Easy install guide for SH GNU tools in Cygwin (1) Download binary package (e.g. sh-elf-4.1.cygwin.tar.gz) and setup script ( named "tkbuildsetupSH.sh" ) to the C:\tmp directory. (2) Invoke Cygwin. (3) Extract binary package at the "/usr/local" directory in the Cygwin. 　 $ cd /usr/local 　 $ tar zxvf /cygdrive/c/tmp/sh-elf-4.1.cygwin.tar.gz (4) Setup environment variables. We introduced two methods, select the (4-1) or (4-2). (4-1) Execute GNU tool setup script ( named "tkbuildsetupSH.sh" ) 　 $ cd 　 $ mv /cygdrive/c/tmp/tkbuildsetupSH.sh . 　 $ . tkbuildsetupSH.sh (4-2) Append the following environment variables to the ".bashrc" 　export BD=/home/tkernel/tkv10202/tkernel_source 　export GNUs=/usr 　export GNU_BD=/usr/local/sh-elf 　export GNUsh=$GNU_BD 　export GCC_EXEC_PREFIX=$GNU_BD/lib/gcc/ 　export COMPILER_PATH=$GNU_BD/libexec/gcc/ 　PATH=$PATH:$HOME/bin:$GNUsh/bin:$GNU_BD/bin After appending, update ".bashrc" file. 　 $ source .bashrc (Note) The value of showing "BD" is an example directory for T-Kernel base directory. Please change it according to your T-Kernel environment. (5) Verify the installation of GNU tool. 　 $ sh-elf-gcc --version 　sh-elf-gcc (GCC) 4.1 　Copyright (C) 2006 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. SH GNU Tools ( sh-elf ) Binary package ( GCC 4.1 ) 　 sh-elf-4.1.060720.cygwin.tar.gz ... gcc-4.1 + GDB 6.4 Cygwin host. ( It only works for cygwin1.dll version 1.5.15 or above ) download sh-elf-4.1.cygwin.tar.gz ... gcc-4.1 Cygwin host. ( It only works for cygwin1.dll version 1.5.15 or above ) download Source package ( GCC 4.1 ) 　 binutils-2.16.92_sh_h8.060608.tar.bz2 download gcc-4.1-20060407_sh_h8.060608.tar.bz2 download newlib-1.14.0_sh_h8.060510.tar.bz2 download gdb-6.4.50.20060425_sh_h8.060718.tar.bz2 download Binary package ( GCC 4.0.2 ) 　 sh-elf-4.0.2.cygwin.tar.gz ... gcc-4.0.2 Cygwin host. download Source package ( GCC 4.0.2 ) 　 binutils-2.16.1.tar.gz download gcc-4.0.2.tar.gz download newlib-1.12.0.060127.tar.gz download Binary package ( GCC 4.0.0 )   sh-elf-4.0.0.cygwin.tar.gz ... gcc-4.0.0 Cygwin host. download Source package ( GCC 4.0.0 )   binutils-2.15.96.tar.gz download gcc-4.0.0.tar.gz download newlib-1.12.0.050519.tar.gz download Utilities   tkbuildsetupSH.sh ... bash script for GNU Tool set-up download usr_gnushsetup_e.1.00.02.pdf ... Method for Building GNU Tools (SH Version for Cygwin Host) download buildscript.gnush.1.00.00.tar.gz ... Script (Sample) for Building GNU Tools (SH Version for Cygwin Host) download M32R GNU Tools ( m32r-elf ) Binary package ( GCC 4.0.3 ) 　 m32r-elf.20060714-4.0.3-cygwin.tar.gz ... gcc-4.0.3 for Cygwin host. ( It only works for cygwin1.dll version 1.5.15 or above ） download Source package ( GCC 4.0.3 ) 　 binutils_2.17.tar.bz2 download gcc-4.0.3.tar.bz2 download newlib-1.14.0_20060714.tar.bz2 download Binary package ( GCC 3.2.3 )   m32r-elf-3.2.3-20040126.cygwin.tar.gz ... gcc-3.2.3 for Cygwin host. download m32r-elf.20040126-3.2.3-linux.tar.bz2 ... gcc-3.2.3 for Linux host. download Source package ( GCC 3.2.3 )   binutils_src_20040304.tgz download gcc-3.2_src_20040126.tar.bz2 download Utilities   tkbuildsetupM32R.sh ... bash script for GNU Tool set-up download