APR_OPTIONAL_FN_TYPE   21 modules/cache/cache_storage.c extern APR_OPTIONAL_FN_TYPE(ap_cache_generate_key) *cache_generate_key;
APR_OPTIONAL_FN_TYPE   22 modules/cache/mod_cache.c APR_OPTIONAL_FN_TYPE(ap_cache_generate_key) *cache_generate_key;
APR_OPTIONAL_FN_TYPE  449 modules/filters/mod_include.c static APR_OPTIONAL_FN_TYPE(ap_register_include_handler) *ssi_pfn_register;
APR_OPTIONAL_FN_TYPE   60 modules/generators/mod_cgi.c static APR_OPTIONAL_FN_TYPE(ap_register_include_handler) *cgi_pfn_reg_with_ssi;
APR_OPTIONAL_FN_TYPE   26 modules/test/mod_optional_fn_import.c static APR_OPTIONAL_FN_TYPE(TestOptionalFn) *pfn;
APR_OPTIONAL_FN_TYPE  876 server/core.c  static APR_OPTIONAL_FN_TYPE(ap_ident_lookup) *ident_lookup;
APR_OPTIONAL_FN_TYPE 3771 server/core.c  APR_OPTIONAL_FN_TYPE(ap_logio_add_bytes_out) *logio_add_bytes_out;
APR_OPTIONAL_FN_TYPE  533 server/core_filters.c extern APR_OPTIONAL_FN_TYPE(ap_logio_add_bytes_out) *logio_add_bytes_out;
APR_OPTIONAL_FN_TYPE   42 srclib/apr-util/include/apr_optional.h #define APR_OPTIONAL_FN_TYPE(name) apr_OFN_##name##_t