cm
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Description: glesv1_cm library
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Version: ${mesa.version}
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Libs: -L${mesa.out}/lib -lGLESv1_CM
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Cflags: -I${mesa.dev}/include
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EOF
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cat <<EOF >$dev/lib/pkgconfig/glesv2.pc
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Name: glesv2
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Description: glesv2 library
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Version: ${mesa.version}
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Libs: -L${mesa.out}/lib -lGLESv2
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Cflags: -I${mesa.dev}/include
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EOF
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''
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# Otherwise, setup gl stubs to use libglvnd.
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else ''
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mkdir -p $out/nix-support
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ln -s ${libglvnd.out}/lib $out/lib
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mkdir -p $dev/{,lib/pkgconfig,nix-support}
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echo "$out ${libglvnd} ${libglvnd.dev}" > $dev/nix-support/propagated-build-inputs
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ln -s ${libglvnd.dev}/include $dev/include
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genPkgConfig() {
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local name="$1"
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local lib="$2"
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cat <<EOF >$dev/lib/pkgconfig/$name.pc
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Name: $name
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Description: $lib library
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Version: ${libglvnd.version}
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Libs: -L${libglvnd.out}/lib -l$lib
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Cflags: -I${libglvnd.dev}/include
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EOF
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}
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genPkgConfig gl GL
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genPkgConfig egl EGL
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genPkgConfig glesv1_cm GLESv1_CM
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genPkgConfig glesv2 GLESv2
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'';
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passthru.tests.pkg-config = testers.testMetaPkgConfig finalAttrs.finalPackage;
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meta = {
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description = "Stub bindings using "
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+ (if stdenv.hostPlatform.isDarwin then "mesa" else "libglvnd");
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pkgConfigModules = [ "gl" "egl" "glesv1_cm" "glesv2" ];
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} // {
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inherit (if stdenv.hostPlatform.isDarwin then mesa.meta else libglvnd.meta)
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homepage license platforms;
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};
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})
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