The METIS interface from Scotch may segfault if passed NULL to indicate a
default parameter, so use the older calling style.

--- a/SRC/get_perm_c.c	2014-05-16 23:38:30.070835316 -0500
+++ b/SRC/get_perm_c.c	2014-05-16 23:39:04.582836211 -0500
@@ -70,11 +70,13 @@
 #else
 
     /* Earlier version 3.x.x */
-    /* METIS_NodeND(&nm, b_colptr, b_rowind, &numflag, metis_options,
-       perm, iperm);*/
+    METIS_NodeND(&nm, b_colptr, b_rowind, &numflag, metis_options,
+                 perm, iperm);
 
     /* Latest version 4.x.x */
+#if 0
     METIS_NodeND(&nm, b_colptr, b_rowind, NULL, NULL, perm, iperm);
+#endif
 
     /*check_perm_dist("metis perm",  n, perm);*/
 #endif
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<tr><td><span title='2018-06-10 16:00:45 +0800'>2018-06-10</span></td><td><a href='/guix/commit/gnu/packages/kerberos.scm?id=09b21b77ccff2603a8145a2eace1e2162db2adc6'>gnu: heimdal: Update to 7.5.0.</a><span class='msg-avail'>...</span></td><td>Alex Vong</td></tr>
<tr><td><span title='2018-03-16 09:08:31 -0400'>2018-03-16</span></td><td><a href='/guix/commit/gnu/packages/kerberos.scm?id=6cbee49d6668eb7fd738080666f66febfce8c7e8'>gnu: All snippets report errors using exceptions, else return #t.</a><span class='msg-avail'>...</span></td><td>Mark H Weaver</td></tr>
<tr><td><span title='2017-12-13 08:01:52 +0100'>2017-12-13</span></td><td><a href='/guix/commit/gnu/packages/kerberos.scm?id=6ac46bfa411242140a2f269df74b30b565e4b5ec'>gnu: mit-krb5: Update to 1.16.</a><span class='msg-avail'>...</span></td><td>Marius Bakke</td></tr>
<tr><td><span title='2017-10-22 20:18:22 +0200'>2017-10-22</span></td><td><a href='/guix/commit/gnu/packages/kerberos.scm?id=cbbd0148e82b20a9ca9947a371bb5290ea8a6959'>gnu: mit-krb5: Remove graft for 1.15.2.</a><span class='msg-avail'>...</span></td><td>Marius Bakke</td></tr>
<tr><td><span title='2017-10-09 13:30:01 -0400'>2017-10-09</span></td><td><a href='/guix/commit/gnu/packages/kerberos.scm?id=719f353405886822676da20b873e5fd452a1bc3b'>gnu: mit-krb5: Replace with 1.15.2 [fixes CVE-2017-{11368,11462}].</a><span class='msg-avail'>...</span></td><td>Leo Famulari</td></tr>
<tr><td><span title='2017-07-23 03:42:12 -0400'>2017-07-23</span></td><td><a href='/guix/commit/gnu/packages/kerberos.scm?id=6c1a317e29c45e85e3a0e050612cdefe470b100c'>Merge branch 'master' into core-updates</a></td><td>Leo Famulari</td></tr>
<tr><td><span title='2017-07-20 15:33:53 -0400'>2017-07-20</span></td><td><a href='/guix/commit/gnu/packages/kerberos.scm?id=81c35029d4ee4fa7cd517998844229a514b35531'>gnu: heimdal: Fix CVE-2017-{6594,11103}.</a><span class='msg-avail'>...</span></td><td>Alex Vong</td></tr>