declare_args() {
  # Location of Qt6 binaries/libraries/frameworks.
  # Likely /opt/homebrew on macOS and /usr or /usr/local on Linux
  # FIXME: We could get these by parsing `qmake -query` or `pkg-config`
  if (host_os == "mac") {
    qt_install_prefix = "/opt/homebrew/"
  } else {
    qt_install_prefix = "/usr/"
  }
}

declare_args() {
  # Location of Qt6 headers, normally set based on $qt_install_prefix
  qt_install_headers = qt_install_prefix + "include/"
  if (current_os == "mac") {
    # Location of Qt6 frameworks, normally set based on $qt_install_prefix
    qt_install_frameworks = qt_install_prefix + "Frameworks/"
  } else {
    # Location of Qt6 libraries, normally set based on $qt_install_prefix
    qt_install_lib = qt_install_prefix + "lib"
  }

  # Location of Qt6 helper programs, normally set based on $qt_install_prefix
  # Programs such as moc and rcc are expected to be in this location.
  qt_install_libexec = qt_install_prefix + "share/qt/libexec/"
}