Index: src/kioslave/CMakeLists.txt
===================================================================
--- src/kioslave/CMakeLists.txt
+++ src/kioslave/CMakeLists.txt
@@ -1,8 +1,17 @@
 add_executable(kioslave kioslave.cpp)
-ecm_mark_nongui_executable(kioslave)
 
 target_link_libraries(kioslave
    KF5::KIOCore
 )
+if (APPLE)
+   target_link_libraries(kioslave "-framework CoreFoundation")
+endif ()
+
 
 install(TARGETS kioslave DESTINATION ${KDE_INSTALL_LIBEXECDIR_KF5} )
+if(APPLE)
+   # create a wrapper for the kioslave bundle-exec so it can be found via
+   # the regular, expected path.
+   configure_file(kioslave_wrapper.in ${CMAKE_CURRENT_BINARY_DIR}/kioslave @ONLY)
+   install(PROGRAMS ${CMAKE_CURRENT_BINARY_DIR}/kioslave DESTINATION ${KDE_INSTALL_LIBEXECDIR_KF5} )
+endif(APPLE)
Index: src/kioslave/kioslave.cpp
===================================================================
--- src/kioslave/kioslave.cpp
+++ src/kioslave/kioslave.cpp
@@ -46,6 +46,10 @@
 #endif
 #endif
 
+#ifdef Q_OS_MACOS
+#include <CoreFoundation/CoreFoundation.h>
+#endif
+
 #ifndef Q_OS_WIN
 /* These are to link libkio even if 'smart' linker is used */
 #include <kio/authinfo.h>
@@ -57,6 +61,20 @@
 
 int main(int argc, char **argv)
 {
+#ifdef Q_OS_MACOS
+    CFBundleRef mainBundle = CFBundleGetMainBundle();
+    if (mainBundle) {
+        // get the application's Info Dictionary. For app bundles this would live in the bundle's Info.plist,
+        // for regular executables it is obtained in another way.
+        CFMutableDictionaryRef infoDict = (CFMutableDictionaryRef) CFBundleGetInfoDictionary(mainBundle);
+        if (infoDict) {
+            // Add or set the "LSUIElement" key with/to value "1". This can simply be a CFString.
+            CFDictionarySetValue(infoDict, CFSTR("LSUIElement"), CFSTR("1"));
+            // That's it. We're now considered as an "agent" by the window server, and thus will have
+            // neither menubar nor presence in the Dock or App Switcher.
+        }
+    }
+#endif
     if (argc < 5) {
         fprintf(stderr, "Usage: kioslave <slave-lib> <protocol> <klauncher-socket> <app-socket>\n\nThis program is part of KDE.\n");
         return 1;
Index: src/kioslave/kioslave_wrapper.in
===================================================================
--- /dev/null
+++ src/kioslave/kioslave_wrapper.in
@@ -0,0 +1,3 @@
+#!/bin/sh
+
+exec "@KDE_INSTALL_LIBEXECDIR_KF5@/kioslave.app/Contents/MacOS/kioslave" "$@"