build/moz.configure/libraries.configure

   1 # -*- Mode: python; c-basic-offset: 4; indent-tabs-mode: nil; tab-width: 40 -*-
   2 # vim: set filetype=python:
   3 # This Source Code Form is subject to the terms of the Mozilla Public
   4 # License, v. 2.0. If a copy of the MPL was not distributed with this
   5 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
   6
   7
   8 @template
   9 def check_clock_monotonic_support(lib=None, when=None):
  10     check_msg = "for clock_gettime(CLOCK_MONOTONIC)"
  11     flags = []
  12
  13     if lib is not None:
  14         check_msg += f" in {lib}"
  15         flags.append(f"-l{lib}")
  16
  17     check_when = building_with_gnu_cc
  18     if when is not None:
  19         check_when &= when
  20
  21     return try_link(
  22         includes=["time.h"],
  23         body="struct timespec ts; clock_gettime(CLOCK_MONOTONIC, &ts);",
  24         check_msg=check_msg,
  25         flags=flags,
  26         when=check_when,
  27     )
  28
  29
  30 have_raw_clock_monotonic_support = check_clock_monotonic_support()
  31 have_rt_clock_monotonic_support = check_clock_monotonic_support(
  32     lib="rt", when=~have_raw_clock_monotonic_support
  33 )
  34
  35 set_define(
  36     "HAVE_CLOCK_MONOTONIC",
  37     have_raw_clock_monotonic_support | have_rt_clock_monotonic_support,
  38 )
  39 set_config(
  40     "HAVE_CLOCK_MONOTONIC",
  41     have_raw_clock_monotonic_support | have_rt_clock_monotonic_support,
  42 )
  43
  44 set_config("REALTIME_LIBS", ["-lrt"], when=have_rt_clock_monotonic_support)
  45
  46
  47 have_res_ninit = try_link(
  48     includes=["sys/types.h", "netinet/in.h", "arpa/nameser.h", "resolv.h"],
  49     body="int foo = res_ninit(&_res);",
  50     check_msg="for res_ninit()",
  51     flags=depends(when=building_linux)(["-D_BSD_SOURCE=1"]),
  52     when=building_with_gnu_cc & ~target_is_netbsd & ~target_is_openbsd,
  53 )
  54
  55 set_define("HAVE_RES_NINIT", have_res_ninit)