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57908c1624
Most other packages don't move `.a` files to "$dev", and that is because it makes the pkg-config `.pc` file wrong (the `libdir` is the non-dev one). Keeping them in the main output makes static linking of SDL2 work. See added comment about pruning of `.la` files.
131 lines
5 KiB
Nix
131 lines
5 KiB
Nix
{ stdenv, config, fetchurl, pkgconfig
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, libGLSupported ? stdenv.lib.elem stdenv.hostPlatform.system stdenv.lib.platforms.mesaPlatforms
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, openglSupport ? libGLSupported, libGL
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, alsaSupport ? stdenv.isLinux && !stdenv.hostPlatform.isAndroid, alsaLib
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, x11Support ? !stdenv.isCygwin && !stdenv.hostPlatform.isAndroid
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, libX11, xorgproto, libICE, libXi, libXScrnSaver, libXcursor
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, libXinerama, libXext, libXxf86vm, libXrandr
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, waylandSupport ? stdenv.isLinux && !stdenv.hostPlatform.isAndroid
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, wayland, wayland-protocols, libxkbcommon
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, dbusSupport ? stdenv.isLinux && !stdenv.hostPlatform.isAndroid, dbus
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, udevSupport ? false, udev
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, ibusSupport ? false, ibus
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, fcitxSupport ? false, fcitx
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, pulseaudioSupport ? config.pulseaudio or stdenv.isLinux && !stdenv.hostPlatform.isAndroid
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, libpulseaudio
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, AudioUnit, Cocoa, CoreAudio, CoreServices, ForceFeedback, OpenGL
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, audiofile, libiconv
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}:
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# NOTE: When editing this expression see if the same change applies to
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# SDL expression too
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with stdenv.lib;
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stdenv.mkDerivation rec {
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pname = "SDL2";
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version = "2.0.10";
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src = fetchurl {
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url = "https://www.libsdl.org/release/${pname}-${version}.tar.gz";
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sha256 = "0mqxp6w5jhbq6y1j690g9r3gpzwjxh4czaglw8x05l7hl49nqrdl";
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};
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outputs = [ "out" "dev" ];
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outputBin = "dev"; # sdl-config
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patches = [ ./find-headers.patch ];
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# Fix with mesa 19.2: https://bugzilla.libsdl.org/show_bug.cgi?id=4797
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postPatch = ''
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substituteInPlace include/SDL_opengl_glext.h \
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--replace "typedef ptrdiff_t GLsizeiptr;" "typedef signed long int khronos_ssize_t; typedef khronos_ssize_t GLsizeiptr;" \
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--replace "typedef ptrdiff_t GLintptr;" "typedef signed long int khronos_intptr_t; typedef khronos_intptr_t GLintptr;"
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'';
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nativeBuildInputs = [ pkgconfig ];
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propagatedBuildInputs = dlopenPropagatedBuildInputs;
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dlopenPropagatedBuildInputs = [ ]
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# Propagated for #include <GLES/gl.h> in SDL_opengles.h.
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++ optional openglSupport libGL
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# Propagated for #include <X11/Xlib.h> and <X11/Xatom.h> in SDL_syswm.h.
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++ optionals x11Support [ libX11 xorgproto ];
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dlopenBuildInputs = [ ]
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++ optionals alsaSupport [ alsaLib audiofile ]
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++ optional dbusSupport dbus
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++ optional pulseaudioSupport libpulseaudio
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++ optional udevSupport udev
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++ optionals waylandSupport [ wayland wayland-protocols libxkbcommon ]
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++ optionals x11Support [ libICE libXi libXScrnSaver libXcursor libXinerama libXext libXrandr libXxf86vm ];
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buildInputs = [ libiconv ]
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++ dlopenBuildInputs
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++ optional ibusSupport ibus
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++ optional fcitxSupport fcitx
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++ optionals stdenv.isDarwin [ AudioUnit Cocoa CoreAudio CoreServices ForceFeedback OpenGL ];
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enableParallelBuilding = true;
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configureFlags = [
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"--disable-oss"
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] ++ optional (!x11Support) "--without-x"
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++ optional alsaSupport "--with-alsa-prefix=${alsaLib.out}/lib"
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++ optional stdenv.isDarwin "--disable-sdltest";
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# We remove libtool .la files when static libs are requested,
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# because they make the builds of downstream libs like `SDL_tff`
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# fail with `cannot find -lXext, `-lXcursor` etc. linker errors
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# because the `.la` files are not pruned if static libs exist
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# (see https://github.com/NixOS/nixpkgs/commit/fd97db43bcb05e37f6bb77f363f1e1e239d9de53)
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# and they also don't carry the necessary `-L` paths of their
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# X11 dependencies.
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# For static linking, it is better to rely on `pkg-config` `.pc`
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# files.
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postInstall = ''
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if [ "$dontDisableStatic" -eq "1" ]; then
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rm $out/lib/*.la
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else
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rm $out/lib/*.a
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fi
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moveToOutput bin/sdl2-config "$dev"
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'';
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# SDL is weird in that instead of just dynamically linking with
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# libraries when you `--enable-*` (or when `configure` finds) them
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# it `dlopen`s them at runtime. In principle, this means it can
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# ignore any missing optional dependencies like alsa, pulseaudio,
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# some x11 libs, wayland, etc if they are missing on the system
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# and/or work with wide array of versions of said libraries. In
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# nixpkgs, however, we don't need any of that. Moreover, since we
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# don't have a global ld-cache we have to stuff all the propagated
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# libraries into rpath by hand or else some applications that use
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# SDL API that requires said libraries will fail to start.
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#
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# You can grep SDL sources with `grep -rE 'SDL_(NAME|.*_SYM)'` to
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# list the symbols used in this way.
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postFixup = let
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rpath = makeLibraryPath (dlopenPropagatedBuildInputs ++ dlopenBuildInputs);
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in optionalString (stdenv.hostPlatform.extensions.sharedLibrary == ".so") ''
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for lib in $out/lib/*.so* ; do
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if ! [[ -L "$lib" ]]; then
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patchelf --set-rpath "$(patchelf --print-rpath $lib):${rpath}" "$lib"
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fi
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done
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'';
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setupHook = ./setup-hook.sh;
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passthru = { inherit openglSupport; };
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meta = with stdenv.lib; {
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description = "A cross-platform multimedia library";
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homepage = http://www.libsdl.org/;
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license = licenses.zlib;
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platforms = platforms.all;
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maintainers = with maintainers; [ cpages ];
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};
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}
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