ports/qt6.nix

Qt 6 for Fil-C. Check with:

nix build -L --impure --expr 'import ./tests/qt6.nix { }'

λpkgs, final

λqfinal qprev

CMake's cross-build check also applies to modules built against qtbase.

6qtModule=

args: qprev.qtModuleargs // cmakeFlags = args.cmakeFlags or [ ] ++ "-DQT_HOST_PATH=${pkgs.qt6.qtbase}";

Nixpkgs supplies imageformat dependencies here, but QtSvg only links QtCore, QtGui and zlib (already propagated by qtbase). Jasper pulls in an unrelated libheif/Rust/cross-GCC toolchain.

20qtsvg=

qprev.qtsvg.overrideAttrsbuildInputs = [ ];

22qtshadertools=

qprev.qtshadertools.overrideAttrsold: cmakeFlags = old.cmakeFlags ++ "-DQt6ShaderToolsTools_DIR=${pkgs.qt6.qtshadertools}/lib/cmake/Qt6ShaderToolsTools";

28qtdeclarative=

qprev.qtdeclarative.overrideAttrs

λold

29patches=

old.patches ++ ../patches/qt6-declarative-filc.patch

30cmakeFlags=

old.cmakeFlags ++ "-DQT_FEATURE_qml_jit=OFF" "-DQt6QmlTools_DIR=${pkgs.qt6.qtdeclarative}/lib/cmake/Qt6QmlTools" "-DQt6QuickTools_DIR=${pkgs.qt6.qtdeclarative}/lib/cmake/Qt6QuickTools" "-DQt6ShaderToolsTools_DIR=${pkgs.qt6.qtshadertools}/lib/cmake/Qt6ShaderToolsTools" "-DQT_FEATURE_quick=ON"

39qtbase=

qprev.qtbase.overridewithGtk3 = false; libxkbcommon = final.libxkbcommon.overrideAttrsold: mesonFlags = mapf: if f ≡ "-Denable-x11=false" then "-Denable-x11=true" else f old.mesonFlags; postPatch = old.postPatch or "" + '' substituteInPlace meson.build --replace-fail \ "if get_option('enable-x11') has_xvfb" \ "if false has_xvfb" '';; qttranslations = null;.overrideAttrs

The Fil-C GTK 3 port has no X11 backend (gdk/gdkx.h).

Same X11-enabled dependency as Qt 5. Its Xvfb tests use unsupported __start_/__stop_ section symbols, so omit those tests, not the backend.

Fil-C programs can run on the build machine, but this is still a cross build. Do not pull translations and their target qttools into qtbase; use the native tools explicitly below.

λold

63patches=

old.patches

../patches/qt6-base-filc.patch

../patches/qt6-container-rotate-filc.patch

forkfd_wait() probes raw waitid even with FFD_USE_FORK.

../patches/qt5-forkfd-fork.patch

69cmakeFlags=

old.cmakeFlags

"-DQT_HOST_PATH=${pkgs.qt6.qtbase}"

"-DQt6HostInfo_DIR=${pkgs.qt6.qtbase}/lib/cmake/Qt6HostInfo"

.symver module assembly is unsupported by Fil-C.

"-DQT_FEATURE_version_tagging=OFF"

The small configure probe passes, but Qt's generated script uses character-class globs that Fil-C's driver cannot parse.

"-DHAVE_LD_VERSION_SCRIPT=OFF"

QProcess must use fork(), not vfork()/clone(CLONE_PIDFD).

"-DQT_FEATURE_forkfd_pidfd=OFF"