qt-everywhere-src-5.15.1/qtbase/mkspecs/macx-ios-clang/features/default_post.prf

load(default_post)

!xcodebuild:equals(TEMPLATE, app):!isEmpty(QMAKE_INFO_PLIST) {
     # Only link in photo library support if Info.plist contains
     # NSPhotoLibraryUsageDescription. Otherwise it will be rejected from AppStore.
     plist_path = $$absolute_path($$QMAKE_INFO_PLIST, $$_PRO_FILE_PWD_)
          system("/usr/libexec/PlistBuddy -c 'Print NSPhotoLibraryUsageDescription' $$system_quote($$plist_path) &>/dev/null"): \
                  QTPLUGIN += qiosnsphotolibrarysupport
}