chrony/configure
Miroslav Lichvar ec4542bbe4 sys: convert Linux driver to use generic offset functions
Strip all slewing code (adjtime(), freq locked nano PLL, fast tick
slewing) from the Linux driver and use the new generic frequency only
slewing instead. The advantages include stable clock control with very
short update intervals, good control of the slewing frequency, cheap
cooking of raw time stamps and unlimited frequency offset.
2014-05-20 17:14:33 +02:00

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#!/bin/sh
# =======================================================================
#
# chronyd/chronyc - Programs for keeping computer clocks accurate.
#
# Copyright (C) Richard P. Curnow 1997-2003
# Copyright (C) Miroslav Lichvar 2009, 2012
#
# =======================================================================
rm -f config.h config.log
# This configure script determines the operating system type and version
if [ "x${CC}" = "x" ]; then
MYCC="gcc"
else
MYCC="${CC}"
fi
if [ "x${CFLAGS}" = "x" ]; then
MYCFLAGS="-O2 -g"
else
MYCFLAGS="${CFLAGS}"
fi
MYCPPFLAGS="${CPPFLAGS}"
if [ "x${MYCC}" = "xgcc" ]; then
MYCFLAGS="${MYCFLAGS} -Wmissing-prototypes -Wall"
fi
MYLDFLAGS="${LDFLAGS}"
# ======================================================================
# FUNCTIONS
#{{{ test_code
test_code () {
name=$1
headers=$2
cflags=$3
ldflags=$4
code=$5
echo -n "Checking for $name : "
(
for h in $headers; do
echo "#include <$h>"
done
echo "int main(int argc, char **argv) {"
echo "$code"
echo "return 0; }"
) > docheck.c
echo "docheck.c:" >> config.log
cat docheck.c >> config.log
echo $MYCC $MYCFLAGS $MYCPPFLAGS $cflags -o docheck docheck.c $ldflags \
$MYLDFLAGS >> config.log
$MYCC $MYCFLAGS $MYCPPFLAGS $cflags -o docheck docheck.c $ldflags \
$MYLDFLAGS >> config.log 2>&1
if [ $? -eq 0 ]
then
echo "Yes"
result=0
else
echo "No"
result=1
fi
rm -f docheck.c docheck
echo >> config.log
return $result
}
#}}}
#{{{ usage
usage () {
cat <<EOF
\`configure' configures this package to adapt to many kinds of systems.
Usage: ./configure [OPTION]...
Defaults for the options are specified in brackets.
Configuration:
-h, --help display this help and exit
Installation directories:
--prefix=PREFIX install architecture-independent files in PREFIX
[/usr/local]
--exec-prefix=EPREFIX install architecture-dependent files in EPREFIX
[PREFIX]
By default, \`make install' will install all the files in
\`/usr/local/bin', \`/usr/local/lib' etc. You can specify
an installation prefix other than \`/usr/local' using \`--prefix',
for instance \`--prefix=$HOME'.
For better control, use the options below.
--disable-readline Disable line editing support
--without-readline Don't use GNU readline even if it is available
--without-editline Don't use editline even if it is available
--readline-dir=DIR Specify parent of readline include and lib directories
--readline-inc-dir=DIR Specify where readline include directory is
--readline-lib-dir=DIR Specify where readline lib directory is
--with-ncurses-library=DIR Specify where ncurses lib directory is
--without-nss Don't use NSS even if it is available
--without-tomcrypt Don't use libtomcrypt even if it is available
--disable-ipv6 Disable IPv6 support
--disable-phc Disable PHC support
--disable-pps Disable PPS API support
--disable-rtc Don't include RTC even on Linux
--disable-linuxcaps Disable Linux capabilities support
--disable-asyncdns Disable asynchronous name resolving
--disable-forcednsretry Don't retry on permanent DNS error
--with-user=USER Specify default chronyd user [root]
--with-sendmail=PATH Path to sendmail binary [/usr/lib/sendmail]
--enable-debug Enable debugging support
Fine tuning of the installation directories:
--sysconfdir=DIR chrony.conf location [/etc]
--bindir=DIR user executables [EPREFIX/bin]
--sbindir=DIR system admin executables [EPREFIX/sbin]
--datarootdir=DIR data root [PREFIX/share]
--infodir=DIR info documentation [DATAROOTDIR/info]
--mandir=DIR man documentation [DATAROOTDIR/man]
--docdir=DIR documentation root [DATAROOTDIR/doc/chrony]
--localstatedir=DIR modifiable single-machine data [/var]
--chronyvardir=DIR location for chrony data [LOCALSTATEDIR/lib/chrony]
Overriding system detection when cross-compiling:
--host-system=OS Specify system name (uname -s)
--host-release=REL Specify system release (uname -r)
--host-machine=CPU Specify machine (uname -m)
Some influential environment variables:
CC C compiler command
CFLAGS C compiler flags
CPPFLAGS C preprocessor flags, e.g. -I<include dir> if you have
headers in a nonstandard directory <include dir>
LDFLAGS linker flags, e.g. -L<lib dir> if you have libraries in a
nonstandard directory <lib dir>
Use these variables to override the choices made by \`configure' or to help
it to find libraries and programs with nonstandard names/locations.
EOF
}
#}}}
#{{{
add_def () {
if [ "x$2" = "x" ]; then
echo "#define $1 1" >> config.h
else
echo "#define $1 $2" >> config.h
fi
}
#}}}
# ======================================================================
OPERATINGSYSTEM=`uname -s`
VERSION=`uname -r`
MACHINE=`uname -m`
EXTRA_LIBS=""
EXTRA_CLI_LIBS=""
EXTRA_OBJECTS=""
EXTRA_DEFS=""
SYSDEFS=""
debug=0
feat_readline=1
try_readline=1
try_editline=1
try_nss=1
try_tomcrypt=1
feat_rtc=1
try_rtc=0
feat_linuxcaps=1
try_linuxcaps=0
readline_lib=""
readline_inc=""
ncurses_lib=""
feat_ipv6=1
feat_phc=1
try_phc=0
feat_pps=1
try_setsched=0
try_lockmem=0
feat_asyncdns=1
feat_forcednsretry=1
default_user="root"
mail_program="/usr/lib/sendmail"
for option
do
case "$option" in
--enable-debug )
debug=1
;;
--disable-readline )
feat_readline=0
;;
--without-readline )
try_readline=0
;;
--without-editline )
try_editline=0
;;
--with-readline-library=* )
readline_lib=-L`echo $option | sed -e 's/^.*=//;'`
;;
--with-readline-includes=* )
readline_inc=-I`echo $option | sed -e 's/^.*=//;'`
;;
--with-ncurses-library=* )
ncurses_lib=-L`echo $option | sed -e 's/^.*=//;'`
;;
--prefix=* | --install_prefix=* )
SETPREFIX=`echo $option | sed -e 's/[^=]*=//;'`
;;
--exec-prefix=* )
SETEPREFIX=`echo $option | sed -e 's/[^=]*=//;'`
;;
--sysconfdir=* )
SETSYSCONFDIR=`echo $option | sed -e 's/^.*=//;'`
;;
--bindir=* )
SETBINDIR=`echo $option | sed -e 's/^.*=//;'`
;;
--sbindir=* )
SETSBINDIR=`echo $option | sed -e 's/^.*=//;'`
;;
--datarootdir=* )
SETDATAROOTDIR=`echo $option | sed -e 's/^.*=//;'`
;;
--infodir=* )
SETINFODIR=`echo $option | sed -e 's/^.*=//;'`
;;
--mandir=* )
SETMANDIR=`echo $option | sed -e 's/^.*=//;'`
;;
--docdir=* )
SETDOCDIR=`echo $option | sed -e 's/^.*=//;'`
;;
--localstatedir=* )
SETLOCALSTATEDIR=`echo $option | sed -e 's/^.*=//;'`
;;
--chronyvardir=* )
SETCHRONYVARDIR=`echo $option | sed -e 's/^.*=//;'`
;;
--disable-rtc)
feat_rtc=0
;;
--disable-ipv6)
feat_ipv6=0
;;
--disable-phc)
feat_phc=0
;;
--disable-pps)
feat_pps=0
;;
--disable-linuxcaps)
feat_linuxcaps=0
;;
--disable-asyncdns)
feat_asyncdns=0
;;
--disable-forcednsretry)
feat_forcednsretry=0
;;
--with-user=* )
default_user=`echo $option | sed -e 's/^.*=//;'`
;;
--with-sendmail=* )
mail_program=`echo $option | sed -e 's/^.*=//;'`
;;
--without-nss )
try_nss=0
;;
--without-tomcrypt )
try_tomcrypt=0
;;
--host-system=* )
OPERATINGSYSTEM=`echo $option | sed -e 's/^.*=//;'`
;;
--host-release=* )
VERSION=`echo $option | sed -e 's/^.*=//;'`
;;
--host-machine=* )
MACHINE=`echo $option | sed -e 's/^.*=//;'`
;;
--help | -h )
usage
exit 0
;;
* )
echo "Unrecognized option : " $option
esac
done
SYSTEM=${OPERATINGSYSTEM}-${MACHINE}
case $SYSTEM in
SunOS-sun4* )
case $VERSION in
4.* )
EXTRA_OBJECTS="sys_sunos.o strerror.o"
EXTRA_LIBS="-lkvm"
add_def SUNOS
echo "Configuring for SunOS (" $SYSTEM "version" $VERSION ")"
;;
5.* )
EXTRA_OBJECTS="sys_solaris.o"
EXTRA_LIBS="-lsocket -lnsl -lkvm -lelf"
EXTRA_CLI_LIBS="-lsocket -lnsl"
add_def SOLARIS
echo "Configuring for Solaris (" $SYSTEM "SunOS version" $VERSION ")"
;;
esac
;;
Linux* )
EXTRA_OBJECTS="sys_generic.o sys_linux.o wrap_adjtimex.o"
try_linuxcaps=1
try_rtc=1
try_setsched=1
try_lockmem=1
try_phc=1
add_def LINUX
echo "Configuring for " $SYSTEM
if [ "${MACHINE}" = "alpha" ]; then
echo "Enabling -mieee"
# FIXME: Should really test for GCC
MYCFLAGS="$MYCFLAGS -mieee"
fi
;;
BSD/386-i[3456]86|FreeBSD-i386|FreeBSD-amd64 )
# Antti Jrvinen <costello@iki.fi> reported that this system can
# be supported with the SunOS 4.x driver files.
EXTRA_OBJECTS="sys_sunos.o strerror.o"
EXTRA_LIBS="-lkvm"
add_def SUNOS
echo "Configuring for $SYSTEM (using SunOS driver)"
;;
NetBSD-* )
EXTRA_OBJECTS="sys_netbsd.o"
EXTRA_LIBS="-lkvm"
SYSDEFS=""
echo "Configuring for $SYSTEM"
;;
SunOS-i86pc* )
# Doug Woodward <dougw@whistler.com> reported that this configuration
# works for Solaris 2.8 / SunOS 5.8 on x86 platforms
EXTRA_OBJECTS="sys_solaris.o"
EXTRA_LIBS="-lsocket -lnsl -lkvm -lelf"
EXTRA_CLI_LIBS="-lsocket -lnsl"
add_def SOLARIS
echo "Configuring for Solaris (" $SYSTEM "SunOS version" $VERSION ")"
;;
CYGWIN32_NT-i[3456]86 )
EXTRA_OBJECTS="sys_winnt.o"
EXTRA_LIBS=""
add_def WINNT
echo "Configuring for Windows NT (Cygwin32)"
;;
* )
echo "Sorry, I don't know how to build this software on your system."
exit 1
;;
esac
MATHCODE='return (int) pow(2.0, log(sqrt((double)argc)));'
if test_code 'math' 'math.h' '' '' "$MATHCODE"; then
LIBS=""
else
if test_code 'math in -lm' 'math.h' '' '-lm' "$MATHCODE"; then
LIBS="-lm"
else
echo "Can't compile/link a program which uses sqrt(), log(), pow(), bailing out"
exit 1
fi
fi
if test_code '<stdint.h>' 'stdint.h' '' '' ''; then
add_def HAS_STDINT_H
fi
if test_code '<inttypes.h>' 'inttypes.h' '' '' ''; then
add_def HAS_INTTYPES_H
fi
if [ $feat_ipv6 = "1" ] && \
test_code 'IPv6 support' 'arpa/inet.h sys/socket.h netinet/in.h' '' '' '
struct sockaddr_in6 n;
char p[100];
n.sin6_addr = in6addr_any;
return !inet_ntop(AF_INET6, &n.sin6_addr.s6_addr, p, sizeof(p));'
then
add_def HAVE_IPV6
if test_code 'in6_pktinfo' 'sys/socket.h netinet/in.h' '' '' '
return sizeof(struct in6_pktinfo);'
then
add_def HAVE_IN6_PKTINFO
else
if test_code 'in6_pktinfo with _GNU_SOURCE' 'sys/socket.h netinet/in.h' \
'-D_GNU_SOURCE' '' 'return sizeof(struct in6_pktinfo);'
then
add_def _GNU_SOURCE
add_def HAVE_IN6_PKTINFO
fi
fi
fi
if test_code 'getaddrinfo()' 'sys/types.h sys/socket.h netdb.h' '' '' \
'return getaddrinfo(0, 0, 0, 0);'
then
add_def HAVE_GETADDRINFO
fi
if [ $feat_asyncdns = "1" ] && \
test_code 'pthread' 'pthread.h' '-pthread' '' \
'return pthread_create(NULL, NULL, NULL, NULL);'
then
add_def FEAT_ASYNCDNS
add_def USE_PTHREAD_ASYNCDNS
MYCFLAGS="$MYCFLAGS -pthread"
fi
timepps_h=""
if [ $feat_pps = "1" ]; then
if test_code '<sys/timepps.h>' 'sys/timepps.h' '' '' ''; then
timepps_h="sys/timepps.h"
add_def HAVE_SYS_TIMEPPS_H
else
if test_code '<timepps.h>' 'timepps.h' '' '' ''; then
timepps_h="timepps.h"
add_def HAVE_TIMEPPS_H
fi
fi
fi
if [ "x$timepps_h" != "x" ] && \
test_code 'PPSAPI' "string.h $timepps_h" '' '' '
pps_handle_t h;
pps_info_t i;
struct timespec ts;
return time_pps_fetch(h, PPS_TSFMT_TSPEC, &i, &ts);'
then
add_def HAVE_PPSAPI
fi
if [ $feat_linuxcaps = "1" ] && [ $try_linuxcaps = "1" ] && \
test_code \
linuxcaps \
'sys/types.h pwd.h sys/prctl.h sys/capability.h grp.h' \
'' '-lcap' \
'prctl(PR_SET_KEEPCAPS, 1);cap_set_proc(cap_from_text("cap_sys_time=ep"));'
then
add_def FEAT_LINUXCAPS
EXTRA_LIBS="$EXTRA_LIBS -lcap"
fi
if [ $feat_rtc = "1" ] && [ $try_rtc = "1" ] && \
test_code '<linux/rtc.h>' 'sys/ioctl.h linux/rtc.h' '' '' \
'ioctl(1, RTC_UIE_ON&RTC_UIE_OFF&RTC_RD_TIME&RTC_SET_TIME, 0&RTC_UF);'
then
EXTRA_OBJECTS="$EXTRA_OBJECTS rtc_linux.o"
add_def FEAT_RTC
fi
if [ $feat_phc = "1" ] && [ $try_phc = "1" ] && \
test_code '<linux/ptp_clock.h>' 'sys/ioctl.h linux/ptp_clock.h' '' '' \
'ioctl(1, PTP_CLOCK_GETCAPS, 0);'
then
if test_code 'clock_gettime()' 'time.h' '' '' 'clock_gettime(0, NULL);'; then
add_def FEAT_PHC
else
if test_code 'clock_gettime() in -lrt' 'time.h' '' '-lrt' \
'clock_gettime(0, NULL);'
then
EXTRA_LIBS="$EXTRA_LIBS -lrt"
add_def FEAT_PHC
fi
fi
fi
if [ $try_setsched = "1" ] && \
test_code \
'sched_setscheduler()' \
'sched.h' '' '' '
struct sched_param sched;
sched_get_priority_max(SCHED_FIFO);
sched_setscheduler(0, SCHED_FIFO, &sched);'
then
add_def HAVE_SCHED_SETSCHEDULER
fi
if [ $try_lockmem = "1" ] && \
test_code \
'mlockall()' \
'sys/mman.h sys/resource.h' '' '' '
struct rlimit rlim;
setrlimit(RLIMIT_MEMLOCK, &rlim);
mlockall(MCL_CURRENT|MCL_FUTURE);'
then
add_def HAVE_MLOCKALL
fi
if [ $feat_forcednsretry = "1" ]
then
add_def FORCE_DNSRETRY
fi
READLINE_COMPILE=""
READLINE_LINK=""
if [ $feat_readline = "1" ]; then
if [ $try_editline = "1" ]; then
if test_code editline 'stdio.h editline/readline.h' \
"$readline_inc" "$readline_lib -ledit" \
'add_history(readline("prompt"));'
then
add_def FEAT_READLINE
add_def USE_EDITLINE
READLINE_COMPILE="$readline_inc"
READLINE_LINK="$readline_lib -ledit"
fi
fi
if [ "x$READLINE_LINK" = "x" ] && [ $try_readline = "1" ]; then
if test_code readline 'stdio.h readline/readline.h readline/history.h' \
"$readline_inc" "$readline_lib $ncurses_lib -lreadline" \
'add_history(readline("prompt"));'
then
add_def FEAT_READLINE
READLINE_COMPILE="$readline_inc"
READLINE_LINK="$readline_lib $ncurses_lib -lreadline"
fi
fi
if [ "x$READLINE_LINK" = "x" ] && [ $try_readline = "1" ]; then
if test_code 'readline with -lncurses' \
'stdio.h readline/readline.h readline/history.h' \
"$readline_inc" "$readline_lib $ncurses_lib -lreadline -lncurses" \
'add_history(readline("prompt"));'
then
add_def FEAT_READLINE
READLINE_COMPILE="$readline_inc"
READLINE_LINK="$readline_lib $ncurses_lib -lreadline -lncurses"
fi
fi
EXTRA_CLI_LIBS="$EXTRA_CLI_LIBS $READLINE_LINK"
fi
HASH_OBJ="hash_intmd5.o"
HASH_COMPILE=""
HASH_LINK=""
if [ $try_nss = "1" ]; then
test_cflags="`pkg-config --cflags nss 2> /dev/null`"
test_link="`pkg-config --libs-only-L nss 2> /dev/null` -lfreebl3"
if test_code 'NSS' 'nss.h hasht.h nsslowhash.h' \
"$test_cflags" "$test_link" \
'NSSLOWHASH_Begin(NSSLOWHASH_NewContext(NSSLOW_Init(), HASH_AlgSHA512));'
then
HASH_OBJ="hash_nss.o"
HASH_COMPILE="$test_cflags"
HASH_LINK="$test_link"
LIBS="$LIBS $HASH_LINK"
add_def GENERATE_SHA1_KEY
fi
fi
if [ "x$HASH_LINK" = "x" ] && [ $try_tomcrypt = "1" ]; then
if test_code 'tomcrypt' 'tomcrypt.h' '-I/usr/include/tomcrypt' '-ltomcrypt' \
'hash_memory_multi(find_hash("md5"), NULL, NULL, NULL, 0, NULL, 0);'
then
HASH_OBJ="hash_tomcrypt.o"
HASH_COMPILE="-I/usr/include/tomcrypt"
HASH_LINK="-ltomcrypt"
LIBS="$LIBS $HASH_LINK"
add_def GENERATE_SHA1_KEY
fi
fi
SYSCONFDIR=/etc
if [ "x$SETSYSCONFDIR" != "x" ]; then
SYSCONFDIR=$SETSYSCONFDIR
fi
PREFIX=/usr/local
if [ "x$SETPREFIX" != "x" ]; then
PREFIX=$SETPREFIX
fi
EPREFIX=${PREFIX}
if [ "x$SETEPREFIX" != "x" ]; then
EPREFIX=$SETEPREFIX
fi
BINDIR=${EPREFIX}/bin
if [ "x$SETBINDIR" != "x" ]; then
BINDIR=$SETBINDIR
fi
SBINDIR=${EPREFIX}/sbin
if [ "x$SETSBINDIR" != "x" ]; then
SBINDIR=$SETSBINDIR
fi
DATAROOTDIR=${PREFIX}/share
if [ "x$SETDATAROOTDIR" != "x" ]; then
DATAROOTDIR=$SETDATAROOTDIR
fi
INFODIR=${DATAROOTDIR}/info
if [ "x$SETINFODIR" != "x" ]; then
INFODIR=$SETINFODIR
fi
MANDIR=${DATAROOTDIR}/man
if [ "x$SETMANDIR" != "x" ]; then
MANDIR=$SETMANDIR
fi
DOCDIR=${DATAROOTDIR}/doc/chrony
if [ "x$SETDOCDIR" != "x" ]; then
DOCDIR=$SETDOCDIR
fi
LOCALSTATEDIR=/var
if [ "x$SETLOCALSTATEDIR" != "x" ]; then
LOCALSTATEDIR=$SETLOCALSTATEDIR
fi
CHRONYVARDIR=${LOCALSTATEDIR}/lib/chrony
if [ "x$SETCHRONYVARDIR" != "x" ]; then
CHRONYVARDIR=$SETCHRONYVARDIR
fi
add_def DEBUG $debug
add_def DEFAULT_CONF_FILE "\"$SYSCONFDIR/chrony.conf\""
add_def DEFAULT_USER "\"$default_user\""
add_def MAIL_PROGRAM "\"$mail_program\""
if [ -f version.txt ]; then
add_def CHRONY_VERSION "\"`cat version.txt`\""
else
add_def CHRONY_VERSION "\"DEVELOPMENT\""
fi
for f in Makefile chrony.conf.5 chrony.texi chronyc.1 chronyd.8
do
echo Creating $f
sed -e "s%@EXTRA_OBJECTS@%${EXTRA_OBJECTS}%;\
s%@CC@%${MYCC}%;\
s%@CFLAGS@%${MYCFLAGS}%;\
s%@CPPFLAGS@%${MYCPPFLAGS}%;\
s%@LIBS@%${LIBS}%;\
s%@LDFLAGS@%${MYLDFLAGS}%;\
s%@EXTRA_LIBS@%${EXTRA_LIBS}%;\
s%@EXTRA_CLI_LIBS@%${EXTRA_CLI_LIBS}%;\
s%@READLINE_COMPILE@%${READLINE_COMPILE}%;\
s%@HASH_OBJ@%${HASH_OBJ}%;\
s%@HASH_COMPILE@%${HASH_COMPILE}%;\
s%@SYSCONFDIR@%${SYSCONFDIR}%;\
s%@BINDIR@%${BINDIR}%;\
s%@SBINDIR@%${SBINDIR}%;\
s%@DOCDIR@%${DOCDIR}%;\
s%@MANDIR@%${MANDIR}%;\
s%@INFODIR@%${INFODIR}%;\
s%@LOCALSTATEDIR@%${LOCALSTATEDIR}%;\
s%@CHRONYVARDIR@%${CHRONYVARDIR}%;\
s%@DEFAULT_USER@%${default_user}%;"\
< ${f}.in > $f
done
# =======================================================================
# vim:et:sw=2:ht=2:sts=2:fdm=marker:cms=#%s