Synchronized with LFS-SVN-20140611.

git-svn-id: http://svn.linuxfromscratch.org/LFS/branches/systemd/BOOK@10576 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689

1 files changed, 6 insertions, 10 deletions

diff --git a/chapter05/gcc-pass2.xml b/chapter05/gcc-pass2.xml
index ec9354e18..85cc1aff9 100644
--- a/chapter05/gcc-pass2.xml
+++ b/chapter05/gcc-pass2.xml
@@ -57,17 +57,15 @@
 
 <screen><userinput remap="pre">cat gcc/limitx.h gcc/glimits.h gcc/limity.h &gt; \
   `dirname $($LFS_TGT-gcc -print-libgcc-file-name)`/include-fixed/limits.h</userinput></screen>
-
-    <para>For x86 machines, a bootstrap build of GCC uses the
-    <option>-fomit-frame-pointer</option> compiler flag.  Non-bootstrap builds
-    omit this flag by default, and the goal should be to produce a compiler
-    that is exactly the same as if it were bootstrapped.  Apply the following
-    <command>sed</command> command to force the build to use the flag:</para>
+<!--
+    <para>For x86 machines, the limited number of registers is a bottleneck
+    for the system.  Free one up by not using a frame pointer that is not
+    needed:</para>
 
 <screen><userinput remap="pre">case `uname -m` in
   i?86) sed -i 's/^T_CFLAGS =$/&amp; -fomit-frame-pointer/' gcc/Makefile.in ;;
 esac</userinput></screen>
-
+-->
     <para>Once again, change the location of GCC's default dynamic linker to
     use the one installed in <filename
     class="directory">/tools</filename>.</para>
@@ -123,9 +121,7 @@ RANLIB=$LFS_TGT-ranlib                               \
     --disable-libstdcxx-pch                          \
     --disable-multilib                               \
     --disable-bootstrap                              \
-    --disable-libgomp                                \
-    --with-mpfr-include=$(pwd)/../gcc-&gcc-version;/mpfr/src \
-    --with-mpfr-lib=$(pwd)/mpfr/src/.libs</userinput></screen>
+    --disable-libgomp</userinput></screen>
 
     <variablelist>
       <title>The meaning of the new configure options:</title>