Rename qwt_setup.cmake file to QwtConfig.cmake. Some simplifying.

CMakeLists.txt

@@ -20,7 +20,7 @@ endif()
 find_package(Qt6 REQUIRED COMPONENTS Widgets Core Test)
 qt_standard_project_setup()
 
-include(qwt_setup.cmake)
+include(QwtConfig.cmake)
 
 include(GNUInstallDirs)
 include(CMakePackageConfigHelpers)

QwtConfig.cmake

@@ -0,0 +1,33 @@
+if(MSVC)
+    set(QWT_BUILD_COMMAND "nmake")
+else()
+    set(QWT_BUILD_COMMAND ${CMAKE_MAKE_PROGRAM})
+endif()
+
+set(PATCH_MARKER "${CMAKE_CURRENT_BINARY_DIR}/qwt_patch_applied.txt")
+if (NOT EXISTS "${PATCH_MARKER}")
+    set(QWT_PATCH_FILE ${CMAKE_CURRENT_SOURCE_DIR}/qwt.patch)
+    message(STATUS "Using QWT_PATCH_FILE=${QWT_PATCH_FILE}")
+    file(TOUCH ${PATCH_MARKER})
+else()
+    set(QWT_PATCH_FILE ${PATCH_MARKER})
+    message(STATUS "Qwt patch already applied. Using empty file as QWT_PATCH_FILE=${PATCH_MARKER}")
+endif()
+
+configure_file(CMakeLists.txt.qwt qwt/CMakeLists.txt)
+execute_process(COMMAND ${CMAKE_COMMAND} -G "${CMAKE_GENERATOR}" . WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/qwt)
+execute_process(COMMAND ${CMAKE_COMMAND} --build . WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/qwt)
+
+file(MAKE_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/qwt/install)
+file(COPY ${CMAKE_CURRENT_BINARY_DIR}/qwt/qwt/src/qwt-build/lib DESTINATION ${CMAKE_CURRENT_BINARY_DIR}/qwt/install)
+file(MAKE_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/qwt/install/include)
+file(GLOB QWT_HEADERS "${CMAKE_CURRENT_BINARY_DIR}/qwt/qwt/src/qwt/src/*.h")
+file(COPY ${QWT_HEADERS} DESTINATION ${CMAKE_CURRENT_BINARY_DIR}/qwt/install/include)
+set(QWT_INCLUDE_PATH ${CMAKE_CURRENT_BINARY_DIR}/qwt/install/include)
+set(QWT_BINARY_PATH ${CMAKE_CURRENT_BINARY_DIR}/qwt/install/lib)
+
+message(STATUS "Using QWT_INCLUDE_PATH ${QWT_INCLUDE_PATH}")
+message(STATUS "Using QWT_BINARY_PATH ${QWT_BINARY_PATH}")
+
+include_directories(${QWT_INCLUDE_PATH})
+link_directories(${QWT_BINARY_PATH})