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='2019-12-11 23:21:55 +0100'>2019-12-11</span></td><td><a href='/guix/commit/gnu/packages/pcre.scm?id=f6943db7d39a060742b820e2f2f215b0bdeca690'>gnu: pcre2: Do not build static libraries.</a><span class='msg-avail'>...</span></td><td>Marius Bakke</td></tr>
<tr><td><span title='2019-12-11 23:21:55 +0100'>2019-12-11</span></td><td><a href='/guix/commit/gnu/packages/pcre.scm?id=eccd2c14d6b42142e85ed517e8cfa81a73b6bd88'>gnu: pcre2: Update to 10.34.</a><span class='msg-avail'>...</span></td><td>Marius Bakke</td></tr>
<tr><td><span title='2019-08-13 20:42:06 +0200'>2019-08-13</span></td><td><a href='/guix/commit/gnu/packages/pcre.scm?id=462ad9f56b9665b8d22960acee73ad91f1052c9c'>Merge branch 'master' into core-updates</a></td><td>Marius Bakke</td></tr>
<tr><td><span title='2019-08-04 13:49:45 +0200'>2019-08-04</span></td><td><a href='/guix/commit/gnu/packages/pcre.scm?id=a33925d122c99eafb6e1e53ab1c122d7245d8a78'>gnu: Remove pcre2/fixed.</a><span class='msg-avail'>...</span></td><td>Marius Bakke</td></tr>
<tr><td><span title='2019-08-02 01:49:47 +0200'>2019-08-02</span></td><td><a href='/guix/commit/gnu/packages/pcre.scm?id=951fd8572af1bd00064d5c0ae59c2927ec1b6ba5'>gnu: pcre@2: Fix run-time crash [security fix].</a><span class='msg-avail'>...</span></td><td>Tobias Geerinckx-Rice</td></tr>
<tr><td><span title='2019-05-25 00:25:15 +0200'>2019-05-25</span></td><td><a href='/guix/commit/gnu/packages/pcre.scm?id=57df83e07d4b5e78d9a54c1a88d05b4a9ed65714'>Merge branch 'staging' into core-updates</a></td><td>Marius Bakke</td></tr>
<tr><td><span title='2019-05-04 16:53:49 +0200'>2019-05-04</span></td><td><a href='/guix/commit/gnu/packages/pcre.scm?id=9adae0a0176caf38519f3b3e30b7855fbc70c548'>gnu: pcre2: Update to 10.33.</a><span class='msg-avail'>...</span></td><td>Marius Bakke</td></tr>