Second CMake run fails with "links to PkgConfig::BLUEZ but the target was not found"

CMake Error at qtbase/cmake/QtTargetHelpers.cmake:184 (target_link_libraries):
  Target "sdpscanner" links to:

    PkgConfig::BLUEZ

  but the target was not found.  Possible reasons include:

    * There is a typo in the target name.
    * A find_package call is missing for an IMPORTED target.
    * An ALIAS target is missing.

Call Stack (most recent call first):
  qtbase/cmake/QtExecutableHelpers.cmake:113 (qt_internal_extend_target)
  qtbase/cmake/QtAppHelpers.cmake:40 (qt_internal_add_executable)
  qtconnectivity/src/tools/sdpscanner/CMakeLists.txt:12 (qt_internal_add_app)

cmake \
    $srcdir \
    -GNinja \
    -DBUILD_TESTING=ON \
    -DBUILD_WITH_PCH=OFF \
    -DBUILD_qtwebengine=OFF \
    -DBUILD_qtwebview=OFF \
    -DCMAKE_BUILD_TYPE=Custom \
    -DCMAKE_CXX_COMPILER=`which g++` \
    -DCMAKE_CXX_FLAGS='-O3 -maes -fdiagnostics-color=always' \
    -DCMAKE_C_COMPILER=`which gcc` \
    -DCMAKE_C_FLAGS='-O3 -maes -fdiagnostics-color=always' \
    -DCMAKE_EXE_LINKER_FLAGS='-flto=auto' \
    -DCMAKE_INSTALL_PREFIX=$HOME/obj/qt/installed \
    -DCMAKE_MODULE_LINKER_FLAGS='-Wl,-O1 -Wl,--as-needed -flto=auto' \
    -DCMAKE_SHARED_LINKER_FLAGS='-Wl,-O1 -Wl,--as-needed -flto=auto' \
    -DFEATURE_dbus_linked=OFF \
    -DFEATURE_developer_build=ON \
    -DFEATURE_journald=ON \
    -DFEATURE_libproxy=ON \
    -DFEATURE_mimetype_database=OFF \
    -DFEATURE_no_direct_extern_access=ON \
    -DFEATURE_openssl_linked=ON \
    -DFEATURE_optimize_debug=OFF \
    -DFEATURE_reduce_relocations=ON \
    -DFEATURE_sctp=ON \
    -DFEATURE_system_sqlite=ON \
    -DINSTALL_ARCHDATADIR=lib64/qt6 \
    -DINSTALL_DATADIR=share/qt6 \
    -DINSTALL_LIBDIR=lib64 \
    -DINSTALL_LIBEXECDIR=libexec \
    -DINSTALL_MKSPECSDIR=lib64/qt6/mkspecs \
    -DINSTALL_SYSCONFDIR=/etc/xdg \
    -DQT_BUILD_ARCH='custom' \
    -DQT_BUILD_EXAMPLES_BY_DEFAULT=OFF \
    -DQT_BUILD_TESTS_BY_DEFAULT=OFF \
    -DQT_LIBINFIX=.t \
    -DQT_QMAKE_TARGET_MKSPEC=linux-g++-optimised \
    -DQT_SKIP_DOCKER_COMPOSE=ON