Don't auto-detect PipeWire

--- CMakeLists.txt.orig	2024-05-31 12:34:07 UTC
+++ CMakeLists.txt
@@ -47,7 +47,9 @@ find_package(KDED CONFIG REQUIRED)
                     OPTIONAL_COMPONENTS DocTools)
 
 find_package(KDED CONFIG REQUIRED)
-find_package(KPipeWire CONFIG)
+if(NOT DISABLE_PIPEWIRE)
+    find_package(KPipeWire CONFIG)
+endif()
 
 find_package(KF5NetworkManagerQt ${KF5_MIN_VERSION})
 set_package_properties(KF5NetworkManagerQt PROPERTIES DESCRIPTION "Qt wrapper for NetworkManager API"
@@ -152,7 +154,9 @@ endif()
     set(HAVE_XFIXES 0)
 endif()
 
-pkg_check_modules(PipeWire IMPORTED_TARGET libpipewire-0.3)
+if(NOT DISABLE_PIPEWIRE)
+    pkg_check_modules(PipeWire IMPORTED_TARGET libpipewire-0.3)
+endif()
 add_feature_info(PipeWire PipeWire_FOUND "Required for Wayland screencasting")
 
 if(PipeWire_FOUND)