#! /usr/bin/env bash

source util.sh

VERSION=$1
URL="https://ftp.gnu.org/gnu/gcc/gcc-$VERSION/gcc-$VERSION.tar.xz"
ARCHIVE=$(basename "$URL")

# Download archive

if [[ -f "$ARCHIVE" ]]; then
  echo "$TAG Found $ARCHIVE, skipping download"
else
  echo "$TAG Downloading $URL..."
  if command -v curl >/dev/null 2>&1; then
    curl $URL -o $ARCHIVE
  elif command -v wget >/dev/null 2>&1; then
    wget -q --show-progress $URL -O $ARCHIVE
  else
    echo "$TAG error: no curl or wget; install one or download archive yourself" >&2
    exit 1
  fi
fi

# Extract archive

echo "$TAG Extracting $ARCHIVE..."
tar -xJf $ARCHIVE

# Create build folder

[[ -d "build" ]] && rm -rf build
mkdir build

# Configure. GCC does not support make uninstall so we install in this
# directory and later symlink executables to $PREFIX/bin.

PREFIX="$(pwd)"
cd build

echo "$TAG Configuring gcc..."
run_quietly giteapc-configure.log \
../gcc-$VERSION/configure --prefix="$PREFIX" --target=sh3eb-elf --with-multilib-list=m3,m4-nofpu --enable-languages=c,c++ --without-headers --with-newlib --program-prefix=sh-elf- --enable-libssp --enable-lto