GCC cross compile tool

I am to build GCC with these commands, but make install fails in GCC

export CC="gcc -m64"
export CXX="g++ -m64"


mkdir binutils-build
cd binutils-build

../binutils-2.23.52/configure --prefix=/home/karthik/Learn/arm-binutils --target=arm-eabi --enable-interwork --enable-multilib

make all install

export PATH="$PATH:/home/karthik/Learn/arm-binutils/bin"

cd gcc-4.8.0

./contrib/download_prerequisites

cd ..

mkdir gcc-arm-cross
cd gcc-arm-cross

../gcc-4.8.0/configure \
--target=arm-eabi \
--host=x86_64-linux-gnu --build=x86_64-linux-gnu \
--with-gmp-version=4.3.2 --with-mpfr-version=2.4.2 --with-gcc-version=4.7.2 \
--disable-nls --disable-shared --disable-multilib \
--disable-decimal-float --disable-threads \
--disable-libmudflap --disable-libssp \
--disable-libgomp --enable-languages=c
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Attached all log files

make install fails with following log:

chmod 644 /usr/local/lib/gcc/arm-eabi/4.8.0/libgcc.a
arm-eabi-ranlib /usr/local/lib/gcc/arm-eabi/4.8.0/libgcc.a
/bin/bash: arm-eabi-ranlib: command not found
make[2]: *** [install-leaf] Error 127
make[2]: Leaving directory `/home/karthik/Learn/gcc-arm-cross/arm-eabi/libgcc'
make[1]: *** [install-target-libgcc] Error 2
make[1]: Leaving directory `/home/karthik/Learn/gcc-arm-cross'
make: *** [install] Error 2

attached log

attached log