This patch removes the hard coded temporary directory (which might not exist on the system)
and replaces it using the Perl preferred method.
--- aegis-4.24/script/aebisect.in	2008-03-14 07:19:27.000000000 +0100
+++ aegis-4.24/script/aebisect.in	2014-01-26 11:03:31.000000000 +0100
@@ -34,7 +34,8 @@
 # @configure_input@
 #
 # Configure additions?
-my $TmpDir   = "/var/tmp";
+use File::Temp qw/ tempdir /;
+my $TmpDir   = tempdir();
 my $ProgramName = "aebisect";
 
 require 5.004;
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<tr><td><span title='2018-09-04 17:25:11 +0200'>2018-09-04</span></td><td><a href='/guix/commit/tests/pki.scm?id=ca719424455465fca4b872c371daf2a46de88b33'>Switch to Guile-Gcrypt.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>