make[2]: Entering directory `/media/LFSZen/sources/gcc-build/gcc'
TARGET_CPU_DEFAULT="" \
HEADERS="auto-host.h ansidecl.h" DEFINES="" \
/bin/sh ../../gcc-4.8.1/gcc/mkconfig.sh config.h
TARGET_CPU_DEFAULT="" \
HEADERS="options.h insn-constants.h config/vxworks-dummy.h config/i386/biarch64.h config/i386/i386.h config/linux-android.h config/i386/unix.h config/i386/att.h config/dbxelf.h config/elfos.h config/gnu-user.h config/glibc-stdint.h config/i386/x86-64.h config/i386/gnu-user-common.h config/i386/gnu-user64.h config/linux.h config/i386/linux-common.h config/i386/linux64.h config/initfini-array.h defaults.h" DEFINES="LIBC_GLIBC=1 LIBC_UCLIBC=2 LIBC_BIONIC=3 DEFAULT_LIBC=LIBC_GLIBC ANDROID_DEFAULT=0" \
/bin/sh ../../gcc-4.8.1/gcc/mkconfig.sh tm.h
gawk -f ../../gcc-4.8.1/gcc/opt-gather.awk ../../gcc-4.8.1/gcc/ada/gcc-interface/lang.opt ../../gcc-4.8.1/gcc/fortran/lang.opt ../../gcc-4.8.1/gcc/go/lang.opt ../../gcc-4.8.1/gcc/java/lang.opt ../../gcc-4.8.1/gcc/lto/lang.opt ../../gcc-4.8.1/gcc/c-family/c.opt ../../gcc-4.8.1/gcc/common.opt ../../gcc-4.8.1/gcc/config/fused-madd.opt ../../gcc-4.8.1/gcc/config/i386/i386.opt ../../gcc-4.8.1/gcc/config/gnu-user.opt ../../gcc-4.8.1/gcc/config/linux.opt ../../gcc-4.8.1/gcc/config/linux-android.opt > tmp-optionlist
/bin/sh ../../gcc-4.8.1/gcc/../move-if-change tmp-optionlist optionlist
echo timestamp > s-options
gawk -f ../../gcc-4.8.1/gcc/opt-functions.awk -f ../../gcc-4.8.1/gcc/opt-read.awk \
       -f ../../gcc-4.8.1/gcc/opth-gen.awk \
       < optionlist > tmp-options.h
/bin/sh ../../gcc-4.8.1/gcc/../move-if-change tmp-options.h options.h
echo timestamp > s-options-h
TARGET_CPU_DEFAULT="" \
HEADERS="auto-host.h ansidecl.h" DEFINES="" \
/bin/sh ../../gcc-4.8.1/gcc/mkconfig.sh bconfig.h
x86_64-lfs-linux-gnu-g++ -c -fomit-frame-pointer  -g -O2 -DIN_GCC   -fno-exceptions -fno-rtti -fasynchronous-unwind-tables -W -Wall -Wno-narrowing -Wwrite-strings -Wcast-qual -Wmissing-format-attribute -pedantic -Wno-long-long -Wno-variadic-macros -Wno-overlength-strings   -DHAVE_CONFIG_H -DGENERATOR_FILE -I. -Ibuild -I../../gcc-4.8.1/gcc -I../../gcc-4.8.1/gcc/build -I../../gcc-4.8.1/gcc/../include -I../../gcc-4.8.1/gcc/../libcpp/include -I/media/LFSZen/sources/gcc-build/./gmp -I/media/LFSZen/sources/gcc-4.8.1/gmp -I/media/LFSZen/sources/gcc-build/../gcc-4.8.1/mpfr/src -I/media/LFSZen/sources/gcc-4.8.1/mpc/src  -I../../gcc-4.8.1/gcc/../libdecnumber -I../../gcc-4.8.1/gcc/../libdecnumber/bid -I../libdecnumber -I../../gcc-4.8.1/gcc/../libbacktrace    \
	-o build/genconstants.o ../../gcc-4.8.1/gcc/genconstants.c
In file included from ../../gcc-4.8.1/gcc/genconstants.c:28:0:
../../gcc-4.8.1/gcc/system.h:205:20: fatal error: cstring: No such file or directory
 # include <cstring>
                    ^
compilation terminated.
make[2]: *** [build/genconstants.o] Error 1
make[2]: Leaving directory `/media/LFSZen/sources/gcc-build/gcc'
make[1]: *** [all-gcc] Error 2
make[1]: Leaving directory `/media/LFSZen/sources/gcc-build'
make: *** [all] Error 2

bash, version 4.2.42(1)-release
/bin/sh -> /bin/bash
Binutils: (GNU Binutils) 2.23.1
bison (GNU Bison) 2.7
/usr/bin/yacc -> /usr/bin/yacc
bzip2,  Version 1.0.6, 6-Sept-2010.
Coreutils:  8.21
diff (GNU diffutils) 3.2
find (GNU findutils) 4.4.2
GNU Awk 4.0.2
/usr/bin/awk -> /usr/bin/gawk
gcc (GCC) 4.7.2
g++ (GCC) 4.7.2
(GNU libc) 2.17
grep (GNU grep) 2.14
gzip 1.5
Linux version 3.4.47 (root@LFSColossus) (gcc version 4.7.2 (GCC) ) #1 SMP PREEMPT Wed Jul 10 19:58:50 BST 2013
m4 (GNU M4) 1.4.16
GNU Make 3.82
GNU patch 2.7.1
Perl version='5.16.2';
GNU sed version 4.2.1
tar (GNU tar) 1.26
Texinfo: makeinfo (GNU texinfo) 5.0
xz (XZ Utils) 5.0.4
g++ compilation OK