/
configure.ac
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configure.ac
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# -*- Autoconf -*-
# Process this file with autoconf to produce a configure script.
AC_PREREQ([2.69])
# For released versions, this is in x.y.z format.
# For GIT versions, this is x.y.z-git, where x.y.z denotes the next development
# version that is worked on and that is to be released.
AC_INIT(kea, 2.5.9-git, kea-dev@lists.isc.org)
AC_CONFIG_SRCDIR(README)
# serial-tests is not available in automake version before 1.13, so
# we'll check that and conditionally use serial-tests. This check is
# adopted from code by Richard W.M. Jones:
# https://www.redhat.com/archives/libguestfs/2013-February/msg00102.html
m4_define([serial_tests], [
m4_esyscmd([automake --version |
head -1 |
awk '{split ($NF,a,"."); if (a[1] == 1 && a[2] >= 12) { print "serial-tests" }}'
])
])
AM_INIT_AUTOMAKE(foreign serial_tests)
m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])dnl be backward compatible
AC_CONFIG_HEADERS([config.h])
AC_CONFIG_MACRO_DIR([m4macros])
AC_CANONICAL_HOST
AC_CANONICAL_BUILD
# Check if the user provided a CXXFLAGS. Must be done before AC_PROG_CXX which
# sets it to a default.
if test -n "${CXXFLAGS+x}"; then
custom_cxxflags=true
else
custom_cxxflags=false
fi
# Check for compilers.
AC_PROG_CXX
# Check for preprocessors.
AC_PROG_CXXCPP
# Check for exact Kea version.
AC_MSG_CHECKING(whether this is a tarball or git source or package preparation)
# KEA_PKG_VERSION_IN_CONFIGURE and KEA_PKG_TYPE_IN_CONFIGURE names may be weird
# considering those are placed inside configure script, but those are designed
# to be set in package sources (APKBUILD, rules or kea.spec) kea-packaging repo
# KEA_PKG_VERSION_IN_CONFIGURE will be date and timestamp of the package
# e.g. "isc20230921141113"
# KEA_PKG_TYPE_IN_CONFIGURE will be type of the package "rpm", "deb" or "apk"
if test -n "$KEA_PKG_VERSION_IN_CONFIGURE"; then
KEA_SRCID="$KEA_PKG_VERSION_IN_CONFIGURE $KEA_PKG_TYPE_IN_CONFIGURE"
AC_MSG_RESULT("$KEA_PKG_TYPE_IN_CONFIGURE")
elif test -d "${srcdir}/.git"; then
KEA_SRCID="git `(cd "${top_srcdir}";git rev-parse HEAD)`"
AC_MSG_RESULT("git")
else
KEA_SRCID="tarball"
AC_MSG_RESULT("tarball")
fi
# Export KEA_SRCID to a C++ header.
# This will be either package version or "tarball" or "git abcd".
# We do not want to put this in a config.h, because it messes up ccache
# horribly. When building different branches, the commit-id is different
# and since the config.h is included in most files *and* has a different
# content, ccache can't use cached content and thus has to do full compilation.
# Now it is in kea_version.h and config.status substitutes it.
AC_SUBST(KEA_SRCID)
# Check whether the version is a development one (odd minor).
AC_MSG_CHECKING(whether this is a development or stable version)
PACKAGE_VERSION_MINOR=`echo $PACKAGE_VERSION | cut -d '.' -f 2`
PACKAGE_VERSION_TYPE="stable"
if expr "$PACKAGE_VERSION_MINOR" % 2 = 1; then
PACKAGE_VERSION_TYPE="development"
fi
# Export PACKAGE_VERSION_TYPE to kea_version.h
AC_SUBST(PACKAGE_VERSION_TYPE)
# Find a separator for path_replacer
for sep in "+" "," ";" "&" "__NONE__"; do
if `pwd | grep -q $sep`; then continue; fi
if `echo ${prefix} | grep -q $sep`; then continue; fi
if `echo ${sysconfdir} | grep -q $sep`; then continue; fi
if `echo ${localstatedir} | grep -q $sep`; then continue; fi
SEP=$sep
break
done
if test "$sep" = "__NONE__"; then
AC_MSG_ERROR([can't find a separator character in '+,;&' for the path_replacer shell script])
fi
AC_SUBST(SEP)
# pkg-config can be required.
AC_PATH_PROG([PKG_CONFIG], [pkg-config])
# check against BusyBox ps not supporting ps -p.
ps -p 1234 2>&1 > /dev/null | grep 'unrecognized option: p'
if test $? -eq 0; then
AC_MSG_WARN("ps does not support -p. It is likely the BusyBox ps: please install a full ps like procps")
fi
# Enable low-performing debugging facilities? This option optionally
# enables some debugging aids that perform slowly and hence aren't built
# by default.
AC_ARG_ENABLE([debug],
[AS_HELP_STRING([--enable-debug],
[enable debugging symbols, enable log4cplus's own logging, add more sanity checks in DNS code (default is no)])],
[case "${enableval}" in
yes) debug_enabled=yes ;;
no) debug_enabled=no ;;
*) AC_MSG_ERROR([bad value ${enableval} for --enable-debug]) ;;
esac],[debug_enabled=no])
AM_CONDITIONAL([DEBUG_ENABLED], [test x$debug_enabled = xyes])
AM_COND_IF([DEBUG_ENABLED], [AC_DEFINE([ENABLE_DEBUG], [1], [Enable low-performing debugging facilities?])])
if test "${debug_enabled}" = 'yes'; then
# If the shell variable CXXFLAGS was not already set, based on compiler,
# AC_PROG_CXX can set it to -g, -O2, or both. Since they can conflict with
# what --enable-debug is setting, let's remove them, but only if the user has
# not explicitly set the variable. We don't inspect what the user set. If one
# of the conflicting flags was set, it might mean that the user wanted to
# override, which is fine.
if ! ${custom_cxxflags}; then
CXXFLAGS=''
fi
KEA_CXXFLAGS="${KEA_CXXFLAGS} -g3 -O0"
# g++ has some additional flags that can be useful.
if test "${GXX}" = 'yes'; then
KEA_CXXFLAGS="${KEA_CXXFLAGS} -ggdb3 -grecord-gcc-switches"
fi
fi
# Include premium configuration
INCLUDED_HOOKS=
PREMIUM=no
PREMIUM_DIR=
DISTCHECK_PREMIUM_CONFIGURE_FLAG=
AC_DEFUN([AX_PREMIUM],[])
# m4_sinclude includes the file if it exists at autoreconf time
m4_sinclude(premium/config.m4)
AC_SUBST(PREMIUM_DIR)
AC_SUBST(DISTCHECK_PREMIUM_CONFIGURE_FLAG)
AX_PREMIUM
# Export PREMIUM to kea_version.h.
AC_SUBST(PREMIUM)
# Include contrib configuration
# (currently only a provision copied from premium support)
CONTRIB_DIR=
DISTCHECK_CONTRIB_CONFIGURE_FLAG=
AC_DEFUN([AX_CONTRIB],[])
m4_sinclude(contrib/config.m4)
AC_SUBST(CONTRIB_DIR)
AC_SUBST(DISTCHECK_CONTRIB_CONFIGURE_FLAG)
AX_CONTRIB
# Libtool configuration
#
# libtool cannot handle spaces in paths, so exit early if there is one
if [ test `echo $PWD | grep -c ' '` != "0" ]; then
AC_MSG_ERROR([Kea cannot be built in a directory that contains spaces, because of libtool limitations. Please change the directory name, or use a symbolic link that does not contain spaces.])
fi
# On FreeBSD (and probably some others), clang++ does not meet an autoconf
# assumption in identifying libtool configuration regarding shared library:
# the configure script will execute "$CC -shared $CFLAGS/$CXXFLAGS -v" and
# expect the output contains -Lxxx or -Ryyy. This is the case for g++, but
# not for clang++, and, as a result, it will cause various errors in linking
# programs or running them with a shared object (such as some of our python
# scripts).
# To work around this problem we define a temporary variable
# "CXX_LIBTOOL_LDFLAGS". It's expected to be defined as, e.g, "-L/usr/lib"
# to temporarily fake the output so that it will be compatible with that of
# g++.
CFLAGS_SAVED=$CFLAGS
CXXFLAGS_SAVED=$CXXFLAGS
CFLAGS="$CFLAGS $CXX_LIBTOOL_LDFLAGS"
CXXFLAGS="$CXXFLAGS $CXX_LIBTOOL_LDFLAGS"
LT_INIT
CFLAGS=$CFLAGS_SAVED
CXXFLAGS=$CXXFLAGS_SAVED
# Use C++ language
AC_LANG([C++])
# Identify the compiler: this check must be after AC_PROG_CXX and AC_LANG.
AM_CONDITIONAL(USE_GXX, test "X${GXX}" = "Xyes")
AC_CHECK_DECL([__SUNPRO_CC], [SUNCXX="yes"], [SUNCXX="no"])
AC_CHECK_DECL([__clang__], [CLANGPP="yes"], [CLANGPP="no"])
# USE_CLANGPP is no longer used, keep it by symmetry with USE_GXX?
AM_CONDITIONAL(USE_CLANGPP, test "X${CLANGPP}" = "Xyes")
# Check for C++14 features support
AX_ISC_CPP14
# Check for C++20 compiler support.
AX_ISC_CPP20
# Check for std::is_base_of support
AC_MSG_CHECKING([for std::is_base_of])
AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM(
[#include <type_traits>
class A {};
class B : A {};]
[static_assert(std::is_base_of<A, B>::value, "");])],
[AC_MSG_RESULT(yes)
AC_DEFINE([HAVE_IS_BASE_OF], [1],
[Define to 1 if std::is_base_of is available])],
[AC_MSG_RESULT(no)])
# Check if system and steady clocks use the same duration type.
AC_MSG_CHECKING([for different std::chrono::duration types])
AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM(
[#include <chrono>
#include <type_traits>]
[static_assert(!std::is_same<
std::chrono::system_clock::duration,
std::chrono::steady_clock::duration
>::value, "");])],
[AC_MSG_RESULT(yes)],
[AC_MSG_RESULT(no)
AC_DEFINE([CHRONO_SAME_DURATION], [1],
[Define to 1 if system and steady clocks use the same duration type])])
dnl Determine if we are using GNU sed
GNU_SED=no
$SED --version 2> /dev/null | grep GNU > /dev/null 2>&1
if test $? -eq 0; then
GNU_SED=yes
fi
# Display the C++ version
AC_MSG_CHECKING([C++ version])
cat > conftest.cpp << EOF
long v = __cplusplus;
EOF
CXX_STANDARD=`$CXX $CXXFLAGS -E -o - conftest.cpp | grep '^long v = ' | $SED -e 's/^long v = //' -e 's/[[^0-9]]*$//' 2> /dev/null`
if test -z "$CXX_STANDARD"; then
CXX_STANDARD="unknown"
fi
AC_MSG_RESULT([$CXX_STANDARD])
# Linker options
# check -R, "-Wl,-R" or -rpath
AX_ISC_RPATH
# Compiler dependent settings: define some mandatory CXXFLAGS here.
# We also use a separate variable KEA_CXXFLAGS. This will (and should) be
# used as the default value for each specific AM_CXXFLAGS:
# AM_CXXFLAGS = $(KEA_CXXFLAGS)
# AM_CXXFLAGS += ... # add module specific flags
# We need this so that we can disable some specific compiler warnings per
# module basis; since AM_CXXFLAGS are placed before CXXFLAGS, and since
# gcc's -Wno-XXX option must be specified after -Wall or -Wextra, we cannot
# specify the default warning flags in CXXFLAGS and let specific modules
# "override" the default.
# This may be used to try linker flags.
AC_DEFUN([KEA_CXX_TRY_FLAG], [
AC_MSG_CHECKING([whether $CXX supports $1])
kea_save_CXXFLAGS="$CXXFLAGS"
CXXFLAGS="$CXXFLAGS -Werror $1"
AC_LINK_IFELSE([AC_LANG_SOURCE([int main(){ return 0;}])],
[kea_cxx_flag=yes], [kea_cxx_flag=no])
CXXFLAGS="$kea_save_CXXFLAGS"
if test "x$kea_cxx_flag" = "xyes"; then
ifelse([$2], , :, [$2])
else
ifelse([$3], , :, [$3])
fi
AC_MSG_RESULT([$kea_cxx_flag])
])
CXX_VERSION="unknown"
# SunStudio compiler requires special compiler options for boost
# (https://web.archive.org/web/20100103115135/http://blogs.sun.com/sga/entry/boost_mini_howto)
if test "$SUNCXX" = "yes"; then
CXX_VERSION=`$CXX -V 2> /dev/null | head -1`
CXXFLAGS="$CXXFLAGS -library=stlport4 -features=tmplife -features=tmplrefstatic"
KEA_CXXFLAGS="$KEA_CXXFLAGS -mt"
MULTITHREADING_FLAG="-mt"
fi
# Newer versions of clang++ promotes "unused driver arguments" warnings to
# a fatal error with -Werror, causing build failure. Since we use multiple
# compilers on multiple systems, this can easily happen due to settings for
# non clang++ environments that could be just ignored otherwise. It can also
# happen if clang++ is used via ccache. So, although probably suboptimal,
# we suppress this particular warning. Note that it doesn't weaken checks
# on the source code.
if test "X$CLANGPP" = "Xyes"; then
CXX_VERSION=`$CXX --version 2> /dev/null | head -1`
KEA_CXXFLAGS="$KEA_CXXFLAGS -Qunused-arguments"
fi
# Comparison function based on the sort command that works with decimal numbers
# in a portable manner to the detriment of expr, test and most other commands.
less_than() {
# Equal means not less than.
if test "${1}" = "${2}"; then
return 1
fi
# Sort numerically, check the first item against ${1}.
if test "$(printf '%s\n%s\n' "${1}" "${2}" | sort -V | head -n 1)" = "${1}"; then
return 0
fi
# ${2} is smaller than ${1}.
return 1
}
# gcc/clang specific settings:
if test "X$GXX" = "Xyes"; then
CXX_VERSION=`$CXX --version 2> /dev/null | head -1`
KEA_CXXFLAGS="$KEA_CXXFLAGS -Wall -Wextra -Wnon-virtual-dtor -Wwrite-strings -Woverloaded-virtual -Wno-sign-compare"
# gcc 4.4 would emit warnings about breaking strict aliasing rules.
# See https://gcc.gnu.org/bugzilla/show_bug.cgi?id=41874
CXX_DUMP_VERSION=`$CXX -dumpversion | cut -f1-2 -d.`
if less_than "$CXX_DUMP_VERSION" "4.5"; then
WARNING_GCC_44_STRICT_ALIASING_CFLAG="-fno-strict-aliasing"
fi
AC_SUBST(WARNING_GCC_44_STRICT_ALIASING_CFLAG)
CPPP="$CXXCPP"
# gcc 5 preprocessor requires -P for checking its output
if less_than "5" "$CXX_DUMP_VERSION"; then
CPPP="$CPPP -P"
fi
case "$host" in
*-solaris*)
MULTITHREADING_FLAG=-pthreads
# In Solaris, IN6ADDR_ANY_INIT and IN6ADDR_LOOPBACK_INIT need -Wno-missing-braces
KEA_CXXFLAGS="$KEA_CXXFLAGS -Wno-missing-braces"
;;
*-apple-darwin*)
MULTITHREADING_FLAG=
;;
*)
MULTITHREADING_FLAG=-pthread
;;
esac
KEA_CXXFLAGS="$KEA_CXXFLAGS $MULTITHREADING_FLAG"
dumpmachine=`$CXX -dumpmachine`
case "$dumpmachine" in
*-musl)
AC_MSG_WARN("Detected musl libc: musl dlclose() is a noop")
AC_DEFINE([LIBC_MUSL], [1], [Define to 1 if libc is musl])
;;
esac
# Disable -Werror by default. Only use it if specifically enabled.
# The usage of this flag is:
#
# No flag: -Werror is disabled
# --with-werror: -Werror is enabled
# --with-werror=yes: -Werror is enabled
# --with-werror=no: -Werror is disabled
# --with-werror=value -Werror is enabled and "value" is included in the compiler flags
#
# In the last case, "value" may be one or more compiler flags, e.g.
# --with-werror=-Wundef
# --with-werror='-Wundef -Wconversion'
werror_extras=
AC_ARG_WITH(werror,
[AS_HELP_STRING([--with-werror],[Compile using -Werror (default=no)])],
[
case "${withval}" in
yes) with_werror=1 ;;
no) with_werror=0 ;;
-*) with_werror=1; werror_extras=${withval} ;;
*) AC_MSG_ERROR(bad value ${withval} for --with-werror) ;;
esac],
[with_werror=0])
werror_ok=0
# Certain versions of gcc (g++) have a bug that incorrectly warns about
# the use of anonymous name spaces even if they're closed in a single
# translation unit. For these versions we have to disable -Werror.
if test $with_werror = 1; then
CXXFLAGS_SAVED="$CXXFLAGS"
CXXFLAGS="$CXXFLAGS $KEA_CXXFLAGS -Werror"
AC_MSG_CHECKING(for in-TU anonymous namespace breakage)
# We use struct, not class, here, because some compilers complain about
# "unused private members", causing a false positive.
AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM([[
namespace { struct Foo {}; }
namespace isc { struct Bar { Foo foo_; }; }
]], [[]])],
[AC_MSG_RESULT(no)
werror_ok=1
KEA_CXXFLAGS="$KEA_CXXFLAGS -Werror"],
[AC_MSG_RESULT(yes)]
)
CXXFLAGS="$CXXFLAGS_SAVED"
fi
# Added flags after -Werror
# Some versions of GCC warn about some versions of Boost regarding
# missing initializer for members in its posix_time.
# https://web.archive.org/web/20150911093559/https://svn.boost.org/trac/boost/ticket/3477
# But older GCC compilers don't have the flag.
KEA_CXX_TRY_FLAG([-Wno-missing-field-initializers],
[KEA_CXXFLAGS="$KEA_CXXFLAGS -Wno-missing-field-initializers"])
if test "X$CLANGPP" = "Xyes"; then
# This is to workaround unused variables tcout and tcerr in
# log4cplus's streams.h and unused parameters from some of the
# Boost headers.
KEA_CXXFLAGS="$KEA_CXXFLAGS -Wno-unused-variable -Wno-unused-parameter"
fi
# Add the extras at the very last
# Note it can be used to re-enable a (fatal) warning
for extra in $werror_extras; do
KEA_CXX_TRY_FLAG([$extra],
[KEA_CXXFLAGS="$KEA_CXXFLAGS $extra"],
[AC_MSG_ERROR([$CXX does not support $extra"])])
done
fi dnl GXX = yes
# allow building programs with static link. we need to make it selective
# because loadable modules cannot be statically linked.
AC_ARG_ENABLE([static-link],
[AS_HELP_STRING([--enable-static-link],
[build programs with static link [[default=no]]])],
[enable_static_link=yes], [enable_static_link=no])
AM_CONDITIONAL(USE_STATIC_LINK, test $enable_static_link = yes)
AM_COND_IF([USE_STATIC_LINK], [AC_DEFINE([USE_STATIC_LINK], [1], [Was Kea statically linked?])])
# Check validity about some libtool options
if test $enable_static_link = yes -a $enable_static = no; then
AC_MSG_ERROR([--enable-static-link requires --enable-static])
fi
if test $enable_static_link = no -a $enable_shared = no; then
AC_MSG_ERROR([--disable-static-link requires --enable-shared])
fi
# OS dependent configuration
kea_undefined_pthread_behavior=no
case "$host" in
*-solaris*)
# Solaris requires special definitions to get some standard libraries
# (e.g. getopt(3)) available with common used header files.
CPPFLAGS="$CPPFLAGS -D_XPG4_2 -D__EXTENSIONS__"
# "now" binding is necessary to prevent deadlocks in C++ static initialization code
LDFLAGS="$LDFLAGS -z now"
# Destroying locked mutexes, condition variables being waited
# on, etc. are undefined behavior on Solaris, so we set it as
# such here.
kea_undefined_pthread_behavior=yes
;;
*-apple-darwin*)
# Starting with OSX 10.7 (Lion) we must choose which IPv6 API to use
# (RFC2292 or RFC3542).
CPPFLAGS="$CPPFLAGS -D__APPLE_USE_RFC_3542"
# In OS X 10.9 (and possibly any future versions?) pthread_cond_destroy
# doesn't work as documented, which makes some of unit tests fail.
AC_MSG_CHECKING([OS X versions where destroying locked locks do not fail])
AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM([[
#include <Availability.h>
]], [[
#ifdef __MAC_OS_X_VERSION_MIN_REQUIRED
#if __MAC_OS_X_VERSION_MIN_REQUIRED >= 1090
#error " OS X >= 10.9"
#endif
#endif
return 1;
]])],
[AC_MSG_RESULT([OS X < 10.9])],
[AC_MSG_RESULT([OS X >= 10.9])
kea_undefined_pthread_behavior=yes])
;;
*-freebsd*)
# On FreeBSD10.1 pthread_cond_destroy doesn't work as documented, which
# causes the CondVarTest.destroyWhileWait test to fail. According to the
# pthread_cond_destroy documentation for FreeBSD, this function should
# return EBUSY error when there is a thread waiting for the conditional
# variable, whereas this function returned success code. We treat it here
# as an undefined behavior. Also note that this issue was only visible
# when gtest 1.7 was in use, because the previous versions of gtest
# didn't seem to have support for the death tests on FreeBSD. As a
# result, the test was not executed and the error didn't occur.
kea_undefined_pthread_behavior=yes
;;
esac
if [ test $kea_undefined_pthread_behavior = "yes" ]; then
AC_DEFINE([HAS_UNDEFINED_PTHREAD_BEHAVIOR], [1], [Does this platform have some undefined pthreads behavior?])
fi
# Our experiments have shown Solaris 10 has broken support for the
# IPV6_USE_MIN_MTU socket option for getsockopt(); it doesn't return the value
# previously set via setsockopt(). We know it doesn't happen on one instance
# on Solaris 11, but we don't know whether it happens for any Solaris 10
# implementations or for earlier versions of Solaris. In any case, at the
# moment this matters for only one unittest case, so we'll simply disable
# the affected test using the following definition with the specific hardcoding
# of that version of Solaris.
case "$host" in
*-solaris2.10)
AC_DEFINE([HAVE_BROKEN_GET_IPV6_USE_MIN_MTU], [1],
[Define to 1 if getsockopt(IPV6_USE_MIN_MTU) does not work])
;;
esac
# Made perfdhcp optional.
AC_ARG_ENABLE(perfdhcp, [AS_HELP_STRING([--enable-perfdhcp],
[enable perfdhcp, a DHCP benchmarking tool [default=no]])],
enable_perfdhcp=$enableval, enable_perfdhcp=no)
DISTCHECK_PERFDHCP_CONFIGURE_FLAG=
if test "x$enable_perfdhcp" != xno ; then
DISTCHECK_PERFDHCP_CONFIGURE_FLAG="--enable-perfdhcp"
fi
# Export to makefiles the info whether we have perfdhcp enabled or not
AM_CONDITIONAL(PERFDHCP, test x$enable_perfdhcp != xno)
AC_SUBST(DISTCHECK_PERFDHCP_CONFIGURE_FLAG)
# produce PIC unless we disable shared libraries. need this for python bindings.
if test $enable_shared != "no" -a "X$GXX" = "Xyes"; then
KEA_CXXFLAGS="$KEA_CXXFLAGS -fPIC"
fi
# Look for glib static libs if they're trying to do static builds
if test $enable_static_link != "no"; then
CXX_SAVED=$CXX
CXX="$CXX -static"
AC_LINK_IFELSE(
[AC_LANG_PROGRAM([#include <math.h>],[(void)sqrt(-1.0);])],
[AC_MSG_RESULT([checking for static glib libraries... yes])],
[AC_MSG_RESULT([checking for static glib libraries... no])
AC_MSG_ERROR([Building with --enable-static-link does not work. You appear to be missing glib static libraries. Check config.log for details.])])
CXX=$CXX_SAVED
fi
AC_SUBST(KEA_CXXFLAGS)
# Checks for libraries.
AC_SEARCH_LIBS(inet_pton, [nsl])
AC_SEARCH_LIBS(recvfrom, [socket])
AC_SEARCH_LIBS(nanosleep, [rt])
AC_SEARCH_LIBS(dlsym, [dl])
# Checks for header files.
# Checks for typedefs, structures, and compiler characteristics.
AC_HEADER_STDBOOL
AC_TYPE_SIZE_T
AC_TYPE_SSIZE_T
# Detect OS type (it may be used to do OS-specific things, e.g.
# interface detection in DHCP)
AC_MSG_CHECKING(OS type)
BSD_TYPE="notaBSD"
case $host in
*-linux*)
AC_DEFINE([OS_LINUX], [1], [Running on Linux?])
OS_TYPE="Linux"
CPPFLAGS="$CPPFLAGS -DOS_LINUX"
;;
*-apple-darwin*)
AC_DEFINE([OS_BSD], [1], [Running on BSD?])
AC_DEFINE([OS_OSX], [1], [Running on OSX?])
OS_TYPE="BSD"
BSD_TYPE="OSX"
CPPFLAGS="$CPPFLAGS -DOS_BSD"
;;
*-freebsd*)
AC_DEFINE([OS_BSD], [1], [Running on BSD?])
AC_DEFINE([OS_FREEBSD], [1], [Running on FreeBSD?])
OS_TYPE="BSD"
BSD_TYPE="FreeBSD"
CPPFLAGS="$CPPFLAGS -DOS_BSD"
;;
*-netbsd*)
AC_DEFINE([OS_BSD], [1], [Running on BSD?])
AC_DEFINE([OS_NETBSD], [1], [Running on NetBSD?])
OS_TYPE="BSD"
BSD_TYPE="NetBSD"
CPPFLAGS="$CPPFLAGS -DOS_BSD"
;;
*-openbsd*)
AC_DEFINE([OS_BSD], [1], [Running on BSD?])
AC_DEFINE([OS_OPENBSD], [1], [Running on OpenBSD?])
OS_TYPE="BSD"
BSD_TYPE="OpenBSD"
CPPFLAGS="$CPPFLAGS -DOS_BSD"
;;
*-solaris*)
AC_DEFINE([OS_SOLARIS], [1], [Running on Solaris?])
OS_TYPE="Solaris"
CPPFLAGS="$CPPFLAGS -DOS_SUN"
;;
*)
OS_TYPE="Unknown"
# $host_os is more user friendly than full $host
AC_MSG_WARN("Unsupported OS: $host_os")
;;
esac
AC_MSG_RESULT($OS_TYPE)
AM_CONDITIONAL(OS_LINUX, test $OS_TYPE = Linux)
AM_CONDITIONAL(OS_BSD, test $OS_TYPE = BSD)
AM_CONDITIONAL(OS_SOLARIS, test $OS_TYPE = Solaris)
AM_CONDITIONAL(OS_OSX, test $BSD_TYPE = OSX)
AM_CONDITIONAL(OS_FREEBSD, test $BSD_TYPE = FreeBSD)
AM_CONDITIONAL(OS_NETBSD, test $BSD_TYPE = NetBSD)
AM_CONDITIONAL(OS_OPENBSD, test $BSD_TYPE = OpenBSD)
AC_MSG_CHECKING(for sa_len in struct sockaddr)
AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM([[
#include <sys/types.h>
#include <sys/socket.h>
]], [[
struct sockaddr sa;
sa.sa_len = 0;
return (0);
]])],
[AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_SA_LEN, 1, [Define to 1 if sockaddr has a sa_len member, and corresponding sin_len and sun_len])],
[AC_MSG_RESULT(no)]
)
usable_regex=
AC_MSG_CHECKING(for usable C++11 regex)
AC_RUN_IFELSE([AC_LANG_SOURCE([[
#include <regex>
#include <iostream>
int main() {
const std::regex regex(".*");
const std::string string = "This should match!";
const auto result = std::regex_search(string, regex);
return result ? EXIT_SUCCESS : EXIT_FAILURE;
}]])],
[AC_MSG_RESULT(yes)
usable_regex="yes"],
[AC_MSG_RESULT(no)
usable_regex="no"],
[AC_MSG_RESULT(cross compiling)])
# When cross-compiling we don't have any way to check if regex is
# usable or not.
# Let's be optimistic and assume it is by testing only the negative case.
if test "${usable_regex}" = 'no'; then
AC_MSG_ERROR([Need proper regex functionality.])]
fi
# Check for NETCONF support. If NETCONF was enabled in the build, and this check
# passes, it will enforce the --std=c++20 flag. Let's do the check as early as
# possible so that the rest of the checks include the flag as well.
AX_NETCONF
# Run the gtest detection routines. This supports --with-gtest and --with-gtest-source
# parameters. If specified, those will set the HAVE_GTEST, HAVE_GTEST_SOURCE,
# DISTCHECK_GTEST_CONFIGURE_FLAG, GTEST_INCLUDES, GTEST_LDFLAGS, GTEST_LDADD, GTEST_SOURCE
# variables.
AX_ISC_GTEST
# Sets up for use of botan unless openssl is specified
# sets variables CRYPTO_*
AX_CRYPTO
# List of directories, where tools like mysql_config or pgsql_config will be
# searched for
defaultdirs="/usr /usr/local /usr/pkg /opt /opt/local"
# Check for MySql. The path to the mysql_config program is given with
# the --with-mysql-config (default to /usr/bin/mysql-config). By default,
# the software is not built with MySQL support enabled.
mysql_config="no"
AC_ARG_WITH([mysql],
[AS_HELP_STRING([--with-mysql[[=PATH]]],
[path to the MySQL 'mysql_config' script (MySQL is used for the DHCP database)])],
[mysql_config="$withval"])
deprec_msg="no"
AC_ARG_WITH([dhcp-mysql],,
[mysql_config="$withval";deprec_msg="yes"])
if test "${deprec_msg}" = "yes" ; then
AC_MSG_WARN([--with-dhcp-mysql has been deprecated, please use --with-mysql])
fi
if test "${mysql_config}" = "yes" ; then
MYSQL_CONFIG="/usr/bin/mysql_config"
for d in $defaultdirs
do
if test -f $d/bin/mysql_config; then
MYSQL_CONFIG="$d/bin/mysql_config"
break
fi
done
elif test "${mysql_config}" != "no" ; then
MYSQL_CONFIG="${withval}"
fi
DISTCHECK_MYSQL_CONFIGURE_FLAG=
if test "$MYSQL_CONFIG" != "" ; then
if test -d "$MYSQL_CONFIG" -o ! -x "$MYSQL_CONFIG" ; then
AC_MSG_ERROR([MySQL dependencies cannot be found. Please install MySQL libraries or point --with-mysql to mysql_config program if it is located in non-default directory, eg. --with-mysql=/opt/mysql/bin/mysql_config.])
fi
DISTCHECK_MYSQL_CONFIGURE_FLAG="--with-mysql=$MYSQL_CONFIG"
MYSQL_CPPFLAGS=`$MYSQL_CONFIG --cflags`
MYSQL_LIBS=`$MYSQL_CONFIG --libs`
MYSQL_LIBS="$MYSQL_LIBS $CRYPTO_LIBS"
MYSQL_VERSION=`$MYSQL_CONFIG --version`
AC_SUBST(MYSQL_CPPFLAGS)
AC_SUBST(MYSQL_LIBS)
AC_SUBST(DISTCHECK_MYSQL_CONFIGURE_FLAG)
# Check that a simple program using MySQL functions can compile and link.
CPPFLAGS_SAVED="$CPPFLAGS"
LIBS_SAVED="$LIBS"
CPPFLAGS="$MYSQL_CPPFLAGS $CPPFLAGS"
LIBS="$MYSQL_LIBS $LIBS"
AC_LINK_IFELSE(
[AC_LANG_PROGRAM([#include <mysql.h>],
[MYSQL mysql_handle;
(void) mysql_init(&mysql_handle);
])],
[AC_MSG_RESULT([checking for MySQL headers and library... yes])],
[AC_MSG_RESULT([checking for MySQL headers and library... no])
AC_MSG_ERROR([Needs MySQL library])]
)
# Note that MYSQL is present in the config.h file
AC_DEFINE([HAVE_MYSQL], [1], [MySQL is present])
# Check if my_bool is defined.
AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM([#include <mysql.h>
const my_bool MLM_FALSE = 0;]
[])],
[AC_MSG_RESULT([checking for MySQL my_bool... yes])
AC_DEFINE([HAVE_MYSQL_MY_BOOL], [1], [MySQL uses my_bool])],
[AC_MSG_RESULT([checking for MySQL my_bool... no])])
# Check if mysql_get_option is defined.
AC_MSG_CHECKING([for MySQL mysql_get_option])
AC_LINK_IFELSE(
[AC_LANG_PROGRAM(
[#include <mysql.h>],
[MYSQL handle;
unsigned int timeout;
mysql_get_option(&handle, MYSQL_OPT_CONNECT_TIMEOUT, &timeout);]
)],
[AC_MSG_RESULT([yes])
AC_DEFINE([HAVE_MYSQL_GET_OPTION], [true], [MySQL has mysql_get_option defined.])],
[AC_MSG_RESULT([no])
AC_MSG_WARN([mysql_get_option program failed to build:
$(cat conftest.cpp)
$(cat conftest.err)])]
)
CPPFLAGS=$CPPFLAGS_SAVED
LIBS=$LIBS_SAVED
fi
# Solaris puts FIONREAD in filio.h
AC_CHECK_HEADERS(sys/filio.h,,,)
# ... and at the shell level, so Makefile.am can take action depending on this.
AM_CONDITIONAL(HAVE_MYSQL, test "$MYSQL_CONFIG" != "")
pg_config="no"
AC_ARG_WITH([pgsql],
[AS_HELP_STRING([--with-pgsql[[=PATH]]],
[path to the PostgreSQL 'pg_config' script])],
[pg_config="$withval"])
deprec_msg="no"
AC_ARG_WITH([dhcp-pgsql],,
[pg_config="$withval";deprec_msg="yes"])
if test "${deprec_msg}" = "yes" ; then
AC_MSG_WARN([--with-dhcp-pgsql has been deprecated, please use --with-pgsql])
fi
if test "${pg_config}" = "yes" ; then
PG_CONFIG="/usr/bin/pg_config"
for d in $defaultdirs
do
if test -f $d/bin/pg_config; then
PG_CONFIG="$d/bin/pg_config"
break
fi
done
elif test "${pg_config}" != "no" ; then
PG_CONFIG="${withval}"
fi
DISTCHECK_PGSQL_CONFIGURE_FLAG=
if test "$PG_CONFIG" != "" ; then
if test -d "$PG_CONFIG" -o ! -x "$PG_CONFIG" ; then
AC_MSG_ERROR([PostgreSQL dependencies cannot be found. Please install PostgreSQL libraries or point --with-pgsql to pg_config program if it is located in non-default directory, eg. --with-pgsql=/opt/pgsql/bin/pg_config.])
fi
DISTCHECK_PGSQL_CONFIGURE_FLAG="--with-pgsql=$PG_CONFIG"
PGSQL_CPPFLAGS=`$PG_CONFIG --cppflags`
PGSQL_INCLUDEDIR=`$PG_CONFIG --includedir`
PGSQL_INCLUDEDIR_SERVER=`$PG_CONFIG --includedir-server`
PGSQL_CPPFLAGS="$PGSQL_CPPFLAGS -I$PGSQL_INCLUDEDIR -I$PGSQL_INCLUDEDIR_SERVER"
PGSQL_LIBS=`$PG_CONFIG --libdir`
PGSQL_LIBS="-L$PGSQL_LIBS -lpq"
PGSQL_VERSION=`$PG_CONFIG --version`
PGSQL_MAJOR_VERSION=`$PG_CONFIG --version | cut -f2 -d' ' | cut -f1 -d'.'`
AC_SUBST(PGSQL_CPPFLAGS)
AC_SUBST(PGSQL_LIBS)
AC_SUBST(DISTCHECK_PGSQL_CONFIGURE_FLAG)
# Check that a simple program using PostgreSQL functions can compile and link.
CPPFLAGS_SAVED="$CPPFLAGS"
LIBS_SAVED="$LIBS"
CPPFLAGS="$PGSQL_CPPFLAGS $CPPFLAGS"
LIBS="$PGSQL_LIBS $LIBS"
AC_LINK_IFELSE(
[AC_LANG_PROGRAM([#include <libpq-fe.h>],
[PGconn * c = PQconnectdb("dbname = 'postgres'");
PQfinish(c);])],
[AC_MSG_RESULT([checking for PostgreSQL headers and library... yes])],
[AC_MSG_RESULT([checking for PostgreSQL headers and library... no])
AC_MSG_ERROR([Needs PostgreSQL library])]
)
AC_CHECK_HEADERS([utils/errcodes.h],,
AC_MSG_ERROR([Missing required header file (errcodes.h) from PostgreSQL server-development package]))
CPPFLAGS=$CPPFLAGS_SAVED
LIBS=$LIBS_SAVED
# Note that PostgreSQL is present in the config.h file
AC_DEFINE([HAVE_PGSQL], [1], [PostgreSQL is present])
if test $PGSQL_MAJOR_VERSION -ge 12; then
AC_DEFINE([HAVE_PGSQL_TCP_USER_TIMEOUT], [1], [PostgreSQL connection parameter tcp_user_timeout supported])
fi
fi
# ... and at the shell level, so Makefile.am can take action depending on this.
AM_CONDITIONAL(HAVE_PGSQL, test "$PG_CONFIG" != "")
# allow building kea programs with a PostgreSQL without OpenSSL.
AC_ARG_ENABLE([pgsql-ssl],
[AS_HELP_STRING([--enable-pgsql-ssl],
[enable OpenSSL support in PostgreSQL [default=yes]])],
[pgsql_ssl=$enableval], [pgsql_ssl=no], [pgsql_ssl=yes])
if test "${pgsql_ssl}" = "yes"; then
AC_DEFINE([HAVE_PGSQL_SSL], [1], [PostgreSQL was built with OpenSSL support])
fi
# Check for log4cplus
DISTCHECK_LOG4CPLUS_CONFIGURE_FLAG=
log4cplus_path="yes"
AC_ARG_WITH([log4cplus],
[AS_HELP_STRING([--with-log4cplus[[=PATH]]],
[optional path to the log4cplus installation directory])],
[log4cplus_path="$withval"])
if test "${log4cplus_path}" = "no" ; then
AC_MSG_ERROR([Need log4cplus])
elif test "${log4cplus_path}" != "yes" ; then
DISTCHECK_LOG4CPLUS_CONFIGURE_FLAG="-with-log4cplus=${log4cplus_path}"
LOG4CPLUS_INCLUDES="-I${log4cplus_path}/include"
LOG4CPLUS_LIBS="-L${log4cplus_path}/lib"
else
# If not specified, try some common paths.
for d in $defaultdirs
do
if test -f $d/include/log4cplus/logger.h; then
LOG4CPLUS_INCLUDES="-I$d/include"
LOG4CPLUS_LIBS="-L$d/lib"
if test -d $d/lib64; then
LOG4CPLUS_LIBS="$LOG4CPLUS_LIBS -L$d/lib64"
fi
break
fi
done
DISTCHECK_LOG4CPLUS_CONFIGURE_FLAG="-with-log4cplus"
fi
LOG4CPLUS_LIBS="$LOG4CPLUS_LIBS -llog4cplus"
AC_SUBST(DISTCHECK_LOG4CPLUS_CONFIGURE_FLAG)
AC_SUBST(LOG4CPLUS_LIBS)
AC_SUBST(LOG4CPLUS_INCLUDES)
CPPFLAGS_SAVED=$CPPFLAGS
CPPFLAGS="$LOG4CPLUS_INCLUDES $CPPFLAGS"
LIBS_SAVED="$LIBS"
LIBS="$LOG4CPLUS_LIBS $MULTITHREADING_FLAG $LIBS"
AC_CHECK_HEADERS([log4cplus/logger.h],,
AC_MSG_ERROR([Missing required header file (logger.h) from the log4cplus package]))
AC_LINK_IFELSE(
[AC_LANG_PROGRAM([#include <log4cplus/logger.h>
],
[using namespace log4cplus;
Logger logger = Logger::getInstance("main");
])],
[AC_MSG_RESULT([checking for log4cplus library... yes])],
[AC_MSG_RESULT([checking for log4cplus library... no])
AC_MSG_ERROR([Needs log4cplus library])]
)
dnl Determine the log4cplus version, used mainly for config.report.
AC_MSG_CHECKING([log4cplus version])
cat > conftest.cpp << EOF
#include <log4cplus/version.h>
AUTOCONF_LOG4CPLUS_VERSION=LOG4CPLUS_VERSION_STR
EOF
# The tabulation below is NOT an error: PLEASE keep it.
LOG4CPLUS_VERSION=`$CPPP $CPPFLAGS conftest.cpp | grep '^AUTOCONF_LOG4CPLUS_VERSION=' | $SED -e 's/^AUTOCONF_LOG4CPLUS_VERSION=//' -e 's/[[ ]]//g' -e 's/"//g' 2> /dev/null`
if test -z "$LOG4CPLUS_VERSION"; then
LOG4CPLUS_VERSION="unknown"
fi
$RM -f conftest.cpp
AC_MSG_RESULT([$LOG4CPLUS_VERSION])
CPPFLAGS=$CPPFLAGS_SAVED
LIBS=$LIBS_SAVED
# Older log4cplus versions (1.2.0) don't have the initializer.h header that
# would allow explicit initialization. Newer versions (2.0.4 for sure, possibly
# older as well) have it and it's recommended to use it. We detect whether
# it's present or not and do explicit initialization if possible.
CPPFLAGS_SAVED=$CPPFLAGS
CPPFLAGS="$LOG4CPLUS_INCLUDES $CPPFLAGS"
LIBS_SAVED="$LIBS"
LIBS="$LOG4CPLUS_LIBS $LIBS"
AC_MSG_CHECKING([log4cplus explicit initialization (log4cplus/initializer.h)])
AC_LINK_IFELSE(
[AC_LANG_PROGRAM([#include <log4cplus/initializer.h>],
[log4cplus::Initializer initializer;]
)],
[AC_MSG_RESULT([yes])
AC_DEFINE(LOG4CPLUS_INITIALIZER_H, [1], [Explicit initialization of log4cplus possible])],
[AC_MSG_RESULT(no)])
LIBS="$LIBS_SAVED"
CPPFLAGS=$CPPFLAGS_SAVED
#
# Configure Boost header path
#
AX_BOOST_FOR_KEA
# Boost offset_ptr is required in one library and not optional right now, so
# we unconditionally fail here if it doesn't work.
if test "$BOOST_OFFSET_PTR_WOULDFAIL" = "yes" -a X"$werror_ok" = X1; then
AC_MSG_ERROR([Failed to compile a required header file. Try upgrading Boost to 1.44 or higher (when using clang++) or specifying --without-werror. See the ChangeLog entry for Trac no. 2147 for more details.])
fi
if test "$BOOST_STATIC_ASSERT_WOULDFAIL" = "yes" -a X"$werror_ok" = X1; then
AC_MSG_ERROR([Failed to use Boost static assertions. Try upgrading Boost to 1.54 or higher (when using GCC 4.8) or specifying --without-werror. See trac ticket no. 3039 for more details.])
fi
# There's a known bug in FreeBSD ports for Boost that would trigger a false
# warning in build with g++ and -Werror (we exclude clang++ explicitly to
# avoid unexpected false positives).
if test "$BOOST_NUMERIC_CAST_WOULDFAIL" = "yes" -a X"$werror_ok" = X1 -a $CLANGPP = "no"; then