Add instructions to install with qt-base-dev.

CMakeLists.txt

@@ -4,7 +4,7 @@
 ## Author: Shaun Reed | Contact: shaunrd0@gmail.com | URL: www.shaunreed.com  ##
 ## All Content (c) 2025 Shaun Reed, all rights reserved                       ##
 ################################################################################
-cmake_minimum_required(VERSION 3.23)
+cmake_minimum_required(VERSION 3.28)
 
 ################################################################################
 # Constants
@@ -205,3 +205,25 @@ foreach(VAR_NAME IN LISTS VAR_NAMES VAR_PATHS)
     message(STATUS "[Qtk] ${VAR_NAME}=${${VAR_NAME}}")
   endif()
 endforeach()
+message(STATUS "[Qtk] Installation prefix: ${CMAKE_INSTALL_PREFIX}")
+message(STATUS "[Qtk] Found Qt6: ${Qt6Core_VERSION}")
+
+# qt_generate_deploy_app_script is supported on Linux in QtCore >= 6.5.0.
+# qt_generate_deploy_app_script supports Windows and OSX in QtCore >= 6.3.
+# https://doc.qt.io/qt-6.5/qt-generate-deploy-app-script.html
+# https://doc.qt.io/archives/qt-6.4/qt-generate-deploy-app-script.html
+# The application can still build and run, we just can't install.
+if(QTK_GUI OR QTK_EXAMPLE)
+  if(UNIX AND NOT APPLE)
+    # Ubuntu 24.04 provides QtCore 6.4.2 in qt-base-dev.
+    # This version of qt_generate_deploy_app_script does not support Linux.
+    if (Qt6_VERSION VERSION_LESS "6.5.0")
+      message(WARNING "[Qtk] Installation is only supported on Qt >=6.5.\n")
+    endif()
+  elseif(APPLE OR WIN32)
+    # Predates qt_generate_deploy_app_script.
+    if (Qt6_VERSION VERSION_LESS "6.3.0")
+      message(WARNING "[Qtk] Installation is only supported on Qt >=6.5.\n")
+    endif()
+  endif()
+endif()

README.md

@@ -67,7 +67,7 @@ Key features that are planned:
 - [ ] Basic text editor for quickly modifying shaders attached to objects.
 - [ ] Reduce size of application resources and git references.
 
-For examples of using the libqtk API, see the [example-app](./example-app)
+For examples of using libqtk, see the [example-app](./example-app)
 project in the root of this repository.
 
 To get textures loading on models look
@@ -82,13 +82,19 @@ Simply open the root `CMakeLists.txt` with either of these editors and default
 configurations will be loaded. To simplify providing Qt to the build, Qt Creator
 is the recommended option.
 
-This project has been ported to **Qt 6.6.0**, which is not yet available in
+If you have manually installed [Qt6 Open Source Binaries](https://www.qt.io/download-qt-installer)
-Ubuntu apt repositories.
+for your system, be sure to correctly set your `CMAKE_PREFIX_PATH` in the next steps.
-To run this project, you will *need* to
+On Ubuntu 24.04 the default installation directory to use for this path using Qt 6.5.0 is `$HOME/Qt/6.5.0/gcc_64/lib/cmake`.
-install [Qt6 Open Source Binaries](https://www.qt.io/download-qt-installer) for
+
-your system, **version 6.6.0** or later.
+The Ubuntu apt repositories contain all the packages we need to build all targets.
-Be sure to take note of the Qt6 installation directory, as we will need it to
+To build Qtk desktop application with the scene in the screenshots below run the following commands.
-correctly set our `CMAKE_PREFIX_PATH` in the next steps.
+
+```bash
+sudo apt update && sudo apt install cmake build-essential git ccache libxkbcommon-dev libassimp-dev qt6-base-dev qt6-tools-dev
+cmake -DQTK_GUI_SCENE=ON -B build
+cmake --build build
+./build/bin/qtk_gui
+```
 
 #### Build Options
 
@@ -146,7 +152,7 @@ For this example we will configure the build with all options enabled.
 In the separate sections below we can install individual components with cmake.
 
 ```bash
-sudo apt update -y && sudo apt install libassimp-dev cmake build-essential git ccache libgl1-mesa-dev libglvnd-dev zlib1g-dev -y
+sudo apt update -y && sudo apt install cmake build-essential git ccache libxkbcommon-dev libassimp-dev qt6-base-dev qt6-tools-dev -y
 git clone https://github.com/shaunrd0/qtk
 cd qtk
 # Configure the build with all components enabled
@@ -265,7 +271,7 @@ This project is using `clang-format` version `>=15.0.5`.
 On Ubuntu 24.04, clang-format 18 is available to install in apt repositories.
 
 ```bash
-sudo apt install clang-format
+sudo apt install clang-format clang-tidy
 ```
 
 If `clang-format --version` is any earlier than `15.0.0`, running `clang-format` will fail because this project uses configuration options made available since `15.0.0`.

example-app/CMakeLists.txt

@@ -80,6 +80,10 @@ target_link_libraries(qtk_example PUBLIC Qt6::Widgets Qt6::OpenGLWidgets Qt6::Co
 target_link_libraries(qtk_example PUBLIC Qtk::qtk)
 target_include_directories(qtk_example PRIVATE "${CMAKE_CURRENT_BINARY_DIR}")
 
+# qt_generate_deploy_app_script supports Windows and OSX in QtCore >= 6.3.
+# qt_generate_deploy_app_script is supported on Linux in QtCore >= 6.5.0.
+if((Qt6_VERSION VERSION_GREATER_EQUAL "6.3.0" AND (WIN32 OR APPLE))
+    OR Qt6_VERSION VERSION_GREATER_EQUAL "6.5.0")
   install(
       TARGETS qtk_example
       COMPONENT qtk_example
@@ -94,3 +98,6 @@ qt_generate_deploy_app_script(
       NO_UNSUPPORTED_PLATFORM_ERROR
   )
   install(SCRIPT ${QTK_EXAMPLE_DEPLOY_SCRIPT} COMPONENT qtk_example)
+elseif(NOT Qtk_IS_TOP_LEVEL)
+  message(WARNING "[Qtk] Installation is only supported on Qt >=6.5.\n")
+endif()

src/app/CMakeLists.txt

@@ -37,7 +37,7 @@ qt_add_executable(qtk_gui ${QTK_GUI_SOURCES})
 target_link_libraries(qtk_gui PRIVATE qtk_plugin_library)
 
 if (QTK_GUI_SCENE)
-  target_compile_definitions(qtk_gui PUBLIC QTK_GUI_SCENE)
+  target_compile_definitions(qtk_gui PRIVATE -DQTK_GUI_SCENE)
 endif()
 
 if (WIN32)
@@ -56,6 +56,10 @@ elseif(APPLE)
   )
 endif()
 
+# qt_generate_deploy_app_script supports Windows and OSX in QtCore >= 6.3.
+# qt_generate_deploy_app_script is supported on Linux in QtCore >= 6.5.0.
+if((Qt6_VERSION VERSION_GREATER_EQUAL "6.3.0" AND (WIN32 OR APPLE))
+    OR Qt6_VERSION VERSION_GREATER_EQUAL "6.5.0")
   install(
       TARGETS qtk_gui
       COMPONENT qtk_gui
@@ -64,13 +68,13 @@ install(
       ARCHIVE DESTINATION lib
       RUNTIME DESTINATION bin
   )
-
   qt_generate_deploy_app_script(
       TARGET qtk_gui
       OUTPUT_SCRIPT QTK_DEPLOY_SCRIPT
       NO_UNSUPPORTED_PLATFORM_ERROR
   )
   install(SCRIPT ${QTK_DEPLOY_SCRIPT} COMPONENT qtk_gui)
+endif()
 
 if(WIN32)
   if(MSVC AND TARGET Qt6::qmake)

src/qtk/CMakeLists.txt

@@ -55,7 +55,7 @@ target_sources(
 )
 
 if(QTK_DEBUG)
-  target_compile_definitions(qtk PUBLIC QTK_DEBUG)
+  target_compile_definitions(qtk PUBLIC -DQTK_DEBUG)
 endif()
 
 set_target_properties(