Add a note mentioning that if TCL fails to build it suggests a broken chapter 5 toolchain

git-svn-id: http://svn.linuxfromscratch.org/LFS/branches/6.1.1/BOOK@7126 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689

chapter01/changelog.xml

@@ -42,6 +42,10 @@ First a summary, then a detailed log.</para>
 </itemizedlist>
 </listitem>
 
+<listitem><para>November 5, 2005 [matt]: Add a note to the toolchain sanity
+check in chapter 5 to explain that if TCL fails to build, it's an indication of
+a broken toolchain (bug 1581).</para></listitem>
+
 <listitem><para>November 4, 2005 [matt]: Correct the instructions for running
 Module-Init-Tools' testsuite (fixes bug 1597).  Thanks to Greg Schafer, Tushar
 Teredesai and to Randy McMurchy for providing the patch.</para></listitem>

chapter05/adjusting.xml

@@ -108,7 +108,12 @@ commands</phrase>.</para>
 <para>Once all is well, clean up the test files:</para>
 
 <screen><userinput>rm -v dummy.c a.out</userinput></screen>
+
+<para>Building TCL in the next section will serve as an additional check that
+the toolchain has been built properly.  If TCL fails to build, it is an
+indication that something has gone wrong with the Binutils, GCC, or Glibc
+installation, but not with TCL itself.</para>
+
 </caution>
 
 </sect1>
-