#!/bin/bash
set -eu

if [[ "${GOOS}" != "fuchsia" ]]; then
	echo >&2 "This script should not be used unless GOOS=fuchsia"
	exit 1
fi

case "${GOARCH}" in
arm64)
	CLANG_TRIPLE="aarch64-fuchsia";;
amd64)
	CLANG_TRIPLE="x86_64-fuchsia";;
*)
	echo >&2 "Unsupported architecture: ${GOARCH}"
	exit 1;;
esac

extra_args=()
# -Qunused-arguments is used to avoid issues with intermediate builds that don't directly link fdio.
extra_args+=(-Qunused-arguments)
extra_args+=(--sysroot="${ZIRCON_SYSROOT}")
extra_args+=(-I"${FDIO_INCLUDE}")
extra_args+=(-L"${FUCHSIA_SHARED_LIBS}")

clangbin="clang"
if [[ -n "${CLANG_PREFIX}" ]]; then
	clangbin="${CLANG_PREFIX}/${clangbin}"
fi

exec "${clangbin}" --target="${CLANG_TRIPLE}" "${extra_args[@]}" "$@"