##
# This script set darwin specific flags (GNU GCC)
#
##
import os
import platform
import commands
from distutils.version import StrictVersion

Import('env')

target_arch = env.get('TARGET_ARCH')
target_os = env.get('TARGET_OS')

tc_path=commands.getoutput('xcode-select -p')

tc_sdks=commands.getoutput('xcodebuild -showsdks')

#Find the SDK's that are installed
sdks=[]
for line in tc_sdks.split('\n'):
    if (line == ''):
        bIn=False
    if (line[:10] == 'OS X SDKs:'):
        bIn=(target_os == 'darwin')
    elif (line[:9] == 'iOS SDKs:'):
        bIn=(target_os == 'ios')
    elif bIn:
        sdks.append(line[:14].strip())

#find the latest
maxsdk='0.0'
if len(sdks) > 0:
    for sdk in sdks:
        p = sdk.rsplit(' ',1)[1]
        if (StrictVersion(p)) > StrictVersion(maxsdk):
            maxsdk=p

# SYS_VERSION build option
help_vars = Variables()
help_vars.Add('SYS_VERSION', 'MAC OS X SDK version / IOS SDK version', os.environ.get('SYS_VERSION'))
help_vars.Update(env)
Help(help_vars.GenerateHelpText(env))

sys_version = env.get('SYS_VERSION')

#if they didn't explictly set it use the auto-detected one
if sys_version is None:
    sys_version=maxsdk

env['SYS_VERSION']=sys_version

# Set release/debug flags
if env.get('RELEASE'):
	env.AppendUnique(CCFLAGS = ['-Os'])
	env.AppendUnique(CPPDEFINES = ['NDEBUG'])
else:
	env.AppendUnique(CCFLAGS = ['-g'])
	env.AppendUnique(LINKFLAGS = ['-g'])

if target_os == 'darwin':
	sys_root = tc_path + '/Platforms/MacOSX.platform/Developer/SDKs/MacOSX' + sys_version + '.sdk/'
else:
	if target_arch in ['i386', 'x86_64']:
		sys_root = tc_path + '/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator' + sys_version + '.sdk/'
	else:
		sys_root = tc_path + '/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS' + sys_version + '.sdk/'

# Set arch flags
env.AppendUnique(CCFLAGS = ['-arch', target_arch, '-isysroot', sys_root])
env.AppendUnique(LINKFLAGS = ['-arch', target_arch, '-isysroot', sys_root])

if target_os == 'darwin':
	flag = '-mmacosx-version-min=' + sys_version
	env.AppendUnique(CCFLAGS = [flag])
	env.AppendUnique(LINKFLAGS = [flag])