updated fileutils patch explanation

git-svn-id: http://svn.linuxfromscratch.org/LFS/trunk/BOOK@2422 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689

chapter05/fileutils-inst.xml

@@ -3,12 +3,13 @@
 <sect2>
 <title>Installation of Fileutils</title>
 
-<para>The programs from a statically linked Fileutils package may cause
-segmentation faults on certain systems, if your distribution has
-Glibc-2.2.3 installed. It seems to happen mostly on machines
-powered by an AMD CPU, but there is a case or two where an Intel system
-is affected as well. If your system falls in this category, apply the
-patch.</para>
+<para>There is a documented (see 
+<ulink url="http://mail.gnu.org/pipermail/bug-glibc/2001-May/003149.html"/>)
+bug with the atexit() function in glibc-2.2.3 when it is compiled with
+gcc-2.95.3. This bug only occurs on some systems (primarily AMD, but not
+exclusively). This bug causes segmentation faults in fileutils-4.1 when it
+is compiled statically. This patch causes on_exit() to be called instead of
+atexit().</para>
 
 <para>Note that in some cases using this patch will result in not being
 able to compile this package at all, even when your system has an AMD CPU

chapter06/ed-inst.xml

@@ -10,10 +10,10 @@ days.</para></note>
 
 <para>Ed uses mktemp to create temporary files in <filename
 class="directory">/tmp</filename>, but this function has a security
-vulnerability (see section on Temporary Files in
-<ulink url="http://en.tldp.org/HOWTO/Secure-Programs-HOWTO/avoid-race.html"/>).
-This patch makes Ed use mkstemp instead, which is the recommended way to
-create temporary files.</para>
+vulnerability (see section on Temporary Files in <ulink
+url="http://en.tldp.org/HOWTO/Secure-Programs-HOWTO/avoid-race.html"/>). This
+patch makes Ed use mkstemp instead, which is the recommended way to create
+temporary files.</para>
 
 <para>Apply the patch:</para>
 
@@ -32,11 +32,10 @@ create temporary files.</para>
 <para><screen><userinput>make install</userinput></screen></para>
 
 <para>We need to move the Ed binaries to the <filename
-class="directory">/bin</filename> directory so they may be used in
-the event that the <filename class="directory">/usr</filename>
-partition is unavailable.</para>
+class="directory">/bin</filename> directory so they may be used in the event
+that the <filename class="directory">/usr</filename> partition is
+unavailable.</para>
 
 <para><screen><userinput>mv /usr/bin/{ed,red} /bin</userinput></screen></para>
 
 </sect2>
-