lfs@inferno:/mnt/lab/sources/binutils-build$ CC=$LFS_TGT-gcc              \
> AR=$LFS_TGT-ar               \
> RANLIB=$LFS_TGT-ranlib       \
> ../binutils-2.23.1/configure \
>     --prefix=/tools          \
>     --disable-nls            \
>     --with-lib-path=/tools/lib
checking build system type... x86_64-unknown-linux-gnu
checking host system type... x86_64-unknown-linux-gnu
checking target system type... x86_64-unknown-linux-gnu
checking for a BSD-compatible install... /usr/bin/install -c
checking whether ln works... yes
checking whether ln -s works... yes
checking for a sed that does not truncate output... /bin/sed
checking for gawk... gawk
checking for gcc... x86_64-lfs-linux-gnu-gcc
checking for C compiler default output file name... a.out
checking whether the C compiler works... configure: error: in `/mnt/lab/sources/binutils-build':
configure: error: cannot run C compiled programs.
If you meant to cross compile, use `--host'.
See `config.log' for more details.
lfs@inferno:/mnt/lab/sources/binutils-build$

x86_64-lfs-linux-gnu

lfs@inferno:/mnt/lab/sources/binutils-build$ readelf -l a.out | grep ': /tools'
      [Requesting program interpreter: /tools/lib64/ld-linux-x86-64.so.2]

This file contains any messages produced by compilers while
running configure, to aid debugging if configure makes a mistake.

It was created by configure, which was
generated by GNU Autoconf 2.64.  Invocation command line was

  $ ../binutils-2.23.1/configure --prefix=/tools --disable-nls --with-lib-path=/tools/lib

## --------- ##
## Platform. ##
## --------- ##

hostname = inferno
uname -m = x86_64
uname -r = 3.5.0-23-generic
uname -s = Linux
uname -v = #35-Ubuntu SMP Thu Jan 24 13:15:40 UTC 2013

/usr/bin/uname -p = unknown
/bin/uname -X     = unknown

/bin/arch              = unknown
/usr/bin/arch -k       = unknown
/usr/convex/getsysinfo = unknown
/usr/bin/hostinfo      = unknown
/bin/machine           = unknown
/usr/bin/oslevel       = unknown
/bin/universe          = unknown

PATH: /tools/bin
PATH: /bin
PATH: /usr/bin


## ----------- ##
## Core tests. ##
## ----------- ##

configure:2237: checking build system type
configure:2251: result: x86_64-unknown-linux-gnu
configure:2298: checking host system type
configure:2311: result: x86_64-unknown-linux-gnu
configure:2331: checking target system type
configure:2344: result: x86_64-unknown-linux-gnu
configure:2398: checking for a BSD-compatible install
configure:2466: result: /usr/bin/install -c
configure:2477: checking whether ln works
configure:2499: result: yes
configure:2503: checking whether ln -s works
configure:2507: result: yes
configure:2514: checking for a sed that does not truncate output
configure:2578: result: /bin/sed
configure:2587: checking for gawk
configure:2603: found /usr/bin/gawk
configure:2614: result: gawk
configure:3767: checking for gcc
configure:3794: result: x86_64-lfs-linux-gnu-gcc
configure:4023: checking for C compiler version
configure:4032: x86_64-lfs-linux-gnu-gcc --version >&5
x86_64-lfs-linux-gnu-gcc (GCC) 4.7.2
Copyright (C) 2012 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

configure:4043: $? = 0
configure:4032: x86_64-lfs-linux-gnu-gcc -v >&5
Using built-in specs.
COLLECT_GCC=x86_64-lfs-linux-gnu-gcc
COLLECT_LTO_WRAPPER=/mnt/lab/tools/bin/../libexec/gcc/x86_64-lfs-linux-gnu/4.7.2/lto-wrapper
Target: x86_64-lfs-linux-gnu
Configured with: ../gcc-4.7.2/configure --target=x86_64-lfs-linux-gnu --prefix=/tools --with-sysroot=/mnt/lab --with-newlib --without-headers --with-local-prefix=/tools --with-native-system-header-dir=/tools/include --disable-nls --disable-shared --disable-multilib --disable-decimal-float --disable-threads --disable-libmudflap --disable-libssp --disable-libgomp --disable-libquadmath --enable-languages=c --with-mpfr-include=/mnt/lab/sources/gcc-build/../gcc-4.7.2/mpfr/src --with-mpfr-lib=/mnt/lab/sources/gcc-build/mpfr/src/.libs
Thread model: single
gcc version 4.7.2 (GCC) 
configure:4043: $? = 0
configure:4032: x86_64-lfs-linux-gnu-gcc -V >&5
x86_64-lfs-linux-gnu-gcc: error: unrecognized command line option '-V'
x86_64-lfs-linux-gnu-gcc: fatal error: no input files
compilation terminated.
configure:4043: $? = 1
configure:4032: x86_64-lfs-linux-gnu-gcc -qversion >&5
x86_64-lfs-linux-gnu-gcc: error: unrecognized command line option '-qversion'
x86_64-lfs-linux-gnu-gcc: fatal error: no input files
compilation terminated.
configure:4043: $? = 1
configure:4063: checking for C compiler default output file name
configure:4085: x86_64-lfs-linux-gnu-gcc    conftest.c  >&5
configure:4089: $? = 0
configure:4126: result: a.out
configure:4142: checking whether the C compiler works
configure:4151: ./a.out
../binutils-2.23.1/configure: line 4153: ./a.out: No such file or directory
configure:4155: $? = 127
configure:4162: error: in `/mnt/lab/sources/binutils-build':
configure:4166: error: cannot run C compiled programs.
If you meant to cross compile, use `--host'.
See `config.log' for more details.

## ---------------- ##
## Cache variables. ##
## ---------------- ##

ac_cv_build=x86_64-unknown-linux-gnu
ac_cv_env_AR_FOR_TARGET_set=
ac_cv_env_AR_FOR_TARGET_value=
ac_cv_env_AR_set=set
ac_cv_env_AR_value=x86_64-lfs-linux-gnu-ar
ac_cv_env_AS_FOR_TARGET_set=
ac_cv_env_AS_FOR_TARGET_value=
ac_cv_env_AS_set=
ac_cv_env_AS_value=
ac_cv_env_CCC_set=
ac_cv_env_CCC_value=
ac_cv_env_CC_FOR_TARGET_set=
ac_cv_env_CC_FOR_TARGET_value=
ac_cv_env_CC_set=set
ac_cv_env_CC_value=x86_64-lfs-linux-gnu-gcc
ac_cv_env_CFLAGS_set=
ac_cv_env_CFLAGS_value=
ac_cv_env_CPPFLAGS_set=
ac_cv_env_CPPFLAGS_value=
ac_cv_env_CXXFLAGS_set=
ac_cv_env_CXXFLAGS_value=
ac_cv_env_CXX_FOR_TARGET_set=
ac_cv_env_CXX_FOR_TARGET_value=
ac_cv_env_CXX_set=
ac_cv_env_CXX_value=
ac_cv_env_DLLTOOL_FOR_TARGET_set=
ac_cv_env_DLLTOOL_FOR_TARGET_value=
ac_cv_env_DLLTOOL_set=
ac_cv_env_DLLTOOL_value=
ac_cv_env_GCC_FOR_TARGET_set=
ac_cv_env_GCC_FOR_TARGET_value=
ac_cv_env_GCJ_FOR_TARGET_set=
ac_cv_env_GCJ_FOR_TARGET_value=
ac_cv_env_GFORTRAN_FOR_TARGET_set=
ac_cv_env_GFORTRAN_FOR_TARGET_value=
ac_cv_env_GOC_FOR_TARGET_set=
ac_cv_env_GOC_FOR_TARGET_value=
ac_cv_env_LDFLAGS_set=
ac_cv_env_LDFLAGS_value=
ac_cv_env_LD_FOR_TARGET_set=
ac_cv_env_LD_FOR_TARGET_value=
ac_cv_env_LD_set=
ac_cv_env_LD_value=
ac_cv_env_LIBS_set=
ac_cv_env_LIBS_value=
ac_cv_env_LIPO_FOR_TARGET_set=
ac_cv_env_LIPO_FOR_TARGET_value=
ac_cv_env_LIPO_set=
ac_cv_env_LIPO_value=
ac_cv_env_NM_FOR_TARGET_set=
ac_cv_env_NM_FOR_TARGET_value=
ac_cv_env_NM_set=
ac_cv_env_NM_value=
ac_cv_env_OBJCOPY_set=
ac_cv_env_OBJCOPY_value=
ac_cv_env_OBJDUMP_FOR_TARGET_set=
ac_cv_env_OBJDUMP_FOR_TARGET_value=
ac_cv_env_OBJDUMP_set=
ac_cv_env_OBJDUMP_value=
ac_cv_env_RANLIB_FOR_TARGET_set=
ac_cv_env_RANLIB_FOR_TARGET_value=
ac_cv_env_RANLIB_set=set
ac_cv_env_RANLIB_value=x86_64-lfs-linux-gnu-ranlib
ac_cv_env_READELF_FOR_TARGET_set=
ac_cv_env_READELF_FOR_TARGET_value=
ac_cv_env_READELF_set=
ac_cv_env_READELF_value=
ac_cv_env_STRIP_FOR_TARGET_set=
ac_cv_env_STRIP_FOR_TARGET_value=
ac_cv_env_STRIP_set=
ac_cv_env_STRIP_value=
ac_cv_env_WINDMC_FOR_TARGET_set=
ac_cv_env_WINDMC_FOR_TARGET_value=
ac_cv_env_WINDMC_set=
ac_cv_env_WINDMC_value=
ac_cv_env_WINDRES_FOR_TARGET_set=
ac_cv_env_WINDRES_FOR_TARGET_value=
ac_cv_env_WINDRES_set=
ac_cv_env_WINDRES_value=
ac_cv_env_build_alias_set=
ac_cv_env_build_alias_value=
ac_cv_env_build_configargs_set=
ac_cv_env_build_configargs_value=
ac_cv_env_host_alias_set=
ac_cv_env_host_alias_value=
ac_cv_env_host_configargs_set=
ac_cv_env_host_configargs_value=
ac_cv_env_target_alias_set=
ac_cv_env_target_alias_value=
ac_cv_env_target_configargs_set=
ac_cv_env_target_configargs_value=
ac_cv_host=x86_64-unknown-linux-gnu
ac_cv_path_SED=/bin/sed
ac_cv_path_install='/usr/bin/install -c'
ac_cv_prog_AWK=gawk
ac_cv_prog_ac_ct_CC=x86_64-lfs-linux-gnu-gcc
ac_cv_target=x86_64-unknown-linux-gnu
acx_cv_prog_LN=ln

## ----------------- ##
## Output variables. ##
## ----------------- ##

AR='x86_64-lfs-linux-gnu-ar'
AR_FOR_BUILD='$(AR)'
AR_FOR_TARGET=''
AS=''
AS_FOR_BUILD='$(AS)'
AS_FOR_TARGET=''
AWK='gawk'
BISON=''
BUILD_CONFIG=''
CC='x86_64-lfs-linux-gnu-gcc'
CC_FOR_BUILD='$(CC)'
CC_FOR_TARGET=''
CFLAGS=''
CFLAGS_FOR_BUILD=''
CFLAGS_FOR_TARGET=''
COMPILER_AS_FOR_TARGET=''
COMPILER_LD_FOR_TARGET=''
COMPILER_NM_FOR_TARGET=''
CONFIGURE_GDB_TK=''
CPPFLAGS=''
CXX=''
CXXFLAGS=''
CXXFLAGS_FOR_BUILD=''
CXXFLAGS_FOR_TARGET=''
CXX_FOR_BUILD='$(CXX)'
CXX_FOR_TARGET=''
DEBUG_PREFIX_CFLAGS_FOR_TARGET=''
DEFS=''
DLLTOOL=''
DLLTOOL_FOR_BUILD='$(DLLTOOL)'
DLLTOOL_FOR_TARGET=''
ECHO_C=''
ECHO_N='-n'
ECHO_T=''
EXEEXT=''
EXPECT=''
EXTRA_CONFIGARGS_LIBJAVA='--disable-static'
FLAGS_FOR_TARGET=''
FLEX=''
GCC_FOR_TARGET=''
GCC_SHLIB_SUBDIR=''
GCJ_FOR_BUILD='$(GCJ)'
GCJ_FOR_TARGET=''
GDB_TK=''
GFORTRAN_FOR_BUILD='$(GFORTRAN)'
GFORTRAN_FOR_TARGET=''
GNATBIND=''
GNATMAKE=''
GOC_FOR_BUILD='$(GOC)'
GOC_FOR_TARGET=''
INSTALL_DATA='${INSTALL} -m 644'
INSTALL_GDB_TK=''
INSTALL_PROGRAM='${INSTALL}'
INSTALL_SCRIPT='${INSTALL}'
LD=''
LDFLAGS=''
LDFLAGS_FOR_BUILD=''
LDFLAGS_FOR_TARGET=''
LD_FOR_BUILD='$(LD)'
LD_FOR_TARGET=''
LEX=''
LIBOBJS=''
LIBS=''
LIPO=''
LIPO_FOR_TARGET=''
LN='ln'
LN_S='ln -s'
LTLIBOBJS=''
M4=''
MAINT=''
MAINTAINER_MODE_FALSE=''
MAINTAINER_MODE_TRUE=''
MAKEINFO=''
NM=''
NM_FOR_BUILD='$(NM)'
NM_FOR_TARGET=''
OBJCOPY=''
OBJDUMP=''
OBJDUMP_FOR_TARGET=''
OBJEXT=''
PACKAGE_BUGREPORT=''
PACKAGE_NAME=''
PACKAGE_STRING=''
PACKAGE_TARNAME=''
PACKAGE_URL=''
PACKAGE_VERSION=''
PATH_SEPARATOR=':'
POSTSTAGE1_CONFIGURE_FLAGS=''
RANLIB='x86_64-lfs-linux-gnu-ranlib'
RANLIB_FOR_BUILD='$(RANLIB)'
RANLIB_FOR_TARGET=''
RAW_CXX_FOR_TARGET=''
READELF=''
READELF_FOR_TARGET=''
RPATH_ENVVAR=''
RUNTEST=''
SED='/bin/sed'
SHELL='/bin/bash'
STRIP=''
STRIP_FOR_TARGET=''
SYSROOT_CFLAGS_FOR_TARGET=''
TOPLEVEL_CONFIGURE_ARGUMENTS='../binutils-2.23.1/configure --prefix=/tools --disable-nls --with-lib-path=/tools/lib'
WINDMC=''
WINDMC_FOR_BUILD='$(WINDMC)'
WINDMC_FOR_TARGET=''
WINDRES=''
WINDRES_FOR_BUILD='$(WINDRES)'
WINDRES_FOR_TARGET=''
YACC=''
ac_ct_CC='x86_64-lfs-linux-gnu-gcc'
ac_ct_CXX=''
bindir='${exec_prefix}/bin'
build='x86_64-unknown-linux-gnu'
build_alias=''
build_configargs=''
build_configdirs='build-libiberty build-texinfo build-flex build-bison build-m4 build-fixincludes'
build_cpu='x86_64'
build_libsubdir='build-x86_64-unknown-linux-gnu'
build_noncanonical='x86_64-unknown-linux-gnu'
build_os='linux-gnu'
build_subdir='build-x86_64-unknown-linux-gnu'
build_tooldir=''
build_vendor='unknown'
clooginc=''
clooglibs=''
compare_exclusions=''
configdirs='intl libiberty opcodes bfd readline tcl tk itcl libgui zlib libcpp libdecnumber gmp mpfr mpc ppl cloog libelf libiconv texinfo flex bison binutils gas ld fixincludes gcc cgen sid sim gdb gprof etc expect dejagnu m4 utils guile fastjar gnattools'
datadir='${datarootdir}'
datarootdir='${prefix}/share'
do_compare=''
docdir='${datarootdir}/doc/${PACKAGE}'
dvidir='${docdir}'
exec_prefix='NONE'
extra_host_libiberty_configure_flags=''
extra_mpc_gmp_configure_flags=''
extra_mpc_mpfr_configure_flags=''
extra_mpfr_configure_flags=''
gmpinc=''
gmplibs=''
host='x86_64-unknown-linux-gnu'
host_alias=''
host_configargs=''
host_cpu='x86_64'
host_noncanonical='x86_64-unknown-linux-gnu'
host_os='linux-gnu'
host_subdir='.'
host_vendor='unknown'
htmldir='${docdir}'
includedir='${prefix}/include'
infodir='${datarootdir}/info'
libdir='${exec_prefix}/lib'
libexecdir='${exec_prefix}/libexec'
localedir='${datarootdir}/locale'
localstatedir='${prefix}/var'
mandir='${datarootdir}/man'
oldincludedir='/usr/include'
pdfdir='${docdir}'
poststage1_ldflags=''
poststage1_libs=''
pplinc=''
ppllibs=''
prefix='/tools'
program_transform_name='s,y,y,'
psdir='${docdir}'
sbindir='${exec_prefix}/sbin'
sharedstatedir='${prefix}/com'
stage1_cflags=''
stage1_checking=''
stage1_languages=''
stage1_ldflags=''
stage1_libs=''
stage2_werror_flag=''
sysconfdir='${prefix}/etc'
target='x86_64-unknown-linux-gnu'
target_alias=''
target_configargs=''
target_configdirs='target-libgcc target-libgloss target-newlib target-libgomp target-libitm target-libstdc++-v3 target-libmudflap target-libssp target-libquadmath target-libgfortran target-boehm-gc target-libffi target-zlib target-libjava target-libobjc target-libada target-libgo target-rda'
target_cpu='x86_64'
target_noncanonical='x86_64-unknown-linux-gnu'
target_os='linux-gnu'
target_subdir='x86_64-unknown-linux-gnu'
target_vendor='unknown'
tooldir=''

## ------------------- ##
## File substitutions. ##
## ------------------- ##

alphaieee_frag=''
host_makefile_frag='/dev/null'
ospace_frag=''
serialization_dependencies=''
target_makefile_frag=''

## ----------- ##
## confdefs.h. ##
## ----------- ##

/* confdefs.h */
#define PACKAGE_NAME ""
#define PACKAGE_TARNAME ""
#define PACKAGE_VERSION ""
#define PACKAGE_STRING ""
#define PACKAGE_BUGREPORT ""
#define PACKAGE_URL ""

configure: exit 1

set +h
umask 022
LFS=/mnt/lab
LC_ALL=POSIX
LFS_TGT=$(uname -m)-lfs-linux-gnu
PATH=/tools/bin:/bin:/usr/bin
export LFS LC_ALL LFS_TGT PATH

root@inferno:/mnt/Hell# bash version-check.sh
bash, version 4.2.37(1)-release
/bin/sh -> /bin/dash
Binutils: (GNU Binutils for Ubuntu 2.22.90.20120924) 1.11
bison (GNU Bison) 2.5
/usr/bin/yacc -> /usr/bin/bison.yacc
bzip2,  Version 1.0.6, 6-Sept-2010.
Coreutils:  8.13
diff (GNU diffutils) 3.2
find (GNU findutils) 4.4.2
GNU Awk 4.0.1
/usr/bin/awk -> /usr/bin/gawk
gcc (Ubuntu/Linaro 4.7.2-2ubuntu1) 4.7.2
(Ubuntu EGLIBC 2.15-0ubuntu20) 2.15
grep (GNU grep) 2.12
gzip 1.5
Linux version 3.5.0-23-generic (buildd@komainu) (gcc version 4.7.2 (Ubuntu/Linaro 4.7.2-2ubuntu1) ) #35-Ubuntu SMP Thu Jan 24 13:15:40 UTC 2013
m4 (GNU M4) 1.4.16
GNU Make 3.81
patch 2.6.1
Perl version='5.14.2';
GNU sed version 4.2.1
tar (GNU tar) 1.26
Texinfo: makeinfo (GNU texinfo) 4.13
xz (XZ Utils) 5.1.0alpha
gcc compilation OK