#!/bin/sh

# Copyright (C) 2013 Apple Inc. All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# 1.  Redistributions of source code must retain the above copyright
#     notice, this list of conditions and the following disclaimer. 
# 2.  Redistributions in binary form must reproduce the above copyright
#     notice, this list of conditions and the following disclaimer in the
#     documentation and/or other materials provided with the distribution. 
#
# THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
# EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
# DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
# DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

set -e
set -x

if test "x$1" != "x"
then
    cd $1
fi

# Configure LLVM for a Release+Asserts build that only includes the x86_64 backend, uses
# libcpp (because that's what WebKit uses), and doesn't depend on either zlib or curses.
# In the future it will be appropriate to parameterize what backends should be built (we
# only want to build a backend for our current target) and to add more flags to remove
# dependencies and features.

# FIXME: We need LLVM to have its own sensible story for hiding symbols. But while we
# don't have a sensible story, we use a hilarious one: CPPFLAGS=-fvisibility=hidden

./configure --enable-optimized=yes --enable-backtraces=no --enable-targets=x86_64 --enable-libcpp=yes --enable-zlib=no --enable-terminfo=no CPPFLAGS=-fvisibility=hidden