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chrony/configure
Miroslav Lichvar 598c04eea2 Add configure option to force retry on DNS failure 
This is apparently needed on system which keep nameservers specified
in /etc/resolv.conf even when there is no network connection. Should be
used with care as invalid names will be retried forever.
2011-04-05 18:14:05 +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
#
# =======================================================================
# 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
CCWARNFLAGS="-Wmissing-prototypes -Wall"
else
CCWARNFLAGS=""
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
}
#}}}
# ======================================================================
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 )
EXTRA_DEFS="-DTRACEON"
;;
--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"
SYSDEFS="-DSUNOS"
echo "Configuring for SunOS (" $SYSTEM "version" $VERSION ")"
;;
5.* )
EXTRA_OBJECTS="sys_solaris.o"
EXTRA_LIBS="-lsocket -lnsl -lkvm -lelf"
EXTRA_CLI_LIBS="-lsocket -lnsl"
SYSDEFS="-DSOLARIS"
echo "Configuring for Solaris (" $SYSTEM "SunOS version" $VERSION ")"
if [ $VERSION = "5.3" ]; then
SYSDEFS="$SYSDEFS -DHAS_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
SYSDEFS="-DLINUX"
echo "Configuring for " $SYSTEM
if [ "${MACHINE}" = "alpha" ]; then
echo "Enabling -mieee"
# FIXME: Should really test for GCC
SYSDEFS="$SYSDEFS -mieee -DALPHA"
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"
SYSDEFS="-DSUNOS"
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"
SYSDEFS="-DSOLARIS"
echo "Configuring for Solaris (" $SYSTEM "SunOS version" $VERSION ")"
;;
CYGWIN32_NT-i[3456]86 )
EXTRA_OBJECTS="sys_winnt.o"
EXTRA_LIBS=""
SYSDEFS="-DWINNT"
echo "Configuring for Windows NT (Cygwin32)"
;;
* )
echo "Sorry, I don't know how to build this software on your system."
exit 1
;;
esac
MATHCODE='return (int) pow(2.0, log(sqrt((double)argc)));'
if test_code 'math' 'math.h' '' '' "$MATHCODE"; then
LIBS=""
else
if test_code 'math in -lm' 'math.h' '' '-lm' "$MATHCODE"; then
LIBS="-lm"
else
printf "Can't compile/link a program which uses sqrt(), log(), pow(), bailing out\n"
exit 1
fi
fi
if test_code '<stdint.h>' 'stdint.h' '' '' ''; then
SYSDEFS="${SYSDEFS} -DHAS_STDINT_H"
fi
if test_code '<inttypes.h>' 'inttypes.h' '' '' ''; then
SYSDEFS="${SYSDEFS} -DHAS_INTTYPES_H"
fi
if [ $feat_ipv6 = "1" ] && \
test_code 'IPv6 support' 'arpa/inet.h sys/socket.h netinet/in.h' '' '' '
struct sockaddr_in6 n;
char p[100];
n.sin6_addr = in6addr_any;
return !inet_ntop(AF_INET6, &n.sin6_addr.s6_addr, p, sizeof(p));'
then
SYSDEFS="${SYSDEFS} -DHAVE_IPV6"
fi
if [ $feat_pps = "1" ] && \
test_code 'PPS API' 'string.h timepps.h' '' '' '
pps_handle_t h;
pps_info_t i;
struct timespec ts;
return time_pps_fetch(h, PPS_TSFMT_TSPEC, &i, &ts);'
then
SYSDEFS="${SYSDEFS} -DHAVE_PPSAPI"
fi
if [ $feat_linuxcaps = "1" ] && [ $try_linuxcaps = "1" ] && \
test_code \
linuxcaps \
'sys/types.h pwd.h sys/prctl.h sys/capability.h grp.h' \
'' '-lcap' \
'prctl(PR_SET_KEEPCAPS, 1);cap_set_proc(cap_from_text("cap_sys_time=ep"));'
then
EXTRA_DEFS="${EXTRA_DEFS} -DFEAT_LINUXCAPS=1"
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"
EXTRA_DEFS="$EXTRA_DEFS -DFEAT_RTC=1"
fi
if [ $try_setsched = "1" ] && \
test_code \
'sched_setscheduler()' \
'sched.h' '' '' '
struct sched_param sched;
sched_get_priority_max(SCHED_FIFO);
sched_setscheduler(0, SCHED_FIFO, &sched);'
then
SYSDEFS="${SYSDEFS} -DHAVE_SCHED_SETSCHEDULER"
fi
if [ $try_lockmem = "1" ] && \
test_code \
'mlockall()' \
'sys/mman.h sys/resource.h' '' '' '
struct rlimit rlim;
setrlimit(RLIMIT_MEMLOCK, &rlim);
mlockall(MCL_CURRENT|MCL_FUTURE);'
then
SYSDEFS="${SYSDEFS} -DHAVE_MLOCKALL"
fi
if [ $feat_forcednsretry = "1" ]
then
EXTRA_DEFS="$EXTRA_DEFS -DFORCE_DNSRETRY=1"
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
READLINE_COMPILE="-DFEAT_READLINE=1 -DUSE_EDITLINE=1 $readline_inc"
READLINE_LINK="$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
READLINE_COMPILE="-DFEAT_READLINE=1 $readline_inc"
READLINE_LINK="$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
sed -e "s%@EXTRA_OBJECTS@%${EXTRA_OBJECTS}%;\
s%@CC@%${MYCC}%;\
s%@CFLAGS@%${MYCFLAGS}%;\
s%@CCWARNFLAGS@%${CCWARNFLAGS}%;\
s%@CPPFLAGS@%${CPPFLAGS}%;\
s%@LIBS@%${LIBS}%;\
s%@LDFLAGS@%${MYLDFLAGS}%;\
s%@EXTRA_LIBS@%${EXTRA_LIBS}%;\
s%@SYSDEFS@%${SYSDEFS}%;\
s%@EXTRA_DEFS@%${EXTRA_DEFS}%;\
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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