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chrony/configure
Miroslav Lichvar de4d14843f Set source IPv6 address on NTP reply 
This is needed on systems with multiple IPv6 addresses to reply with
the same source address as the destination address of the NTP request.
2011-05-24 18:07:06 +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
#
# =======================================================================
rm -f config.h
# 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
printf "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
$MYCC $MYCFLAGS $MYCPPFLAGS $cflags -o docheck docheck.c $ldflags $MYLDFLAGS >/dev/null 2>&1
if [ $? -eq 0 ]
then
printf "Yes\n"
result=0
else
printf "No\n"
result=1
fi
rm -f docheck.c docheck
return $result
}
#}}}
#{{{ usage
usage () {
cat <<EOF
\`configure' configures tdl to adapt to many kinds of systems.
Usage: ./configure [OPTION]...
Defaults for the options are specified in brackets.
Configuration:
-h, --help display this help and exit
Installation directories:
--prefix=PREFIX install architecture-independent files in PREFIX
[/usr/local]
--exec-prefix=EPREFIX install architecture-dependent files in EPREFIX
[PREFIX]
By default, \`make install' will install all the files in
\`/usr/local/bin', \`/usr/local/lib' etc. You can specify
an installation prefix other than \`/usr/local' using \`--prefix',
for instance \`--prefix=$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
--disable-ipv6 Disable IPv6 support
--disable-pps Disable PPS API support
--disable-rtc Don't include RTC even on Linux
--disable-linuxcaps Disable Linux capabilities support
--enable-forcednsretry Force retry on DNS failure
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]
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 $2" >> config.h
fi
}
#}}}
# ======================================================================
OPERATINGSYSTEM=`uname -s`
VERSION=`uname -r`
MACHINE=`uname -m`
EXTRA_LIBS=""
EXTRA_CLI_LIBS=""
EXTRA_OBJECTS=""
EXTRA_DEFS=""
SYSDEFS=""
# Support for readline (on by default)
feat_readline=1
try_readline=1
try_editline=1
feat_rtc=1
try_rtc=0
feat_linuxcaps=1
try_linuxcaps=0
readline_lib=""
readline_inc=""
ncurses_lib=""
feat_ipv6=1
feat_pps=1
try_setsched=0
try_lockmem=0
feat_forcednsretry=0
for option
do
case "$option" in
--trace )
add_def TRACEON
;;
--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/^.*=//;'`
;;
--disable-rtc)
feat_rtc=0
;;
--disable-ipv6)
feat_ipv6=0
;;
--disable-pps)
feat_pps=0
;;
--disable-linuxcaps)
feat_linuxcaps=0
;;
--enable-forcednsretry)
feat_forcednsretry=1
;;
--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 ")"
if [ $VERSION = "5.3" ]; then
add_def HAS_NO_BZERO
echo "Using memset() instead of bzero()"
fi
;;
esac
;;
Linux* )
EXTRA_OBJECTS="sys_linux.o wrap_adjtimex.o"
try_linuxcaps=1
try_rtc=1
try_setsched=1
try_lockmem=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
printf "Can't compile/link a program which uses sqrt(), log(), pow(), bailing out\n"
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
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
fi
fi
fi
if [ $feat_pps = "1" ] && \
test_code 'PPS API' '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="-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 [ $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 $ncurses_lib -lreadline -lncurses" \
'add_history(readline("prompt"));'
then
add_def FEAT_READLINE
READLINE_COMPILE="$readline_inc"
READLINE_LINK="$readline_lib $ncurses_lib -lreadline -lncurses"
fi
fi
fi
SYSCONFDIR=/etc
if [ "x$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
add_def DEFAULT_CONF_DIR "\"$SYSCONFDIR\""
sed -e "s%@EXTRA_OBJECTS@%${EXTRA_OBJECTS}%;\
s%@CC@%${MYCC}%;\
s%@CFLAGS@%${MYCFLAGS}%;\
s%@CPPFLAGS@%${CPPFLAGS}%;\
s%@LIBS@%${LIBS}%;\
s%@LDFLAGS@%${MYLDFLAGS}%;\
s%@EXTRA_LIBS@%${EXTRA_LIBS}%;\
s%@EXTRA_CLI_LIBS@%${EXTRA_CLI_LIBS}%;\
s%@READLINE_COMPILE@%${READLINE_COMPILE}%;\
s%@READLINE_LINK@%${READLINE_LINK}%;\
s%@SYSCONFDIR@%${SYSCONFDIR}%;\
s%@BINDIR@%${BINDIR}%;\
s%@SBINDIR@%${SBINDIR}%;\
s%@DOCDIR@%${DOCDIR}%;\
s%@MANDIR@%${MANDIR}%;\
s%@INFODIR@%${INFODIR}%;"\
< Makefile.in > Makefile
# =======================================================================
# vim:et:sw=2:ht=2:sts=2:fdm=marker:cms=#%s
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