Merge pull request doxygen#11728 from peterurbanec/fix#11727

Increase maximum number of threads fix doxygen#11727

Author: doxygen

src/config.xml

@@ -881,7 +881,7 @@ Go to the <a href="commands.html">next</a> section or return to the
 ]]>
       </docs>
     </option>
-    <option type='int' id='NUM_PROC_THREADS' defval='1' minval='0' maxval='32'>
+    <option type='int' id='NUM_PROC_THREADS' defval='1' minval='0' maxval='512'>
       <docs>
 <![CDATA[
  The \c NUM_PROC_THREADS specifies the number of threads Doxygen is allowed to use during
@@ -3828,7 +3828,7 @@ where `loc1` and `loc2` can be relative or absolute paths or URLs.
 ]]>
       </docs>
     </option>
-    <option type='int' id='DOT_NUM_THREADS' defval='0' minval='0' maxval='32' depends='HAVE_DOT'>
+    <option type='int' id='DOT_NUM_THREADS' defval='0' minval='0' maxval='512' depends='HAVE_DOT'>
       <docs>
 <![CDATA[
  The \c DOT_NUM_THREADS specifies the number of \c dot invocations Doxygen is

src/configimpl.l

@@ -2031,9 +2031,9 @@ void Config::checkAndCorrect(bool quiet, const bool check)
   //------------------------
   // clip number of threads
   int dotNumThreads = Config_getInt(DOT_NUM_THREADS);
-  if (dotNumThreads>32)
+  if (dotNumThreads>512)
   {
-    dotNumThreads=32;
+    dotNumThreads=512;
   }
   else if (dotNumThreads<=0)
   {