# Copyright (c) 2012 by Tracelytics, Inc.
# All rights reserved.

require 'mkmf'
require "../../lib/oboe-heroku/version"

dir_config('oboe', nil, './src/libs')

# Symlinks aren't supported in gems (it packages originals) so to keep
# the gem size manageable we create the symlinks here on the fly.
pwd = Dir.pwd
Dir.chdir './src/libs'
File.symlink('libboost_date_time.so.1.53.0', 'libboost_date_time.so')  unless File.symlink?('libboost_date_time.so')
File.symlink('libboost_system.so.1.53.0',    'libboost_system.so')     unless File.symlink?('libboost_system.so')
File.symlink('libboost_thread.so.1.53.0',    'libboost_thread.so')     unless File.symlink?('libboost_thread.so')
File.symlink('libevent-2.0.so.5.1.9',        'libevent-2.0.so.5')      unless File.symlink?('libevent-2.0.so.5')
File.symlink('libevent-2.0.so.5',            'libevent.so')            unless File.symlink?('libevent.so')
File.symlink('liboboe-1.0.so.1.3.1',         'liboboe-1.0.so.1')       unless File.symlink?('liboboe-1.0.so.1')
File.symlink('liboboe-1.0.so.1.3.1',         'liboboe.so')             unless File.symlink?('liboboe.so')
File.symlink('libthrift-0.9.0.so',           'libthrift.so')           unless File.symlink?('libthrift.so')
File.symlink('libthriftnb-0.9.0.so',         'libthriftnb.so')         unless File.symlink?('libthriftnb.so')
File.symlink('libthriftz-0.9.0.so',          'libthriftz.so')          unless File.symlink?('libthriftz.so')
Dir.chdir pwd

$libs = append_library($libs, "stdc++")
$libs = append_library($libs, "oboe")
$libs = append_library($libs, "boost_system")
$libs = append_library($libs, "boost_date_time")
$libs = append_library($libs, "fb303")
$libs = append_library($libs, "thrift")
$libs = append_library($libs, "thriftnb")
$libs = append_library($libs, "thriftz")
$libs = append_library($libs, "event")

# FIXME: Static path hack
# This is used to get around Heroku's temporary area build pack
# compilation process.  We use this path to supply to ld rpath
# so that bundled libraries can be linked dynamically at runtime.
# The alternative to this would be to set LD_LIBRARY_PATH
# in the application which can be risky since we bundle
# a couple common libraries such as libevent.
static_lib_path = "/app/vendor/bundle/ruby/#{Gem::ConfigMap[:ruby_version]}/gems/oboe-heroku-#{OboeHeroku::Version::STRING}/ext/oboe_metal/src/libs"

$CFLAGS << " #{ENV["CFLAGS"]}"
$CPPFLAGS << " #{ENV["CPPFLAGS"]}"
$LIBS << " #{ENV["LIBS"]}"
$LDFLAGS << " #{ENV["LDFLAGS"]} -Wl,-rpath,#{static_lib_path}"

cpp_command('g++') if RUBY_VERSION < '1.9'
create_makefile('oboe_metal', 'src')