https://github.com/cmusphinx/sphinxbase/commit/6989c52a3fb9473fd61326e548440fff887525c2

commit 6989c52a3fb9473fd61326e548440fff887525c2
Author: Michel Zou <xantares09@hotmail.com>
Date:   Thu Feb 6 07:02:06 2020 +0100

    Fix doxy2swig.py IndexError: list index out of range

diff --git a/doc/doxy2swig.py b/doc/doxy2swig.py
index 5589b0d..a01c4b1 100644
--- a/doc/doxy2swig.py
+++ b/doc/doxy2swig.py
@@ -299,7 +299,10 @@ class Doxy2SWIG:
             name = first['name'].firstChild.data
 
             for n in node.getElementsByTagName('param'):
-              arg_type = n.getElementsByTagName('type')[0]
+              elts = n.getElementsByTagName('type')
+              if len(elts) == 0:
+                  continue
+              arg_type = elts[0]
               ref = self.get_specific_nodes(arg_type, ('ref'))
               if 'ref' in ref:
                 type_name = ref['ref'].firstChild.data
 class='sub'>Wojtek's customized Guix</td><td class='sub right'></td></tr></table>
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<div class='path'>path: <a href='/guix/log/?id=4cf4bd1ebe1c4b206ffd686058acd69261672536'>root</a>/<a href='/guix/log/gnu?id=4cf4bd1ebe1c4b206ffd686058acd69261672536'>gnu</a>/<a href='/guix/log/gnu/system?id=4cf4bd1ebe1c4b206ffd686058acd69261672536'>system</a>/<a href='/guix/log/gnu/system/setuid.scm?id=4cf4bd1ebe1c4b206ffd686058acd69261672536'>setuid.scm</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/guix/log/gnu/system/setuid.scm?id=4cf4bd1ebe1c4b206ffd686058acd69261672536&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2021-07-29 13:09:48 -0400'>2021-07-29</span></td><td><a href='/guix/commit/gnu/system/setuid.scm?id=45235e67e4aeac96ad8d60265bef054990aeb425'>system: Add (gnu system setuid).</a><span class='msg-avail'>...<span class='msg-tooltip'>I flubbed and somehow when including the patch series, this got dropped.
Oops... should fix things again.

* gnu/system/setuid.scm: New file.
</span></span></td><td>Christopher Lemmer Webber</td></tr>