Added notes that gcc, binutils and glibc behave badly when optimized and

thus should be left alone.


git-svn-id: http://svn.linuxfromscratch.org/LFS/trunk/BOOK@1172 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689

chapter01/changelog.xml

@@ -5,6 +5,11 @@
 
 <itemizedlist>
 
+<listitem><para>September 5th, 2001 [gerard]: Chapters 5 &amp; 6: Added
+notes to the gcc, binutils and glibc installations that these packages
+behave badly when the default optimization flags are changed and should
+be left alone.</para></listitem>
+
 <listitem><para>September 4th, 2001 [gerard]: Chapter 6-Bzip2: Added ln
 command to create /lib/libbz2.so</para></listitem>
 

chapter05/binutils-inst.xml

@@ -1,6 +1,12 @@
 <sect2>
 <title>Installation of Binutils</title>
 
+<para>This package is known to behave badly when you have changed it's default
+optimization flags (including the -march and -mcpu options). Binutils is 
+best left alone, so we recommend you unsetting CFLAGS, CXXFLAGS and other
+such variables/settings that would change the default optimization that
+it comes with.</para>
+
 <para>Install Binutils by running the following commands:</para>
 
 <para><screen><userinput>./configure --prefix=$LFS/usr --disable-nls &amp;&amp;</userinput>

chapter05/gcc-inst.xml

@@ -1,6 +1,12 @@
 <sect2>
 <title>Installation of GCC</title>
 
+<para>This package is known to behave badly when you have changed it's default
+optimization flags (including the -march and -mcpu options). GCC is best
+left alone, so we recommend you unsetting CFLAGS, CXXFLAGS and other
+such variables/settings that would change the default optimization that
+it comes with.</para>
+
 <para>Install GCC by running the following commands:</para>
 
 <para><screen><userinput>patch -Np1 -i ../gcc-&gcc-patch-version;.patch &amp;&amp;</userinput>

chapter06/binutils-inst.xml

@@ -1,5 +1,11 @@
 <sect2><title>Installation of Binutils</title>
 
+<para>This package is known to behave badly when you have changed it's
+default optimization flags (including the -march and -mcpu options). Binutils 
+is best left alone, so we recommend you unsetting CFLAGS, CXXFLAGS and other
+such variables/settings that would change the default optimization that
+it comes with.</para>
+
 <para>Install Binutils by running the following commands:</para>
 
 <para><screen><userinput>./configure --prefix=/usr --enable-shared &amp;&amp;</userinput>

chapter06/gcc-inst.xml

@@ -1,6 +1,12 @@
 <sect2>
 <title>Installation of GCC</title>
 
+<para>This package is known to behave badly when you have changed it's default
+optimization flags (including the -march and -mcpu options). GCC is best
+left alone, so we recommend you unsetting CFLAGS, CXXFLAGS and other
+such variables/settings that would change the default optimization that
+it comes with.</para>
+
 <para>Install GCC by running the following commands. These commands will build
 the C and C++ compiler. Other compilers are available within the gcc
 package. If you want to build all the other availble compilers too,

chapter06/glibc-inst.xml

@@ -6,6 +6,12 @@ glibc-&glibc-version; directory and unpack glibc-linuxthreads inside
 the glibc-&glibc-version; directory, not in /usr/src as you normally
 would do.</para>
 
+<para>This package is known to behave badly when you have changed it's default
+optimization flags (including the -march and -mcpu options). Glibc is 
+best left alone, so we recommend you unsetting CFLAGS, CXXFLAGS and other
+such variables/settings that would change the default optimization that
+it comes with.</para>
+
 <para>Install Glibc by running the following commands:</para>
 
 <para><screen><userinput>mknod -m 0666 /dev/null c 1 3 &amp;&amp;</userinput>