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configure.ac
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# Copyright (C) Internet Systems Consortium, Inc. ("ISC")
#
# 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 http://mozilla.org/MPL/2.0/.
#
# See the COPYRIGHT file distributed with this work for additional
# information regarding copyright ownership.
#
# Defining the version in m4 requires a bit of dancing around,
# so the strings are properly concatenated, as you can't use
# a shell variable in AC_INIT()
#
m4_define([bind_VERSION_MAJOR], 9)dnl
m4_define([bind_VERSION_MINOR], 17)dnl
m4_define([bind_VERSION_PATCH], 10)dnl
m4_define([bind_VERSION_EXTRA], )dnl
m4_define([bind_DESCRIPTION], [(Development Release)])dnl
m4_define([bind_SRCID], [m4_esyscmd_s([git rev-parse --short HEAD | cut -b1-7])])dnl
m4_define([bind_PKG_VERSION], [[bind_VERSION_MAJOR.bind_VERSION_MINOR.bind_VERSION_PATCH]bind_VERSION_EXTRA])dnl
#
# Autoconf initialization
#
AC_INIT([BIND], bind_PKG_VERSION, [[email protected]], [], [https://www.isc.org/downloads/])
AC_PREREQ(2.60)
AC_DEFINE([PACKAGE_VERSION_MAJOR], ["][bind_VERSION_MAJOR]["], [BIND 9 Major part of the version])
AC_DEFINE([PACKAGE_VERSION_MINOR], ["][bind_VERSION_MINOR]["], [BIND 9 Minor part of the version])
AC_DEFINE([PACKAGE_VERSION_PATCH], ["][bind_VERSION_PATCH]["], [BIND 9 Patch part of the version])
AC_DEFINE([PACKAGE_VERSION_EXTRA], ["][bind_VERSION_EXTRA]["], [BIND 9 Extra part of the version])
AC_DEFINE([PACKAGE_DESCRIPTION], [m4_ifnblank(bind_DESCRIPTION, [" ]bind_DESCRIPTION["], [])], [An extra string to print after PACKAGE_STRING])
AC_DEFINE([PACKAGE_SRCID], ["][bind_SRCID]["], [A short hash from git])
# This value should be increased whenever changing the structure of
# any object that will appear in a type 'map' master file (which
# contains a working memory image of an RBT database), as loading
# an incorrect memory image produces an inconsistent and probably
# nonfunctional database. These structures include but are not
# necessarily limited to dns_masterrawheader, rbtdb_file_header,
# rbt_file_header, dns_rbtdb, dns_rbt, dns_rbtnode, rdatasetheader.
#
# Err on the side of caution: if anything in the RBTDB is changed,
# bump the value. Making map files unreadable protects the system
# from instability; it's a feature not a bug.
#
# Whenever releasing a new major release of BIND9, set this value
# back to 1.0 when releasing the first alpha. Map files are *never*
# compatible across major releases.
AC_DEFINE([MAPAPI], ["2.0"], [BIND 9 MAPAPI Version])
bind_CONFIGARGS="${ac_configure_args:-default}"
AC_DEFINE_UNQUOTED([PACKAGE_CONFIGARGS], ["$bind_CONFIGARGS"], [Either 'defaults' or used ./configure options])
AC_DEFINE([PACKAGE_BUILDER], ["make"], [make or Visual Studio])
AC_CONFIG_SRCDIR([bin/named/main.c])
AM_INIT_AUTOMAKE([1.9 tar-pax foreign subdir-objects dist-xz no-dist-gzip -Wall -Werror])
AM_SILENT_RULES([yes])
AM_EXTRA_RECURSIVE_TARGETS([test unit doc])
AC_CONFIG_HEADERS([config.h])
AC_CONFIG_MACRO_DIR([m4])
#
# Enable maintainer mode by default only when building from git repository
# and not cross compling
#
AS_IF([test "$cross_compiling" = no],
[AM_MAINTAINER_MODE(m4_ifset([bind_SRCID],[enable],[disable]))],
[AM_MAINTAINER_MODE([disable])])
#
# Enable system extensions to C and POSIX
#
AC_USE_SYSTEM_EXTENSIONS
AC_CANONICAL_HOST
#
# Compiler compatibility flags
#
AC_PROG_CC_C99
AC_PROG_CPP_WERROR
#
# Find build compiler when cross compiling
#
AX_CC_FOR_BUILD
#
# Find the machine's endian flavor.
#
AC_C_BIGENDIAN
#
# Enable large file support
#
AC_SYS_LARGEFILE
AC_FUNC_FSEEKO
# Enable RFC 3542 APIs on macOS
AC_DEFINE([__APPLE_USE_RFC_3542], [1], [Select RFC3542 IPv6 API on macOS])
AC_PROG_MAKE_SET
# Checks for programs.
m4_ifdef([AM_PROG_AR], [AM_PROG_AR]) # call AM_PROG_AR only if available
AC_PROG_INSTALL
AC_PROG_LN_S
AX_POSIX_SHELL
AC_PROG_MKDIR_P
# Initialize libtool
LT_INIT([disable-static dlopen pic-only])
AS_IF([test "$enable_static" != "no" && test "$enable_developer" != "yes"],
[AC_MSG_ERROR([Static linking is not supported as it disables dlopen() and certain security features (e.g. RELRO, ASLR)])])
#
# Set the default CFLAGS and CPPFLAGS
#
STD_CFLAGS="-Wall -Wextra -Wwrite-strings -Wpointer-arith -Wno-missing-field-initializers -Wformat -Wshadow"
# These should be always errors
STD_CFLAGS="$STD_CFLAGS -Werror=implicit-function-declaration -Werror=missing-prototypes -Werror=format-security -Werror=parentheses -Werror=implicit -Werror=strict-prototypes"
# Fortify the sources by default
STD_CPPFLAGS="-D_FORTIFY_SOURCE=2"
#
# Additional compiler settings.
#
AX_CHECK_COMPILE_FLAG([-fno-strict-aliasing],
[STD_CFLAGS="$STD_CFLAGS -fno-strict-aliasing"])
# Clang only issues a warning so use -Werror to force a error.
AX_CHECK_COMPILE_FLAG([-Werror -fno-delete-null-pointer-checks],
[STD_CFLAGS="$STD_CFLAGS -fno-delete-null-pointer-checks"])
AX_CHECK_COMPILE_FLAG([-fdiagnostics-show-option],
[STD_CFLAGS="$STD_CFLAGS -fdiagnostics-show-option"])
host_macos=no
AS_CASE([$host],[*-darwin*],[host_macos=yes])
AM_CONDITIONAL([HOST_MACOS], [test "$host_macos" = "yes"])
#
# Change defaults for developers if not explicity set.
# Needs to be before the option is tested.
#
# [pairwise: --enable-developer, --disable-developer]
AC_ARG_ENABLE([developer],
[AS_HELP_STRING([--enable-developer],
[enable developer build settings])])
AS_IF([test "$enable_developer" = "yes"],
[DEVELOPER_MODE=yes
STD_CPPFLAGS="$STD_CPPFLAGS -DISC_MEM_DEFAULTFILL=1 -DISC_MEM_TRACKLINES=1 -DISC_LIST_CHECKINIT=1"
test "${enable_fixed_rrset+set}" = set || enable_fixed_rrset=yes
test "${enable_querytrace+set}" = set || enable_querytrace=yes
test "${with_cmocka+set}" = set || with_cmocka=yes
test "${with_dlz_filesystem+set}" = set || with_dlz_filesystem=yes
test "${with_zlib+set}" = set || with_zlib=yes
test "${enable_warn_error+set}" = set || enable_warn_error=yes
])
AC_SUBST([DEVELOPER_MODE])
AC_SUBST([STD_CFLAGS])
AC_SUBST([STD_CPPFLAGS])
# [pairwise: --enable-warn-error, --disable-warn-error]
AC_ARG_ENABLE([warn_error],
[AS_HELP_STRING([--enable-warn-error],
[turn on -Werror when compiling])],
[],[enable_warn_error=no])
AS_IF([test "$enable_warn_error" = "yes"],
[STD_CFLAGS="$STD_CFLAGS -Werror"])
#
# Use pkg-config
#
PKG_PROG_PKG_CONFIG
AS_IF([test -z "$PKG_CONFIG"],
[AC_MSG_ERROR([The pkg-config script could not be found or is too old.])])
# [pairwise: --enable-buffer-useinline, --disable-buffer-useinline]
AC_ARG_ENABLE(buffer_useinline,
AS_HELP_STRING([--enable-buffer-useinline],
[define ISC_BUFFER_USEINLINE when compiling
[default=yes]]),
if test yes = "${enable}"
then
AC_DEFINE([ISC_BUFFER_USEINLINE], [1],
[Define if you want to use inline buffers])
fi,
AC_DEFINE([ISC_BUFFER_USEINLINE], [1]))
# Fuzzing is not included in pairwise testing as fuzzing tools are
# not present in the relevant Docker image.
#
# [pairwise: skip]
AC_ARG_ENABLE([fuzzing],
[AS_HELP_STRING([--enable-fuzzing=<afl|libfuzzer|ossfuzz>],
[Enable fuzzing using American Fuzzy Lop or libFuzzer (default=no)])],
[],
[enable_fuzzing=no])
AC_MSG_CHECKING([whether to enable fuzzing mode])
AS_CASE([$enable_fuzzing],
[no],[AC_MSG_RESULT([no])],
[afl],[
AC_MSG_RESULT([using AFL])
AC_DEFINE([ENABLE_AFL], [1],
[Define to enable American Fuzzy Lop test harness])
STD_CFLAGS="$STD_CFLAGS -DFUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION=1"
FUZZ_LOG_COMPILER="afl.sh"],
[libfuzzer],[
AC_MSG_RESULT([using libFuzzer])
STD_CFLAGS="$STD_CFLAGS -DFUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION=1 -fsanitize=fuzzer-no-link,address,undefined"
LDFLAGS="$LDFLAGS -fsanitize=address,undefined"
FUZZ_LDFLAGS="-fsanitize=fuzzer,address,undefined"
FUZZ_LOG_COMPILER="libfuzzer.sh"],
[ossfuzz],[
AC_MSG_RESULT([using OSS-Fuzz])
FUZZ_LDFLAGS="$LIB_FUZZING_ENGINE"],
[*],[AC_MSG_ERROR([You need to explicitly select the fuzzer])])
AM_CONDITIONAL([HAVE_FUZZ_LOG_COMPILER], [test -n "$FUZZ_LOG_COMPILER"])
AC_SUBST([FUZZ_LOG_COMPILER])
AC_SUBST([FUZZ_LDFLAGS])
AS_IF([test "$enable_fuzzing" = "afl"],
[AC_MSG_CHECKING("for AFL enabled compiler")
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],
[#ifndef __AFL_COMPILER
#error AFL compiler required
#endif
])],
[AC_MSG_RESULT([yes])],
[AC_MSG_ERROR([set CC=afl-<gcc|clang> when --enable-fuzzing=afl is used])])
])
# [pairwise: --enable-mutex-atomics, --disable-mutex-atomics]
AC_ARG_ENABLE(mutex_atomics,
AS_HELP_STRING([--enable-mutex-atomics],
[emulate atomics by mutex-locked variables, useful for debugging
[default=no]]),
[],
[enable_mutex_atomics=no])
AC_MSG_CHECKING([whether to emulate atomics with mutexes])
case "$enable_mutex_atomics" in
yes)
AC_MSG_RESULT(yes)
AC_DEFINE(ISC_MUTEX_ATOMICS, 1, [Define to emulate atomic variables with mutexes.])
;;
no)
AC_MSG_RESULT(no)
;;
*)
AC_MSG_ERROR("--enable-mutex-atomics requires yes or no")
;;
esac
#
# Perl is optional; it is used only by some of the system test scripts.
#
AC_PATH_PROGS([PERL], [perl5 perl])
AC_SUBST([PERL])
AM_CONDITIONAL([HAVE_PERL], [test -n "$PERL"])
AX_PERL_MODULE([Digest::HMAC])
AM_CONDITIONAL([HAVE_PERLMOD_DIGEST_HMAC],
[test "$HAVE_PERLMOD_DIGEST__HMAC" = "yes"])
AX_PERL_MODULE([File::Fetch])
AM_CONDITIONAL([HAVE_PERLMOD_FILE_FETCH],
[test "$HAVE_PERLMOD_FILE__FETCH" = "yes"])
AX_PERL_MODULE([Net::DNS])
AM_CONDITIONAL([HAVE_PERLMOD_NET_DNS],
[test "$HAVE_PERLMOD_NET__DNS" = "yes"])
AX_PERL_MODULE([Net::DNS::Nameserver])
AM_CONDITIONAL([HAVE_PERLMOD_NET_DNS_NAMESERVER],
[test "$HAVE_PERLMOD_NET__DNS__NAMESERVER" = "yes"])
AX_PERL_MODULE([Time::HiRes])
AM_CONDITIONAL([HAVE_PERLMOD_TIME_HIRES],
[test "$HAVE_PERLMOD_TIME__HIRES" = "yes"])
#
# Python is optional, it is used only by some of the system test scripts.
#
AM_PATH_PYTHON([3.4], [], [:])
AM_CONDITIONAL([HAVE_PYTHON], [test "$PYTHON" != ":"])
AC_PATH_PROGS([PYTEST], [pytest-3 py.test-3 pytest pytest-pypy], [])
AS_IF([test -z "$PYTEST"],
[AC_MSG_WARN([pytest not found, some system tests will be skipped])])
AC_SUBST([PYTEST])
AM_CONDITIONAL([HAVE_PYTEST], [test -n "$PYTEST"])
AX_PYTHON_MODULE([dns])
AM_CONDITIONAL([HAVE_PYMOD_DNS], [test "$HAVE_PYMOD_DNS" = "yes"])
#
# xsltproc is optional, it is used only by system test scripts.
#
AC_PATH_PROG([XSLTPROC], [xsltproc])
#
# Using Solaris linker with gcc on Solaris breaks Thread Local Storage
#
AS_CASE([$host],
[*-solaris*],[
AS_IF([test "$GCC" = "yes"],
[LDFLAGS="$LDFLAGS -zrelax=transtls"
AC_MSG_WARN([When using GNU C Compiler on Solaris, -zrelax=transtls linker flag is used to fix bug in Thread Local Storage])
])
])
AC_HEADER_STDC
AC_CHECK_HEADERS([fcntl.h regex.h sys/time.h unistd.h sys/mman.h sys/sockio.h sys/select.h sys/param.h sys/sysctl.h net/if6.h sys/socket.h net/route.h linux/netlink.h linux/rtnetlink.h], [], [],
[$ac_includes_default
#ifdef HAVE_SYS_PARAM_H
# include <sys/param.h>
#endif
#ifdef HAVE_SYS_SOCKET_H
# include <sys/socket.h>
#endif
])
#
# Check for thread local storage
#
AC_CHECK_HEADERS([threads.h])
AX_TLS([AS_IF([test "$ac_cv_tls" != "thread_local"],
[AC_DEFINE_UNQUOTED([thread_local], [$ac_cv_tls], [Define if the compiler uses a different keyword than thread_local for TLS variables])])],
[AC_MSG_ERROR([Thread Local Storage support required, update your toolchain to build BIND 9])])
AC_C_CONST
AC_C_INLINE
AC_C_VOLATILE
#
# Check for yield support on ARM processors
#
AS_CASE([$host],
[arm*],
[AC_MSG_CHECKING([for yield instruction support])
AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM([[]],
[[__asm__ __volatile__ ("yield")]])],
[AC_MSG_RESULT([yes])
AC_DEFINE([HAVE_ARM_YIELD], [1],
[define if the ARM yield instruction is available])],
[AC_MSG_RESULT([no])])])
#
# Check for pause support on SPARC processors
#
AS_CASE([$host],
[sparc*],
[AC_MSG_CHECKING([for pause instruction support])
AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM([[]],
[[__asm__ __volatile__ ("pause")]])],
[AC_MSG_RESULT([yes])
AC_DEFINE([HAVE_SPARC_PAUSE], [1],
[define if the SPARC pause instruction is available])],
[AC_MSG_RESULT([no])])])
AC_CHECK_FUNCS([sysctlbyname])
#
# Check for the existence of mmap to enable the fast format zones
#
AC_CHECK_FUNCS(mmap)
#
# Older versions of HP/UX don't define seteuid() and setegid()
#
AC_CHECK_FUNCS([seteuid setresuid])
AC_CHECK_FUNCS([setegid setresgid])
AC_TYPE_SIZE_T
AC_TYPE_SSIZE_T
AC_TYPE_UINTPTR_T
AC_HEADER_TIME
#
# check for uname library routine
#
AC_MSG_CHECKING([for uname])
AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM(
[[#include <sys/utsname.h>
#include <stdio.h>
]],
[[
struct utsname uts;
uname(&uts);
printf("running on %s %s %s for %s\n",
uts.sysname, uts.release, uts.version, uts.machine);
]])],
[AC_MSG_RESULT(yes)
AC_DEFINE([HAVE_UNAME], [1], [define if uname is available])
],
[AC_MSG_RESULT(no)
AC_MSG_WARN([uname is not correctly supported])
])
#
# check for GCC noreturn attribute
#
AX_GCC_FUNC_ATTRIBUTE([noreturn])
#
# check if we have kqueue
#
# [pairwise: --enable-kqueue, --disable-kqueue]
AC_ARG_ENABLE([kqueue],
[AS_HELP_STRING([--enable-kqueue],
[use BSD kqueue when available [default=yes]])],
[], enable_kqueue="yes")
AS_IF([test "$enable_kqueue" = "yes"],
[AC_CHECK_FUNCS([kqueue])])
#
# check if we have epoll. Linux kernel 2.4 has epoll_create() which fails,
# so we need to try running the code, not just test its existence.
#
# [pairwise: --enable-epoll, --disable-epoll]
AC_ARG_ENABLE([epoll],
[AS_HELP_STRING([--enable-epoll],
[use Linux epoll when available [default=auto]])],
[], [enable_epoll="yes"])
AS_IF([test "$enable_epoll" = "yes"],
[AC_CHECK_FUNCS([epoll_create1])])
#
# check if we support /dev/poll
#
# [pairwise: --enable-devpoll, --disable-devpoll]
AC_ARG_ENABLE([devpoll],
[AS_HELP_STRING([--enable-devpoll],
[use /dev/poll when available [default=yes]])],
[], [enable_devpoll="yes"])
AS_IF([test "$enable_devpoll" = "yes"],
[AC_CHECK_HEADERS([sys/devpoll.h devpoll.h])])
#
# GeoIP support?
#
# Should be on by default if libmaxminddb exists.
#
# [pairwise: --enable-geoip --with-maxminddb=auto, --enable-geoip --with-maxminddb=yes, --disable-geoip]
AC_ARG_ENABLE([geoip],
[AS_HELP_STRING([--disable-geoip],
[support GeoIP2 geolocation ACLs if available [default=yes]])],
[], [enable_geoip="yes"])
# [pairwise: skip]
AC_ARG_WITH([maxminddb],
[AS_HELP_STRING([--with-maxminddb=PATH],
[Build with MaxMind GeoIP2 support (auto|yes|no|path) [default=auto]])],
[], [with_maxminddb="auto"])
AS_IF([test "$enable_geoip" = "yes"],
[AS_CASE([$with_maxminddb],
[no],[AC_MSG_ERROR([Use '--disable-geoip' to disable the GeoIP])],
[auto],[PKG_CHECK_MODULES([MAXMINDDB], [libmaxminddb],
[AC_DEFINE([HAVE_GEOIP2], [1], [Build with GeoIP2 support])
PKG_CHECK_VAR([MAXMINDDB_PREFIX], [libmaxminddb], [prefix], [], [AC_MSG_ERROR([libmaxminddb prefix not found in pkg-config; set MAXMINDDB_PREFIX in the environment])])
],[:])],
[yes],[PKG_CHECK_MODULES([MAXMINDDB], [libmaxminddb],
[AC_DEFINE([HAVE_GEOIP2], [1], [Build with GeoIP2 support])
PKG_CHECK_VAR([MAXMINDDB_PREFIX], [libmaxminddb], [prefix], [], [AC_MSG_ERROR([libmaxminddb prefix not found in pkg-config; set MAXMINDDB_PREFIX in the environment])])
])],
[ # default
AX_SAVE_FLAGS([maxminddb])
MAXMINDDB_CFLAGS="-I$with_maxminddb/include"
MAXMINDDB_LIBS="-L$with_maxminddb/lib"
CFLAGS="$CFLAGS $MAXMINDDB_CFLAGS"
LIBS="$LIBS $MAXMINDDB_LIBS"
AC_SEARCH_LIBS([MMDB_open], [maxminddb],
[AC_DEFINE([HAVE_GEOIP2], [1], [Build with GeoIP2 support])
MAXMINDDB_LIBS="$MAXMINDDB_LIBS $ac_cv_search_MMDB_open"
AC_MSG_NOTICE([GeoIP2 default database path set to $with_maxminddb/share/GeoIP])
AS_VAR_COPY([MAXMINDDB_PREFIX], [$with_maxminddb])
],
[AC_MSG_ERROR([GeoIP2 requested, but libmaxminddb not found])])
AX_RESTORE_FLAGS([maxminddb])
])
AC_ARG_VAR([MAXMINDDB_PREFIX], [value of prefix for MAXMINDDB, overriding pkg-config])
])
AM_CONDITIONAL([HAVE_GEOIP2], [test -n "$MAXMINDDB_LIBS"])
AC_SUBST([MAXMINDDB_CFLAGS])
AC_SUBST([MAXMINDDB_LIBS])
AX_PTHREAD
LIBS="$PTHREAD_LIBS $LIBS"
CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
CC="$PTHREAD_CC"
AC_CHECK_FUNCS([pthread_attr_getstacksize pthread_attr_setstacksize])
# [pairwise: --with-locktype=adaptive, --with-locktype=standard]
AC_ARG_WITH([locktype],
AS_HELP_STRING([--with-locktype=ARG],
[Specify mutex lock type
(adaptive or standard)]),
[], [with_locktype="adaptive"])
AS_CASE([$with_locktype],
[adaptive],[
AC_MSG_CHECKING([for PTHREAD_MUTEX_ADAPTIVE_NP])
AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM(
[[
#ifndef _GNU_SOURCE
#define _GNU_SOURCE
#endif
#include <pthread.h>
]],
[[
return (PTHREAD_MUTEX_ADAPTIVE_NP);
]]
)],
[AC_MSG_RESULT([using adaptive lock type])
AC_DEFINE([HAVE_PTHREAD_MUTEX_ADAPTIVE_NP], 1,
[Support for PTHREAD_MUTEX_ADAPTIVE_NP]) ],
[AC_MSG_RESULT([using standard lock type])]
)],
[standard],[AC_MSG_RESULT([using standard lock type])],
[AC_MSG_ERROR([You must specify "adaptive" or "standard" for --with-locktype.])]
)
AC_CHECK_HEADERS([sched.h])
AC_SEARCH_LIBS([sched_yield],[rt])
AC_CHECK_FUNCS([sched_yield pthread_yield pthread_yield_np])
AC_CHECK_HEADERS([sys/cpuset.h])
AC_CHECK_HEADERS([sys/procset.h])
AC_CHECK_FUNCS([pthread_setaffinity_np cpuset_setaffinity processor_bind sched_setaffinity])
# Look for functions relating to thread naming
AC_CHECK_FUNCS([pthread_setname_np pthread_set_name_np])
AC_CHECK_HEADERS([pthread_np.h], [], [], [#include <pthread.h>])
# libuv
AC_MSG_CHECKING([for libuv])
PKG_CHECK_MODULES([LIBUV], [libuv >= 1.0.0], [],
[AC_MSG_ERROR([libuv not found])])
AX_SAVE_FLAGS([libuv])
CFLAGS="$CFLAGS $LIBUV_CFLAGS"
LIBS="$LIBS $LIBUV_LIBS"
# Those functions are only provided in newer versions of libuv, we'll be emulating them
# for now
AC_CHECK_FUNCS([uv_handle_get_data uv_handle_set_data uv_import uv_udp_connect uv_translate_sys_error])
AX_RESTORE_FLAGS([libuv])
# libnghttp2
AC_MSG_CHECKING([for libnghttp2])
PKG_CHECK_MODULES([LIBNGHTTP2], [libnghttp2 >= 1.6.0], [],
[AC_MSG_ERROR([libnghttp2 not found])])
AX_SAVE_FLAGS([libnghttp2])
CFLAGS="$CFLAGS $LIBNGHTTP2_CFLAGS"
LIBS="$LIBS $LIBNGHTTP2_LIBS"
#
# flockfile is usually provided by pthreads
#
AC_CHECK_FUNCS([flockfile getc_unlocked])
#
# Look for sysconf to allow detection of the number of processors.
#
AC_CHECK_FUNCS([sysconf])
#
# Do we want to use pthread rwlock?
#
# [pairwise: --enable-pthread-rwlock, --disable-pthread-rwlock]
AC_ARG_ENABLE([pthread_rwlock],
[AS_HELP_STRING([--enable-pthread-rwlock],
[use pthread rwlock instead of internal rwlock implementation])],
[], [enable_pthread_rwlock=no])
AS_IF([test "$enable_pthread_rwlock" = "yes"],
[AC_CHECK_FUNCS([pthread_rwlock_rdlock], [],
[AC_MSG_ERROR([pthread_rwlock_rdlock requested but not found])])
AC_DEFINE([USE_PTHREAD_RWLOCK],[1],[Define if you want to use pthread rwlock implementation])
])
CRYPTO=OpenSSL
#
# OpenSSL/LibreSSL is mandatory
#
PKG_CHECK_MODULES([OPENSSL], [libssl libcrypto], [],
[AX_CHECK_OPENSSL([:],[AC_MSG_FAILURE([OpenSSL/LibreSSL not found])])])
AX_SAVE_FLAGS([openssl])
CFLAGS="$CFLAGS $OPENSSL_CFLAGS"
LIBS="$LIBS $OPENSSL_LIBS"
AC_MSG_CHECKING([for OpenSSL >= 1.0.0 or LibreSSL >= 2.7.0])
AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM([[#include <openssl/opensslv.h>]],
[[#if (!defined(LIBRESSL_VERSION_NUMBER) && (OPENSSL_VERSION_NUMBER < 0x1000000fL)) || \\
(defined(LIBRESSL_VERSION_NUMBER) && (LIBRESSL_VERSION_NUMBER < 0x02070000fL))
#error OpenSSL >= 1.0.0 or LibreSSL >= 2.7.0 required
#endif
]])],
[AC_MSG_RESULT([yes])],
[AC_MSG_FAILURE([not found])])
#
# Check for functions added in OpenSSL or LibreSSL
#
AC_CHECK_FUNCS([OPENSSL_init_ssl OPENSSL_init_crypto])
AC_CHECK_FUNCS([CRYPTO_zalloc])
AC_CHECK_FUNCS([EVP_CIPHER_CTX_new EVP_CIPHER_CTX_free])
AC_CHECK_FUNCS([EVP_MD_CTX_new EVP_MD_CTX_free EVP_MD_CTX_reset])
AC_CHECK_FUNCS([HMAC_CTX_new HMAC_CTX_free HMAC_CTX_reset HMAC_CTX_get_md])
AC_CHECK_FUNCS([SSL_read_ex SSL_peek_ex SSL_write_ex])
AC_CHECK_FUNCS([BIO_read_ex BIO_write_ex])
AC_CHECK_FUNCS([SSL_CTX_up_ref])
AC_CHECK_FUNCS([SSL_CTX_set_min_proto_version])
#
# Check for algorithm support in OpenSSL
#
AC_CHECK_FUNCS([ECDSA_sign ECDSA_verify], [:],
[AC_MSG_FAILURE([ECDSA support in OpenSSL is mandatory.])])
AC_MSG_CHECKING([for ECDSA P-256 support])
AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM([[#include <openssl/evp.h>
#include <openssl/ec.h>]],
[[EC_KEY *key = EC_KEY_new_by_curve_name(NID_X9_62_prime256v1);]])],
[AC_MSG_RESULT([yes])],
[AC_MSG_FAILURE([not found. ECDSA P-256 support in OpenSSL is mandatory.])])
AC_MSG_CHECKING([for ECDSA P-384 support])
AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM([[#include <openssl/evp.h>
#include <openssl/ec.h>]],
[[EC_KEY *key = EC_KEY_new_by_curve_name(NID_secp384r1);]])],
[AC_MSG_RESULT([yes])],
[AC_MSG_FAILURE([not found. ECDSA P-384 support in OpenSSL is mandatory.])])
AC_MSG_CHECKING([for Ed25519 support])
AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM([[#include <openssl/evp.h>
#include <openssl/ec.h>]],
[[EC_KEY *key = EC_KEY_new_by_curve_name(NID_ED25519);]])],
[AC_DEFINE([HAVE_OPENSSL_ED25519], [1], [define if OpenSSL supports Ed25519])
AC_MSG_RESULT([yes])],
[AC_MSG_RESULT([no])])
AC_MSG_CHECKING([for Ed448 support])
AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM([[#include <openssl/evp.h>
#include <openssl/ec.h>]],
[[EC_KEY *key = EC_KEY_new_by_curve_name(NID_ED448);]])],
[AC_DEFINE([HAVE_OPENSSL_ED448], [1], [define if OpenSSL supports Ed448])
AC_MSG_RESULT([yes])],
[AC_MSG_RESULT([no])])
#
# Check for OpenSSL SHA-1 support
#
AC_CHECK_FUNCS([EVP_sha1], [:],
[AC_MSG_FAILURE([SHA-1 support in OpenSSL is mandatory.])])
#
# Check for OpenSSL SHA-2 support
#
AC_CHECK_FUNCS([EVP_sha224 EVP_sha256 EVP_sha384 EVP_sha512], [:],
[AC_MSG_FAILURE([SHA-2 support in OpenSSL is mandatory.])])
#
# Check for OpenSSL AES support
#
AC_CHECK_FUNCS([EVP_aes_128_ecb EVP_aes_192_ecb EVP_aes_256_ecb], [:],
[AC_MSG_FAILURE([AES support in OpenSSL is mandatory.])])
#
# Check for OpenSSL 1.1.x/LibreSSL functions
#
AC_CHECK_FUNCS([DH_get0_key ECDSA_SIG_get0 RSA_set0_key])
AC_CHECK_FUNCS([TLS_server_method TLS_client_method])
#
# Check whether FIPS mode is available and whether we should enable it
#
# FIPS is not included in pairwise testing as the relevant Docker image
# does not support FIPS mode.
#
# [pairwise: skip]
AC_ARG_ENABLE([fips-mode],
[AS_HELP_STRING([--enable-fips-mode],
[enable FIPS mode in OpenSSL library [default=no]])],
[], [enable_fips_mode="no"])
AC_MSG_CHECKING([whether to enable FIPS mode in OpenSSL library])
AS_CASE([$enable_fips_mode],
[yes], [AC_MSG_RESULT([yes])
AC_CHECK_FUNCS([FIPS_mode],
[], [AC_MSG_FAILURE([OpenSSL FIPS mode requested but not available.])])],
[no], [AC_MSG_RESULT([no])])
AX_RESTORE_FLAGS([openssl])
AC_SUBST([OPENSSL_CFLAGS])
AC_SUBST([OPENSSL_LIBS])
#
# was --enable-native-pkcs11 specified?
#
# [pairwise: --enable-native-pkcs11, --disable-native-pkcs11]
AC_ARG_ENABLE([native-pkcs11],
AS_HELP_STRING([--enable-native-pkcs11],
[use native PKCS11 for public-key crypto [default=no]]),
[:], [enable_native_pkcs11="no"])
AC_MSG_CHECKING([for PKCS11 for Public-Key Cryptography])
AS_CASE([$enable_native_pkcs11],
[no],[AC_MSG_RESULT([no])],
[yes],[CRYPTO=pkcs11
AC_MSG_RESULT([yes])
AC_CHECK_FUNCS([getpassphrase])
])
AM_CONDITIONAL([HAVE_PKCS11], [test "$CRYPTO" = "pkcs11"])
AC_SUBST([CRYPTO])
AS_CASE([$CRYPTO],
[pkcs11],[AC_DEFINE([USE_PKCS11], [1], [define if PKCS11 is used for Public-Key Cryptography])],
[AC_DEFINE([USE_OPENSSL], [1], [define if OpenSSL is used for Public-Key Cryptography])])
#
# was --with-pkcs11 specified?
#
# [pairwise: skip]
AC_ARG_WITH([pkcs11],
[AS_HELP_STRING([--with-pkcs11[=PATH]],
[Build with PKCS11 support [no|path] (PATH is for the PKCS11 provider)])],
[:], [with_pkcs11="undefined"])
AS_CASE([$with_pkcs11],
[yes|auto],[AC_MSG_ERROR([--with-pkcs11 needs explicit path to the PKCS11 library])],
[no|undefined],[with_pkcs11="undefined"])
AC_DEFINE_UNQUOTED([PK11_LIB_LOCATION], ["$with_pkcs11"], [define the default PKCS11 library path])
AC_CHECK_FUNCS([clock_gettime])
# [pairwise: --with-gssapi=yes, --with-gssapi=auto, --without-gssapi]
AC_ARG_WITH([gssapi],
[AS_HELP_STRING([--with-gssapi=[PATH|[/path/]krb5-config]],
[Specify path for system-supplied GSSAPI
[default=auto]])],
[], [with_gssapi="auto"])
KRB5_CONFIG=
AS_CASE([$with_gssapi],
[no],[AC_MSG_CHECKING([for GSSAPI support])
AC_MSG_RESULT([no])],
[yes],[AC_PATH_PROG([KRB5_CONFIG], [krb5-config])
AS_IF([test -z "$KRB5_CONFIG"],
[AC_MSG_ERROR([krb5-config required but not found])])],
[auto],[AC_PATH_PROG([KRB5_CONFIG], [krb5-config])],
[*krb5-config*],[KRB5_CONFIG="$with_gssapi"],
[AC_MSG_ERROR([--with-gssapi requires yes|no|auto|/path/to/krb5-config])])
GSSAPI_CFLAGS=
GSSAPI_LIBS=
KRB5_CFLAGS=
KRB5_LIBS=
AS_IF([test -n "$KRB5_CONFIG"],
[AC_MSG_CHECKING([for gssapi libraries])
AX_SAVE_FLAGS([gssapi])
GSSAPI_CFLAGS=`"$KRB5_CONFIG" --cflags gssapi`
GSSAPI_LIBS=`"$KRB5_CONFIG" --libs gssapi`
CFLAGS="$CFLAGS $GSSAPI_CFLAGS"
LIBS="$LIBS $GSSAPI_LIBS"
AC_MSG_RESULT([$GSSAPI_CFLAGS $GSSAPI_LIBS])
AC_CHECK_HEADERS([gssapi/gssapi.h], [],
[AC_CHECK_HEADERS([gssapi.h], [],
[AC_MSG_ERROR([neither gssapi/gssapi.h nor gssapi.h found])])])
AC_CHECK_HEADERS([gssapi/gssapi_krb5.h],
[AC_CHECK_HEADERS([gssapi_krb5.h], []
[AC_MSG_ERROR([neither gssapi/gssapi_krb5.h nor gssapi_krb5.h found])])])
AC_CHECK_FUNCS([gss_acquire_cred],[],
[AC_MSG_ERROR([linking with $GSSAPI_LIBS does not work])])
AX_RESTORE_FLAGS([gssapi])
AC_MSG_CHECKING([for krb5 libraries])
AX_SAVE_FLAGS([krb5])
KRB5_CFLAGS=`"$KRB5_CONFIG" --cflags krb5`
KRB5_LIBS=`$KRB5_CONFIG --libs krb5`
CFLAGS="$CFLAGS $KRB5_CFLAGS"
LIBS="$CFLAGS $KRB5_LIBS"
AC_MSG_RESULT([$KRB5_CFLAGS $KRB5_LIBS])
AC_CHECK_HEADERS([krb5/krb5.h], [],
[AC_CHECK_HEADERS([krb5.h], [],
[AC_MSG_ERROR([neither krb5/krb5.h nor krb5 found])])])
AC_CHECK_FUNCS([krb5_init_context], [],
[AC_MSG_ERROR([linking with $KRB5_LIBS failed])])
AX_RESTORE_FLAGS([krb5])
AC_DEFINE([HAVE_GSSAPI], [1], [Define to 1 if you have the Kerberos Framework available])
# kludge to silence compiler warnings which recommend use of GSS.framework on macOS
AS_CASE([$host],[*-darwin*],[CFLAGS="$CFLAGS -Wno-deprecated-declarations"])])
AM_CONDITIONAL([HAVE_GSSAPI], [test -n "$GSSAPI_LIBS"])
AC_SUBST([GSSAPI_CFLAGS])
AC_SUBST([GSSAPI_LIBS])
AC_SUBST([KRB5_CFLAGS])
AC_SUBST([KRB5_LIBS])
#
# was --with-lmdb specified?
#
# [pairwise: --with-lmdb=auto, --with-lmdb=yes, --without-lmdb]
AC_ARG_WITH([lmdb],
[AS_HELP_STRING([--with-lmdb=@<:@PATH@:>@],
[use LMDB library @<:@default=auto@:>@, optionally specify the prefix for lmdb library])],
[:],
[with_lmdb="auto"])
ac_lib_lmdb_found=no
AS_CASE([$with_lmdb],
[no],[],
[auto|yes], [PKG_CHECK_MODULES([LMDB], [lmdb],
[ac_lib_lmdb_found=yes],
[for ac_lib_lmdb_path in /usr /usr/local /opt /opt/local; do
AX_LIB_LMDB([$ac_lib_lmdb_path],
[ac_lib_lmdb_found=yes
break])
done
])],
[AX_LIB_LMDB([$with_lmdb],[ac_lib_lmdb_found=yes])])
# don't fail when in automatic mode
AS_IF([test "$with_lmdb" = "auto" && test "$ac_lib_lmdb_found" = "no"],
[with_lmdb=no])
# hard fail when LMDB requested, but not found
AS_IF([test "$with_lmdb" != "no" && test "$ac_lib_lmdb_found" != "yes"],
[AC_MSG_ERROR([LMDB requested, but not found])])
AS_IF([test "$ac_lib_lmdb_found" = "yes"],
[AC_DEFINE([HAVE_LMDB], [1], [Use lmdb library])])
AC_SUBST([LMDB_CFLAGS])
AC_SUBST([LMDB_LIBS])
AM_CONDITIONAL([HAVE_LMDB], [test -n "$LMDB_LIBS"])
#
# was --with-libxml2 specified?
#
# [pairwise: --with-libxml2=auto, --with-libxml2=yes, --without-libxml2]
AC_ARG_WITH([libxml2],
[AS_HELP_STRING([--with-libxml2],
[build with libxml2 library [yes|no|auto] (default is auto)])],
[], [with_libxml2="auto"])
AS_CASE([$with_libxml2],
[no],[],
[auto],[PKG_CHECK_MODULES([LIBXML2], [libxml-2.0 >= 2.6.0],
[AC_DEFINE([HAVE_LIBXML2], [1], [Use libxml2 library])],
[:])],
[yes],[PKG_CHECK_MODULES([LIBXML2], [libxml-2.0 >= 2.6.0],
[AC_DEFINE([HAVE_LIBXML2], [1], [Use libxml2 library])])],
[AC_MSG_ERROR([Specifying libxml2 installation path is not supported, adjust PKG_CONFIG_PATH instead])])
AM_CONDITIONAL([HAVE_LIBXML2], [test -n "$LIBXML2_LIBS"])
#
# was --with-json-c specified?
#
# [pairwise: --with-json-c=detect, --with-json-c=yes, --without-json-c]
AC_ARG_WITH([json-c],
[AS_HELP_STRING([--with-json-c],
[build with json-c library [yes|no|detect] (default is detect)])],
[], [with_json_c="detect"])
AS_CASE([$with_json_c],
[no],[],
[detect],[PKG_CHECK_MODULES([JSON_C], [json-c >= 0.11],
[AC_DEFINE([HAVE_JSON_C], [1], [Use json-c library])],
[:])],
[yes],[PKG_CHECK_MODULES([JSON_C], [json-c >= 0.11],
[AC_DEFINE([HAVE_JSON_C], [1], [Use json-c library])])],
[AC_MSG_ERROR([Specifying json-c installation path is not supported, adjust PKG_CONFIG_PATH instead])]
)
AM_CONDITIONAL([HAVE_JSON_C], [test -n "$JSON_C_LIBS"])
AC_SUBST([JSON_C_CFLAGS])
AC_SUBST([JSON_C_LIBS])
#
# was --with-zlib specified?
#
# [pairwise: --with-zlib=auto, --with-zlib=yes, --without-zlib]
AC_ARG_WITH([zlib],
[AS_HELP_STRING([--with-zlib],
[build with zlib for HTTP compression
[default=yes]])],
[], with_zlib="auto")
AS_CASE([$with_zlib],
[no],[],
[auto],[PKG_CHECK_MODULES([ZLIB], [zlib],
[AC_DEFINE([HAVE_ZLIB], [1], [Use zlib library])],
[:])],
[yes],[PKG_CHECK_MODULES([ZLIB], [zlib],
[AC_DEFINE([HAVE_ZLIB], [1], [Use zlib library])])],
[AC_MSG_ERROR([Specifying zlib installation path is not supported, adjust PKG_CONFIG_PATH instead])])
AC_SUBST([ZLIB_CFLAGS])
AC_SUBST([ZLIB_LIBS])
#
# Check if the system supports glibc-compatible backtrace() function.
#
AC_CHECK_HEADERS([execinfo.h],
[AC_SEARCH_LIBS([backtrace], [execinfo],
[AC_CHECK_FUNCS([backtrace backtrace_symbols])])])
AM_CONDITIONAL([HAVE_BACKTRACE], [test "$ac_cv_func_backtrace" = "yes"])
#
# We do the IPv6 compilation checking after libtool so that we can put
# the right suffix on the files.
#
AC_MSG_CHECKING([for IPv6 structures])
AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM(
[[
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
]],
[[
struct sockaddr_in6 sin6;
struct in6_addr in6;
struct in6_pktinfo in6_pi;
struct sockaddr_storage storage;
in6 = in6addr_any;
in6 = in6addr_loopback;
sin6.sin6_scope_id = 0;
return (0);
]])],
[AC_MSG_RESULT([yes])],
[AC_MSG_FAILURE([IPv6 support is mandatory])])
#
# Allow forcibly disabling TCP Fast Open support as autodetection might yield
# confusing results on some systems (e.g. FreeBSD; see set_tcp_fastopen()
# comment in lib/isc/unix/socket.c).
#
# [pairwise: --enable-tcp-fastopen, --disable-tcp-fastopen]
AC_ARG_ENABLE([tcp_fastopen],
[AS_HELP_STRING([--disable-tcp-fastopen],
[disable TCP Fast Open support [default=yes]])],
[], [enable_tcp_fastopen="yes"])
AS_IF([test "$enable_tcp_fastopen" = "yes"],
[AC_DEFINE([ENABLE_TCP_FASTOPEN], [1], [define if you want TCP_FASTOPEN enabled if available])])
#
# Check for some other useful functions that are not ever-present.
#
AC_CHECK_FUNCS([strlcpy strlcat])
#
# Check for readline support
#
# editline is not included in pairwise testing as the library
# is not present in the relevant Docker image.