Could NOT find qtpaths executable

[milahu]

qt6ct/CMakeLists.txt

Lines 42 to 43 in e41923d

	get_filename_component(QT_QTPATHS_EXECUTABLE ${QT_LRELEASE_EXECUTABLE} DIRECTORY)
	set(QT_QTPATHS_EXECUTABLE ${QT_QTPATHS_EXECUTABLE}/qtpaths)

problem is:

• lrelease is part of the qttools module
• qtpaths is part of the qtbase module

so, on nixos, these have different prefixes

fixed by using the commented code blocks

--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -24,14 +24,14 @@
 
 find_package(Qt6 COMPONENTS BuildInternals Widgets Concurrent LinguistTools REQUIRED)
 
-#get_target_property(QT_QTPATHS_EXECUTABLE Qt6::qtpaths IMPORTED_LOCATION)
+get_target_property(QT_QTPATHS_EXECUTABLE Qt6::qtpaths IMPORTED_LOCATION)
 get_target_property(QT_LRELEASE_EXECUTABLE Qt6::lrelease IMPORTED_LOCATION)
 
-#if(QT_QTPATHS_EXECUTABLE)
-#    message(STATUS "Found qtpaths executable: " ${QT_QTPATHS_EXECUTABLE})
-#else()
-#    message(FATAL_ERROR "Could NOT find qtpaths executable")
-#endif()
+if(QT_QTPATHS_EXECUTABLE)
+    message(STATUS "Found qtpaths executable: " ${QT_QTPATHS_EXECUTABLE})
+else()
+    message(FATAL_ERROR "Could NOT find qtpaths executable")
+endif()
 
 if(QT_LRELEASE_EXECUTABLE)
     message(STATUS "Found lrelease executable: " ${QT_LRELEASE_EXECUTABLE})
@@ -39,15 +39,6 @@
     message(FATAL_ERROR "Could NOT find lrelease executable")
 endif()
 
-get_filename_component(QT_QTPATHS_EXECUTABLE ${QT_LRELEASE_EXECUTABLE} DIRECTORY)
-set(QT_QTPATHS_EXECUTABLE ${QT_QTPATHS_EXECUTABLE}/qtpaths)
-
-if(EXISTS ${QT_QTPATHS_EXECUTABLE})
-    message(STATUS "Found qtpaths executable: " ${QT_QTPATHS_EXECUTABLE})
-else()
-    message(FATAL_ERROR "Could NOT find qtpaths executable")
-endif()
-
 #execute_process(COMMAND ${QT_QTPATHS_EXECUTABLE} -query QT_INSTALL_PLUGINS OUTPUT_VARIABLE PLUGINDIR OUTPUT_STRIP_TRAILING_WHITESPACE)
 execute_process(COMMAND ${QT_QTPATHS_EXECUTABLE} --plugin-dir OUTPUT_VARIABLE PLUGINDIR OUTPUT_STRIP_TRAILING_WHITESPACE)
 message(STATUS "Plugin path: " ${PLUGINDIR})

fixed by using the commented code blocks

is there a good reason this code is commented?
maybe use the current code as fallback?

[spikespaz]

Is this the reason that it can't find my kvantum theme? All I have is "Fusion" and "Windows" when I try to configure via the GUI.

[spikespaz]

Obviously this needs to be called with pkgs.qt6.callPackage and not the other two.
It compiles perfectly fine but doesn't find the Kvantum (or any other) themes.

{
  stdenv,
  lib,
  fetchFromGitHub,
  wrapQtAppsHook,
  qtbase,
  qtsvg,
  qttools,
  qmake,
  qtwayland,
}:
stdenv.mkDerivation rec {
  pname = "qt6ct";
  version = "0.7";

  src = fetchFromGitHub {
    owner = "trialuser02";
    repo = "qt6ct";
    rev = version;
    sha256 = "sha256-7WuHdb7gmdC/YqrPDT7OYbD6BEm++EcIkmORW7cSPDE=";
  };

  nativeBuildInputs = [qmake qttools qtwayland wrapQtAppsHook];

  buildInputs = [qtbase qtsvg];

  qmakeFlags = [
    "LRELEASE_EXECUTABLE=${lib.getDev qttools}/bin/lrelease"
    "PLUGINDIR=${placeholder "out"}/${qtbase.qtPluginPrefix}"
  ];

  # meta = with lib; {
  #   description = "Qt5 Configuration Tool";
  #   homepage = "https://www.opendesktop.org/content/show.php?content=168066";
  #   platforms = platforms.linux;
  #   license = licenses.bsd2;
  #   maintainers = with maintainers; [ralith];
  # };
}

[milahu]

Is this the reason that it can't find my kvantum theme?

no. qt themes should be in $QT_PLUGIN_PATH on runtime (not on compiletime)

  qmakeFlags = [
    "LRELEASE_EXECUTABLE=${lib.getDev qttools}/bin/lrelease"

see also NixOS/nixpkgs#214943

[jonaski]

#31 should fix this.
Not sure what the idea behind setting the qtpaths executable from the path to lconvert, but I made it fallback to that only if qtpaths is not found normally.