Changeset 9829329 for chapter06

Timestamp:

11/06/2005 06:47:51 PM (19 years ago)

Author:

Matthew Burgess <matthew@…>

Branches:

10.0, 10.0-rc1, 10.1, 10.1-rc1, 11.0, 11.0-rc1, 11.0-rc2, 11.0-rc3, 11.1, 11.1-rc1, 11.2, 11.2-rc1, 11.3, 11.3-rc1, 12.0, 12.0-rc1, 12.1, 12.1-rc1, 6.3, 6.4, 6.5, 6.6, 6.7, 6.8, 7.0, 7.1, 7.2, 7.3, 7.4, 7.5, 7.5-systemd, 7.6, 7.6-systemd, 7.7, 7.7-systemd, 7.8, 7.8-systemd, 7.9, 7.9-systemd, 8.0, 8.1, 8.2, 8.3, 8.4, 9.0, 9.1, arm, bdubbs/gcc13, ml-11.0, multilib, renodr/libudev-from-systemd, s6-init, trunk, xry111/arm64, xry111/arm64-12.0, xry111/clfs-ng, xry111/lfs-next, xry111/loongarch, xry111/loongarch-12.0, xry111/loongarch-12.1, xry111/mips64el, xry111/pip3, xry111/rust-wip-20221008, xry111/update-glibc

Children:

09043c0

Parents:

a5ebf89

Message:

Remove optimization related warnings from the toolchain packages

git-svn-id: ​http://svn.linuxfromscratch.org/LFS/trunk/BOOK@7131 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689

Location:

chapter06

Files:

• binutils.xml (modified) (1 diff)
• gcc.xml (modified) (1 diff)
• glibc.xml (modified) (1 diff)
• introduction.xml (modified) (1 diff)

chapter06/binutils.xml

@@ -32 +32 @@
 <title>Installation of Binutils</title>
 
-<para>This package is known to have issues when its default
-optimization flags (including the <parameter>-march</parameter> and
-<parameter>-mcpu</parameter> options) are changed. If any environment
-variables that override default optimizations have been defined, such
-as <envar>CFLAGS</envar> and <envar>CXXFLAGS</envar>,
-unset them when building Binutils.</para>
-
 <para>Verify that the PTYs are working properly inside the chroot
 environment. Check that everything is set up correctly by performing a

chapter06/gcc.xml

@@ -32 +32 @@
 <title>Installation of GCC</title>
 
-<para>This package is known to have issues when its default
-optimization flags (including the <parameter>-march</parameter> and
-<parameter>-mcpu</parameter> options) are changed. If any environment
-variables that override default optimizations have been defined, such
-as <envar>CFLAGS</envar> and <envar>CXXFLAGS</envar>,
-unset them when building GCC.</para>
-
 <para>Apply a <command>sed</command> substitution that will suppress the
 installation of <filename class="libraryfile">libiberty.a</filename>. The

chapter06/glibc.xml

@@ -42 +42 @@
 convert from/to Unicode, therefore libiconv is not required on an LFS
 system.</para></note>
-
-<para>This package is known to have issues when its default
-optimization flags (including the <parameter>-march</parameter> and
-<parameter>-mcpu</parameter> options) are changed. If any environment
-variables that override default optimizations have been defined, such
-as <envar>CFLAGS</envar> and <envar>CXXFLAGS</envar>,
-unset them when building Glibc.</para>
 
 <para>The Glibc build system is self-contained and will install

chapter06/introduction.xml

@@ -32 +32 @@
 does compile when using optimization, there is the risk it may have
 been compiled incorrectly because of the complex interactions between
-the code and build tools.  The small potential gains achieved in using
-compiler optimizations are often outweighed by the risks. First-time
-builders of LFS are encouraged to build without custom optimizations.
-The subsequent system will still run very fast and be stable at the
-same time.</para>
+the code and build tools.  Also note that the <option>-march</option>
+and <option>-mtune</option> options may cause problems with the
+toolchain packages (Binutils, GCC and Glibc).  The small potential
+gains achieved in using compiler optimizations are often outweighed by
+the risks. First-time builders of LFS are encouraged to build without
+custom optimizations.  The subsequent system will still run very fast
+and be stable at the same time.</para>
 
 <para>The order that packages are installed in this chapter needs to