#!/usr/bin/env python
from waflib.extras import autowaf as autowaf
from waflib import Options
import os
import re
import string
import subprocess
import sys

def fetch_git_revision ():
    cmd = "git describe HEAD"
    output = subprocess.Popen(cmd, shell=True, stderr=subprocess.STDOUT, stdout=subprocess.PIPE).communicate()[0].splitlines()
    rev = output[0].decode ('utf-8')
    return rev

def fetch_tarball_revision ():
    if not os.path.exists ('libs/ardour/revision.cc'):
        print 'This tarball was not created correctly - it is missing libs/ardour/revision.cc'
        sys.exit (1)
    with open('libs/ardour/revision.cc') as f:
        content = f.readlines()
        remove_punctuation_map = dict((ord(char), None) for char in '";')
        return content[1].decode('utf-8').strip().split(' ')[7].translate (remove_punctuation_map)

rev = fetch_tarball_revision ()

#
# rev is now of the form MAJOR.MINOR-rev-commit
#

parts = rev.split ('.')
MAJOR = parts[0]
MINOR = parts[1]
MICRO = parts[2]

V = MAJOR + '.' + MINOR + '.' + MICRO
#
# it is important that VERSION *not* be unicode string
# because if it is, it breaks waf somehow.
#
VERSION = V.encode ('ascii', 'ignore')
APPNAME = 'Ardour' + MAJOR

# Mandatory variables
top = '.'
out = 'build'

children = [
        'libs/pbd',
        'libs/midi++2',
        'libs/evoral',
        'libs/vamp-sdk',
        'libs/qm-dsp',
        'libs/vamp-plugins',
        'libs/taglib',
        'libs/libltc',
        'libs/rubberband',
        'libs/surfaces',
        'libs/panners',
        'libs/backends',
        'libs/timecode',
        'libs/ardour',
        'libs/gtkmm2ext',
        'libs/clearlooks-newer',
        'libs/audiographer',
        'libs/plugins/reasonablesynth.lv2',
        'gtk2_ardour',
        'export',
        'midi_maps',
        'mcp',
        'patchfiles'
]

i18n_children = [
        'gtk2_ardour',
        'libs/ardour',
        'libs/gtkmm2ext',
]

if sys.platform == 'linux2':
    children += [ 'tools/sanity_check' ]
    lxvst_default = True
elif sys.platform == 'darwin':
    children += [ 'libs/appleutility' ]
    lxvst_default = False
else:
    lxvst_default = False

# Version stuff

def fetch_gcc_version (CC):
    cmd = "LANG= %s --version" % CC
    output = subprocess.Popen(cmd, shell=True, stderr=subprocess.STDOUT, stdout=subprocess.PIPE).communicate()[0].splitlines()
    o = output[0].decode('utf-8')
    version = o.split(' ')[2].split('.')
    return version

def create_stored_revision():
    rev = ""
    if os.path.exists('.git'):
        rev = fetch_git_revision();
        print("Git version: " + rev + "\n")
    elif os.path.exists('libs/ardour/revision.cc'):
        print("Using packaged revision")
        return
    else:
        print("Missing libs/ardour/revision.cc.  Blame the packager.")
        sys.exit(-1)

    try:
        #
        # if you change the format of this, be sure to fix fetch_tarball_revision() above
        # so that  it still works.
        #
        text =  '#include "ardour/revision.h"\n'
        text += 'namespace ARDOUR { const char* revision = \"%s\"; }\n' % rev
        print('Writing revision info to libs/ardour/revision.cc using ' + rev)
        o = open('libs/ardour/revision.cc', 'w')
        o.write(text)
        o.close()
    except IOError:
        print('Could not open libs/ardour/revision.cc for writing\n')
        sys.exit(-1)

def set_compiler_flags (conf,opt):
    #
    # Compiler flags and other system-dependent stuff
    #

    build_host_supports_sse = False

    # Flags necessary for building
    compiler_flags = []     # generic
    c_flags = []            # C-specific
    cxx_flags = []          # C++-specific
    linker_flags = []

    # Optimization flags (overridable)
    optimization_flags = []

    # Debugging flags
    debug_flags = []

    u = os.uname ()
    cpu = u[4]
    platform = u[0].lower()
    version = u[2]

    # waf adds -O0 -g itself. thanks waf!
    is_clang = conf.env['CXX'][0].endswith('clang++')
    
    if conf.options.cxx11:
        conf.check_cxx(cxxflags=["-std=c++11"])
        cxx_flags.append('-std=c++11')
        if platform == "darwin":
            cxx_flags.append('-stdlib=libc++')
            link_flags.append('-lc++')
            # Prevents visibility issues in standard headers
            conf.define("_DARWIN_C_SOURCE", 1)

    if conf.options.asan:
        conf.check_cxx(cxxflags=["-fsanitize=address", "-fno-omit-frame-pointer"], linkflags=["-fsanitize=address"])
        cxx_flags.append('-fsanitize=address')
        cxx_flags.append('-fno-omit-frame-pointer')
        linker_flags.append('-fsanitize=address')

    if is_clang and platform == "darwin":
        # Silence warnings about the non-existing osx clang compiler flags
        # -compatibility_version and -current_version.  These are Waf
        # generated and not needed with clang
        cxx_flags.append("-Qunused-arguments")
        
    if opt.gprofile:
        debug_flags = [ '-pg' ]

    # Autodetect
    if opt.dist_target == 'auto':
        if platform == 'darwin':
            # The [.] matches to the dot after the major version, "." would match any character
            if re.search ("^[0-7][.]", version) != None:
                conf.env['build_target'] = 'panther'
            elif re.search ("^8[.]", version) != None:
                conf.env['build_target'] = 'tiger'
            elif re.search ("^9[.]", version) != None:
                conf.env['build_target'] = 'leopard'
            elif re.search ("^10[.]", version) != None:
                conf.env['build_target'] = 'snowleopard'
            elif re.search ("^11[.]", version) != None:
                conf.env['build_target'] = 'lion'
            else:
                conf.env['build_target'] = 'mountainlion'
        else:
            match = re.search(
                    "(?P<cpu>i[0-6]86|x86_64|powerpc|ppc|ppc64|arm|s390x?)",
                    cpu)
            if (match):
                conf.env['build_target'] = match.group("cpu")
                if re.search("i[0-5]86", conf.env['build_target']):
                    conf.env['build_target'] = "i386"
            else:
                conf.env['build_target'] = 'none'
    else:
        conf.env['build_target'] = opt.dist_target

    if conf.env['build_target'] == 'snowleopard':
        #
        # stupid OS X 10.6 has a bug in math.h that prevents llrint and friends
        # from being visible.
        # 
        compiler_flags.append ('-U__STRICT_ANSI__')

    if cpu == 'powerpc' and conf.env['build_target'] != 'none':
        #
        # Apple/PowerPC optimization options
        #
        # -mcpu=7450 does not reliably work with gcc 3.*
        #
        if opt.dist_target == 'panther' or opt.dist_target == 'tiger':
            if platform == 'darwin':
                # optimization_flags.extend ([ "-mcpu=7450", "-faltivec"])
                # to support g3s but still have some optimization for above
                compiler_flags.extend ([ "-mcpu=G3", "-mtune=7450"])
            else:
                compiler_flags.extend ([ "-mcpu=7400", "-maltivec", "-mabi=altivec"])
        else:
            compiler_flags.extend([ "-mcpu=750", "-mmultiple" ])
        compiler_flags.extend (["-mhard-float", "-mpowerpc-gfxopt"])
        optimization_flags.extend (["-Os"])

    elif ((re.search ("i[0-9]86", cpu) != None) or (re.search ("x86_64", cpu) != None)) and conf.env['build_target'] != 'none':


        #
        # ARCH_X86 means anything in the x86 family from i386 to x86_64
        # the compile-time presence of the macro _LP64 is used to 
        # distingush 32 and 64 bit assembler
        #

        if (re.search ("(i[0-9]86|x86_64)", cpu) != None):
            compiler_flags.append ("-DARCH_X86")

        if platform == 'linux' :

            #
            # determine processor flags via /proc/cpuinfo
            #

            if conf.env['build_target'] != 'i386':

                flag_line = os.popen ("cat /proc/cpuinfo | grep '^flags'").read()[:-1]
                x86_flags = flag_line.split (": ")[1:][0].split ()

                if "mmx" in x86_flags:
                    compiler_flags.append ("-mmmx")
                if "sse" in x86_flags:
                    build_host_supports_sse = True
                if "3dnow" in x86_flags:
                    compiler_flags.append ("-m3dnow")

            if cpu == "i586":
                compiler_flags.append ("-march=i586")
            elif cpu == "i686":
                compiler_flags.append ("-march=i686")

        if not is_clang and ((conf.env['build_target'] == 'i686') or (conf.env['build_target'] == 'x86_64')) and build_host_supports_sse:
            compiler_flags.extend (["-msse", "-mfpmath=sse", "-DUSE_XMMINTRIN"])

    # end of processor-specific section

    # optimization section
    if conf.env['FPU_OPTIMIZATION']:
        if sys.platform == 'darwin':
            compiler_flags.append("-DBUILD_VECLIB_OPTIMIZATIONS");
            linker_flags.append("-framework Accelerate")
        elif conf.env['build_target'] == 'i686' or conf.env['build_target'] == 'x86_64':
            compiler_flags.append ("-DBUILD_SSE_OPTIMIZATIONS")
        if not build_host_supports_sse:
            print("\nWarning: you are building Ardour with SSE support even though your system does not support these instructions. (This may not be an error, especially if you are a package maintainer)")

    # end optimization section

    #
    # no VST on x86_64
    #

    if conf.env['build_target'] == 'x86_64' and opt.windows_vst:
        print("\n\n==================================================")
        print("You cannot use VST plugins with a 64 bit host. Please run waf with --windows-vst=0")
        print("\nIt is theoretically possible to build a 32 bit host on a 64 bit system.")
        print("However, this is tricky and not recommended for beginners.")
        sys.exit (-1)

    if opt.lxvst:
        if conf.env['build_target'] == 'x86_64':
            compiler_flags.append("-DLXVST_64BIT")
        else:
            compiler_flags.append("-DLXVST_32BIT")

    #
    # a single way to test if we're on OS X
    #

    if conf.env['build_target'] in ['panther', 'tiger', 'leopard', 'snowleopard' ]:
        conf.define ('IS_OSX', 1)
        # force tiger or later, to avoid issues on PPC which defaults
        # back to 10.1 if we don't tell it otherwise.

        compiler_flags.extend(
                ("-DMAC_OS_X_VERSION_MIN_REQUIRED=1040",
                 '-mmacosx-version-min=10.4'))

    elif conf.env['build_target'] in [ 'lion', 'mountainlion' ]:
        compiler_flags.extend(
                ("-DMAC_OS_X_VERSION_MIN_REQUIRED=1070",
                 '-mmacosx-version-min=10.7'))
    else:
        conf.define ('IS_OSX', 0)

    #
    # save off CPU element in an env
    #
    conf.define ('CONFIG_ARCH', cpu)

    #
    # ARCH="..." overrides all
    #

    if opt.arch != None:
        optimization_flags = opt.arch.split()

    #
    # prepend boiler plate optimization flags that work on all architectures
    #

    optimization_flags[:0] = ["-pipe"]

    # don't prepend optimization flags if "-O<something>" is present
    prepend_opt_flags = True
    for flag in optimization_flags:
        if flag.startswith("-O"):
            prepend_opt_flags = False
            break

    if prepend_opt_flags:
        optimization_flags[:0] = [
                "-O3",
                "-fomit-frame-pointer",
                "-ffast-math",
                "-fstrength-reduce"
                ]

    if opt.stl_debug:
        cxx_flags.append("-D_GLIBCXX_DEBUG")

    if conf.env['DEBUG_RT_ALLOC']:
        compiler_flags.append('-DDEBUG_RT_ALLOC')
        linker_flags.append('-ldl')

    if conf.env['DEBUG_DENORMAL_EXCEPTION']:
        compiler_flags.append('-DDEBUG_DENORMAL_EXCEPTION')

    if opt.universal:
        if opt.generic:
            print ('Specifying Universal and Generic builds at the same time is not supported')
            sys.exit (1)
        else:
            if not Options.options.nocarbon:
                compiler_flags.extend(("-arch", "i386", "-arch", "ppc"))
                linker_flags.extend(("-arch", "i386", "-arch", "ppc"))
            else:
                compiler_flags.extend(
                        ("-arch", "x86_64", "-arch", "i386", "-arch", "ppc"))
                linker_flags.extend(
                        ("-arch", "x86_64", "-arch", "i386", "-arch", "ppc"))
    else:
        if opt.generic:
            compiler_flags.extend(('-arch', 'i386'))
            linker_flags.extend(('-arch', 'i386'))

    #
    # warnings flags
    #

    compiler_flags.extend(
            ('-Wall', '-Wpointer-arith', '-Wcast-qual', '-Wcast-align'))

    c_flags.extend(('-Wstrict-prototypes', '-Wmissing-prototypes'))
    cxx_flags.append('-Woverloaded-virtual')

    #
    # more boilerplate
    #

    # need ISOC9X for llabs()
    compiler_flags.extend(
            ('-DBOOST_SYSTEM_NO_DEPRECATED', '-D_ISOC9X_SOURCE',
             '-D_LARGEFILE64_SOURCE', '-D_FILE_OFFSET_BITS=64'))
    cxx_flags.extend(('-D__STDC_LIMIT_MACROS', '-D__STDC_FORMAT_MACROS'))

    if opt.nls:
        compiler_flags.append('-DENABLE_NLS')

    if opt.debug:
        conf.env.append_value('CFLAGS', debug_flags)
        conf.env.append_value('CXXFLAGS', debug_flags)
    else:
        conf.env.append_value('CFLAGS', optimization_flags)
        conf.env.append_value('CXXFLAGS', optimization_flags)

    if opt.backtrace:
        if platform != 'darwin' and not is_clang:
            linker_flags += [ '-rdynamic' ]

    conf.env.append_value('CFLAGS', compiler_flags)
    conf.env.append_value('CFLAGS', c_flags)
    conf.env.append_value('CXXFLAGS', compiler_flags)
    conf.env.append_value('CXXFLAGS', cxx_flags)
    conf.env.append_value('LINKFLAGS', linker_flags)

#----------------------------------------------------------------

# Waf stages

def options(opt):
    opt.load('compiler_c')
    opt.load('compiler_cxx')
    autowaf.set_options(opt, debug_by_default=True)
    opt.add_option('--program-name', type='string', action='store', default='Ardour', dest='program_name',
                    help='The user-visible name of the program being built')
    opt.add_option('--arch', type='string', action='store', dest='arch',
                    help='Architecture-specific compiler flags')
    opt.add_option('--backtrace', action='store_true', default=True, dest='backtrace',
                    help='Compile with -rdynamic -- allow obtaining backtraces from within Ardour')
    opt.add_option('--no-carbon', action='store_true', default=False, dest='nocarbon',
                    help='Compile without support for AU Plugins with only CARBON UI (needed for 64bit)')
    opt.add_option('--boost-sp-debug', action='store_true', default=False, dest='boost_sp_debug',
                    help='Compile with Boost shared pointer debugging')
    opt.add_option('--depstack-root', type='string', default='~', dest='depstack_root',
                    help='Directory/folder where dependency stack trees (gtk, a3) can be found (defaults to ~)')
    opt.add_option('--dist-target', type='string', default='auto', dest='dist_target',
                    help='Specify the target for cross-compiling [auto,none,x86,i386,i686,x86_64,powerpc,tiger,leopard]')
    opt.add_option('--fpu-optimization', action='store_true', default=True, dest='fpu_optimization',
                    help='Build runtime checked assembler code (default)')
    opt.add_option('--no-fpu-optimization', action='store_false', dest='fpu_optimization')
    opt.add_option('--freedesktop', action='store_true', default=False, dest='freedesktop',
                    help='Install MIME type, icons and .desktop file as per freedesktop.org standards')
    opt.add_option('--freebie', action='store_true', default=False, dest='freebie',
                    help='Build a version suitable for distribution as a zero-cost binary')
    opt.add_option('--gprofile', action='store_true', default=False, dest='gprofile',
                    help='Compile for use with gprofile')
    opt.add_option('--internal-shared-libs', action='store_true', default=True, dest='internal_shared_libs',
                   help='Build internal libs as shared libraries')
    opt.add_option('--internal-static-libs', action='store_false', dest='internal_shared_libs',
                   help='Build internal libs as static libraries')
    opt.add_option('--use-external-libs', action='store_true', default=False, dest='use_external_libs',
                   help='Use external/system versions of some bundled libraries')
    opt.add_option('--lv2', action='store_true', default=True, dest='lv2',
                    help='Compile with support for LV2 (if Lilv+Suil is available)')
    opt.add_option('--no-lv2', action='store_false', dest='lv2',
                    help='Do not compile with support for LV2')
    opt.add_option('--lxvst', action='store_true', default=lxvst_default, dest='lxvst',
                    help='Compile with support for linuxVST plugins')
    opt.add_option('--nls', action='store_true', default=True, dest='nls',
                    help='Enable i18n (native language support) (default)')
    opt.add_option('--no-nls', action='store_false', dest='nls')
    opt.add_option('--phone-home', action='store_true', default=True, dest='phone_home',
                   help='Contact ardour.org at startup for new announcements')
    opt.add_option('--no-phone-home', action='store_false', dest='phone_home',
                   help='Do not contact ardour.org at startup for new announcements')
    opt.add_option('--stl-debug', action='store_true', default=False, dest='stl_debug',
                    help='Build with debugging for the STL')
    opt.add_option('--rt-alloc-debug', action='store_true', default=False, dest='rt_alloc_debug',
                    help='Build with debugging for memory allocation in the real-time thread')
    opt.add_option('--pt-timing', action='store_true', default=False, dest='pt_timing',
                    help='Build with logging of timing in the process thread(s)')
    opt.add_option('--denormal-exception', action='store_true', default=False, dest='denormal_exception',
                    help='Raise a floating point exception if a denormal is detected')
    opt.add_option('--test', action='store_true', default=False, dest='build_tests',
                    help="Build unit tests")
    opt.add_option('--run-tests', action='store_true', default=False, dest='run_tests',
                    help="Run tests after build")
    opt.add_option('--single-tests', action='store_true', default=False, dest='single_tests',
                    help="Build a single executable for each unit test")
    #opt.add_option('--tranzport', action='store_true', default=False, dest='tranzport',
    # help='Compile with support for Frontier Designs Tranzport (if libusb is available)')
    opt.add_option('--universal', action='store_true', default=False, dest='universal',
                    help='Compile as universal binary (OS X ONLY, requires that external libraries are universal)')
    opt.add_option('--generic', action='store_true', default=False, dest='generic',
                    help='Compile with -arch i386 (OS X ONLY)')
    opt.add_option('--versioned', action='store_true', default=False, dest='versioned',
                    help='Add revision information to executable name inside the build directory')
    opt.add_option('--windows-vst', action='store_true', default=False, dest='windows_vst',
                    help='Compile with support for Windows VST')
    opt.add_option('--windows-key', type='string', action='store', dest='windows_key', default='Mod4><Super',
                    help='X Modifier(s) (Mod1,Mod2, etc) for the Windows key (X11 builds only). ' +
                    'Multiple modifiers must be separated by \'><\'')
    opt.add_option('--boost-include', type='string', action='store', dest='boost_include', default='',
                    help='directory where Boost header files can be found')
    opt.add_option('--also-include', type='string', action='store', dest='also_include', default='',
                    help='additional include directory where header files can be found (split multiples with commas)')
    opt.add_option('--also-libdir', type='string', action='store', dest='also_libdir', default='',
                    help='additional include directory where shared libraries can be found (split multiples with commas)')
    opt.add_option('--wine-include', type='string', action='store', dest='wine_include', default='/usr/include/wine/windows',
                    help='directory where Wine\'s Windows header files can be found')
    opt.add_option('--noconfirm', action='store_true', default=False, dest='noconfirm',
                    help='Do not ask questions that require confirmation during the build')
    opt.add_option('--cxx11', action='store_true', default=False, dest='cxx11',
                    help='Turn on c++11 compiler flags (-std=c++11)')
    opt.add_option('--address-sanitizer', action='store_true', default=False, dest='asan',
                    help='Turn on AddressSanitizer (requires GCC >= 4.8 or clang >= 3.1)')
    for i in children:
        opt.recurse(i)

def sub_config_and_use(conf, name, has_objects = True):
    conf.recurse(name)
    autowaf.set_local_lib(conf, name, has_objects)

def configure(conf):
    conf.load('compiler_c')
    conf.load('compiler_cxx')
    conf.env['VERSION'] = VERSION
    conf.env['MAJOR'] = MAJOR
    conf.env['MINOR'] = MINOR
    conf.line_just = 52
    autowaf.set_recursive()
    autowaf.configure(conf)
    autowaf.display_header('Ardour Configuration')

    gcc_versions = fetch_gcc_version(str(conf.env['CC']))
    if not Options.options.debug and gcc_versions[0] == '4' and gcc_versions[1] > '4':
        print('Version 4.5 of gcc is not ready for use when compiling Ardour with optimization.')
        print('Please use a different version or re-configure with --debug')
        exit (1)

    # systems with glibc have libintl builtin. systems without require explicit
    # linkage against libintl.
    #

    pkg_config_path = os.getenv('PKG_CONFIG_PATH')
    user_gtk_root = os.path.expanduser (Options.options.depstack_root + '/gtk/inst')

    if pkg_config_path is not None and pkg_config_path.find (user_gtk_root) >= 0:
        # told to search user_gtk_root
        prefinclude = ''.join ([ '-I', user_gtk_root + '/include'])
        preflib = ''.join ([ '-L', user_gtk_root + '/lib'])
        conf.env.append_value('CFLAGS', [ prefinclude ])
        conf.env.append_value('CXXFLAGS',  [prefinclude ])
        conf.env.append_value('LINKFLAGS', [ preflib ])
        autowaf.display_msg(conf, 'Will build against private GTK dependency stack in ' + user_gtk_root, 'yes')
    else:
        autowaf.display_msg(conf, 'Will build against private GTK dependency stack', 'no')

    if sys.platform == 'darwin':
        conf.define ('NEED_INTL', 1)
        autowaf.display_msg(conf, 'Will use explicit linkage against libintl in ' + user_gtk_root, 'yes')
    else:
        # libintl is part of the system, so use it
        autowaf.display_msg(conf, 'Will rely on libintl built into libc', 'yes')
            
    user_ardour_root = os.path.expanduser (Options.options.depstack_root + '/a3/inst')
    if pkg_config_path is not None and pkg_config_path.find (user_ardour_root) >= 0:
        # told to search user_ardour_root
        prefinclude = ''.join ([ '-I', user_ardour_root + '/include'])
        preflib = ''.join ([ '-L', user_ardour_root + '/lib'])
        conf.env.append_value('CFLAGS', [ prefinclude ])
        conf.env.append_value('CXXFLAGS',  [prefinclude ])
        conf.env.append_value('LINKFLAGS', [ preflib ])
        autowaf.display_msg(conf, 'Will build against private Ardour dependency stack in ' + user_ardour_root, 'yes')
    else:
        autowaf.display_msg(conf, 'Will build against private Ardour dependency stack', 'no')
        
    if Options.options.freebie:
        conf.env.append_value ('CFLAGS', '-DNO_PLUGIN_STATE')
        conf.env.append_value ('CXXFLAGS', '-DNO_PLUGIN_STATE')
        conf.define ('NO_PLUGIN_STATE', 1)

    if sys.platform == 'darwin':

        # this is required, potentially, for anything we link and then relocate into a bundle
        conf.env.append_value('LINKFLAGS', [ '-Xlinker', '-headerpad_max_install_names' ])

        conf.define ('HAVE_COREAUDIO', 1)
        conf.define ('AUDIOUNIT_SUPPORT', 1)

        conf.define ('GTKOSX', 1)
        conf.define ('TOP_MENUBAR',1)
        conf.define ('GTKOSX',1)

        # It would be nice to be able to use this to force back-compatibility with 10.4
        # but even by the time of 11, the 10.4 SDK is no longer available in any normal
        # way.
        #
        #conf.env.append_value('CXXFLAGS_OSX', "-isysroot /Developer/SDKs/MacOSX10.4u.sdk")
        #conf.env.append_value('CFLAGS_OSX', "-isysroot /Developer/SDKs/MacOSX10.4u.sdk")
        #conf.env.append_value('LINKFLAGS_OSX', "-sysroot /Developer/SDKs/MacOSX10.4u.sdk")
        #conf.env.append_value('LINKFLAGS_OSX', "-sysroot /Developer/SDKs/MacOSX10.4u.sdk")

        conf.env.append_value('CXXFLAGS_OSX', "-msse")
        conf.env.append_value('CFLAGS_OSX', "-msse")
        conf.env.append_value('CXXFLAGS_OSX', "-msse2")
        conf.env.append_value('CFLAGS_OSX', "-msse2")
        #
        #       TODO: The previous sse flags NEED to be based
        #       off processor type.  Need to add in a check
        #       for that.
        #
        conf.env.append_value('CXXFLAGS_OSX', '-F/System/Library/Frameworks')
        conf.env.append_value('CXXFLAGS_OSX', '-F/Library/Frameworks')

        conf.env.append_value('LINKFLAGS_OSX', ['-framework', 'AppKit'])
        conf.env.append_value('LINKFLAGS_OSX', ['-framework', 'CoreAudio'])
        conf.env.append_value('LINKFLAGS_OSX', ['-framework', 'CoreAudioKit'])
        conf.env.append_value('LINKFLAGS_OSX', ['-framework', 'CoreFoundation'])
        conf.env.append_value('LINKFLAGS_OSX', ['-framework', 'CoreServices'])

        conf.env.append_value('LINKFLAGS_OSX', ['-undefined', 'dynamic_lookup' ])
        conf.env.append_value('LINKFLAGS_OSX', ['-flat_namespace'])

        conf.env.append_value('CXXFLAGS_AUDIOUNITS', "-DAUDIOUNIT_SUPPORT")
        conf.env.append_value('LINKFLAGS_AUDIOUNITS', ['-framework', 'AudioToolbox', '-framework', 'AudioUnit'])
        conf.env.append_value('LINKFLAGS_AUDIOUNITS', ['-framework', 'Cocoa'])

        if re.search ("^[1-9][0-9]\.", os.uname()[2]) == None and not Options.options.nocarbon:
            conf.env.append_value('CXXFLAGS_AUDIOUNITS', "-DWITH_CARBON")
            conf.env.append_value('LINKFLAGS_AUDIOUNITS', ['-framework', 'Carbon'])
        else:
            print ('No Carbon support available for this build\n')


    if Options.options.internal_shared_libs: 
        conf.define('INTERNAL_SHARED_LIBS', 1)

    if Options.options.use_external_libs:
        conf.define('USE_EXTERNAL_LIBS', 1)

    if Options.options.boost_include != '':
        conf.env.append_value('CXXFLAGS', '-I' + Options.options.boost_include)

    if Options.options.also_include != '':
        conf.env.append_value('CXXFLAGS', '-I' + Options.options.also_include)
        conf.env.append_value('CFLAGS', '-I' + Options.options.also_include)

    if Options.options.also_libdir != '':
        conf.env.append_value('LDFLAGS', '-L' + Options.options.also_libdir)

    if Options.options.boost_sp_debug:
        conf.env.append_value('CXXFLAGS', '-DBOOST_SP_ENABLE_DEBUG_HOOKS')

    conf.check_cxx(fragment = "#include <boost/version.hpp>\nint main(void) { return (BOOST_VERSION >= 103900 ? 0 : 1); }\n",
                  execute = "1",
                  mandatory = True,
                  msg = 'Checking for boost library >= 1.39',
                  okmsg = 'ok',
                  errmsg = 'too old\nPlease install boost version 1.39 or higher.')

    autowaf.check_pkg(conf, 'glib-2.0', uselib_store='GLIB', atleast_version='2.2')
    autowaf.check_pkg(conf, 'gthread-2.0', uselib_store='GTHREAD', atleast_version='2.2')
    autowaf.check_pkg(conf, 'glibmm-2.4', uselib_store='GLIBMM', atleast_version='2.32.0')
    autowaf.check_pkg(conf, 'sndfile', uselib_store='SNDFILE', atleast_version='1.0.18')
    autowaf.check_pkg(conf, 'giomm-2.4', uselib_store='GIOMM', atleast_version='2.2')
    autowaf.check_pkg(conf, 'libcurl', uselib_store='CURL', atleast_version='7.0.0')
    autowaf.check_pkg(conf, 'liblo', uselib_store='LO', atleast_version='0.26')

    conf.check_cc(function_name='dlopen', header_name='dlfcn.h', lib='dl', uselib_store='DL')

    # Tell everyone that this is a waf build

    conf.env.append_value('CFLAGS', '-DWAF_BUILD')
    conf.env.append_value('CXXFLAGS', '-DWAF_BUILD')

    # Set up waf environment and C defines
    opts = Options.options
    if opts.phone_home:
        conf.define('PHONE_HOME', 1)
        conf.env['PHONE_HOME'] = True
    if opts.fpu_optimization:
        conf.env['FPU_OPTIMIZATION'] = True
    if opts.nls:
        conf.define('ENABLE_NLS', 1)
        conf.env['ENABLE_NLS'] = True
    if opts.build_tests:
        conf.env['BUILD_TESTS'] = True
        conf.env['RUN_TESTS'] = opts.run_tests
    if opts.single_tests:
        conf.env['SINGLE_TESTS'] = opts.single_tests
    #if opts.tranzport:
    #    conf.env['TRANZPORT'] = 1
    if opts.windows_vst:
        conf.define('WINDOWS_VST_SUPPORT', 1)
        conf.env['WINDOWS_VST_SUPPORT'] = True
        conf.env.append_value('CFLAGS', '-I' + Options.options.wine_include)
        conf.env.append_value('CXXFLAGS', '-I' + Options.options.wine_include)
        autowaf.check_header(conf, 'cxx', 'windows.h', mandatory = True)
    if opts.lxvst:
        conf.define('LXVST_SUPPORT', 1)
        conf.env['LXVST_SUPPORT'] = True
    conf.define('WINDOWS_KEY', opts.windows_key)
    conf.env['PROGRAM_NAME'] = opts.program_name
    if opts.rt_alloc_debug:
        conf.define('DEBUG_RT_ALLOC', 1)
        conf.env['DEBUG_RT_ALLOC'] = True
    if opts.pt_timing:
        conf.define('PT_TIMING', 1)
        conf.env['PT_TIMING'] = True
    if opts.denormal_exception:
        conf.define('DEBUG_DENORMAL_EXCEPTION', 1)
        conf.env['DEBUG_DENORMAL_EXCEPTION'] = True
    if opts.build_tests:
        autowaf.check_pkg(conf, 'cppunit', uselib_store='CPPUNIT', atleast_version='1.12.0', mandatory=True)

    set_compiler_flags (conf, Options.options)

    for i in children:
        sub_config_and_use(conf, i)

    # Fix utterly braindead FLAC include path to not smash assert.h
    conf.env['INCLUDES_FLAC'] = []

    config_text = open('libs/ardour/config_text.cc', "w")
    config_text.write('''#include "ardour/ardour.h"
namespace ARDOUR {
const char* const ardour_config_info = "\\n\\
''')

    def write_config_text(title, val):
        autowaf.display_msg(conf, title, val)
        config_text.write(title + ': ')
        config_text.write(str(val))
        config_text.write("\\n\\\n")

    write_config_text('Build documentation',   conf.env['DOCS'])
    write_config_text('Debuggable build',      conf.env['DEBUG'])
    write_config_text('Export all symbols (backtrace)', opts.backtrace)
    write_config_text('Install prefix',        conf.env['PREFIX'])
    write_config_text('Strict compiler flags', conf.env['STRICT'])
    write_config_text('Internal Shared Libraries', conf.is_defined('INTERNAL_SHARED_LIBS'))
    write_config_text('Use External Libraries', conf.is_defined('USE_EXTERNAL_LIBS'))

    write_config_text('Architecture flags',    opts.arch)
    write_config_text('Aubio',                 conf.is_defined('HAVE_AUBIO'))
    write_config_text('AudioUnits',            conf.is_defined('AUDIOUNIT_SUPPORT'))
    write_config_text('No plugin state',       conf.is_defined('NO_PLUGIN_STATE'))
    write_config_text('Build target',          conf.env['build_target'])
    write_config_text('CoreAudio',             conf.is_defined('HAVE_COREAUDIO'))
    write_config_text('Debug RT allocations',  conf.is_defined('DEBUG_RT_ALLOC'))
    write_config_text('Process thread timing', conf.is_defined('PT_TIMING'))
    write_config_text('Denormal exceptions',   conf.is_defined('DEBUG_DENORMAL_EXCEPTION'))
    write_config_text('FLAC',                  conf.is_defined('HAVE_FLAC'))
    write_config_text('FPU optimization',      opts.fpu_optimization)
    write_config_text('Freedesktop files',     opts.freedesktop)
    write_config_text('LV2 UI embedding',      conf.is_defined('HAVE_SUIL'))
    write_config_text('LV2 support',           conf.is_defined('LV2_SUPPORT'))
    write_config_text('LXVST support',         conf.is_defined('LXVST_SUPPORT'))
    write_config_text('OGG',                   conf.is_defined('HAVE_OGG'))
    write_config_text('Phone home',            conf.is_defined('PHONE_HOME'))
    write_config_text('Program name',          opts.program_name)
    write_config_text('Rubberband',            conf.is_defined('HAVE_RUBBERBAND'))
    write_config_text('Samplerate',            conf.is_defined('HAVE_SAMPLERATE'))
#    write_config_text('Soundtouch',            conf.is_defined('HAVE_SOUNDTOUCH'))
    write_config_text('Translation',           opts.nls)
#    write_config_text('Tranzport',             opts.tranzport)
    write_config_text('Unit tests',            conf.env['BUILD_TESTS'])
    write_config_text('Universal binary',      opts.universal)
    write_config_text('Generic x86 CPU',       opts.generic)
    write_config_text('Windows VST support',   opts.windows_vst)
    write_config_text('Wiimote support',       conf.is_defined('BUILD_WIIMOTE'))
    write_config_text('Windows key',           opts.windows_key)

    write_config_text('C compiler flags',      conf.env['CFLAGS'])
    write_config_text('C++ compiler flags',    conf.env['CXXFLAGS'])
    write_config_text('Linker flags',           conf.env['LINKFLAGS'])

    config_text.write ('";\n}\n')
    config_text.close ()
    print('')

def build(bld):
    create_stored_revision()

    # Log command executions to stdout, not err
    def our_log(msg):
        if not msg:
            return
        sys.stdout.write(str(msg))
        sys.stdout.flush()

    bld.to_log = our_log

    # add directories that contain only headers, to workaround an issue with waf

    bld.path.find_dir ('libs/evoral/evoral')
    if not bld.is_defined('USE_EXTERNAL_LIBS'):
        bld.path.find_dir ('libs/vamp-sdk/vamp-sdk')
    bld.path.find_dir ('libs/surfaces/control_protocol/control_protocol')
    bld.path.find_dir ('libs/timecode/timecode')
    if not bld.is_defined('USE_EXTERNAL_LIBS'):
        bld.path.find_dir ('libs/libltc/ltc')
        bld.path.find_dir ('libs/rubberband/rubberband')
    bld.path.find_dir ('libs/gtkmm2ext/gtkmm2ext')
    bld.path.find_dir ('libs/ardour/ardour')
    if not bld.is_defined('USE_EXTERNAL_LIBS'):
        bld.path.find_dir ('libs/taglib/taglib')
    bld.path.find_dir ('libs/pbd/pbd')

    autowaf.set_recursive()

    for i in children:
        bld.recurse(i)

    bld.install_files (os.path.join(bld.env['SYSCONFDIR'], 'ardour3', ), 'ardour_system.rc')

    if bld.env['RUN_TESTS']:
        bld.add_post_fun(test)

def i18n(bld):
    bld.recurse (i18n_children)

def i18n_pot(bld):
    bld.recurse (i18n_children)

def i18n_po(bld):
    bld.recurse (i18n_children)

def i18n_mo(bld):
    bld.recurse (i18n_children)

def tarball(bld):
    create_stored_revision()

def test(bld):
    subprocess.call("gtk2_ardour/artest")