#!/bin/sh -e

# Build must happen outside of gcc source.
mkdir -p gcc-build
cd gcc-build

export libat_cv_have_ifunc=no
machine=$(gcc -dumpmachine)

../gcc/configure \
    --prefix=/usr \
    --disable-multilib \
    --disable-symvers \
    --disable-libmpx \
    --disable-libmudflap \
    --disable-libsanitizer \
    --disable-nls \
    --disable-werror \
    --disable-fixed-point \
    --disable-libstdcxx-pch \
    --enable-checking=release \
    --mandir=/usr/share/man \
    --infodir=/usr/share/info \
    --with-system-zlib \
    --enable-__cxa_atexit \
    --enable-default-pie \
    --enable-default-ssp \
    --enable-shared \
    --enable-threads \
    --enable-tls \
    --enable-languages=c,c++ \
    --build="$machine" \
    --target="$machine" \
    --host="$machine"

make BOOT_CFLAGS='-O'
make DESTDIR="$1" install

# Remove all info files.
rm -rf "$1/usr/share/info"

# Some legacy programs will expect cc
ln -s gcc "$1/usr/bin/cc"

# POSIX compliance.
install -Dm755 ../c99 "$1/usr/bin/c99"