Fix #77027: tidy::getOptDoc() not available on Windows

We define the `HAVE_TIDYOPTGETDOC` macro unconditionally, since the
Windows PHP SDK ships libtidy 2009/04/06 or newer for a long time.

We do not add a regression test, since 021.phpt already tests
`tidy_get_opt_doc`, but has previously been skipped due to
unavailability of the function.

Author: cmb69

NEWS

@@ -26,6 +26,9 @@ PHP                                                                        NEWS
   . Fixed bug #76965 (INI_SCANNER_RAW doesn't strip trailing whitespace).
     (Pierrick)
 
+- Tidy:
+  . Fixed bug #77027 (tidy::getOptDoc() not available on Windows). (cmb)
+
 - XML:
   . Fixed bug #30875 (xml_parse_into_struct() does not resolve entities). (cmb)
   . Add support for getting SKIP_TAGSTART and SKIP_WHITE options. (cmb)

ext/tidy/config.w32

@@ -17,6 +17,7 @@ if (PHP_TIDY != "no") {
 
 		EXTENSION("tidy", "tidy.c");
 		AC_DEFINE('HAVE_TIDY', 1, 'Have TIDY library');
+		AC_DEFINE('HAVE_TIDYOPTGETDOC', 1, "tidy_get_opt_doc function")
 		ADD_FLAG('CFLAGS_TIDY', '/DZEND_ENABLE_STATIC_TSRMLS_CACHE=1');
 		if (!PHP_TIDY_SHARED) {
 			ADD_DEF_FILE("ext\\tidy\\php_tidy.def");