This patch adapts the vpnc script to newer kernel versions, see
   https://lkml.org/lkml/2011/3/24/645

diff -u a/vpnc-script.in b/vpnc-script.in
--- a/vpnc-script.in	2013-03-03 13:55:16.000000000 +0100
+++ b/vpnc-script.in	2013-03-03 13:56:11.000000000 +0100
@@ -116,7 +116,7 @@
 
 if [ -n "$IPROUTE" ]; then
 	fix_ip_get_output () {
-		sed 's/cache//;s/metric \?[0-9]\+ [0-9]\+//g;s/hoplimit [0-9]\+//g'
+		sed 's/cache//;s/metric \?[0-9]\+ [0-9]\+//g;s/hoplimit [0-9]\+//g;s/ipid 0x....//g'
 	}
 
 	set_vpngateway_route() {
it.png' alt='cgit logo'/></a></td>
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<tr><td><span title='2017-10-27 00:50:09 +0200'>2017-10-27</span></td><td><a href='/guix/commit/gnu/packages/patches/exiv2-CVE-2017-14860.patch?id=4119376d66f2016dd60e5da6b36d90894b6a74f4'>gnu: exiv2: Add upstream security fixes.</a></td><td>Marius Bakke</td></tr>
1cb7cc967d5eb55e'>packages: Remove 'origin-sha256' procedure.</a></td><td>Bruno Victal</td></tr>
<tr><td><span title='2022-12-31 14:48:46 +0100'>2022-12-31</span></td><td><a href='/guix/commit/tests/import-utils.scm?id=4046405f73da2fb9b89ca4a3ad455b56b3e826aa'>tests: import-utils: Ignore extra keyword arguments.</a></td><td>Ricardo Wurmus</td></tr>
<tr><td><span title='2022-11-18 15:44:38 +0100'>2022-11-18</span></td><td><a href='/guix/commit/tests/import-utils.scm?id=fd5e642513ea08cc9ba3b4197bcbf0b8d37ae966'>import/utils: spdx-string-&gt;license: Support '+' operator.</a></td><td>Philip McGrath</td></tr>
<tr><td><span title='2022-11-18 15:44:38 +0100'>2022-11-18</span></td><td><a href='/guix/commit/tests/import-utils.scm?id=07482dc0511350d596fdd25f7645dd6f4f91313b'>import/utils: spdx-string-&gt;license: Match case-insensitively.</a></td><td>Philip McGrath</td></tr>
<tr><td><span title='2022-10-05 23:59:48 +0200'>2022-10-05</span></td><td><a href='/guix/commit/tests/import-utils.scm?id=421a87a68a992a78127e0c2f4aa2e18c731c9e63'>tests: Add new test cases for beautify-description.</a></td><td>Ricardo Wurmus</td></tr>
<tr><td><span title='2022-09-29 22:59:48 +0200'>2022-09-29</span></td><td><a href='/guix/commit/tests/import-utils.scm?id=61bd7bf4690329a10e0a1d3fd1425a73d1823576'>import/utils: alist-&gt;package: Include properties.</a></td><td>itd</td></tr>
<tr><td><span title='2021-09-01 23:41:42 +0200'>2021-09-01</span></td><td><a href='/guix/commit/tests/import-utils.scm?id=f95bdeb93a30b89c821627aa91da4ef3afaeb5af'>import: utils: Skip not found packages.</a></td><td>Sarah Morgensen</td></tr>
<tr><td><span title='2020-12-27 12:06:49 +0100'>2020-12-27</span></td><td><a href='/guix/commit/tests/import-utils.scm?id=5aae614868b8a7e3097ae70f6024352aa5c8de21'>import/utils: alist-&gt;package: Handle SPDX license names only as fallback.</a></td><td>Ricardo Wurmus</td></tr>
<tr><td><span title='2020-12-02 22:09:23 +0100'>2020-12-02</span></td><td><a href='/guix/commit/tests/import-utils.scm?id=bea3b17739fc591b8cf6db1f8d28a6f6c9585577'>import: utils: 'recursive-import' accepts an optional version parameter.</a></td><td>Martin Becze</td></tr>
<tr><td><span title='2019-12-11 12:13:03 +0100'>2019-12-11</span></td><td><a href='/guix/commit/tests/import-utils.scm?id=70a8e13277d4a44b89dd9ee2290b98105f0235f1'>import: utils: 'recursive-import' returns a list rather than a stream.</a></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2019-12-11 12:12:58 +0100'>2019-12-11</span></td><td><a href='/guix/commit/tests/import-utils.scm?id=ddd59159004ca73c9449a27945116ff5069c3743'>import: utils: 'recursive-import' returns packages in topological order.</a></td><td>Ludovic Courtès</td></tr>