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
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<div class='path'>path: <a href='/guix/log/?id=70a17df684173cc59c19df10e249ac90e1cfb10e'>root</a>/<a href='/guix/log/gnu?id=70a17df684173cc59c19df10e249ac90e1cfb10e'>gnu</a>/<a href='/guix/log/gnu/packages?id=70a17df684173cc59c19df10e249ac90e1cfb10e'>packages</a>/<a href='/guix/log/gnu/packages/file.scm?id=70a17df684173cc59c19df10e249ac90e1cfb10e'>file.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/packages/file.scm?id=70a17df684173cc59c19df10e249ac90e1cfb10e&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2020-01-14 18:31:35 +0100'>2020-01-14</span></td><td><a href='/guix/commit/gnu/packages/file.scm?id=488c30437ca12ea6bf487180c1d28df381413e98'>gnu: file: Update to 5.38.</a><span class='msg-avail'>...</span></td><td>Marius Bakke</td></tr>
<tr><td><span title='2019-10-28 12:47:59 -0400'>2019-10-28</span></td><td><a href='/guix/commit/gnu/packages/file.scm?id=1051facc8108110e582f2c0a9d8a5fd38b1486b6'>gnu: file: Update to 5.37 [fixes CVE-2019-18218].</a><span class='msg-avail'>...</span></td><td>Leo Famulari</td></tr>
<tr><td><span title='2019-05-01 23:11:41 +0200'>2019-05-01</span></td><td><a href='/guix/commit/gnu/packages/file.scm?id=3b458d5462e6bbd852c2dc5c6670d5655abf53f5'>Merge branch 'master' into core-updates</a></td><td>Marius Bakke</td></tr>
<tr><td><span title='2019-03-30 15:19:32 +0100'>2019-03-30</span></td><td><a href='/guix/commit/gnu/packages/file.scm?id=528ea990c3a815cb4b0ded913ea22cdc778839bd'>gnu: Use 'this-package' as a native input instead of 'self-native-input?'.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>