diff -up konqueror-19.12.1/CMakeLists.txt.webengine_optional konqueror-19.12.1/CMakeLists.txt
--- konqueror-19.12.1/CMakeLists.txt.webengine_optional	2020-01-08 09:09:58.121737573 -0600
+++ konqueror-19.12.1/CMakeLists.txt	2020-01-08 09:10:16.373179052 -0600
@@ -23,7 +23,8 @@ include(CMakePackageConfigHelpers)
 set(KONQUEROR_LIB_VERSION "5.0.97")
 set(KONQUEROR_VERSION "${KONQUEROR_LIB_VERSION}")
 
-find_package(Qt5 ${QT_MIN_VERSION} REQUIRED COMPONENTS Core Widgets WebEngineWidgets)
+find_package(Qt5 ${QT_MIN_VERSION} REQUIRED COMPONENTS Core Widgets)
+find_package(Qt5WebEngineWidgets)
 find_package(KF5 ${KF5_MIN_VERSION} REQUIRED COMPONENTS Parts KCMUtils KHtml Archive Crash WindowSystem Init IconThemes DBusAddons)
 find_package(KF5 ${KF5_MIN_VERSION} REQUIRED COMPONENTS KDELibs4Support)
 
@@ -55,7 +56,9 @@ add_subdirectory( client )
 if(BUILD_TESTING)
     add_subdirectory( autotests )
 endif()
+if (Qt5WebEngineWidgets_FOUND)
 add_subdirectory( webenginepart )
+endif()

 add_subdirectory( about )
 add_subdirectory( pics )