diff --git a/pkgs/default.nix b/pkgs/default.nix

index 449bff3ebe0a28110f77dfb384e0352dba85a455..1386c2884a950eb0efbf07ff7f72b64ef3915e3e 100644

--- a/pkgs/default.nix

+++ b/pkgs/default.nix

@@ -77,6 +77,7 @@ gpxlib = callPackage ./development/libraries/gpxlib { };

 hfst = callPackage ./development/libraries/hfst { };

 libshell = callPackage ./development/libraries/libshell { };

 microjson = callPackage ./development/libraries/microjson { };

• qt6 = callPackage ./development/libraries/qt-6 { };

 ### DEVELOPMENT / PERL MODULES

diff --git a/pkgs/development/libraries/qt-6/default.nix b/pkgs/development/libraries/qt-6/default.nix

new file mode 100644

index 0000000000000000000000000000000000000000..e6daf3c8dd4a6bb9e6ac28c07d16e00b315eead4

--- /dev/null

+++ b/pkgs/development/libraries/qt-6/default.nix

@@ -0,0 +1,112 @@

+# https://gist.github.com/rprospero/dd8e16bad9f842409c85e63ade31c355

+{ lib, stdenv, fetchurl, requireFile, python3Packages, p7zip, libmysqlclient, autoPatchelfHook

+, dbus, libxkbcommon, gdk-pixbuf, libdrm, libgssglue, mysql, gtkd

+, cups, pango, postgresql, libGL, libglvnd, xorg, unixODBC }:

+let

• aqt = python3Packages.buildPythonPackage rec {

• pname = "aqtinstall";

• version = "1.2.4";

• src = python3Packages.fetchPypi {

•  inherit pname version;
  

•  sha256 = "fmaAYOSHrx5LVUoPlIw0p/0jMRVGSPE+teEVlNurz10=";
  

• };

• propagatedBuildInputs = [

•  python3Packages.setuptools-scm
  

•  python3Packages.texttable
  

•  python3Packages.patch
  

•  python3Packages.requests
  

•  semantic_version
  

•  p7zip
  

• ];

• pipInstallFlags = [ "--no-deps" ];

• doCheck = false;

• };

• semantic_version = python3Packages.buildPythonPackage rec {

• pname = "semantic_version";

• version = "2.8.5";

• src = python3Packages.fetchPypi {

•  inherit pname version;
  

•  sha256 = "0sst4FWHYpNGebmhBOguynr0SMn0l00fPuzP9lHfilQ=";
  

• };

• propagatedBuildInputs =

• [ python3Packages.setuptools-scm python3Packages.semantic_verion ];

• pipInstallFlags = [ "--no-deps" ];

• doCheck = false;

• };

• qtbase = requireFile {

• name = "6.1.1-0-202106031044qtbase-Linux-CentOS_8_3-GCC-Linux-CentOS_8_3-X86_64.7z";

• message = ''

•  Download https://mirrors.ukfast.co.uk/sites/qt.io/online/qtsdkrepository/linux_x64/desktop/qt6_611/qt.qt6.611.gcc_64/6.1.1-0-202106031044qtbase-Linux-CentOS_8_3-GCC-Linux-CentOS_8_3-X86_64.7z
  

•  and add it to the nix store with nix-store --add-fixed sha256 <FILE>.
  

• '';

• sha256 = "fcE1ShAuAbKPihOG4OILnijM0mgAsa5l8V8V1bOYykM=";

• };

• qtsvg = requireFile {

• name = "6.1.1-0-202106031044qtsvg-Linux-CentOS_8_3-GCC-Linux-CentOS_8_3-X86_64.7z";

• message = ''

•  Download https://mirrors.ukfast.co.uk/sites/qt.io/online/qtsdkrepository/linux_x64/desktop/qt6_611/qt.qt6.611.gcc_64/6.1.1-0-202106031044qtsvg-Linux-CentOS_8_3-GCC-Linux-CentOS_8_3-X86_64.7z
  

•  and add it to the nix store with nix-store --add-fixed sha256 <FILE>.
  

• '';

• sha256 = "zO9CAMNN7k5k51V4JcrCZFbAag3sn2gmd0YoYvh+qng=";

• };

+in stdenv.mkDerivation {

• pname = "qt6";

• version = "6.1.1";

• unpackPhase = ''

• ${p7zip}/bin/7z x ${qtbase} -o$out

• ${p7zip}/bin/7z x ${qtsvg} -o$out

• '';

• installPhase = ''

• mkdir $out/lib

• ln -s ${libmysqlclient}/lib/mysql/libmysqlclient.so $out/lib/libmysqlclient.so.21

• patchelf --set-rpath $out/lib $out/6.1.1/gcc_64/lib/libQt6Core.so.6.1.1

• echo No Install

• '';

• nativeBuildInputs = [ autoPatchelfHook ];

• autoPatchelfIgnoreMissingDeps = false;

• buildInputs = [

• dbus

• libxkbcommon

• stdenv.cc.cc.lib

• gdk-pixbuf

• libdrm

• (import ./icu.nix {

•  inherit lib stdenv fetchurl;
  

•  version = "56.1";
  

•  sha256 = "OmTpEFxzTc9jHAs+1gQEUxvObA9aZL/hpkAqTMIxSBY=";
  

• })

• libgssglue

• mysql

• libmysqlclient.dev

• gtkd

• cups

• pango

• postgresql

• libGL

• libglvnd

• libglvnd.dev

• xorg.xcbutil

• xorg.xcbutilwm

• xorg.xcbutilkeysyms

• xorg.xcbutilimage

• xorg.xcbutilrenderutil

• unixODBC

• ];

• meta = with lib; {

• homepage = "http://www.qt.io";

• description = "A cross-platform application framework for C++";

• license = with licenses; [ fdl13 gpl2 lgpl21 lgpl3 ];

• maintainers = [ maintainers.sikmir ];

• platforms = platforms.unix;

• ci.skip = true;

• };

+}

diff --git a/pkgs/development/libraries/qt-6/icu.nix b/pkgs/development/libraries/qt-6/icu.nix

new file mode 100644

index 0000000000000000000000000000000000000000..06b516c73cb5a57097a8f47becb43fdcc4a39780

--- /dev/null

+++ b/pkgs/development/libraries/qt-6/icu.nix

@@ -0,0 +1,94 @@

+# https://gist.github.com/rprospero/dd8e16bad9f842409c85e63ade31c355

+{ lib, stdenv, fetchurl, version, sha256, patches ? [], patchFlags ? [] }:

+let

• buildRootOnly = false;

• pname = "icu4c";

• baseAttrs = {

• src = fetchurl {

•  url = "https://github.com/unicode-org/icu/releases/download/release-${lib.replaceChars [ "." ] [ "-" ] version}/icu4c-${lib.replaceChars [ "." ] [ "_" ] version}-src.tgz";
  

•  inherit sha256;
  

• };

• postUnpack = ''

•  sourceRoot=''${sourceRoot}/source
  

•  echo Source root reset to ''${sourceRoot}
  

• '';

• https://sourceware.org/glibc/wiki/Release/2.26#Removal_of_.27xlocale.h.27

• postPatch = if (stdenv.hostPlatform.libc == "glibc" || stdenv.hostPlatform.libc == "musl") && lib.versionOlder version "62.1"

•  then "substituteInPlace i18n/digitlst.cpp --replace '<xlocale.h>' '<locale.h>'"
  

•  else null; # won't find locale_t on darwin
  

• inherit patchFlags patches;

• preConfigure = ''

•  sed -i -e "s|/bin/sh|${stdenv.shell}|" configure
  

•  # $(includedir) is different from $(prefix)/include due to multiple outputs
  

•  sed -i -e 's|^\(CPPFLAGS = .*\) -I\$(prefix)/include|\1 -I$(includedir)|' config/Makefile.inc.in
  

• '' + lib.optionalString stdenv.isAarch32 ''

•  # From https://archlinuxarm.org/packages/armv7h/icu/files/icudata-stdlibs.patch
  

•  sed -e 's/LDFLAGSICUDT=-nodefaultlibs -nostdlib/LDFLAGSICUDT=/' -i config/mh-linux
  

• '';

• configureFlags = [ "--disable-debug" ]

•  ++ lib.optional (stdenv.isFreeBSD || stdenv.isDarwin) "--enable-rpath";
  

• enableParallelBuilding = true;

• meta = with lib; {

•  description = "Unicode and globalization support library";
  

•  homepage = "http://site.icu-project.org/";
  

•  maintainers = [ maintainers.sikmir ];
  

•  platforms = platforms.all;
  

•  skip.ci = true;
  

• };

• };

• realAttrs = baseAttrs // {

• name = pname + "-" + version;

• outputs = [ "out" "dev" ];

• outputBin = "dev";

• remove dependency on bootstrap-tools in early stdenv build

• postInstall = lib.optionalString stdenv.isDarwin ''

•  sed -i 's/INSTALL_CMD=.*install/INSTALL_CMD=install/' $out/lib/icu/${version}/pkgdata.inc
  

• '' + (let

•  replacements = [
  

•    { from = "\${prefix}/include"; to = "${placeholder "dev"}/include"; } # --cppflags-searchpath
  

•    { from = "\${pkglibdir}/Makefile.inc"; to = "${placeholder "dev"}/lib/icu/Makefile.inc"; } # --incfile
  

•    { from = "\${pkglibdir}/pkgdata.inc"; to = "${placeholder "dev"}/lib/icu/pkgdata.inc"; } # --incpkgdatafile
  

•  ];
  

• in ''

•  substituteInPlace "$dev/bin/icu-config" \
  

•    ${lib.concatMapStringsSep " " (r: "--replace '${r.from}' '${r.to}'") replacements}
  

• '');

• postFixup = ''moveToOutput lib/icu "$dev" '';

• };

• buildRootOnlyAttrs = baseAttrs // {

• name = pname + "-build-root-" + version;

• preConfigure = baseAttrs.preConfigure + ''

•  mkdir build
  

•  cd build
  

•  configureScript=../configure
  

• '';

• postBuild = ''

•  cd ..
  

•  mv build $out
  

•  echo "Doing build-root only, exiting now" >&2
  

•  exit 0
  

• '';

• };

• attrs = if buildRootOnly

•        then buildRootOnlyAttrs
  

•      else realAttrs;
  

+in

+stdenv.mkDerivation attrs