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knot/configure.ac
Daniel Baumann 70063ca008
Adding upstream version 3.4.6.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
2025-06-21 13:47:52 +02:00

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AC_PREREQ([2.69])
m4_define([knot_VERSION_MAJOR], 3)dnl
m4_define([knot_VERSION_MINOR], 4)dnl
m4_define([knot_VERSION_PATCH], 6)dnl Leave empty if the master branch!
m4_include([m4/knot-version.m4])
AC_INIT([knot], [knot_PKG_VERSION], [knot-dns@labs.nic.cz])
AM_INIT_AUTOMAKE([foreign std-options subdir-objects no-dist-gzip dist-xz -Wall -Werror])
AM_SILENT_RULES([yes])
AC_CONFIG_SRCDIR([src/knot])
AC_CONFIG_HEADERS([src/config.h])
AC_CONFIG_MACRO_DIR([m4])
AC_USE_SYSTEM_EXTENSIONS
AC_CANONICAL_HOST
# Update library versions
# https://www.gnu.org/software/libtool/manual/html_node/Updating-version-info.html
KNOT_LIB_VERSION([libknot], 15, 0, 0)
KNOT_LIB_VERSION([libdnssec], 9, 0, 0)
KNOT_LIB_VERSION([libzscanner], 4, 0, 0)
AC_SUBST([KNOT_VERSION_MAJOR], knot_VERSION_MAJOR)
AC_SUBST([KNOT_VERSION_MINOR], knot_VERSION_MINOR)
AC_SUBST([KNOT_VERSION_PATCH], knot_VERSION_PATCH)
AC_CONFIG_FILES([src/libknot/version.h
src/libdnssec/version.h
src/libzscanner/version.h])
# Automatically update release date based on NEWS
AC_PROG_SED
release_date=$($SED -n 's/^Knot DNS .* (\(.*\))/\1/p;q;' ${srcdir}/NEWS)
AC_SUBST([RELEASE_DATE], $release_date)
# Set compiler compatibility flags
AC_PROG_CC
AC_PROG_CPP_WERROR
# Set default CFLAGS
CFLAGS="$CFLAGS -Wall -Wshadow -Werror=format-security -Werror=implicit -Werror=attributes -Wstrict-prototypes"
AX_CHECK_COMPILE_FLAG("-fpredictive-commoning", [CFLAGS="$CFLAGS -fpredictive-commoning"], [], "-Werror")
AX_CHECK_LINK_FLAG(["-Wl,--exclude-libs,ALL"], [ldflag_exclude_libs="-Wl,--exclude-libs,ALL"], [ldflag_exclude_libs=""], "")
AC_SUBST([LDFLAG_EXCLUDE_LIBS], $ldflag_exclude_libs)
# Get processor byte ordering
AC_C_BIGENDIAN([endianity=big-endian], [endianity=little-endian])
AS_IF([test "$endianity" = "little-endian"],[
AC_DEFINE([ENDIANITY_LITTLE], [1], [System is little-endian.])])
# Check if an archiver is available
m4_ifdef([AM_PROG_AR], [AM_PROG_AR])
AC_PROG_INSTALL
# Initialize libtool
LT_INIT
# Build DLLs on Cygwin/MSYS2
AS_CASE([$host_os],
[cygwin* | msys*], [LT_NO_UNDEFINED="-no-undefined"]
)
AC_SUBST(LT_NO_UNDEFINED)
# Use pkg-config
PKG_PROG_PKG_CONFIG
m4_ifdef([PKG_INSTALLDIR], [PKG_INSTALLDIR], [AC_SUBST([pkgconfigdir], ['${libdir}/pkgconfig'])])
AC_CONFIG_FILES([src/knotd.pc
src/libknot.pc
src/libdnssec.pc
src/libzscanner.pc
])
# Default directories
knot_prefix=$ac_default_prefix
AS_IF([test "$prefix" != NONE], [knot_prefix=$prefix])
run_dir="${localstatedir}/run/knot"
AC_ARG_WITH([rundir],
AS_HELP_STRING([--with-rundir=path], [Path to run-time variable data (pid, sockets...). [default=LOCALSTATEDIR/run/knot]]),
[run_dir=$withval])
AC_SUBST(run_dir)
storage_dir="${localstatedir}/lib/knot"
AC_ARG_WITH([storage],
AS_HELP_STRING([--with-storage=path], [Default storage directory (slave zones, persistent data). [default=LOCALSTATEDIR/lib/knot]]),
[storage_dir=$withval])
AC_SUBST(storage_dir)
config_dir="${sysconfdir}/knot"
AC_ARG_WITH([configdir],
AS_HELP_STRING([--with-configdir=path], [Default directory for configuration. [default=SYSCONFDIR/knot]]),
[config_dir=$withval])
AC_SUBST(config_dir)
module_dir=
module_instdir="${libdir}/knot/modules-${KNOT_VERSION_MAJOR}.${KNOT_VERSION_MINOR}"
AC_ARG_WITH([moduledir],
AS_HELP_STRING([--with-moduledir=path], [Path to auto-loaded dynamic modules. [default not set]]),
[module_dir=$withval module_instdir=$module_dir])
AC_SUBST(module_instdir)
AC_SUBST(module_dir)
# Build Knot DNS daemon
AC_ARG_ENABLE([daemon],
AS_HELP_STRING([--disable-daemon], [Don't build Knot DNS main daemon]), [], [enable_daemon=yes])
AM_CONDITIONAL([HAVE_DAEMON], [test "$enable_daemon" = "yes"])
# Build Knot DNS modules
AC_ARG_ENABLE([modules],
AS_HELP_STRING([--disable-modules], [Don't build Knot DNS modules]), [], [enable_modules=yes])
# Build Knot DNS utilities
AC_ARG_ENABLE([utilities],
AS_HELP_STRING([--disable-utilities], [Don't build Knot DNS utilities]), [], [enable_utilities=yes])
AM_CONDITIONAL([HAVE_UTILS], [test "$enable_utilities" = "yes"])
AM_CONDITIONAL([HAVE_LIBUTILS], test "$enable_utilities" != "no" -o \
"$enable_daemon" != "no")
# Build Knot DNS documentation
AC_ARG_ENABLE([documentation],
AS_HELP_STRING([--disable-documentation], [Don't build Knot DNS documentation]), [], [enable_documentation=yes])
AS_IF([test "$enable_documentation" != "no"], [
AC_PATH_PROG([SPHINXBUILD], [sphinx-build], [false])
AS_IF([test "$SPHINXBUILD" != "false"], [
enable_documentation="man html epub"
AC_PATH_PROG([PDFLATEX], [pdflatex], [false])
AS_IF([test "$PDFLATEX" != "false"], [
enable_documentation="$enable_documentation pdf"
])
])
])
AM_CONDITIONAL([HAVE_DOCS], [test "$enable_documentation" != "no"])
AM_CONDITIONAL([HAVE_SPHINX], [test "$SPHINXBUILD" != "false"])
AM_CONDITIONAL([HAVE_PDFLATEX], test "$PDFLATEX" != "false")
######################
# Generic dependencies
######################
AC_ARG_ENABLE([fastparser],
AS_HELP_STRING([--disable-fastparser], [Disable use of fast zone parser]),
[], [AS_IF([test -d ".git"], [enable_fastparser=no], [enable_fastparser=yes])]
)
AM_CONDITIONAL([FAST_PARSER], [test "$enable_fastparser" = "yes"])
# GnuTLS crypto backend
PKG_CHECK_MODULES([gnutls], [gnutls >= 3.6.10], [
save_CFLAGS=$CFLAGS
save_LIBS=$LIBS
CFLAGS="$CFLAGS $gnutls_CFLAGS"
LIBS="$LIBS $gnutls_LIBS"
AC_CHECK_FUNC([gnutls_pkcs11_copy_pubkey], [enable_pkcs11=yes], [enable_pkcs11=no])
AS_IF([test "$enable_pkcs11" = yes],
[AC_DEFINE([ENABLE_PKCS11], [1], [PKCS #11 support available])])
AC_CHECK_DECL([GNUTLS_SIGN_EDDSA_ED448],
[AC_DEFINE([HAVE_ED448], [1], [GnuTLS ED448 support available])
enable_ed448=yes],
[enable_ed448=no],
[#include <gnutls/gnutls.h>])
AC_CHECK_FUNC([gnutls_early_cipher_get],
[AC_DEFINE([HAVE_GNUTLS_QUIC], [1], [gnutls_early_cipher_get available])
gnutls_quic=yes], [gnutls_quic=no])
CFLAGS=$save_CFLAGS
LIBS=$save_LIBS
])
AM_CONDITIONAL([ENABLE_PKCS11], [test "$enable_pkcs11" = "yes"])
AC_ARG_ENABLE([recvmmsg],
AS_HELP_STRING([--enable-recvmmsg=auto|yes|no], [enable recvmmsg() network API [default=auto]]),
[], [enable_recvmmsg=auto])
AS_CASE([$enable_recvmmsg],
[auto|yes],[
AC_CHECK_FUNC([recvmmsg],
[AC_CHECK_FUNC([sendmmsg],[enable_recvmmsg=yes],[enable_recvmmsg=no])],
[enable_recvmmsg=no])],
[no],[],
[*], [AC_MSG_ERROR([Invalid value of --enable-recvmmsg.]
)])
AS_IF([test "$enable_recvmmsg" = yes],[
AC_DEFINE([ENABLE_RECVMMSG], [1], [Use recvmmsg().])])
# XDP support
AC_ARG_ENABLE([xdp],
AS_HELP_STRING([--enable-xdp=auto|yes|no], [enable eXpress Data Path [default=auto]]),
[], [enable_xdp=auto])
PKG_CHECK_MODULES([libbpf], [libbpf],
[save_LIBS=$LIBS
LIBS="$LIBS $libbpf_LIBS"
AC_CHECK_FUNC([bpf_object__find_map_by_offset], [libbpf1=no], [libbpf1=yes])
LIBS=$save_LIBS
have_libbpf=yes],
[have_libbpf=no]
)
AS_CASE([$enable_xdp],
[auto], [AS_IF([test "$have_libbpf" = "yes"], [enable_xdp=yes], [enable_xdp=no])],
[yes], [AS_IF([test "$have_libbpf" = "yes"], [enable_xdp=yes], [AC_MSG_ERROR([libbpf not available])])],
[no], [],
[*], [AC_MSG_ERROR([Invalid value of --enable-xdp.])]
)
AM_CONDITIONAL([ENABLE_XDP], [test "$enable_xdp" != "no"])
AS_IF([test "$enable_xdp" = "yes"], [
PKG_CHECK_MODULES([libxdp], [libxdp], [enable_xdp=libxdp], [enable_xdp=yes])
AS_IF([test "$enable_xdp" = "libxdp"],
[AC_DEFINE([USE_LIBXDP], [1], [Use libxdp.])
libbpf_CFLAGS="$libbpf_CFLAGS $libxdp_CFLAGS"
libbpf_LIBS="$libbpf_LIBS $libxdp_LIBS"],
[AS_IF([test "$libbpf1" = "yes"], [AC_MSG_ERROR([libxdp not available])])]
)]
)
AC_SUBST([libbpf_CFLAGS])
AC_SUBST([libbpf_LIBS])
AS_IF([test "$enable_xdp" != "no"],[
AC_DEFINE([ENABLE_XDP], [1], [Use eXpress Data Path.])])
# Reuseport support
AS_CASE([$host_os],
[freebsd*], [reuseport_opt=SO_REUSEPORT_LB],
[*], [reuseport_opt=SO_REUSEPORT],
)
AC_ARG_ENABLE([reuseport],
AS_HELP_STRING([--enable-reuseport=auto|yes|no],
[enable SO_REUSEPORT(_LB) support [default=auto]]),
[], [enable_reuseport=auto]
)
AS_CASE([$enable_reuseport],
[auto], [
AS_CASE([$host_os],
[freebsd*|linux*], [AC_CHECK_DECL([$reuseport_opt],
[enable_reuseport=yes],
[enable_reuseport=no],
[#include <sys/socket.h>
])],
[*], [enable_reuseport=no]
)],
[yes], [AC_CHECK_DECL([$reuseport_opt], [],
[AC_MSG_ERROR([SO_REUSEPORT(_LB) not supported.])],
[#include <sys/socket.h>
])],
[no], [],
[*], [AC_MSG_ERROR([Invalid value of --enable-reuseport.])]
)
AS_IF([test "$enable_reuseport" = yes],[
AC_DEFINE([ENABLE_REUSEPORT], [1], [Use SO_REUSEPORT(_LB).])])
#########################################
# Dependencies needed for Knot DNS daemon
#########################################
# Systemd integration
AC_ARG_ENABLE([systemd],
AS_HELP_STRING([--enable-systemd=auto|yes|no], [enable systemd integration [default=auto]]),
[enable_systemd="$enableval"], [enable_systemd=auto])
AC_ARG_ENABLE([dbus],
AS_HELP_STRING([--enable-dbus=auto|systemd|libdbus|no], [enable D-bus support [default=auto]]),
[enable_dbus="$enableval"], [enable_dbus=auto])
AS_IF([test "$enable_daemon" = "yes"],[
AS_IF([test "$enable_systemd" != "no"],[
AS_CASE([$enable_systemd],
[auto],[PKG_CHECK_MODULES([systemd], [libsystemd], [enable_systemd=yes], [
PKG_CHECK_MODULES([systemd], [libsystemd-daemon libsystemd-journal], [enable_systemd=yes], [enable_systemd=no])])],
[yes],[PKG_CHECK_MODULES([systemd], [libsystemd], [], [
PKG_CHECK_MODULES([systemd], [libsystemd-daemon libsystemd-journal])])],
[*],[AC_MSG_ERROR([Invalid value of --enable-systemd.])])
])
AS_IF([test "$enable_systemd" = "yes"],[
AC_DEFINE([ENABLE_SYSTEMD], [1], [Use systemd integration.])])
AS_IF([test "$enable_dbus" != "no"],[
AS_CASE([$enable_dbus],
[auto],[AS_IF([test "$enable_systemd" = "yes"],
[AC_DEFINE([ENABLE_DBUS_SYSTEMD], [1], [systemd D-Bus available])
enable_dbus=systemd],
[PKG_CHECK_MODULES([libdbus], [dbus-1],
[AC_DEFINE([ENABLE_DBUS_LIBDBUS], [1], [libdbus D-Bus available])
enable_dbus=libdbus],
[enable_dbus=no])])],
[systemd],[AS_IF([test "$enable_systemd" = "yes"],
[AC_DEFINE([ENABLE_DBUS_SYSTEMD], [1], [systemd D-Bus available])
enable_dbus=systemd],
[AC_MSG_ERROR([systemd >= 221 not available.])])],
[libdbus],[PKG_CHECK_MODULES([libdbus], [dbus-1],
[AC_DEFINE([ENABLE_DBUS_LIBDBUS], [1], [libdbus D-Bus available])
enable_dbus=libdbus],
[AC_MSG_ERROR([libdbus not available.])])],
[no],[enable_dbus=no],
[*],[AC_MSG_ERROR([Invalid value of --enable-dbus.])])
])
]) dnl enable_daemon
# Socket polling method
socket_polling=
AC_ARG_WITH([socket-polling],
AS_HELP_STRING([--with-socket-polling=auto|poll|epoll|kqueue|libkqueue],
[Use specific socket polling method [default=auto]]),
[socket_polling=$withval], [socket_polling=auto]
)
AS_CASE([$socket_polling],
[auto], [AC_CHECK_FUNCS([kqueue],
[AC_DEFINE([HAVE_KQUEUE], [1], [kqueue available])
socket_polling=kqueue],
[AC_CHECK_FUNCS([epoll_create],
[AC_DEFINE([HAVE_EPOLL], [1], [epoll available])
socket_polling=epoll],
[socket_polling=poll])])],
[poll], [socket_polling=poll],
[epoll], [AC_CHECK_FUNCS([epoll_create],
[AC_DEFINE([HAVE_EPOLL], [1], [epoll available])
socket_polling=epoll],
[AC_MSG_ERROR([epoll not available.])])],
[kqueue], [AC_CHECK_FUNCS([kqueue],
[AC_DEFINE([HAVE_KQUEUE], [1], [kqueue available])
socket_polling=kqueue],
[AC_MSG_ERROR([kqueue not available.])])],
[libkqueue], [PKG_CHECK_MODULES([libkqueue], [libkqueue],
[AC_DEFINE([HAVE_KQUEUE], [1], [libkqueue available])
socket_polling=libkqueue],
[AC_MSG_ERROR([libkqueue not available.])])],
[*], [AC_MSG_ERROR([Invalid value of --socket-polling.])]
)
# Alternative memory allocator
malloc_LIBS=
AC_ARG_WITH([memory-allocator],
AS_HELP_STRING([--with-memory-allocator=auto|LIBRARY],
[Use specific memory allocator for the server (e.g. jemalloc) [default=auto]]),
AS_CASE([$withval],
[auto], [],
[*], [malloc_LIBS="-l$withval"]
)
with_memory_allocator=[$withval]
)
AS_IF([test "$with_memory_allocator" = ""], [with_memory_allocator="auto"])
AC_SUBST([malloc_LIBS])
AS_IF([test "$enable_daemon" = "yes"],[
PKG_CHECK_MODULES([liburcu], [liburcu], [], [
AC_MSG_ERROR([liburcu not found])
])
])
static_modules=""
shared_modules=""
static_modules_declars=""
static_modules_init=""
doc_modules=""
KNOT_MODULE([authsignal], "yes")
KNOT_MODULE([cookies], "yes")
KNOT_MODULE([dnsproxy], "yes", "non-shareable")
KNOT_MODULE([dnstap], "no")
KNOT_MODULE([geoip], "yes")
KNOT_MODULE([noudp], "yes")
KNOT_MODULE([onlinesign], "yes", "non-shareable")
KNOT_MODULE([probe], "yes")
KNOT_MODULE([queryacl], "yes")
KNOT_MODULE([rrl], "yes")
KNOT_MODULE([stats], "yes")
KNOT_MODULE([synthrecord], "yes")
KNOT_MODULE([whoami], "yes")
AC_SUBST([STATIC_MODULES_DECLARS], [$(printf "$static_modules_declars")])
AM_SUBST_NOTMAKE([STATIC_MODULES_DECLARS])
AC_SUBST([STATIC_MODULES_INIT], [$(printf "$static_modules_init")])
AM_SUBST_NOTMAKE([STATIC_MODULES_INIT])
AC_SUBST([DOC_MODULES], [$(printf "$doc_modules")])
AM_SUBST_NOTMAKE([DOC_MODULES])
# Check for Dnstap
AC_ARG_ENABLE([dnstap],
AS_HELP_STRING([--enable-dnstap], [Enable dnstap support for kdig (requires fstrm, protobuf-c)]),
[], [enable_dnstap=no])
AS_IF([test "$enable_dnstap" != "no" -o "$STATIC_MODULE_dnstap" != "no" -o "$SHARED_MODULE_dnstap" != "no"],[
AC_PATH_PROG([PROTOC_C], [protoc-c])
AS_IF([test -z "$PROTOC_C"],[
AC_MSG_ERROR([The protoc-c program was not found. Please install protobuf-c!])
])
PKG_CHECK_MODULES([libfstrm], [libfstrm])
PKG_CHECK_MODULES([libprotobuf_c], [libprotobuf-c >= 1.0.0])
AC_SUBST([DNSTAP_CFLAGS], ["$libfstrm_CFLAGS $libprotobuf_c_CFLAGS"])
AC_SUBST([DNSTAP_LIBS], ["$libfstrm_LIBS $libprotobuf_c_LIBS"])
])
AS_IF([test "$enable_dnstap" != "no"],[
AC_DEFINE([USE_DNSTAP], [1], [Define to 1 to enable dnstap support for kdig])
])
AM_CONDITIONAL([HAVE_DNSTAP], test "$enable_dnstap" != "no")
AM_CONDITIONAL([HAVE_LIBDNSTAP], test "$enable_dnstap" != "no" -o \
"$STATIC_MODULE_dnstap" != "no" -o \
"$SHARED_MODULE_dnstap" != "no")
# MaxMind DB for the GeoIP module
AC_ARG_ENABLE([maxminddb],
AS_HELP_STRING([--enable-maxminddb=auto|yes|no], [enable MaxMind DB [default=auto]]),
[enable_maxminddb="$enableval"], [enable_maxminddb=auto])
AS_IF([test "$enable_daemon" = "no"],[enable_maxminddb=no])
AS_CASE([$enable_maxminddb],
[no],[],
[auto],[PKG_CHECK_MODULES([libmaxminddb], [libmaxminddb], [enable_maxminddb=yes], [enable_maxminddb=no])],
[yes], [PKG_CHECK_MODULES([libmaxminddb], [libmaxminddb])],
[*],[
save_CFLAGS="$CFLAGS"
save_LIBS="$LIBS"
AS_IF([test "$enable_maxminddb" != ""],[
LIBS="$LIBS -L$enable_maxminddb"
CFLAGS="$CFLAGS -I$enable_maxminddb/include"
])
AC_SEARCH_LIBS([MMDB_open], [maxminddb], [
AS_IF([test "$enable_maxminddb" != ""], [
libmaxminddb_CFLAGS="-I$enable_maxminddb/include"
libmaxminddb_LIBS="-L$enable_maxminddb -lmaxminddb"
],[
libmaxminddb_CFLAGS=""
libmaxminddb_LIBS="$ac_cv_search_MMDB_open"
])
],[AC_MSG_ERROR("not found in `$enable_maxminddb'")])
CFLAGS="$save_CFLAGS"
LIBS="$save_LIBS"
AC_SUBST([libmaxminddb_CFLAGS])
AC_SUBST([libmaxminddb_LIBS])
enable_maxminddb=yes
])
AS_IF([test "$enable_maxminddb" = yes], [AC_DEFINE([HAVE_MAXMINDDB], [1], [Define to 1 to enable MaxMind DB.])])
AM_CONDITIONAL([HAVE_MAXMINDDB], [test "$enable_maxminddb" = yes])
AC_ARG_WITH([lmdb],
[AS_HELP_STRING([--with-lmdb=DIR], [explicit location where to find LMDB])]
)
PKG_CHECK_MODULES([lmdb], [lmdb >= 0.9.15], [], [
save_CPPFLAGS=$CPPFLAGS
save_LIBS=$LIBS
have_lmdb=no
for try_lmdb in "$with_lmdb" "" "/usr/local" "/usr/pkg"; do
AS_IF([test -d "$try_lmdb"], [
lmdb_CFLAGS="-I$try_lmdb/include"
lmdb_LIBS="-L$try_lmdb/lib"
],[
lmdb_CFLAGS=""
lmdb_LIBS=""
])
CPPFLAGS="$save_CPPFLAGS $lmdb_CFLAGS"
LIBS="$save_LIBS $lmdb_LIBS"
AC_SEARCH_LIBS([mdb_txn_id], [lmdb], [
have_lmdb=yes
lmdb_LIBS="$lmdb_LIBS -llmdb"
AC_SUBST([lmdb_CFLAGS])
AC_SUBST([lmdb_LIBS])
break
])
# do not cache result of AC_SEARCH_LIBS test
unset ac_cv_search_mdb_txn_id
done
CPPFLAGS="$save_CPPFLAGS"
LIBS="$save_LIBS"
AS_IF([test "$have_lmdb" = "no"], [
AC_MSG_ERROR([lmdb library not found])
])
])
# LMDB mapping sizes
conf_mapsize_default=500
AC_ARG_WITH([conf_mapsize],
AS_HELP_STRING([--with-conf-mapsize=NUM], [Configuration DB mapsize in MiB [default=$conf_mapsize_default]]),
[conf_mapsize=$withval],[conf_mapsize=$conf_mapsize_default])
AS_CASE([$conf_mapsize],
[yes],[conf_mapsize=$conf_mapsize_default],
[no], [AC_MSG_ERROR([conf_mapsize must be a number])],
[*], [AS_IF([test $conf_mapsize != $(( $conf_mapsize + 0 ))],
[AC_MSG_ERROR(conf_mapsize must be an integer number)])])
AC_DEFINE_UNQUOTED([CONF_MAPSIZE], [$conf_mapsize], [Configuration DB mapsize.])
AC_SUBST(conf_mapsize)
# libedit
AS_IF([test "$enable_daemon" = "yes" -o "$enable_utilities" = "yes"], [
PKG_CHECK_MODULES([libedit], [libedit], [with_libedit=yes], [
with_libedit=no
AC_CHECK_HEADER([histedit.h], [
# workaround for OpenBSD
AS_CASE([$host_os],
[openbsd*], [libedit_deps=-lcurses],
[libedit_deps=]
)
AC_CHECK_LIB([edit], [el_init], [
with_libedit=yes
libedit_CFLAGS=
libedit_LIBS="-ledit $libedit_deps"
], [], [$libedit_deps]
)
])
])
AS_IF([test "$with_libedit" != "yes"], [
AC_MSG_ERROR([libedit not found])
])
], [
with_libedit=no
libedit_CFLAGS=
libedit_LIBS=
])
# QUIC support
AC_ARG_ENABLE([quic],
AS_HELP_STRING([--enable-quic=auto|yes|no|embedded], [Support DoQ (needs libngtcp2 >= 0.17.0, gnutls >= 3.7.3) [default=auto]]),
[], [enable_quic=auto])
AS_CASE([$enable_quic],
[auto], [PKG_CHECK_MODULES([libngtcp2], [libngtcp2 >= 0.17.0 libngtcp2_crypto_gnutls], [enable_quic=yes], [enable_quic=no])],
[yes], [PKG_CHECK_MODULES([libngtcp2], [libngtcp2 >= 0.17.0 libngtcp2_crypto_gnutls], [enable_quic=yes],
AS_IF([test "$gnutls_quic" = "yes"],
[enable_quic=embedded
embedded_libngtcp2_CFLAGS="-I\$(top_srcdir)/src/contrib/libngtcp2 -I\$(top_srcdir)/src/contrib/libngtcp2/ngtcp2/lib"
embedded_libngtcp2_LIBS=$libelf_LIBS
libngtcp2_CFLAGS="-I\$(top_srcdir)/src/contrib/libngtcp2"],
[enable_quic=no
AC_MSG_WARN([gnutls >= 3.7.3 is required for QUIC])]))],
[embedded], [enable_quic=embedded
embedded_libngtcp2_CFLAGS="-I\$(top_srcdir)/src/contrib/libngtcp2 -I\$(top_srcdir)/src/contrib/libngtcp2/ngtcp2/lib"
embedded_libngtcp2_LIBS=$libelf_LIBS
libngtcp2_CFLAGS="-I\$(top_srcdir)/src/contrib/libngtcp2"],
[no], [],
[*], [AC_MSG_ERROR([Invalid value of --enable-quic.])]
)
AM_CONDITIONAL([EMBEDDED_LIBNGTCP2], [test "$enable_quic" = "embedded"])
AM_CONDITIONAL([ENABLE_QUIC], [test "$enable_quic" != "no"])
AC_SUBST([embedded_libngtcp2_CFLAGS])
AC_SUBST([embedded_libngtcp2_LIBS])
AC_SUBST([libngtcp2_CFLAGS])
AC_SUBST([libngtcp2_LIBS])
AS_IF([test "$enable_quic" != "no"], [
AC_DEFINE([ENABLE_QUIC], [1], [Define to 1 to enable DoQ support using libngtcp2 and GnuTLS])])
############################################
# Dependencies needed for Knot DNS utilities
############################################
dnl Check for libidn2.
AC_ARG_WITH(libidn,
AS_HELP_STRING([--with-libidn=[DIR]], [Support IDN (needs GNU libidn2)]),
with_libidn=$withval,
with_libidn=yes
)
dnl Check for libnghttp2.
AC_ARG_WITH(libnghttp2,
AS_HELP_STRING([--with-libnghttp2=[DIR]], [Support DoH (needs libnghttp2)]),
with_libnghttp2=$withval,
with_libnghttp2=yes
)
AS_IF([test "$enable_utilities" = "yes"], [
AS_IF([test "$with_libidn" != "no"], [
PKG_CHECK_MODULES([libidn2], [libidn2 >= 2.0.0], [
with_libidn=libidn2
AC_DEFINE([LIBIDN], [1], [Define to 1 to enable IDN support])
], [
with_libidn=no
AC_MSG_WARN([libidn2 not found])
])
])
AS_IF([test "$with_libnghttp2" != "no"], [
PKG_CHECK_MODULES([libnghttp2], [libnghttp2], [
with_libnghttp2=libnghttp2
AC_DEFINE([LIBNGHTTP2], [1], [Define to 1 to enable DoH support])
], [
with_libnghttp2=no
AC_MSG_WARN([libnghttp2 not found])
])
])
AS_IF([test "$enable_xdp" != "no"], [
PKG_CHECK_MODULES([libmnl], [libmnl], [], [
AC_MSG_ERROR([libmnl not found])
])
])
]) # Knot DNS utilities dependencies
AC_ARG_ENABLE([cap-ng],
AS_HELP_STRING([--enable-cap-ng=auto|no], [enable POSIX capabilities [default=auto]]),
[enable_cap_ng="$enableval"], [enable_cap_ng=auto])
AS_IF([test "$enable_daemon" = "yes"], [
AS_IF([test "$enable_cap_ng" != "no"],[
PKG_CHECK_MODULES([cap_ng], [cap-ng], [enable_cap_ng=yes], [
enable_cap_ng=no
AC_CHECK_HEADER([cap-ng.h], [
save_LIBS="$LIBS"
AC_SEARCH_LIBS([capng_apply], [cap-ng], [
AS_IF([test "$ac_cv_search_capng_apply" != "none required"],
[cap_ng_LIBS="$ac_cv_search_capng_apply"], [cap_ng_LIBS=])
AC_SUBST([cap_ng_LIBS])
enable_cap_ng=yes
])
LIBS="$save_LIBS"
])
])
], [
enable_cap_ng=no
cap_ng_LIBS=
])])
AS_IF([test "$enable_cap_ng" = yes],
[AC_DEFINE([ENABLE_CAP_NG], [1], [POSIX capabilities available])]
)
save_LIBS="$LIBS"
AC_SEARCH_LIBS([pthread_create], [pthread], [
AS_IF([test "$ac_cv_search_pthread_create" != "none required"],
[pthread_LIBS="$ac_cv_search_pthread_create"], [pthread_LIBS=])
AC_SUBST([pthread_LIBS])
],[
AC_MSG_ERROR([pthreads not found])
])
LIBS="$save_LIBS"
save_LIBS="$LIBS"
AC_SEARCH_LIBS([dlopen], [dl], [
AS_IF([test "$ac_cv_search_dlopen" != "none required"],
[dlopen_LIBS="$ac_cv_search_dlopen"], [dlopen_LIBS=])
AC_SUBST([dlopen_LIBS])
],[
AC_MSG_ERROR([dlopen not found])
])
LIBS="$save_LIBS"
save_LIBS="$LIBS"
AC_SEARCH_LIBS([pow], [m], [
AS_IF([test "$ac_cv_search_pow" != "none required"],
[math_LIBS="$ac_cv_search_pow"], [math_LIBS=])
AC_SUBST([math_LIBS])
],[
AC_MSG_ERROR([math not found])
])
LIBS="$save_LIBS"
save_LIBS="$LIBS"
AC_SEARCH_LIBS([pthread_setaffinity_np], [pthread], [
AC_DEFINE([HAVE_PTHREAD_SETAFFINITY_NP], [1],
[Define to 1 if you have the pthread_setaffinity_np function.])
])
LIBS="$save_LIBS"
# Checks for header files.
AC_HEADER_RESOLV
AC_CHECK_HEADERS_ONCE([pthread_np.h sys/uio.h bsd/string.h])
# Checks for optional library functions.
AC_CHECK_FUNCS([accept4 fgetln getline initgroups malloc_trim \
setgroups strlcat strlcpy sysctlbyname])
# Check for robust memory cleanup implementations.
AC_CHECK_FUNC([explicit_bzero], [
AC_DEFINE([HAVE_EXPLICIT_BZERO], [1], [explicit_bzero available])
explicit_bzero=yes], [explicit_bzero=no]
)
AC_CHECK_FUNC([explicit_memset], [
AC_DEFINE([HAVE_EXPLICIT_MEMSET], [1], [explicit_memset available])
explicit_memset=yes], [explicit_memset=no]
)
AM_CONDITIONAL([USE_GNUTLS_MEMSET], [test "$explicit_bzero" = "no" -a "$explicit_memset" = "no"])
# Check for mandatory library functions.
AC_CHECK_FUNC([vasprintf], [], [
AC_MSG_ERROR([vasprintf support in the libc is required])])
# Check for cpu_set_t/cpuset_t compatibility
AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <pthread.h>]], [[cpu_set_t set; CPU_ZERO(&set);]])],
[AC_DEFINE(HAVE_CPUSET_LINUX, 1, [Define if Linux-like cpu_set_t exists.])])
AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <pthread_np.h>]], [[cpuset_t set; CPU_ZERO(&set);]])],
[AC_DEFINE(HAVE_CPUSET_BSD, 1, [Define if FreeBSD-like cpuset_t exists.])])
AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <sched.h>]], [[cpuset_t* set = cpuset_create(); cpuset_destroy(set);]])],
[AC_DEFINE(HAVE_CPUSET_NETBSD, 1, [Define if cpuset_t and cpuset(3) exists.])])
# Check for a C11 or GCC-style '__atomic' compiler builtin atomic functions.
atomic_type="none"
AC_LINK_IFELSE(
[AC_LANG_PROGRAM([[#if (__STDC_VERSION__ < 201112L) || defined(__STDC_NO_ATOMICS__)
#error "No C11 atomics"
#endif
#include <stdatomic.h>]],
[[atomic_uint_fast64_t val = 0;]]
[[atomic_fetch_add_explicit(&val, 1, memory_order_relaxed);]])],
[AC_DEFINE(HAVE_C11_ATOMIC, 1, [Define to 1 if you have C11 'atomic' functions.])
atomic_type="C11"],
AC_LINK_IFELSE(
[AC_LANG_PROGRAM([[#include <stdint.h>]],
[[uint64_t val = 0; __atomic_add_fetch(&val, 1, __ATOMIC_RELAXED);]])],
[AC_DEFINE(HAVE_GCC_ATOMIC, 1, [Define to 1 if you have GCC-style '__atomic' functions.])
atomic_type="__atomic"]
)
)
# Prepare CFLAG_VISIBILITY to be used where needed
gl_VISIBILITY()
# Add code coverage macro
AX_CODE_COVERAGE
AX_SANITIZER
AS_IF([test -n "$sanitizer_CFLAGS"], [CFLAGS="$CFLAGS $sanitizer_CFLAGS"])
AM_CONDITIONAL([FUZZER], [test "$with_fuzzer" != "no"])
AM_CONDITIONAL([OSS_FUZZ], [test "$with_oss_fuzz" != "no"])
# Strip -fdebug-prefix-map= parameters from flags for better reproducibility of binaries.
filtered_cflags=$(echo -n "$CFLAGS" | \
sed 's/[[^[:alnum:]]]-f[[^[:space:]]]*-prefix-map=[[^[:space:]]]*//g')
filtered_cppflags=$(echo -n "$CPPFLAGS" | \
sed 's/[[^[:alnum:]]]-f[[^[:space:]]]*-prefix-map=[[^[:space:]]]*//g')
filtered_config_params=$(echo -n "$ac_configure_args" | \
sed 's/[[^[:alnum:]]]-f[[^[:space:]]]*-prefix-map=[[^[:space:]]]*//g')
result_msg_base="
Target: $host_os $host_cpu $endianity
Compiler: ${CC}
CFLAGS: ${filtered_cflags} ${filtered_cppflags}
LIBS: ${LIBS} ${LDFLAGS}
LibURCU: ${liburcu_LIBS} ${liburcu_CFLAGS}
GnuTLS: ${gnutls_LIBS} ${gnutls_CFLAGS}
Libedit: ${libedit_LIBS} ${libedit_CFLAGS}
LMDB: ${lmdb_LIBS} ${lmdb_CFLAGS}
Config: ${conf_mapsize} MiB default mapsize
Prefix: ${knot_prefix}
Run dir: ${run_dir}
Storage dir: ${storage_dir}
Config dir: ${config_dir}
Module dir: ${module_dir}
Static modules: ${static_modules}
Shared modules: ${shared_modules}
Knot DNS libraries: yes
Knot DNS daemon: ${enable_daemon}
Knot DNS utilities: ${enable_utilities}
Knot DNS documentation: ${enable_documentation}
Use recvmmsg: ${enable_recvmmsg}
Use SO_REUSEPORT(_LB): ${enable_reuseport}
XDP support: ${enable_xdp}
DoQ support: ${enable_quic}
Socket polling: ${socket_polling}
Atomic support: ${atomic_type}
Memory allocator: ${with_memory_allocator}
Fast zone parser: ${enable_fastparser}
Utilities with IDN: ${with_libidn}
Utilities with DoH: ${with_libnghttp2}
Utilities with Dnstap: ${enable_dnstap}
MaxMind DB support: ${enable_maxminddb}
Systemd integration: ${enable_systemd}
D-Bus support: ${enable_dbus}
POSIX capabilities: ${enable_cap_ng}
PKCS #11 support: ${enable_pkcs11}
Ed448 support: ${enable_ed448}
Code coverage: ${enable_code_coverage}
Sanitizer: ${with_sanitizer}
LibFuzzer: ${with_fuzzer}
OSS-Fuzz: ${with_oss_fuzz}"
result_msg_esc=$(echo -n " Configure:$filtered_config_params\n$result_msg_base" | sed '$!s/$/\\n/' | tr -d '\n')
AC_DEFINE_UNQUOTED([CONFIGURE_SUMMARY],["$result_msg_esc"],[Configure summary])
AC_CONFIG_FILES([Makefile
Doxyfile
doc/Makefile
tests/Makefile
tests-fuzz/Makefile
samples/Makefile
distro/Makefile
python/Makefile
python/knot_exporter/Makefile
python/knot_exporter/pyproject.toml
python/knot_exporter/setup.py
python/libknot/Makefile
python/libknot/pyproject.toml
python/libknot/setup.py
python/libknot/libknot/__init__.py
src/Makefile
src/libknot/xdp/Makefile
src/knot/modules/static_modules.h
])
AC_CONFIG_FILES([doc/modules.rst],
[cp doc/modules.rst "${srcdir}"/doc/modules.rst 2>/dev/null
abs_srcdir=$(cd "${srcdir}" && pwd)
ln -s -f "${abs_srcdir}"/src/knot/modules "${srcdir}"/doc 2>/dev/null])
AC_OUTPUT
AC_MSG_RESULT([
Knot DNS $VERSION
$result_msg_base
])