/* Generic version api */
  EXPORT const char* dwg_api_version_string (void); // ie PACKAGE_VERSION
  EXPORT int dwg_api_version (void); // ie 100*major + minor
  EXPORT int dwg_api_version_major (void); // ie LIBREDWG_VERSION_MAJOR
  EXPORT int dwg_api_version_minor (void); // ie LIBREDWG_VERSION_MINOR
  /* if PACKAGE_VERSION == release tag only, and configured with --enable-release */
  EXPORT bool dwg_api_version_is_release (void);
  EXPORT const char* dwg_api_so_version (void);