#!/usr/bin/env python

import os

VERSION="1.0.1"

def configure(conf):
    if conf.CHECK_BUNDLED_SYSTEM('uid_wrapper', minversion=VERSION, set_target=False):
        conf.DEFINE('USING_SYSTEM_UID_WRAPPER', 1)
        libuid_wrapper_so_path = 'libuid_wrapper.so'
    else:
        # check HAVE_GCC_THREAD_LOCAL_STORAGE
        conf.CHECK_CODE('''
            __thread int tls;

            int main(void) {
                return 0;
            }
            ''',
            'HAVE_GCC_THREAD_LOCAL_STORAGE',
            addmain=False,
            msg='Checking for thread local storage')

        # check HAVE_DESTRUCTOR_ATTRIBUTE
        conf.CHECK_CODE('''
            void test_destructor_attribute(void) __attribute__ ((destructor));

            void test_destructor_attribute(void)
            {
                return;
            }

            int main(void) {
                return 0;
            }
            ''',
            'HAVE_DESTRUCTOR_ATTRIBUTE',
            addmain=False,
            msg='Checking for library destructor support')

        # Create full path to uid_wrapper
        srcdir = os.path.realpath(conf.srcdir)
        libuid_wrapper_so_path = srcdir + '/bin/default/lib/uid_wrapper/libuid-wrapper.so'

    conf.DEFINE('LIBUID_WRAPPER_SO_PATH', libuid_wrapper_so_path)
    conf.DEFINE('UID_WRAPPER', 1)

def build(bld):
    if not bld.CONFIG_SET("USING_SYSTEM_UID_WRAPPER"):
        # We need to do it this way or the library wont work.
        # Using private_library=True will add symbol version which
        # breaks preloading!
        bld.SAMBA_LIBRARY('uid_wrapper',
                          source='uid_wrapper.c',
                          cflags='-DNDEBUG',
                          deps='dl',
                          install=False,
                          realname='libuid-wrapper.so')