Several times, I had to recompile the entire GCC for ARM suite (including the link tools, the debugger, the C library and the GCC core). I have always used the script provided here and I updated the problems encountered at the beginning of the script.

The script was tested with the following tarballs:

1. mid-2009:
• binutils-2.19.1.tar.gz
• gdb-6.8.50.20090912.tar.bz2 (the 6.8 stable release does not support the ARM-THUMB automatic disassembly)
• gmp-4.2.4.tar.bz2
• mpfr-2.4.1.tar.bz2
• gcc-core-4.4.0.tar.bz2
• newlib-1.17.0.tar.gz
2. beginning-2010:
• binutils-2.20.51.tar.bz2
• gdb-7.1.tar.bz2 (the 6.8 stable release does not support the ARM-THUMB automatic disassembly)
• gmp-4.3.2.tar.bz2
• mpfr-2.4.2.tar.bz2
• gcc-core-4.4.3.tar.bz2
• newlib-1.18.0.tar.gz

The goal is to compile all the necessary tools in /opt/arm-elf-tools/gcc-X.X.X .

The script is the following:

#! /bin/sh

# Problems encountered:
# 1. during binutils/configure:
#    - gcc can not build executables (ld can not find ctr0.o) -> reinstall the Cygwin base package
# 2. during binutils compilation:
#    - libtool: link: cannot find the library `/usr/lib/libiconv.la' or unhandled argument `/usr/lib/libiconv.la' -> install Cygwin libicvon package
# 3. during gdb compilation:
#    -  WARNING: no enhanced curses library found; disabling TUI -> not necessary if I dont use TUI
#    - configure: error: no termcap library found -> install Cygwin libncurses-devel
# 4. during gmp compilation:
#    - checking for suitable m4... configure: error: No usable m4 in $PATH or /usr/5bin (see config.log for reasons). -> install Cygwin m4 (Interpreters)


# Variables
export binutils_version=2.20.51
export gdb_version=7.1
export gmp_version=4.3.2
export mpfr_version=2.4.2
export gcc_version=4.4.3
export newlib_version=1.18.0

export srcdir=$(pwd)
export target=arm-elf
export prefix=/cygdrive/c/arm-elf-tools/gcc-${gcc_version}
 
export PATH="$prefix/bin":"$PATH"


# Unpack

tar xvf binutils-${binutils_version}.tar.bz2
if [ $? -ne 0 ] ; then \
 # exit -1; \
fi
tar xvf gdb-${gdb_version}.tar.gz
if [ $? -ne 0 ] ; then \
 # exit -1; \
fi
tar xvf gmp-${gmp_version}.tar.bz2
if [ $? -ne 0 ] ; then \
 # exit -1; \
fi
tar xvf mpfr-${mpfr_version}.tar.bz2
if [ $? -ne 0 ] ; then \
 # exit -1; \
fi
tar xvf gcc-core-${gcc_version}.tar.bz2
if [ $? -ne 0 ] ; then \
 # exit -1; \
fi
tar xvf newlib-${newlib_version}.tar.gz
if [ $? -ne 0 ] ; then \
 # exit -1; \
fi

# here, eventually, replace the multilib support description file 
#cp -f t-arm-elf gcc-${gcc_version}/gcc/config/arm

# Build directory
mkdir -p $prefix

# binutils (no dependency)
mkdir build-binutils
cd build-binutils
${srcdir}/binutils-${binutils_version}/configure \
        --target=$target --prefix=$prefix \
        --enable-interwork --enable-multilib --with-float=soft
if [ $? -ne 0 ] ; then \
   exit -1; \
fi
make all install
if [ $? -ne 0 ] ; then \
   exit -1; \
fi

# gdb (no dependency)
cd $srcdir
mkdir build-gdb
 cd build-gdb
${srcdir}/gdb-${gdb_version}/configure \
        --target=$target --prefix=$prefix \
        --enable-interwork --enable-multilib --with-float=soft
if [ $? -ne 0 ] ; then \
   exit -1; \
fi
make all install
if [ $? -ne 0 ] ; then \
   exit -1; \
fi

# gmp (no dependency)
cd $srcdir
mkdir build-gmp
 cd build-gmp
${srcdir}/gmp-${gmp_version}/configure --prefix=$srcdir/build-gmp
if [ $? -ne 0 ] ; then \
   exit -1; \
fi
make
if [ $? -ne 0 ] ; then \
   exit -1; \
fi
make install
if [ $? -ne 0 ] ; then \
   exit -1; \
fi

# mpfr (gmp dependency)
cd $srcdir
mkdir build-mpfr
cd build-mpfr
${srcdir}/mpfr-${mpfr_version}/configure --prefix=$srcdir/build-mpfr --with-gmp=$srcdir/build-gmp
if [ $? -ne 0 ] ; then \
   exit -1; \
fi
make
if [ $? -ne 0 ] ; then \
   exit -1; \
fi
make install
if [ $? -ne 0 ] ; then \
   exit -1; \
fi

# gcc core (gmp and mpfr dependency)
cd $srcdir
mkdir build-gcc
cd build-gcc
${srcdir}/gcc-${gcc_version}/configure --target=$target --prefix=$prefix \
        --with-gmp=${srcdir}/build-gmp --with-mpfr=${srcdir}/build-mpfr --disable-shared \
        --enable-interwork --enable-multilib --with-float=soft \
        --enable-languages="c" --with-newlib \
        --with-headers=${srcdir}/newlib-${newlib_version}/newlib/libc/include
if [ $? -ne 0 ] ; then \
   exit -1; \
fi
make all-gcc install-gcc
if [ $? -ne 0 ] ; then \
   exit -1; \
fi


# newlib

# newlib wants arm-elf-cc but there is only arm-elf-gcc, so we make a link
#cd $prefix/bin
#ln -s arm-elf-gcc arm-elf-cc

cd $srcdir
mkdir build-newlib
cd build-newlib
${srcdir}/newlib-${newlib_version}/configure --target=$target --prefix=$prefix \
        --enable-multilib --enable-interwork --with-float=soft
if [ $? -ne 0 ] ; then \
   exit -1; \
fi
make all install
if [ $? -ne 0 ] ; then \
   exit -1; \
fi

# gcc rest
cd $srcdir/build-gcc
make all install