Basic Windows NSIS installer

cmake/installer.cmake

@@ -15,3 +15,15 @@ foreach(TARGET IN LISTS INSTALL_TARGETS)
         BUNDLE DESTINATION ${DESTINATION}
         ARCHIVE EXCLUDE_FROM_ALL)
 endforeach()
+
+if(NOT CPACK_GENERATOR)
+    return()
+endif()
+
+set(CPACK_PACKAGE_NAME ${PROJECT_NAME})
+set(CPACK_PACKAGE_INSTALL_DIRECTORY ${PROJECT_NAME})
+set(CPACK_PACKAGE_EXECUTABLES ${CLIENT_NAME} ${PROJECT_NAME})
+set(CPACK_PACKAGE_FILE_NAME ${PROJECT_NAME}-${PRODUCT_VERSION})
+set(CPACK_RESOURCE_FILE_LICENSE ${CMAKE_SOURCE_DIR}/COPYING.txt)
+
+include(CPack)