#!/bin/sh

set -x
export PATH="$(brew --prefix bison)/bin:$(brew --prefix flex)/bin:/usr/local/bin:$PATH"

export PREFIX="$HOME/opt/cross"
export TARGET=i686-elf
export PATH="$PREFIX/bin:$PATH"

BUILD_FOLDER="build"
BINUTILS="binutils-2.44.tar"
GCC="gcc-14.1.0.tar"

rm -rf $BUILD_FOLDER
mkdir -p $BUILD_FOLDER
cd $BUILD_FOLDER

echo "Compile $BINUTILS"
tar -xf ../$BINUTILS
BINUTILS_SRC=$(ls . | grep "binutils.*")
BINUTILS_BUILD="binutils_build"
mkdir -p $BINUTILS_BUILD
cd $BINUTILS_BUILD
../$BINUTILS_SRC/configure --target=$TARGET --prefix="$PREFIX" --with-sysroot --disable-nls --disable-werror
make -j8
make install
cd ..

echo "Compile $GCC"

# The $PREFIX/bin dir _must_ be in the PATH. We did that above.
which -- $TARGET-as || echo $TARGET-as is not in the PATH

tar -xf ../$GCC
GCC_SRC=$(ls . | grep "gcc*")
GCC_BUILD="gcc_build"
mkdir -p $GCC_BUILD
cd $GCC_BUILD
../$GCC_SRC/configure --prefix=$PREFIX \
    --target=$TARGET \
    --disable-nls \
    --enable-languages=c,c++ \
    --disable-hosted-libstdcxx \
    --without-headers \
    --enable-interwork \
    --enable-multilib \
    --with-gmp=$(brew --prefix gmp) \
    --with-mpc=/opt/homebrew/Cellar/libmpc/1.3.1 \
    --with-mpfr=$(brew --prefix mpfr) \
    --with-newlib
make all-gcc -j8
make install-gcc
make all-target-libgcc -j8
make install-target-libgcc
make all-target-libstdc++-v3 -j8
make install-target-libstdc++-v3