/
configure.ac
4950 lines (4529 loc) · 113 KB
/
configure.ac
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dnl -*-fundamental-*-
dnl Process this file with autoconf to produce a configure script.
m4_include([version.m4])
AC_PREREQ(2.61)
AC_INIT([ntp], [VERSION_NUMBER])
AC_CONFIG_MACRO_DIR([m4])
AC_CONFIG_AUX_DIR([.])
# Increment ntp_configure_cache_version by one for each change to
# configure.ac or .m4 files which invalidates cached values from
# previous versions.
#
# If the change affects cache variables used only by the main NTP
# configure.ac, then only its version number should be bumped, while
# the subdir configure.ac version numbers should be unchanged. The
# same is true for a test/variable that is used only by one subdir
# being changed incompatibly; only that subdir's cache version needs
# bumping.
#
# If a change affects variables shared by all NTP configure scripts,
# please bump the version numbers of all three. If you are not sure,
# the safe choice is to bump all three on any cache-invalidating change.
#
# In order to avoid the risk of version stamp collision between -stable
# and -dev branches, do not simply increment the version, instead use
# the date YYYYMMDD optionally with -HHMM if there is more than one
# bump in a day.
ntp_configure_cache_version=20091117
# When the cache version of config.cache and configure do not
# match, NTP_CACHEVERSION will flush the cache.
NTP_CACHEVERSION([main], [$ntp_configure_cache_version])
AM_INIT_AUTOMAKE
AC_CANONICAL_BUILD
AC_CANONICAL_HOST
dnl the 'build' machine is where we run configure and compile
dnl the 'host' machine is where the resulting stuff runs.
AC_DEFINE_UNQUOTED(STR_SYSTEM, "$host", [canonical system (cpu-vendor-os) of where we should run])
AM_CONFIG_HEADER([config.h])
dnl AC_ARG_PROGRAM
ac_cv_var_atom_ok=no
ac_cv_var_oncore_ok=no
ac_cv_var_parse_ok=no
ac_cv_var_ripe_ncc_ok=no
ac_cv_var_jupiter_ok=no
dnl Grab any initial CFLAGS so we can pick better defaults.
iCFLAGS="$CFLAGS"
dnl check these early to avoid autoconf warnings
AC_AIX
AC_MINIX
# So far, the only shared library we might use is libopts.
# It's a small library - we might as well use a static version of it.
AC_DISABLE_SHARED
dnl we need to check for cross compile tools for vxWorks here
AC_PROG_CC
# Ralf Wildenhues: With per-target flags we need CC_C_O
# AM_PROG_CC_C_O supersets AC_PROG_CC_C_O
AM_PROG_CC_C_O
AC_PROG_CPP
AC_PROG_YACC
# AC_PROG_CC_STDC has two functions. It attempts to find a compiler
# capable of C99, or failing that, for C89. CC is set afterward with
# the selected invocation, such as "gcc --std=gnu99". Also, the
# ac_cv_prog_cc_stdc variable is no if the compiler selected for CC
# does not accept C89.
AC_PROG_CC_STDC
case "$ac_cv_prog_cc_stdc" in
no)
AC_MSG_WARN([ANSI C89/ISO C90 is the minimum to compile NTP ]
[version 4.2.5 and higher.])
esac
# HMS: These need to be moved to AM_CPPFLAGS and/or AM_CFLAGS
case "$host" in
*-pc-cygwin*)
CFLAGS="$CFLAGS -DSYS_CYGWIN32"
;;
i386-sequent-sysv4)
case "$CC" in
cc)
CFLAGS="$CFLAGS -Wc,+abi-socket"
;;
esac
;;
*-*-mpeix*)
CPPFLAGS="$CPPFLAGS -DMPE -D_POSIX_SOURCE -D_SOCKET_SOURCE -I/SYSLOG/PUB"
LDFLAGS="$LDFLAGS -L/SYSLOG/PUB"
LIBS="$LIBS -lcurses"
;;
*-*-solaris*)
# see "man standards".
# -D_XOPEN_SOURCE=500 is probably OK for c89 and before
# -D_XOPEN_SOURCE=600 seems OK for c99
#CPPFLAGS="$CPPFLAGS -D_XOPEN_SOURCE=500 -D__EXTENSIONS__"
CPPFLAGS="$CPPFLAGS -D__EXTENSIONS__"
libxnet=-lxnet
;;
esac
NTP_OS_CFLAGS
NTP_DIR_SEP
NTP_VPATH_HACK
# NTP has (so far) been relying on leading-edge autogen.
# Therefore, by default:
# - use the version we ship with
# - do not install it
# - build a static copy (AC_DISABLE_SHARED - done earlier)
case "${enable_local_libopts+set}" in
set) ;;
*) enable_local_libopts=yes ;;
esac
case "${enable_libopts_install+set}" in
set) ;;
*) enable_libopts_install=no ;;
esac
LIBOPTS_CHECK(libopts)
AC_FUNC_FORK
AC_CACHE_CHECK(
[if $CC can handle @%:@warning],
ac_cv_cpp_warning,
[
AC_COMPILE_IFELSE(
AC_LANG_PROGRAM([], [#warning foo]),
[ac_cv_cpp_warning=yes],
[ac_cv_cpp_warning=no],
)
]
)
case "$ac_cv_cpp_warning" in
no)
AC_DEFINE([NO_OPTION_NAME_WARNINGS], [1], [Should we avoid @%:@warning on option name collisions?])
esac
case "$GCC" in
yes)
SAVED_CFLAGS_AC="$CFLAGS"
CFLAGS="$CFLAGS -Wstrict-overflow"
AC_CACHE_CHECK(
[if $CC can handle -Wstrict-overflow],
ac_cv_gcc_Wstrict_overflow,
[
AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM([], [])],
[ac_cv_gcc_Wstrict_overflow=yes],
[ac_cv_gcc_Wstrict_overflow=no]
)
]
)
CFLAGS="$SAVED_CFLAGS_AC"
$as_unset SAVED_CFLAGS_AC
#
# $ac_cv_gcc_Wstrict_overflow is tested later to add the
# flag to CFLAGS.
#
esac
case "$GCC" in
yes)
SAVED_CFLAGS_AC="$CFLAGS"
CFLAGS="$CFLAGS -Winit-self"
AC_CACHE_CHECK(
[if $CC can handle -Winit-self],
ac_cv_gcc_Winit_self,
[
AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM([], [])],
[ac_cv_gcc_Winit_self=yes],
[ac_cv_gcc_Winit_self=no]
)
]
)
CFLAGS="$SAVED_CFLAGS_AC"
$as_unset SAVED_CFLAGS_AC
#
# $ac_cv_gcc_Winit_self is tested later to add the
# flag to CFLAGS.
#
esac
# Expose a cross-compilation indicator to makefiles
AM_CONDITIONAL(NTP_CROSSCOMPILE, test $build != $host)
AC_MSG_CHECKING([for bin subdirectory])
AC_ARG_WITH(binsubdir,
AC_HELP_STRING([--with-binsubdir], [bin ={bin,sbin}]),
use_binsubdir="$withval", use_binsubdir="bin")
case "$use_binsubdir" in
bin)
;;
sbin)
;;
*)
AC_MSG_ERROR([<$use_binsubdir> is illegal - must be "bin" or "sbin"])
;;
esac
AC_MSG_RESULT($use_binsubdir)
BINSUBDIR=$use_binsubdir
AC_SUBST(BINSUBDIR)
AM_CONDITIONAL(NTP_BINSUBDIR_IS_BIN, test "bin" = "$BINSUBDIR")
AC_MSG_CHECKING([if we want to use arlib])
AC_ARG_WITH(arlib,
AC_HELP_STRING([--with-arlib], [- Compile the async resolver library?]),
[ans=$withval], [ans=no])
AC_MSG_RESULT([$ans])
if test -d $srcdir/arlib
then
case "$ans" in
yes)
ARLIB_DIR=arlib
AC_CONFIG_SUBDIRS(arlib)
;;
esac
fi
AC_SUBST(ARLIB_DIR)
AC_ARG_WITH(rpath,
AC_HELP_STRING([--without-rpath], [s Disable auto-added -R linker paths]),
[ans=$withval], [ans=x])
case "$ans" in
no)
need_dash_r=
;;
yes)
need_dash_r=1
;;
esac
# HMS: Why isn't this $build?
# Well, that depends on if we need this for the build toolchain or
# for info in the host executable...
# I still have no idea which way this should go, but nobody has complained.
case "$host" in
*-*-netbsd*)
case "$need_dash_r" in
no) ;;
*) need_dash_r=1
;;
esac
;;
*-*-solaris*)
case "$need_dash_r" in
no) ;;
*) need_dash_r=1
;;
esac
;;
esac
dnl we need to check for cross compile tools for vxWorks here
AC_PROG_AWK
AC_PROG_MAKE_SET
rm -f conftest*
case "$GCC" in
yes)
CFLAGS="$CFLAGS -Wall"
# CFLAGS="$CFLAGS -Wcast-align"
CFLAGS="$CFLAGS -Wcast-qual"
# CFLAGS="$CFLAGS -Wconversion"
# CFLAGS="$CFLAGS -Werror"
# CFLAGS="$CFLAGS -Wextra"
# CFLAGS="$CFLAGS -Wfloat-equal"
CFLAGS="$CFLAGS -Wmissing-prototypes"
CFLAGS="$CFLAGS -Wpointer-arith"
CFLAGS="$CFLAGS -Wshadow"
# CFLAGS="$CFLAGS -Wtraditional"
# CFLAGS="$CFLAGS -Wwrite-strings"
case "$ac_cv_gcc_Winit_self" in
yes)
CFLAGS="$CFLAGS -Winit-self"
esac
case "$ac_cv_gcc_Wstrict_overflow" in
yes)
CFLAGS="$CFLAGS -Wstrict-overflow"
esac
# -W[no-]strict-prototypes is added later depending on OpenSSL
esac
ac_busted_vpath_in_make=no
case "$build" in
*-*-irix6.1*) # 64 bit only
# busted vpath?
;;
*-*-irix6*) # 6.2 (and later?)
ac_busted_vpath_in_make=yes
;;
*-*-solaris2.5.1)
ac_busted_vpath_in_make=yes
;;
*-*-unicosmp*)
ac_busted_vpath_in_make=yes
;;
esac
case "$ac_busted_vpath_in_make$srcdir" in
no*) ;;
yes.) ;;
*) case "`${MAKE-make} -v -f /dev/null 2>/dev/null | grep 'GNU Make'`" in
'')
AC_MSG_ERROR([building outside of the main directory requires GNU make])
esac
esac
AC_SUBST(CFLAGS)dnl
AC_SUBST(LDFLAGS)dnl
m4_defun([_LT_AC_LANG_CXX_CONFIG], [:])
m4_defun([_LT_AC_LANG_F77_CONFIG], [:])
AC_PROG_LIBTOOL
AC_PROG_LN_S
AC_PROG_GCC_TRADITIONAL
AC_C_VOLATILE
AC_ISC_POSIX
AC_PATH_PROG(PATH_SH, sh)
AC_PATH_PROG(PATH_PERL, perl)
AC_ARG_WITH(net-snmp-config,
AC_HELP_STRING([--with-net-snmp-config], [+ =net-snmp-config]),
[ans=$withval], [ans=yes])
case "$ans" in
no) ;;
yes)
ans=net-snmp-config
;;
/*) ;;
*/*)
AC_MSG_ERROR([--with-net-snmp-config takes either a name or an absolute path])
;;
*)
;;
esac
PROG_NET_SNMP_CONFIG=$ans
AC_MSG_CHECKING([for net-snmp-config path])
case "$PROG_NET_SNMP_CONFIG" in
no) ;;
/*)
PATH_NET_SNMP_CONFIG=$PROG_NET_SNMP_CONFIG
;;
*) AC_PATH_PROG([PATH_NET_SNMP_CONFIG], [$PROG_NET_SNMP_CONFIG])
;;
esac
AC_MSG_RESULT([$PATH_NET_SNMP_CONFIG])
case "$host" in
*-*-vxworks*)
ac_link="$ac_link $VX_KERNEL"
;;
esac
AC_PROG_INSTALL
case "$host" in
*-pc-cygwin*)
AC_CHECK_LIB(advapi32, main)
;;
esac
AC_CHECK_FUNC([gethostent], ,
AC_SEARCH_LIBS([gethostent], [nsl], , , [$libxnet -lsocket]))
AC_CHECK_FUNC([openlog], ,
AC_SEARCH_LIBS([openlog], [gen], ,
AC_SEARCH_LIBS([openlog], [syslog], , , [$libxnet -lsocket])))
AC_SEARCH_LIBS([MD5Init], [md5 md])
AC_CHECK_FUNCS(MD5Init)
NTP_LINEEDITLIBS
dnl Digital UNIX V4.0 and Solaris 7 have POSIX.1c functions in -lrt
dnl Solaris 2.6 only has -lposix4; in Solaris 7, this is a symlink to -lrt,
dnl so only use one of them. Linux (glibc-2.1.2 and -2.2.2, at least)
dnl does Strange Things with extra processes using the Posix-compatibility
dnl real-time library, so we don't want to use it.
dnl
dnl 081118 Harlan got tired of looking for a way to get the sched*()
dnl functions to link OK with either cc or gcc.
case "$host" in
*-*-*linux*) ;;
*-*-osf4*) ;;
*-*-osf5*) ;;
*)
AC_CHECK_LIB(rt, sched_setscheduler, ,
AC_CHECK_LIB(posix4, sched_setscheduler))
;;
esac
AC_SEARCH_LIBS([setsockopt], [socket xnet])
AC_SEARCH_LIBS([res_init], [resolv], , , [-lsocket -lnsl])
case "$host" in
*-*-darwin*)
AC_CHECK_LIB([resolv],[res_9_init])
;;
esac
AC_HEADER_RESOLV
AC_CHECK_FUNCS(res_init __res_init)
AC_HEADER_STDC
AC_CHECK_HEADERS(bstring.h)
AC_CHECK_HEADER(dns_sd.h,
[AC_CHECK_LIB(dns_sd,
DNSServiceRegister,
[AC_DEFINE(HAVE_DNSREGISTRATION, 1,
[Use Rendezvous/DNS-SD registration])])])
case "$ac_cv_lib_dns_sd_DNSServiceRegister" in
yes) LIBS="-ldns_sd $LIBS" ;;
esac
AC_CHECK_HEADERS(errno.h fcntl.h ieeefp.h kvm.h math.h)
AC_CHECK_HEADERS(md5.h, [], [],
[#if HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
])
AC_CHECK_HEADERS(memory.h netdb.h poll.h)
AC_CHECK_HEADERS(sched.h sgtty.h stdlib.h string.h termio.h)
AC_CHECK_HEADERS(termios.h timepps.h timex.h unistd.h)
case "$host" in
*-*-aix*)
AC_CHECK_HEADERS(utmpx.h)
case "$ac_cv_header_utmpx_h" in
yes) ;;
*) AC_CHECK_HEADERS(utmp.h) ;;
esac
;;
*) AC_CHECK_HEADERS(utmp.h utmpx.h) ;;
esac
#
# On Suns only (so far) getpass() truncates the typed password to 8
# characters, but getpassphrase() allows up to 257. Most systems'
# getpass() does not truncate, at least not so as to affect ntpq and
# ntpdc password prompts.
#
# So check for getpassphrase(), but only on Sun operating systems.
#
case "$host" in
*-*-sunos*|*-*-solaris*)
AC_CHECK_FUNCS(getpassphrase)
esac
AC_CHECK_HEADERS(arpa/nameser.h)
AC_CHECK_HEADERS(sys/socket.h)
AC_CHECK_HEADERS(net/if.h, [], [],
[#if HAVE_SYS_SOCKET_H
#include <sys/socket.h>
#endif
])
AC_CHECK_HEADERS(net/if6.h)
AC_CHECK_HEADERS(net/route.h, [], [], [
#include <sys/types.h>
#include <sys/socket.h>
#include <net/if.h>
])
AC_CHECK_HEADERS(netinet/in_system.h netinet/in_systm.h)
AC_CHECK_HEADERS(netinet/in.h)
AC_CHECK_HEADERS(netinet/ip.h, [], [],
[#if HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#if HAVE_NETINET_IN_H
#include <netinet/in.h>
#endif
#if HAVE_NETINET_IN_SYSTM_H
#include <netinet/in_systm.h>
#endif
])
# Check for IPTOS_PREC
AC_CACHE_CHECK(
[IPPROTO_IP IP_TOS IPTOS_LOWDELAY],
ac_cv_ip_tos,
[
AC_EGREP_CPP(
[yes],
[
#if HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#if HAVE_NETINET_IP_H
#include <netinet/in.h>
#include <netinet/ip.h>
#endif
#if defined(IPPROTO_IP) && defined(IP_TOS) && defined(IPTOS_LOWDELAY)
yes
#endif
],
[ac_cv_ip_tos=yes],
[ac_cv_ip_tos=no]
)
]
)
case "$ac_cv_ip_tos" in
yes)
AC_DEFINE(HAVE_IPTOS_SUPPORT, 1, [Do we have IPTOS support?])
esac
AC_CHECK_HEADERS(netinfo/ni.h, [AC_DEFINE(HAVE_NETINFO, 1, [NetInfo support?])])
AC_CHECK_HEADERS(sun/audioio.h sys/audioio.h)
dnl AC_CHECK_HEADERS(sys/chudefs.h)
AC_CHECK_HEADERS(sys/clkdefs.h sys/file.h)
case "$host" in
*-*-sunos4*) ;;
*) AC_CHECK_HEADERS(sys/ioctl.h)
;;
esac
AC_CHECK_HEADERS(sys/ipc.h)
AC_CHECK_HEADERS(sys/lock.h sys/mman.h sys/modem.h sys/param.h sys/ppsclock.h)
# HMS: Check sys/proc.h and sys/resource.h after some others
AC_CHECK_HEADERS(sys/ppstime.h)
case "$ac_cv_header_sched_h" in
yes) ;;
*) AC_CHECK_HEADERS(sys/sched.h) ;;
esac
case "$host" in
*-*-sco*)
AC_CHECK_HEADERS(sys/sio.h)
;;
esac
# HMS: Check sys/shm.h after some others
AC_CHECK_HEADERS(sys/select.h sys/signal.h sys/sockio.h)
# HMS: Checked sys/socket.h earlier
case "$host" in
*-*-netbsd*) ;; # Bug 254
*) AC_CHECK_HEADERS(machine/soundcard.h sys/soundcard.h)
;;
esac
AC_CHECK_HEADERS(sys/stat.h sys/stream.h)
AC_CHECK_HEADERS(sys/stropts.h sys/sysctl.h sys/syssgi.h sys/systune.h)
AC_CHECK_HEADERS(sys/termios.h sys/time.h sys/signal.h)
AC_EGREP_CPP(yes,
[#if HAVE_SYS_TIME_H
# include <sys/time.h>
#endif
#if HAVE_ERRNO_H
# include <errno.h>
#endif
#include <sys/timepps.h>
#ifdef PPS_API_VERS_1
yes
#endif
], [AC_CHECK_HEADERS(sys/timepps.h, [], [],
[#if HAVE_SYS_TIME_H
# include <sys/time.h>
#endif
#if HAVE_ERRNO_H
# include <errno.h>
#endif
])
])
AC_CHECK_HEADERS(sys/timers.h sys/tpro.h sys/types.h sys/wait.h)
AC_HEADER_TIME
case "$host" in
*-convex-*)
AC_CHECK_HEADERS(/sys/sync/queue.h /sys/sync/sema.h)
;;
*-*-bsdi*)
AC_CHECK_HEADERS(machine/inline.h sys/pcl720.h sys/i8253.h)
;;
esac
case "$host" in
*-*-*linux*)
AC_CHECK_FUNCS(__adjtimex __ntp_gettime)
;;
esac
case "$ac_cv_func___adjtimex" in
yes) ;;
*)
AC_CHECK_LIB(elf, nlist) dnl Only needed for tickadj...
dnl AC_CHECK_LIB(kvm, main, , , -lelf)
AC_CHECK_LIB(kvm, main) dnl We already know about -lelf here...
AC_CHECK_LIB(ld, nlist)
AC_CHECK_LIB(mld, nlist)
AC_CHECK_HEADER(nlist.h,
[AC_DEFINE(NLIST_STRUCT, 1, [nlist stuff])
AC_CACHE_CHECK([for n_un in struct nlist], ac_cv_struct_nlist_n_un,
[AC_TRY_COMPILE([#include <nlist.h>],
[struct nlist n; n.n_un.n_name = 0;],
ac_cv_struct_nlist_n_un=yes, ac_cv_struct_nlist_n_un=no)])
if test $ac_cv_struct_nlist_n_un = yes; then
AC_DEFINE(NLIST_NAME_UNION, 1, [does struct nlist use a name union?])
fi
])dnl
;;
esac
dnl AC_CHECK_HEADERS(net/if.h, [], [],
dnl [#if HAVE_SYS_TYPES_H
dnl # include <sys/types.h>
dnl #endif
dnl #if HAVE_SYS_SOCKET_H
dnl # include <sys/socket.h>
dnl #endif
dnl ])
AC_CHECK_HEADERS(sys/proc.h, [], [],
[#if HAVE_SYS_TYPES_H
# include <sys/types.h>
#endif
#if HAVE_SYS_TIME_H
# include <sys/time.h>
#endif
])
AC_CHECK_HEADERS(sys/resource.h, [], [],
[#if HAVE_SYS_TIME_H
# include <sys/time.h>
#endif
])
AC_CHECK_HEADERS(sys/shm.h, [], [],
[#if HAVE_SYS_TYPES_H
# include <sys/types.h>
#endif
#if HAVE_SYS_IPC_H
# include <sys/ipc.h>
#endif
])
AC_CHECK_HEADERS(sys/timex.h, [], [],
[#if HAVE_SYS_TIME_H
# include <sys/time.h>
#endif
])
AC_CHECK_HEADERS(resolv.h, [], [],
[#if HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#if HAVE_NETINET_IN_H
#include <netinet/in.h>
#endif
#if HAVE_ARPA_NAMESER_H
#include <arpa/nameser.h>
#endif
])
AC_CACHE_CHECK([for basic volatile support], ac_cv_c_volatile,
[AC_TRY_COMPILE([],[
volatile int x;],
ac_cv_c_volatile=yes,
ac_cv_c_volatile=no)
])
case "$ac_cv_c_volatile" in
yes)
;;
*) AC_DEFINE(volatile, , [Does the compiler like "volatile"?])
;;
esac
AC_C_CONST
AC_C_BIGENDIAN
AC_TYPE_SIGNAL
AC_TYPE_OFF_T
AC_TYPE_SIZE_T
AC_CHECK_TYPE(time_t, long)
AC_CHECK_SIZEOF(time_t)
AC_CHECK_TYPES(uintptr_t)
AH_VERBATIM([TYPEDEF_UINTPTR_T],
[/* Provide a typedef for uintptr_t? */
#ifndef HAVE_UINTPTR_T
typedef unsigned int uintptr_t;
#define HAVE_UINTPTR_T 1
#endif])
AC_STRUCT_TM
AC_CACHE_CHECK([for u_int8_t], ac_cv_type_u_int8_t,
[AC_TRY_COMPILE([#include <sys/types.h>],
[u_int8_t len = 42; return 0;],
ac_cv_type_u_int8_t=yes,
ac_cv_type_u_int8_t=no)
])
if test $ac_cv_type_u_int8_t = yes; then
AC_DEFINE(HAVE_TYPE_U_INT8_T, 1, [Does u_int8_t exist?])
fi
AC_CACHE_CHECK([for u_int64_t], ac_cv_type_u_int64_t,
[AC_TRY_COMPILE([#include <sys/types.h>],
[u_int64_t len = 42; return 0;],
ac_cv_type_u_int64_t=yes,
ac_cv_type_u_int64_t=no)
])
if test $ac_cv_type_u_int64_t = yes; then
AC_DEFINE(HAVE_TYPE_U_INT64_T, 1, [Does u_int64_t exist?])
fi
AC_CACHE_CHECK([for a fallback value for HZ], ac_cv_var_default_hz,
[ac_cv_var_default_hz=100
case "$host" in
alpha*-dec-osf4*|alpha*-dec-osf5*)
ac_cv_var_default_hz=1024
;;
mips-dec-ultrix4*)
ac_cv_var_default_hz=256
;;
esac])
AC_DEFINE_UNQUOTED(DEFAULT_HZ, $ac_cv_var_default_hz, [What is the fallback value for HZ?])
AC_CACHE_CHECK([if we need to override the system's value for HZ], ac_cv_var_override_hz,
[ac_cv_var_override_hz=no
case "$host" in
alpha*-dec-osf4*|alpha*-dec-osf5*)
ac_cv_var_override_hz=yes
;;
mips-dec-ultrix4*)
ac_cv_var_override_hz=yes
;;
*-*-freebsd*)
ac_cv_var_override_hz=yes
;;
*-*-sunos4*)
ac_cv_var_override_hz=yes
;;
*-*-kfreebsd*)
ac_cv_var_override_hz=yes
;;
esac])
case "$ac_cv_var_override_hz" in
yes)
AC_DEFINE(OVERRIDE_HZ, 1, [Do we need to override the system's idea of HZ?])
;;
esac
dnl AC_CACHE_CHECK(ut_host in struct utmp, ac_cv_func_ut_host_in_utmp,
dnl [AC_TRY_LINK([#include <sys/types.h>
dnl #include <utmp.h>], [struct utmp ut; ut.ut_host;],
dnl ac_cv_func_ut_host_in_utmp=yes, ac_cv_func_ut_host_in_utmp=no)])
dnl if test $su_cv_func_ut_host_in_utmp = yes; then
dnl AC_DEFINE(HAVE_UT_HOST)
dnl fi
dnl AC_MSG_CHECKING(if we can get the system boot time)
dnl AC_CACHE_VAL(su_cv_have_boot_time,
dnl [AC_EGREP_CPP(yes,
dnl [#ifdef HAVE_UTMPX_H
dnl #include <utmpx.h>
dnl #else
dnl #include <utmp.h>
dnl #endif
dnl #ifdef BOOT_TIME
dnl yes
dnl #endif
dnl ], su_cv_have_boot_time=yes, su_cv_have_boot_time=no)])
dnl AC_MSG_RESULT($su_cv_have_boot_time)
AC_CACHE_CHECK([for struct rt_msghdr], ac_cv_struct_rt_msghdr,
[AC_TRY_COMPILE([
#include <sys/types.h>
#include <sys/socket.h>
#include <net/if.h>
#include <net/route.h>],
[struct rt_msghdr p;],
ac_cv_struct_rt_msghdr=yes,
ac_cv_struct_rt_msghdr=no)
])
AC_CACHE_CHECK([for struct rtattr], ac_cv_struct_rtattr,
[AC_TRY_COMPILE([
#include <stddef.h>
#include <linux/rtnetlink.h>],
[struct rtattr p;],
ac_cv_struct_rtattr=yes,
ac_cv_struct_rtattr=no)
])
if test $ac_cv_struct_rt_msghdr = yes -o $ac_cv_struct_rtattr = yes; then
AC_DEFINE(HAS_ROUTING_SOCKET, 1, [Do we have a routing socket (struct rt_msghdr)?])
if test $ac_cv_struct_rtattr = yes; then
AC_DEFINE(HAVE_RTNETLINK, 1, [Do we have Linux routing socket?])
fi
fi
AC_CACHE_CHECK(
[struct sigaction for sa_sigaction],
ac_cv_struct_sigaction_has_sa_sigaction,
[
AC_TRY_COMPILE(
[#include <signal.h>],
[struct sigaction act; act.sa_sigaction = 0;],
ac_cv_struct_sigaction_has_sa_sigaction=yes,
ac_cv_struct_sigaction_has_sa_sigaction=no
)
]
)
if test $ac_cv_struct_sigaction_has_sa_sigaction = yes; then
AC_DEFINE(HAVE_SA_SIGACTION_IN_STRUCT_SIGACTION, 1, [Obvious...])
fi
AC_CACHE_CHECK([for struct ppsclockev], ac_cv_struct_ppsclockev,
[AC_TRY_COMPILE([
#include <sys/types.h>
#ifdef HAVE_SYS_TERMIOS_H
# include <sys/termios.h>
#endif
#ifdef HAVE_SYS_TIME_H
# include <sys/time.h>
#endif
#ifdef HAVE_SYS_PPSCLOCK_H
# include <sys/ppsclock.h>
#endif],[
extern struct ppsclockev *pce;
return pce->serial;],
ac_cv_struct_ppsclockev=yes,
ac_cv_struct_ppsclockev=no)
])
if test $ac_cv_struct_ppsclockev = yes; then
AC_DEFINE(HAVE_STRUCT_PPSCLOCKEV, 1, [Does a system header define struct ppsclockev?])
fi
AC_CACHE_CHECK(
[for struct sockaddr_storage],
ntp_cv_sockaddr_storage,
[
AC_TRY_COMPILE(
[
#ifdef HAVE_SYS_TYPES_H
# include <sys/types.h>
#endif
#ifdef HAVE_SYS_SOCKET_H
# include <sys/socket.h>
#endif
#ifdef HAVE_NETINET_IN_H
# include <netinet/in.h>
#endif
],
[
struct sockaddr_storage n;
],
[ntp_cv_sockaddr_storage="yes"],
[ntp_cv_sockaddr_storage="no"]
)
]
)
case "$ntp_cv_sockaddr_storage" in
yes)
AC_DEFINE(HAVE_STRUCT_SOCKADDR_STORAGE, 1, [Does a system header define struct sockaddr_storage?])
esac
AC_CACHE_CHECK(
[for sockaddr_storage.ss_family],
ntp_cv_have_ss_family,
[
AC_TRY_COMPILE(
[
#ifdef HAVE_SYS_TYPES_H
# include <sys/types.h>
#endif
#ifdef HAVE_SYS_SOCKET_H
# include <sys/socket.h>
#endif
#ifdef HAVE_NETINET_IN_H
# include <netinet/in.h>
#endif
],
[
struct sockaddr_storage s;
s.ss_family = 1;
],
[ntp_cv_have_ss_family="yes"],
[ntp_cv_have_ss_family="no"]
)
]
)
case "$ntp_cv_have_ss_family" in
no)
AC_CACHE_CHECK(
[for sockaddr_storage.__ss_family],
ntp_cv_have___ss_family,
[
AC_TRY_COMPILE(
[
#ifdef HAVE_SYS_TYPES_H
# include <sys/types.h>
#endif
#ifdef HAVE_SYS_SOCKET_H
# include <sys/socket.h>
#endif
#ifdef HAVE_NETINET_IN_H
# include <netinet/in.h>
#endif
],
[
struct sockaddr_storage s;
s.__ss_family = 1;
],
[ntp_cv_have___ss_family="yes"],
[ntp_cv_have___ss_family="no"]
)
]
)
case "$ntp_cv_have___ss_family" in
yes)
AC_DEFINE(HAVE___SS_FAMILY_IN_SS, 1, [Does struct sockaddr_storage have __ss_family?])
esac
esac
AH_VERBATIM(
[HAVE___SS_FAMILY_IN_SS_VERBATIM],
[
/* Handle sockaddr_storage.__ss_family */
#ifdef HAVE___SS_FAMILY_IN_SS
# define ss_family __ss_family
#endif /* HAVE___SS_FAMILY_IN_SS */
]
)
AC_CACHE_CHECK(
[for sockaddr_storage.ss_len],
ntp_cv_have_ss_len,
[
AC_TRY_COMPILE(
[
#ifdef HAVE_SYS_TYPES_H
# include <sys/types.h>
#endif
#ifdef HAVE_SYS_SOCKET_H
# include <sys/socket.h>
#endif
#ifdef HAVE_NETINET_IN_H
# include <netinet/in.h>
#endif
],
[
struct sockaddr_storage s;
s.ss_len = 1;
],
[ntp_cv_have_ss_len="yes"],
[ntp_cv_have_ss_len="no"]
)
]
)
case "$ntp_cv_have_ss_len" in
no)
AC_CACHE_CHECK(
[for sockaddr_storage.__ss_len],
ntp_cv_have___ss_len,
[
AC_TRY_COMPILE(
[
#ifdef HAVE_SYS_TYPES_H
# include <sys/types.h>
#endif
#ifdef HAVE_SYS_SOCKET_H
# include <sys/socket.h>
#endif
#ifdef HAVE_NETINET_IN_H
# include <netinet/in.h>
#endif
],
[
struct sockaddr_storage s;
s.__ss_len = 1;
],
[ntp_cv_have___ss_len="yes"],
[ntp_cv_have___ss_len="no"]
)
]
)
case "$ntp_cv_have___ss_len" in
yes)
AC_DEFINE(HAVE___SS_LEN_IN_SS, 1, [Does struct sockaddr_storage have __ss_len?])
esac
esac
AH_VERBATIM(
[HAVE___SS_LEN_IN_SS_VERBATIM],
[
/* Handle sockaddr_storage.__ss_len */
#ifdef HAVE___SS_LEN_IN_SS
# define ss_len __ss_len