rxvt-unicode: Add a note.

git-svn-id: svn://svn.linuxfromscratch.org/BLFS/trunk/BOOK@23263 af4574ff-66df-0310-9fd7-8a98e5e911e0

introduction/welcome/changelog.xml

@@ -44,6 +44,11 @@
     <listitem>
       <para>June 7th, 2020</para>
       <itemizedlist>
+        <listitem>
+          <para>[ken] - Add a note to rxvt-unicode that it ignores SIGFPE (a perl
+          issue), this causes some tests to fail if using it to build a new LFS
+          system.</para>
+        </listitem>
         <listitem>
           <para>[bdubbs] - Update to polkit-cf22af32. Allows 
           use of js68.</para>

xsoft/other/rxvt-unicode.xml

@@ -37,6 +37,18 @@
 
     &lfs91_checked;
 
+    <note>
+      <para>
+        <!-- https://github.com/Perl/perl5/issues/12349 -->
+        Please be aware that <application>rxvt-unicode</application> is
+        affected by an issue in <application>perl</application> where
+        the SIGFPE handler is set to SIG_IGN (i.e. the signal is ignored).
+        If you are building an LFS system from within <command>urxvt</command>
+        and running the testsuites, tests in <application>bash</application> and
+        <application>check</application> which test raising this signal will fail.
+      </para>
+    </note>
+
     <bridgehead renderas="sect3">Package Information</bridgehead>
     <itemizedlist spacing="compact">
       <listitem>