Fix Qt5::WindowsIntegrationPlugin being included on non-windows platforms

hecl-gui/CMakeLists.txt

@@ -4,23 +4,23 @@ set(CMAKE_INCLUDE_CURRENT_DIR ON)
 set(CMAKE_AUTOMOC ON)
 set(CMAKE_AUTOUIC ON)
 
-if(APPLE AND CMAKE_SYSTEM_PROCESSOR STREQUAL x86_64)
+if (APPLE AND CMAKE_SYSTEM_PROCESSOR STREQUAL x86_64)
     set(QT_HOMEBREW_PATH /usr/local/opt/qt)
-elseif(APPLE AND CMAKE_SYSTEM_PROCESSOR STREQUAL arm64)
+elseif (APPLE AND CMAKE_SYSTEM_PROCESSOR STREQUAL arm64)
     set(QT_HOMEBREW_PATH /opt/homebrew/opt/qt)
-else()
+else ()
     set(QT_HOMEBREW_PATH "")
-endif()
+endif ()
 
 find_package(Qt6Widgets QUIET PATHS ${QT_HOMEBREW_PATH})
-if(Qt6Widgets_FOUND)
+if (Qt6Widgets_FOUND)
     find_package(Qt6 COMPONENTS Core5Compat Network Widgets Xml Gui REQUIRED PATHS ${QT_HOMEBREW_PATH})
     set(QUAZIP_QT_MAJOR_VERSION 6 CACHE STRING "")
-else()
+else ()
     find_package(Qt5Widgets REQUIRED PATHS ${QT_HOMEBREW_PATH})
     find_package(Qt5 COMPONENTS Network Widgets Xml Gui REQUIRED PATHS ${QT_HOMEBREW_PATH})
     set(QUAZIP_QT_MAJOR_VERSION 5 CACHE STRING "")
-endif()
+endif ()
 
 set(BUILD_SHARED_LIBS OFF CACHE BOOL "")
 set(QUAZIP_INSTALL OFF CACHE BOOL "")
@@ -58,7 +58,7 @@ add_executable(hecl-gui WIN32 MACOSX_BUNDLE
         main.cpp
 
         ${QUAZIP_SRCS}
-)
+        )
 
 target_compile_definitions(hecl-gui PRIVATE
         # Disable implicit conversions from ASCII to QString.
@@ -79,9 +79,9 @@ target_compile_definitions(hecl-gui PRIVATE
 
         # Allows for more efficient string concatenation, resulting in less temporaries.
         -DQT_USE_QSTRINGBUILDER
-)
+        )
 
-if(Qt6Widgets_FOUND)
+if (Qt6Widgets_FOUND)
     set(Qt_LIBS
             Qt6::Core
             Qt6::Core5Compat
@@ -89,26 +89,33 @@ if(Qt6Widgets_FOUND)
             Qt6::Network
             Qt6::Widgets
             Qt6::Xml)
-else()
+    set(QT5_WINDOWS_INTEGRATION_PLUGIN "")
+else ()
     set(Qt_LIBS
             Qt5::Core
             Qt5::Gui
             Qt5::Network
             Qt5::Widgets
-          Qt5::Xml
+            Qt5::Xml)
+
+    if (WIN32)
+        set(QT5_WINDOWS_INTEGRATION_PLUGIN
                 Qt5::WindowsIntegrationPlugin)
-endif()
+    else ()
+        set(QT5_WINDOWS_INTEGRATION_PLUGIN "")
+    endif ()
+endif ()
 target_link_libraries(hecl-gui PRIVATE
         ${Qt_LIBS}
         hecl-light
         zeus
         QuaZip::QuaZip
-)
+        ${QT5_WINDOWS_INTEGRATION_PLUGIN})
 
 target_include_directories(hecl-gui PRIVATE quazip/quazip)
 target_compile_definitions(hecl-gui PRIVATE QUAZIP_STATIC=1)
 
-if(APPLE)
+if (APPLE)
     target_sources(hecl-gui PRIVATE
             MacOSSystemVersion.hpp
             MacOSSystemVersion.mm
@@ -118,39 +125,39 @@ if(APPLE)
             )
     find_library(FOUNDATION_LIBRARY Foundation)
     target_link_libraries(hecl-gui PRIVATE ${FOUNDATION_LIBRARY})
-elseif("${CMAKE_SYSTEM_NAME}" STREQUAL "Linux")
+elseif ("${CMAKE_SYSTEM_NAME}" STREQUAL "Linux")
     target_link_libraries(hecl-gui PRIVATE
             dl
             pthread
             )
-endif()
+endif ()
 
-if(WIN32)
+if (WIN32)
     target_sources(hecl-gui PRIVATE
             platforms/win/hecl-gui.manifest
             platforms/win/hecl-gui.rc
             )
     target_link_libraries(hecl-gui PRIVATE
             Version)
-elseif(APPLE)
+elseif (APPLE)
     target_sources(hecl-gui PRIVATE platforms/mac/mainicon.icns)
     set_source_files_properties(platforms/mac/mainicon.icns PROPERTIES
             MACOSX_PACKAGE_LOCATION Resources
             )
-endif()
+endif ()
 
 add_subdirectory(platforms/freedesktop)
 declare_qticon_target()
 target_sources(hecl-gui PRIVATE mainicon_qt.cpp)
 
-if(COMMAND add_sanitizers)
+if (COMMAND add_sanitizers)
     add_sanitizers(hecl-gui)
-endif()
+endif ()
 
 if (NOT MSVC)
     target_compile_options(hecl-gui PRIVATE -Wno-misleading-indentation)
-endif()
+endif ()
 
 set_target_properties(hecl-gui PROPERTIES
         MACOSX_BUNDLE_INFO_PLIST "${CMAKE_CURRENT_SOURCE_DIR}/platforms/mac/Info.plist"
-)
+        )