From 7a4de3f6cf775fcafb05764e17cc1f78471d078c Mon Sep 17 00:00:00 2001
From: P. J. McDermott <pjm@nac.net>
Date: Mon, 02 Jan 2012 01:05:45 -0500
Subject: Add more notes to old bootstrap builder procedure.

NOTE: This procedure DOES NOT WORK.  I tried to avoid some ugly patches
and build system modifications that LFS uses by doing a sysroot build.
I messed up by not configuring GNU Binutils for a sysroot setup.  But
this procedure is still kind of ugly anyway, so we'll be following a new
one based on Cross Linux From Scratch - Sysroot.
---
(limited to 'bootstrap-system-build-procedure.txt')

diff --git a/bootstrap-system-build-procedure.txt b/bootstrap-system-build-procedure.txt
index 0fdfef8..8e53991 100644
--- a/bootstrap-system-build-procedure.txt
+++ b/bootstrap-system-build-procedure.txt
@@ -161,3 +161,28 @@ Cross-compile a native GNU Binutils.
   > --prefix=/tools/usr --disable-nls --with-lib-path=/tools/usr/lib
   $ make -j 4
   $ make install
+  $ make -C ld clean
+  $ make -C ld LIB_PATH=/usr/lib:/lib
+  $ cp -v ld/ld-new /tools/usr/bin
+  $ cd ..
+  $ rm -Rf binutils-build
+
+Prepare GCC for a native build, disabling the fixincludes script and adding the
+'-fomit-frame-pointer' flag that is missing from non-bootstrapped GCC builds.
+Note that the syntax in the cp command lines is a non-standard feature of GNU
+Bash; this may not work on other shells.
+  $ cd gcc-4.6.2
+  $ cp -v gcc/Makefile.in{,.orig}
+  $ sed 's@\./fixinc\.sh@-c true@' gcc/Makefile.in.orig > gcc/Makefile.in
+  $ cp -v gcc/Makefile.in{,.tmp}
+  $ sed 's/^T_CFLAGS =$/& -fomit-frame-pointer/' gcc/Makefile.in.tmp > \
+  > gcc/Makefile.in
+  $ for file in $(find gcc/config -name linux64.h -o -name linux.h -o -name sysv4.h); do cp -uv ${file}{,.orig}; sed -e 's@/lib\(64\)\?\(32\)\?/ld@/tools/usr&@g' -e 's@/usr@/tools&@g' ${file}.orig > ${file}; touch ${file}.orig; done
+  $ case $(uname -m) in x86_64) for file in $(find gcc/config -name t-linux64); do cp -v ${file}{,.orig}; sed '/MULTILIB_OSDIRNAMES/d' ${file}.orig > ${file}; done ;; esac
+  $ cd ..
+
+Cross-comile a native GCC.
+  $ mkdir gcc-build
+  $ cd gcc-build
+  $ CC="${BBLL_TARGET}-gcc -B/tools/usr/lib" AR=${BBLL_TARGET}-ar RANLIB=${BBLL_TARGET}-ranlib ../gcc-4.6.2/configure --prefix=/tools/usr --with-local-prefix=/tools/usr --with-sysroot="${BBLL}" --with-build-sysroot="${BBLL}" --enable-clocale=gnu --enable-shared --enable-threads=posix --enable-__cxa_atexit --enable-languages=c,c++ --disable-libstdcxx-pch --disable-multilib --disable-bootstrap --disable-libgomp --without-ppl --without-cloog --with-mpfr-include=$(pwd)/../gcc-4.6.2/mpfr/src --with-mpfr-lib=$(pwd)/mpfr/src/.libs
+
--
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