temp.sh

mkdir cygwin-test

cd cygwin-test

mkdir cygwin

cd cygwin

wget http://ftp.iij.ad.jp/pub/cygwin/x86_64/release/cygwin/cygwin-3.5.7-1.tar.xz
wget http://ftp.iij.ad.jp/pub/cygwin/x86_64/release/cygwin/cygwin-devel/cygwin-devel-3.5.7-1.tar.xz
wget http://ftp.iij.ad.jp/pub/cygwin/x86_64/release/w32api-headers/w32api-headers-12.0.0-1.tar.xz
wget http://ftp.iij.ad.jp/pub/cygwin/x86_64/release/w32api-runtime/w32api-runtime-12.0.0-1.tar.xz

mkdir sys-root
cd sys-root

tar fx ../cygwin-3.5.7-1.tar.xz
tar fx ../cygwin-devel-3.5.7-1.tar.xz
tar fx ../w32api-runtime-12.0.0-1.tar.xz
tar fx ../w32api-headers-12.0.0-1.tar.xz

cd usr/lib

ln -s w32api/libadvapi32.a .
ln -s w32api/libkernel32.a .
ln -s w32api/libuser32.a .
ln -s w32api/libshell32.a .

cd ../../../../

# Build binutils
wget http://ftp.iij.ad.jp/pub/gnu/binutils/binutils-2.40.tar.xz
tar fx binutils-2.40.tar.xz

cd binutils-2.40

mkdir build
cd build

../configure --prefix=$PWD/../../cygwin/ --target=x86_64-pc-cygwin --with-gmp=/usr/local --with-mpc=/usr/local --with-mpfr=/usr/local --with-system-zlib

make -j 32
make install

cd ../../

# Build gcc
wget http://ftp.iij.ad.jp/pub/gnu/gcc/gcc-12.2.0/gcc-12.2.0.tar.xz
tar fx gcc-12.2.0.tar.xz

cd gcc-12.2.0

./contrib/download_prerequisites

mkdir build
cd build

../configure --prefix=$PWD/../../cygwin --target=x86_64-pc-cygwin --disable-multilib --with-sysroot=$PWD/../../cygwin/sys-root --enable-threads=posix --enable-languages=c,c++

make -j 32
make install

cd ../../