cmake: use per-target components for bitcoin-qt and bitcoin-gui

This makes the usage consistent with the next commit, which will add a
per-target component for each binary.

Author: theuni

cmake/module/Maintenance.cmake

@@ -103,7 +103,7 @@ function(add_macos_deploy_target)
 
     add_custom_command(
       OUTPUT ${PROJECT_BINARY_DIR}/${macos_app}/Contents/MacOS/Bitcoin-Qt
-      COMMAND ${CMAKE_COMMAND} --install ${PROJECT_BINARY_DIR} --config $<CONFIG> --component GUI --prefix ${macos_app}/Contents/MacOS --strip
+      COMMAND ${CMAKE_COMMAND} --install ${PROJECT_BINARY_DIR} --config $<CONFIG> --component bitcoin-qt --prefix ${macos_app}/Contents/MacOS --strip
       COMMAND ${CMAKE_COMMAND} -E rename ${macos_app}/Contents/MacOS/bin/$<TARGET_FILE_NAME:bitcoin-qt> ${macos_app}/Contents/MacOS/Bitcoin-Qt
       COMMAND ${CMAKE_COMMAND} -E rm -rf ${macos_app}/Contents/MacOS/bin
       VERBATIM

src/qt/CMakeLists.txt

@@ -236,7 +236,10 @@ target_link_libraries(bitcoin-qt
 )
 
 import_plugins(bitcoin-qt)
-set(installable_targets bitcoin-qt)
+install(TARGETS bitcoin-qt
+  RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
+  COMPONENT bitcoin-qt
+)
 if(WIN32)
   set_target_properties(bitcoin-qt PROPERTIES WIN32_EXECUTABLE TRUE)
 endif()
@@ -253,17 +256,15 @@ if(WITH_MULTIPROCESS)
     bitcoin_ipc
   )
   import_plugins(bitcoin-gui)
-  list(APPEND installable_targets bitcoin-gui)
+  install(TARGETS bitcoin-gui
+    RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
+    COMPONENT bitcoin-gui
+  )
   if(WIN32)
     set_target_properties(bitcoin-gui PROPERTIES WIN32_EXECUTABLE TRUE)
   endif()
 endif()
 
-install(TARGETS ${installable_targets}
-  RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
-  COMPONENT GUI
-)
-
 if(BUILD_GUI_TESTS)
   add_subdirectory(test)
 endif()