mirror of
https://github.com/isc-projects/bind9.git
synced 2026-03-20 01:27:20 -04:00
Merge branch '3729-drop-RHEL-7-and-clones-support' into 'main'
Drop RHEL / CentOS / Oracle Linux 7 support Closes #3729 See merge request isc-projects/bind9!7346
This commit is contained in:
Ondřej Surý
commit
4ebf27bc19
12 changed files with 58 additions and 314 deletions
|
|
@ -111,10 +111,6 @@ stages:
|
|||
|
||||
# Oracle Linux
|
||||
|
||||
.oraclelinux-7-amd64: &oraclelinux_7_amd64_image
|
||||
image: "$CI_REGISTRY_IMAGE:oraclelinux-7-amd64"
|
||||
<<: *linux_amd64
|
||||
|
||||
.oraclelinux-8-amd64: &oraclelinux_8_amd64_image
|
||||
image: "$CI_REGISTRY_IMAGE:oraclelinux-8-amd64"
|
||||
<<: *linux_amd64
|
||||
|
|
@ -591,30 +587,6 @@ unit:gcc:alpine3.16:amd64:
|
|||
- job: gcc:alpine3.16:amd64
|
||||
artifacts: true
|
||||
|
||||
# Jobs for regular GCC builds on Oracle Linux 7 (amd64)
|
||||
|
||||
gcc:oraclelinux7:amd64:
|
||||
variables:
|
||||
CC: gcc
|
||||
CFLAGS: "${CFLAGS_COMMON}"
|
||||
EXTRA_CONFIGURE: "--with-libidn2"
|
||||
<<: *oraclelinux_7_amd64_image
|
||||
<<: *build_job
|
||||
|
||||
system:gcc:oraclelinux7:amd64:
|
||||
<<: *oraclelinux_7_amd64_image
|
||||
<<: *system_test_job
|
||||
needs:
|
||||
- job: gcc:oraclelinux7:amd64
|
||||
artifacts: true
|
||||
|
||||
unit:gcc:oraclelinux7:amd64:
|
||||
<<: *oraclelinux_7_amd64_image
|
||||
<<: *unit_test_job
|
||||
needs:
|
||||
- job: gcc:oraclelinux7:amd64
|
||||
artifacts: true
|
||||
|
||||
# Jobs for regular GCC builds on Oracle Linux 8 (amd64)
|
||||
|
||||
gcc:oraclelinux8:amd64:
|
||||
|
|
|
|||
2
CHANGES
2
CHANGES
|
|
@ -1,3 +1,5 @@
|
|||
6091. [cleanup] Drop RHEL 7 and clones support. [GL #3729]
|
||||
|
||||
6090. [bug] Fix a bug in resolver's resume_dslookup() function by
|
||||
making sure that dns_resolver_createfetch() is called
|
||||
with valid parameters, as required by the function.
|
||||
|
|
|
|||
110
configure.ac
110
configure.ac
|
|
@ -309,12 +309,47 @@ AC_CHECK_HEADERS([fcntl.h regex.h sys/time.h unistd.h sys/mman.h sys/sockio.h sy
|
|||
])
|
||||
|
||||
#
|
||||
# Check for thread local storage
|
||||
# Check for C11 thread local storage
|
||||
#
|
||||
# NOTE: OpenBSD doesn't ship <threads.h>, so we can't require it (yet).
|
||||
#
|
||||
AC_CHECK_HEADERS([threads.h])
|
||||
AX_TLS([AS_IF([test "$ac_cv_tls" != "thread_local"],
|
||||
[AC_DEFINE_UNQUOTED([thread_local], [$ac_cv_tls], [Define if the compiler uses a different keyword than thread_local for TLS variables])])],
|
||||
[AC_MSG_ERROR([Thread Local Storage support required, update your toolchain to build BIND 9])])
|
||||
|
||||
#
|
||||
# C11 Atomic Operations
|
||||
#
|
||||
|
||||
AC_CHECK_HEADERS([stdatomic.h],
|
||||
[],
|
||||
[AC_MSG_ERROR([C11 Atomic Operations required, update your toolchain to build BIND 9])])
|
||||
|
||||
AC_COMPILE_IFELSE(
|
||||
[AC_LANG_PROGRAM(
|
||||
[[#include <stdatomic.h>]],
|
||||
[[atomic_int_fast32_t val = 0; atomic_fetch_add_explicit(&val, 1, memory_order_relaxed);]]
|
||||
)],
|
||||
[AC_MSG_CHECKING([whether -latomic is needed for 64-bit stdatomic.h functions])
|
||||
AC_LINK_IFELSE(
|
||||
[AC_LANG_PROGRAM(
|
||||
[[#include <stdatomic.h>]],
|
||||
[[atomic_int_fast64_t val = 0; atomic_fetch_add_explicit(&val, 1, memory_order_relaxed);]]
|
||||
)],
|
||||
[AC_MSG_RESULT([no])],
|
||||
[LIBS="$LIBS -latomic"
|
||||
AC_LINK_IFELSE(
|
||||
[AC_LANG_PROGRAM(
|
||||
[[#include <stdatomic.h>]],
|
||||
[[atomic_int_fast64_t val = 0; atomic_fetch_add_explicit(&val, 1, memory_order_relaxed);]]
|
||||
)],
|
||||
[AC_MSG_RESULT([yes])],
|
||||
[AC_MSG_FAILURE([libatomic needed, but linking with -latomic failed, please fix your toolchain.])])
|
||||
])
|
||||
],
|
||||
[AC_MSG_FAILURE([stdatomic.h header found, but compilation failed, please fix your toolchain.])])
|
||||
|
||||
AC_CHECK_HEADERS([stdalign.h stdnoreturn.h],
|
||||
[],
|
||||
[AC_MSG_ERROR([C11 standard headers not found, update your toolchain.])])
|
||||
|
||||
AC_C_CONST
|
||||
AC_C_INLINE
|
||||
|
|
@ -1100,73 +1135,6 @@ AC_COMPILE_IFELSE(
|
|||
#
|
||||
AC_CHECK_FUNCS([if_nametoindex])
|
||||
|
||||
ISC_ATOMIC_LIBS=""
|
||||
AC_CHECK_HEADERS(
|
||||
[stdatomic.h],
|
||||
[AC_MSG_CHECKING([for memory model aware atomic operations])
|
||||
AC_COMPILE_IFELSE(
|
||||
[AC_LANG_PROGRAM(
|
||||
[[#include <stdatomic.h>]],
|
||||
[[atomic_int_fast32_t val = 0; atomic_fetch_add_explicit(&val, 1, memory_order_relaxed);]]
|
||||
)],
|
||||
[AC_MSG_RESULT([stdatomic.h])
|
||||
AC_MSG_CHECKING([whether -latomic is needed for 64-bit stdatomic.h functions])
|
||||
AC_LINK_IFELSE(
|
||||
[AC_LANG_PROGRAM(
|
||||
[[#include <stdatomic.h>]],
|
||||
[[atomic_int_fast64_t val = 0; atomic_fetch_add_explicit(&val, 1, memory_order_relaxed);]]
|
||||
)],
|
||||
[AC_MSG_RESULT([no])],
|
||||
[ISC_ATOMIC_LIBS="-latomic"
|
||||
AX_SAVE_FLAGS([atomic])
|
||||
LIBS="$LIBS $ISC_ATOMIC_LIBS"
|
||||
AC_LINK_IFELSE(
|
||||
[AC_LANG_PROGRAM(
|
||||
[[#include <stdatomic.h>]],
|
||||
[[atomic_int_fast64_t val = 0; atomic_fetch_add_explicit(&val, 1, memory_order_relaxed);]]
|
||||
)],
|
||||
[AC_MSG_RESULT([yes])],
|
||||
[AC_MSG_FAILURE([libatomic needed, but linking with -latomic failed, please fix your toolchain.])])
|
||||
AX_RESTORE_FLAGS([atomic])
|
||||
])
|
||||
],
|
||||
[AC_MSG_FAILURE([stdatomic.h header found, but compilation failed, please fix your toolchain.])]
|
||||
)],
|
||||
[AC_MSG_CHECKING([for memory model aware atomic operations])
|
||||
AC_COMPILE_IFELSE(
|
||||
[AC_LANG_PROGRAM(
|
||||
[[#include <inttypes.h>]],
|
||||
[[int32_t val = 0; __atomic_fetch_add(&val, 1, __ATOMIC_RELAXED);]]
|
||||
)],
|
||||
[AC_MSG_RESULT([__atomic builtins])
|
||||
AC_DEFINE([HAVE___ATOMIC], [1], [define if __atomic builtins are not available])
|
||||
AC_MSG_CHECKING([whether -latomic is needed for 64-bit __atomic builtins])
|
||||
AC_LINK_IFELSE(
|
||||
[AC_LANG_PROGRAM(
|
||||
[[#include <inttypes.h>]],
|
||||
[[int64_t val = 0; __atomic_fetch_add(&val, 1, __ATOMIC_RELAXED);]]
|
||||
)],
|
||||
[AC_MSG_RESULT([no])],
|
||||
[ISC_ATOMIC_LIBS="-latomic"
|
||||
AX_SAVE_FLAGS([atomic])
|
||||
LIBS="$LIBS $ISC_ATOMIC_LIBS"
|
||||
AC_LINK_IFELSE(
|
||||
[AC_LANG_PROGRAM(
|
||||
[[#include <inttypes.h>]],
|
||||
[[int64_t val = 0; __atomic_fetch_add(&val, 1, __ATOMIC_RELAXED);]]
|
||||
)],
|
||||
[AC_MSG_RESULT([yes])],
|
||||
[AC_MSG_FAILURE([libatomic needed, but linking with -latomic failed, please fix your toolchain.])])
|
||||
AX_RESTORE_FLAGS([atomic])
|
||||
])
|
||||
],
|
||||
[AC_MSG_FAILURE([not found])
|
||||
])
|
||||
])
|
||||
LIBS="$LIBS $ISC_ATOMIC_LIBS"
|
||||
|
||||
AC_CHECK_HEADERS([stdalign.h stdnoreturn.h])
|
||||
|
||||
AC_CHECK_HEADERS([uchar.h])
|
||||
|
||||
#
|
||||
|
|
|
|||
|
|
@ -20,20 +20,18 @@ found in the ISC Knowledgebase:
|
|||
https://kb.isc.org/docs/supported-platforms
|
||||
|
||||
In general, this version of BIND will build and run on any
|
||||
POSIX-compliant system with a C11-compliant C compiler, BSD-style
|
||||
POSIX-compliant system with a modern C11 (or better) compiler, BSD-style
|
||||
sockets with RFC-compliant IPv6 support, POSIX-compliant threads, and
|
||||
the :ref:`required libraries <build_dependencies>`.
|
||||
|
||||
The following C11 features are used in BIND 9:
|
||||
The following C11 features are required to compile BIND 9:
|
||||
|
||||
- Atomic operations support, either in the form of C11 atomics or
|
||||
**__atomic** builtin operations.
|
||||
- Atomic operations support defined in <stdatomic.h>
|
||||
|
||||
- Thread Local Storage support, either in the form of C11
|
||||
**_Thread_local**/**thread_local**, or the **__thread** GCC
|
||||
extension.
|
||||
- Thread Local Storage support defined in <threads.h>
|
||||
|
||||
The C11 variants are preferred.
|
||||
Where it makes sense, BIND 9 uses C-standard fixes introduced by C17 update
|
||||
of the C11 standard.
|
||||
|
||||
ISC regularly tests BIND on many operating systems and architectures,
|
||||
but lacks the resources to test all of them. Consequently, ISC is only
|
||||
|
|
@ -48,7 +46,7 @@ following systems:
|
|||
- Debian 11
|
||||
- Ubuntu LTS 20.04, 22.04
|
||||
- Fedora 37
|
||||
- Red Hat Enterprise Linux / CentOS / Oracle Linux 7, 8, 9
|
||||
- Red Hat Enterprise Linux / CentOS / Oracle Linux 8, 9
|
||||
- FreeBSD 12.3, 13.1
|
||||
- OpenBSD 7.2
|
||||
- Alpine Linux 3.16
|
||||
|
|
@ -70,7 +68,7 @@ regularly by ISC.
|
|||
- NetBSD
|
||||
- Other Linux distributions still supported by their vendors, such as:
|
||||
|
||||
- Ubuntu 20.10+
|
||||
- Ubuntu 22.10+
|
||||
- Gentoo
|
||||
- Arch Linux
|
||||
|
||||
|
|
@ -91,7 +89,7 @@ supported platforms.
|
|||
- Platforms past or close to their respective EOL dates, such as:
|
||||
|
||||
- Ubuntu 14.04, 16.04, 18.04 (Ubuntu ESM releases are not supported)
|
||||
- CentOS 6
|
||||
- Red Hat Enterprise Linux / CentOS / Oracle Linux 6, 7
|
||||
- Debian 8 Jessie, 9 Stretch, 10 Buster
|
||||
- FreeBSD 10.x, 11.x
|
||||
|
||||
|
|
|
|||
|
|
@ -25,7 +25,9 @@ New Features
|
|||
Removed Features
|
||||
~~~~~~~~~~~~~~~~
|
||||
|
||||
- None.
|
||||
- Support for Red Hat Enterprise Linux version 7 (and clones) has been dropped.
|
||||
A C11 compliant compiler (or better) is now required to compile BIND 9.
|
||||
:gl:`#3729`
|
||||
|
||||
Feature Changes
|
||||
~~~~~~~~~~~~~~~
|
||||
|
|
|
|||
|
|
@ -86,7 +86,6 @@ libisc_la_HEADERS = \
|
|||
include/isc/sockaddr.h \
|
||||
include/isc/stat.h \
|
||||
include/isc/stats.h \
|
||||
include/isc/stdatomic.h \
|
||||
include/isc/stdio.h \
|
||||
include/isc/stdtime.h \
|
||||
include/isc/strerr.h \
|
||||
|
|
|
|||
|
|
@ -13,11 +13,7 @@
|
|||
|
||||
#pragma once
|
||||
|
||||
#if __STDC_VERSION__ >= 201112L && !defined(__STDC_NO_ATOMICS__)
|
||||
#include <stdatomic.h>
|
||||
#else
|
||||
#include <isc/stdatomic.h>
|
||||
#endif
|
||||
|
||||
#include <isc/util.h>
|
||||
|
||||
|
|
|
|||
|
|
@ -1,125 +0,0 @@
|
|||
/*
|
||||
* Copyright (C) Internet Systems Consortium, Inc. ("ISC")
|
||||
*
|
||||
* SPDX-License-Identifier: MPL-2.0
|
||||
*
|
||||
* This Source Code Form is subject to the terms of the Mozilla Public
|
||||
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
||||
* file, you can obtain one at https://mozilla.org/MPL/2.0/.
|
||||
*
|
||||
* See the COPYRIGHT file distributed with this work for additional
|
||||
* information regarding copyright ownership.
|
||||
*/
|
||||
|
||||
#pragma once
|
||||
|
||||
#include <inttypes.h>
|
||||
#include <stdbool.h>
|
||||
#include <stddef.h>
|
||||
#if HAVE_UCHAR_H
|
||||
#include <uchar.h>
|
||||
#endif /* HAVE_UCHAR_H */
|
||||
|
||||
/* GCC 4.7.0 introduced __atomic builtins, but not the __GNUC_ATOMICS define */
|
||||
#if !defined(__GNUC_ATOMICS) && __GNUC__ == 4 && __GNUC_MINOR__ >= 7
|
||||
#define __GNUC_ATOMICS
|
||||
#endif
|
||||
|
||||
#if !defined(__GNUC_ATOMICS)
|
||||
#error "isc/stdatomic.h does not support your compiler"
|
||||
#endif /* if !defined(__GNUC_ATOMICS) */
|
||||
|
||||
typedef enum memory_order {
|
||||
memory_order_relaxed = __ATOMIC_RELAXED,
|
||||
memory_order_consume = __ATOMIC_CONSUME,
|
||||
memory_order_acquire = __ATOMIC_ACQUIRE,
|
||||
memory_order_release = __ATOMIC_RELEASE,
|
||||
memory_order_acq_rel = __ATOMIC_ACQ_REL,
|
||||
memory_order_seq_cst = __ATOMIC_SEQ_CST
|
||||
} memory_order;
|
||||
|
||||
#ifndef HAVE_UCHAR_H
|
||||
typedef uint_least16_t char16_t;
|
||||
typedef uint_least32_t char32_t;
|
||||
#endif /* HAVE_UCHAR_H */
|
||||
|
||||
typedef bool atomic_bool;
|
||||
typedef char atomic_char;
|
||||
typedef signed char atomic_schar;
|
||||
typedef unsigned char atomic_uchar;
|
||||
typedef short atomic_short;
|
||||
typedef unsigned short atomic_ushort;
|
||||
typedef int atomic_int;
|
||||
typedef unsigned int atomic_uint;
|
||||
typedef long atomic_long;
|
||||
typedef unsigned long atomic_ulong;
|
||||
typedef long long atomic_llong;
|
||||
typedef unsigned long long atomic_ullong;
|
||||
typedef char16_t atomic_char16_t;
|
||||
typedef char32_t atomic_char32_t;
|
||||
typedef wchar_t atomic_wchar_t;
|
||||
typedef int_least8_t atomic_int_least8_t;
|
||||
typedef uint_least8_t atomic_uint_least8_t;
|
||||
typedef int_least16_t atomic_int_least16_t;
|
||||
typedef uint_least16_t atomic_uint_least16_t;
|
||||
typedef int_least32_t atomic_int_least32_t;
|
||||
typedef uint_least32_t atomic_uint_least32_t;
|
||||
typedef int_least64_t atomic_int_least64_t;
|
||||
typedef uint_least64_t atomic_uint_least64_t;
|
||||
typedef int_fast8_t atomic_int_fast8_t;
|
||||
typedef uint_fast8_t atomic_uint_fast8_t;
|
||||
typedef int_fast16_t atomic_int_fast16_t;
|
||||
typedef uint_fast16_t atomic_uint_fast16_t;
|
||||
typedef int_fast32_t atomic_int_fast32_t;
|
||||
typedef uint_fast32_t atomic_uint_fast32_t;
|
||||
typedef int_fast64_t atomic_int_fast64_t;
|
||||
typedef uint_fast64_t atomic_uint_fast64_t;
|
||||
typedef intptr_t atomic_intptr_t;
|
||||
typedef uintptr_t atomic_uintptr_t;
|
||||
typedef size_t atomic_size_t;
|
||||
typedef ptrdiff_t atomic_ptrdiff_t;
|
||||
typedef intmax_t atomic_intmax_t;
|
||||
typedef uintmax_t atomic_uintmax_t;
|
||||
|
||||
#define atomic_init(obj, desired) (*obj = desired)
|
||||
#define atomic_load_explicit(obj, order) __atomic_load_n(obj, order)
|
||||
#define atomic_store_explicit(obj, desired, order) \
|
||||
__atomic_store_n(obj, desired, order)
|
||||
#define atomic_fetch_add_explicit(obj, arg, order) \
|
||||
__atomic_fetch_add(obj, arg, order)
|
||||
#define atomic_fetch_sub_explicit(obj, arg, order) \
|
||||
__atomic_fetch_sub(obj, arg, order)
|
||||
#define atomic_fetch_and_explicit(obj, arg, order) \
|
||||
__atomic_fetch_and(obj, arg, order)
|
||||
#define atomic_fetch_or_explicit(obj, arg, order) \
|
||||
__atomic_fetch_or(obj, arg, order)
|
||||
#define atomic_compare_exchange_strong_explicit(obj, expected, desired, succ, \
|
||||
fail) \
|
||||
__atomic_compare_exchange_n(obj, expected, desired, 0, succ, fail)
|
||||
#define atomic_compare_exchange_weak_explicit(obj, expected, desired, succ, \
|
||||
fail) \
|
||||
__atomic_compare_exchange_n(obj, expected, desired, 1, succ, fail)
|
||||
#define atomic_exchange_explicit(obj, desired, order) \
|
||||
__atomic_exchange_n(obj, desired, order)
|
||||
|
||||
#define atomic_load(obj) atomic_load_explicit(obj, memory_order_seq_cst)
|
||||
#define atomic_store(obj, arg) \
|
||||
atomic_store_explicit(obj, arg, memory_order_seq_cst)
|
||||
#define atomic_fetch_add(obj, arg) \
|
||||
atomic_fetch_add_explicit(obj, arg, memory_order_seq_cst)
|
||||
#define atomic_fetch_sub(obj, arg) \
|
||||
atomic_fetch_sub_explicit(obj, arg, memory_order_seq_cst)
|
||||
#define atomic_fetch_and(obj, arg) \
|
||||
atomic_fetch_and_explicit(obj, arg, memory_order_seq_cst)
|
||||
#define atomic_fetch_or(obj, arg) \
|
||||
atomic_fetch_or_explicit(obj, arg, memory_order_seq_cst)
|
||||
#define atomic_compare_exchange_strong(obj, expected, desired) \
|
||||
atomic_compare_exchange_strong_explicit(obj, expected, desired, \
|
||||
memory_order_seq_cst, \
|
||||
memory_order_seq_cst)
|
||||
#define atomic_compare_exchange_weak(obj, expected, desired) \
|
||||
atomic_compare_exchange_weak_explicit(obj, expected, desired, \
|
||||
memory_order_seq_cst, \
|
||||
memory_order_seq_cst)
|
||||
#define atomic_exchange(obj, desired) \
|
||||
atomic_exchange_explicit(obj, desired, memory_order_seq_cst)
|
||||
|
|
@ -16,8 +16,11 @@
|
|||
/*! \file */
|
||||
|
||||
#include <pthread.h>
|
||||
|
||||
#if HAVE_THREADS_H
|
||||
#include <threads.h>
|
||||
#else
|
||||
#define thread_local _Thread_local
|
||||
#endif
|
||||
|
||||
#if defined(HAVE_PTHREAD_NP_H)
|
||||
|
|
|
|||
|
|
@ -17,6 +17,7 @@
|
|||
#include <openssl/opensslv.h>
|
||||
|
||||
#include <isc/iterated_hash.h>
|
||||
#include <isc/thread.h>
|
||||
#include <isc/util.h>
|
||||
|
||||
#if OPENSSL_VERSION_NUMBER < 0x30000000L || OPENSSL_API_LEVEL < 30000
|
||||
|
|
|
|||
|
|
@ -16,6 +16,7 @@
|
|||
#include <unistd.h>
|
||||
|
||||
#include <isc/lang.h>
|
||||
#include <isc/thread.h>
|
||||
#include <isc/tid.h>
|
||||
#include <isc/util.h>
|
||||
|
||||
|
|
|
|||
73
m4/ax_tls.m4
73
m4/ax_tls.m4
|
|
@ -1,73 +0,0 @@
|
|||
# SPDX-License-Identifier: GPL-3.0-or-later WITH Autoconf-exception-3.0
|
||||
#
|
||||
# ===========================================================================
|
||||
# https://www.gnu.org/software/autoconf-archive/ax_tls.html
|
||||
# ===========================================================================
|
||||
#
|
||||
# SYNOPSIS
|
||||
#
|
||||
# AX_TLS([action-if-found], [action-if-not-found])
|
||||
#
|
||||
# DESCRIPTION
|
||||
#
|
||||
# Provides a test for the compiler support of thread local storage (TLS)
|
||||
# extensions. Defines TLS if it is found. Currently knows about C++11,
|
||||
# GCC/ICC, and MSVC. I think SunPro uses the same as GCC, and Borland
|
||||
# apparently supports either.
|
||||
#
|
||||
# LICENSE
|
||||
#
|
||||
# Copyright (c) 2008 Alan Woodland <ajw05@aber.ac.uk>
|
||||
# Copyright (c) 2010 Diego Elio Petteno` <flameeyes@gmail.com>
|
||||
#
|
||||
# This program is free software: you can redistribute it and/or modify it
|
||||
# under the terms of the GNU General Public License as published by the
|
||||
# Free Software Foundation, either version 3 of the License, or (at your
|
||||
# option) any later version.
|
||||
#
|
||||
# This program is distributed in the hope that it will be useful, but
|
||||
# WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
|
||||
# Public License for more details.
|
||||
#
|
||||
# You should have received a copy of the GNU General Public License along
|
||||
# with this program. If not, see <https://www.gnu.org/licenses/>.
|
||||
#
|
||||
# As a special exception, the respective Autoconf Macro's copyright owner
|
||||
# gives unlimited permission to copy, distribute and modify the configure
|
||||
# scripts that are the output of Autoconf when processing the Macro. You
|
||||
# need not follow the terms of the GNU General Public License when using
|
||||
# or distributing such scripts, even though portions of the text of the
|
||||
# Macro appear in them. The GNU General Public License (GPL) does govern
|
||||
# all other use of the material that constitutes the Autoconf Macro.
|
||||
#
|
||||
# This special exception to the GPL applies to versions of the Autoconf
|
||||
# Macro released by the Autoconf Archive. When you make and distribute a
|
||||
# modified version of the Autoconf Macro, you may extend this special
|
||||
# exception to the GPL to apply to your modified version as well.
|
||||
|
||||
#serial 15
|
||||
|
||||
AC_DEFUN([AX_TLS], [
|
||||
AC_MSG_CHECKING([for thread local storage (TLS) class])
|
||||
AC_CACHE_VAL([ac_cv_tls],
|
||||
[for ax_tls_keyword in thread_local _Thread_local __thread '__declspec(thread)' none; do
|
||||
AS_CASE([$ax_tls_keyword],
|
||||
[none], [ac_cv_tls=none ; break],
|
||||
[AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
|
||||
[#include <stdlib.h>],
|
||||
[static $ax_tls_keyword int bar;]
|
||||
)],
|
||||
[ac_cv_tls=$ax_tls_keyword ; break],
|
||||
[ac_cv_tls=none]
|
||||
)]
|
||||
)
|
||||
done ]
|
||||
)
|
||||
AC_MSG_RESULT([$ac_cv_tls])
|
||||
|
||||
AS_IF([test "$ac_cv_tls" != "none"],
|
||||
[AC_DEFINE_UNQUOTED([TLS],[$ac_cv_tls],[If the compiler supports a TLS storage class, define it to that here])
|
||||
m4_ifnblank([$1],[$1],[[:]])],
|
||||
[m4_ifnblank([$2],[$2],[[:]])])
|
||||
])
|
||||
Loading…
Reference in a new issue