LinuxQuestions.org - [SOLVED] [LFS 7.4 r.c.] Chapter 6 : GCC Sanity Check Fails

The error is :

Code:

checking how to run the C preprocessor... /lib/cpp

configure: error: in `/tmp/build/gcc/src/gcc-build/x86_64-unknown-linux-gnu/libgcc':

configure: error: C preprocessor "/lib/cpp" fails sanity check

See `config.log' for more details.

make[1]: *** [configure-target-libgcc] Error 1

make[1]: Leaving directory `/tmp/build/gcc/src/gcc-build'

make: *** [all] Error 2

Checking the config.log I get this :

Code:

configure:3923: /lib/cpp  conftest.c

/tmp/build/gcc/src/gcc-4.8.1/libgcc/configure: line 1456: /lib/cpp: No such file or directory

configure:3923: $? = 127

configure: failed program was:

| /* confdefs.h */

| #define PACKAGE_NAME "GNU C Runtime Library"

| #define PACKAGE_TARNAME "libgcc"

| #define PACKAGE_VERSION "1.0"

| #define PACKAGE_STRING "GNU C Runtime Library 1.0"

| #define PACKAGE_BUGREPORT ""

| #define PACKAGE_URL "http://www.gnu.org/software/libgcc/"

| /* end confdefs.h.  */

| #ifdef __STDC__

| # include <limits.h>

| #else

| # include <assert.h>

| #endif

|                      Syntax error

configure:3953: error: in `/tmp/build/gcc/src/gcc-build/x86_64-unknown-linux-gnu/libgcc':

configure:3956: error: C preprocessor "/lib/cpp" fails sanity check

See `config.log' for more details.



## ---------------- ##

## Cache variables. ##

## ---------------- ##



ac_cv_build=x86_64-unknown-linux-gnu

ac_cv_c_compiler_gnu=yes

ac_cv_env_CC_set=set

ac_cv_env_CC_value='/tmp/build/gcc/src/gcc-build/./gcc/xgcc -B/tmp/build/gcc/src/gcc-build/./gcc/ -B/usr/x86_64-unknown-linux-gnu/bin/ -B/usr/x86_64-unknown-linux-gnu/lib/ -isystem /usr/x86_64-unknown-linux-gnu/include -isystem /usr/x86_64-unknown-linux-gnu/sys-include  '

ac_cv_env_CFLAGS_set=set

ac_cv_env_CFLAGS_value='-g -O2'

ac_cv_env_CPPFLAGS_set=set

ac_cv_env_CPPFLAGS_value=

ac_cv_env_CPP_set=

ac_cv_env_CPP_value=

ac_cv_env_LDFLAGS_set=set

ac_cv_env_LDFLAGS_value=

ac_cv_env_LIBS_set=

ac_cv_env_LIBS_value=

ac_cv_env_build_alias_set=set

ac_cv_env_build_alias_value=x86_64-unknown-linux-gnu

ac_cv_env_host_alias_set=set

ac_cv_env_host_alias_value=x86_64-unknown-linux-gnu

ac_cv_env_target_alias_set=set

ac_cv_env_target_alias_value=x86_64-unknown-linux-gnu

ac_cv_host=x86_64-unknown-linux-gnu

ac_cv_objext=o

ac_cv_prog_AR=ar

ac_cv_prog_AWK=gawk

ac_cv_prog_CC='/tmp/build/gcc/src/gcc-build/./gcc/xgcc -B/tmp/build/gcc/src/gcc-build/./gcc/ -B/usr/x86_64-unknown-linux-gnu/bin/ -B/usr/x86_64-unknown-linux-gnu/lib/ -isystem /usr/x86_64-unknown-linux-gnu/include -isystem /usr/x86_64-unknown-linux-gnu/sys-include  '

ac_cv_prog_CPP=/lib/cpp

ac_cv_prog_LIPO=lipo

ac_cv_prog_NM=/tmp/build/gcc/src/gcc-build/./gcc/nm

ac_cv_prog_RANLIB=ranlib

ac_cv_prog_STRIP=strip

ac_cv_prog_cc_c89=

ac_cv_prog_cc_g=yes



## ----------------- ##

## Output variables. ##

## ----------------- ##



AR='ar'

AWK='gawk'

CC='/tmp/build/gcc/src/gcc-build/./gcc/xgcc -B/tmp/build/gcc/src/gcc-build/./gcc/ -B/usr/x86_64-unknown-linux-gnu/bin/ -B/usr/x86_64-unknown-linux-gnu/lib/ -isystem /usr/x86_64-unknown-linux-gnu/include -isystem /usr/x86_64-unknown-linux-gnu/sys-include  '

CFLAGS='-g -O2'

CPP='/lib/cpp'

CPPFLAGS=''

DEFS=''

ECHO_C=''

ECHO_N='-n'

ECHO_T=''

EXEEXT=''

INSTALL_DATA='/tools/bin/install -c -m 644'

INSTALL_PROGRAM='/tools/bin/install -c'

INSTALL_SCRIPT='/tools/bin/install -c'

LDFLAGS=''

LIBOBJS=''

LIBS=''

LIPO='lipo'

LN_S='ln -s'

LTLIBOBJS=''

MAINT='#'

NM='/tmp/build/gcc/src/gcc-build/./gcc/nm'

OBJEXT='o'

PACKAGE_BUGREPORT=''

PACKAGE_NAME='GNU C Runtime Library'

PACKAGE_STRING='GNU C Runtime Library 1.0'

PACKAGE_TARNAME='libgcc'

PACKAGE_URL='http://www.gnu.org/software/libgcc/'

PACKAGE_VERSION='1.0'

PATH_SEPARATOR=':'

PICFLAG='-fpic'

RANLIB='ranlib'

SHELL='/bin/sh'

STRIP='strip'

ac_ct_CC=''

asm_hidden_op=''

bindir='${exec_prefix}/bin'

build='x86_64-unknown-linux-gnu'

build_alias='x86_64-unknown-linux-gnu'

build_cpu='x86_64'

build_libsubdir='build-x86_64-unknown-linux-gnu'

build_os='linux-gnu'

build_subdir='build-x86_64-unknown-linux-gnu'

build_vendor='unknown'

cpu_type=''

datadir='${datarootdir}'

datarootdir='${prefix}/share'

decimal_float=''

docdir='${datarootdir}/doc/${PACKAGE_TARNAME}'

double_type_size=''

dvidir='${docdir}'

enable_decimal_float=''

enable_shared='yes'

exec_prefix='NONE'

extra_parts=''

fixed_point=''

host='x86_64-unknown-linux-gnu'

host_alias='x86_64-unknown-linux-gnu'

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='/usr/lib'

libexecdir='/usr/lib'

libgcc_topdir='../../../gcc-4.8.1/libgcc/..'

localedir='${datarootdir}/locale'

localstatedir='${prefix}/var'

long_double_type_size=''

mandir='${datarootdir}/man'

oldincludedir='/usr/include'

pdfdir='${docdir}'

prefix='/usr'

program_transform_name='s,y,y,'

psdir='${docdir}'

sbindir='${exec_prefix}/sbin'

set_have_cc_tls=''

set_use_emutls=''

sfp_machine_header=''

sharedstatedir='${prefix}/com'

slibdir='$(libdir)'

sysconfdir='${prefix}/etc'

target_alias='x86_64-unknown-linux-gnu'

target_noncanonical='x86_64-unknown-linux-gnu'

target_subdir='x86_64-unknown-linux-gnu'

thread_header=''

tm_defines=''

tm_file=''

tmake_file=''

toolexecdir='$(libdir)/gcc-lib/$(target_noncanonical)'

toolexeclibdir='$(libdir)/../lib'

vis_hide=''



## ----------- ##

## confdefs.h. ##

## ----------- ##



/* confdefs.h */

#define PACKAGE_NAME "GNU C Runtime Library"

#define PACKAGE_TARNAME "libgcc"

#define PACKAGE_VERSION "1.0"

#define PACKAGE_STRING "GNU C Runtime Library 1.0"

#define PACKAGE_BUGREPORT ""

#define PACKAGE_URL "http://www.gnu.org/software/libgcc/"



configure: exit 1

Never encountered this before:s
Any help greatly appreciated :)