configure

   1 #!/bin/sh
   2 # =======================================================================
   3 #
   4 # chronyd/chronyc - Programs for keeping computer clocks accurate.
   5 #
   6 # Copyright (C) Richard P. Curnow  1997-2003
   7 # Copyright (C) Bryan Christianson  2016
   8 # Copyright (C) Miroslav Lichvar  2009, 2012-2018
   9 # Copyright (C) Stefan R. Filipek  2019
  10 #
  11 # =======================================================================
  12
  13 # This configure script determines the operating system type and version
  14
  15 # ======================================================================
  16 # FUNCTIONS
  17
  18 #{{{ test_code
  19 test_code () {
  20   name=$1
  21   headers=$2
  22   cflags=$3
  23   ldflags=$4
  24   code=$5
  25
  26   printf "%s" "Checking for $name : "
  27
  28   (
  29     echo "#include \"config.h\""
  30     for h in $headers; do
  31       echo "#include <$h>"
  32     done
  33     echo "int main(int argc, char **argv) {"
  34     echo "$code"
  35     echo "return 0; }"
  36   ) > docheck.c
  37
  38   echo "docheck.c:" >> config.log
  39   cat docheck.c >> config.log
  40   echo $MYCC $MYCFLAGS $MYCPPFLAGS $cflags -o docheck docheck.c $ldflags \
  41     $MYLDFLAGS >> config.log
  42   $MYCC $MYCFLAGS $MYCPPFLAGS $cflags -o docheck docheck.c $ldflags \
  43     $MYLDFLAGS >> config.log 2>&1
  44
  45   if [ $? -eq 0 ]
  46   then
  47     echo "Yes"
  48     result=0
  49   else
  50     echo "No"
  51     result=1
  52   fi
  53   rm -f docheck.c docheck
  54   echo >> config.log
  55   return $result
  56 }
  57 #}}}
  58 #{{{ test_executable
  59 test_executable () {
  60   name=$1
  61   executable=$2
  62   options=$3
  63
  64   printf "%s" "Checking for $name : "
  65
  66   echo $executable $options >> config.log
  67   $executable $options >> config.log 2>&1
  68
  69   if [ $? -eq 0 ]
  70   then
  71     echo "Yes"
  72     result=0
  73   else
  74     echo "No"
  75     result=1
  76   fi
  77   echo >> config.log
  78   return $result
  79 }
  80 #}}}
  81 #{{{ pkg_config
  82 pkg_config () {
  83   $PKG_CONFIG "$@" 2>> config.log
  84 }
  85 #}}}
  86 #{{{ usage
  87 usage () {
  88   cat <<EOF
  89 \`configure' configures this package to adapt to many kinds of systems.
  90
  91 Usage: ./configure [OPTION]...
  92
  93 Defaults for the options are specified in brackets.
  94
  95 Configuration:
  96   -h, --help              display this help and exit
  97
  98 Installation directories:
  99   --prefix=PREFIX         install architecture-independent files in PREFIX
 100                           [/usr/local]
 101   --exec-prefix=EPREFIX   install architecture-dependent files in EPREFIX
 102                           [PREFIX]
 103
 104 By default, \`make install' will install all the files in
 105 \`/usr/local/bin', \`/usr/local/lib' etc.  You can specify
 106 an installation prefix other than \`/usr/local' using \`--prefix',
 107 for instance \`--prefix=$HOME'.
 108
 109 For better control, use the options below.
 110   --disable-readline     Disable line editing support
 111   --without-readline     Don't use GNU readline even if it is available
 112   --without-editline     Don't use editline even if it is available
 113   --with-readline-includes=DIR Specify where readline include directory is
 114   --with-readline-library=DIR Specify where readline lib directory is
 115   --with-ncurses-library=DIR Specify where ncurses lib directory is
 116   --disable-sechash      Disable support for hashes other than MD5
 117   --without-nettle       Don't use nettle even if it is available
 118   --without-nss          Don't use NSS even if it is available
 119   --without-tomcrypt     Don't use libtomcrypt even if it is available
 120   --disable-nts          Disable NTS support
 121   --without-gnutls       Don't use gnutls even if it is available
 122   --disable-cmdmon       Disable command and monitoring support
 123   --disable-ntp          Disable NTP support
 124   --disable-refclock     Disable reference clock support
 125   --disable-phc          Disable PHC refclock driver
 126   --disable-pps          Disable PPS refclock driver
 127   --disable-ipv6         Disable IPv6 support
 128   --disable-rtc          Don't include RTC even on Linux
 129   --disable-privdrop     Disable support for dropping root privileges
 130   --without-libcap       Don't use libcap even if it is available
 131   --enable-scfilter      Enable support for system call filtering
 132   --without-seccomp      Don't use seccomp even if it is available
 133   --disable-asyncdns     Disable asynchronous name resolving
 134   --disable-forcednsretry Don't retry on permanent DNS error
 135   --without-clock-gettime Don't use clock_gettime() even if it is available
 136   --disable-timestamping Disable support for SW/HW timestamping
 137   --enable-ntp-signd     Enable support for MS-SNTP authentication in Samba
 138   --with-ntp-era=SECONDS Specify earliest assumed NTP time in seconds
 139                          since 1970-01-01 [50*365 days ago]
 140   --with-user=USER       Specify default chronyd user [root]
 141   --with-hwclockfile=PATH Specify default path to hwclock(8) adjtime file
 142   --with-pidfile=PATH    Specify default pidfile [/var/run/chrony/chronyd.pid]
 143   --with-rtcdevice=PATH  Specify default path to RTC device [/dev/rtc]
 144   --with-sendmail=PATH   Path to sendmail binary [/usr/lib/sendmail]
 145   --enable-debug         Enable debugging support
 146
 147 Fine tuning of the installation directories:
 148   --sysconfdir=DIR       chrony.conf location [/etc]
 149   --bindir=DIR           user executables [EPREFIX/bin]
 150   --sbindir=DIR          system admin executables [EPREFIX/sbin]
 151   --datarootdir=DIR      data root [PREFIX/share]
 152   --mandir=DIR           man documentation [DATAROOTDIR/man]
 153   --docdir=DIR           documentation root [DATAROOTDIR/doc/chrony]
 154   --localstatedir=DIR    modifiable single-machine data [/var]
 155   --chronyrundir=DIR     location for chrony sockets [LOCALSTATEDIR/run/chrony]
 156   --chronyvardir=DIR     location for chrony data [LOCALSTATEDIR/lib/chrony]
 157
 158 Overriding system detection when cross-compiling:
 159   --host-system=OS       Specify system name (uname -s)
 160   --host-release=REL     Specify system release (uname -r)
 161   --host-machine=CPU     Specify machine (uname -m)
 162
 163 Some influential environment variables:
 164   CC          C compiler command
 165   CFLAGS      C compiler flags
 166   CPPFLAGS    C preprocessor flags, e.g. -I<include dir> if you have
 167               headers in a nonstandard directory <include dir>
 168   LDFLAGS     linker flags, e.g. -L<lib dir> if you have libraries in a
 169               nonstandard directory <lib dir>
 170   PKG_CONFIG  path to pkg-config utility
 171   PKG_CONFIG_PATH
 172               directories to add to pkg-config's search path
 173   PKG_CONFIG_LIBDIR
 174               path overriding pkg-config's built-in search path
 175
 176 Use these variables to override the choices made by \`configure' or to help
 177 it to find libraries and programs with nonstandard names/locations.
 178
 179 EOF
 180
 181 }
 182 #}}}
 183 #{{{
 184 add_def () {
 185   if [ "x$2" = "x" ]; then
 186     echo "#define $1 1" >> config.h
 187   else
 188     echo "#define $1 $2" >> config.h
 189   fi
 190 }
 191 #}}}
 192 #{{{ get_features
 193 get_features () {
 194   ff=1
 195   for f; do
 196     if [ "$ff" = "0" ]; then
 197       printf " "
 198     fi
 199     if grep "define FEAT_$f" config.h > /dev/null; then
 200       printf "%s" "+$f"
 201     else
 202       printf "%s" "-$f"
 203     fi
 204     ff=0
 205   done
 206 }
 207 #}}}
 208
 209 # ======================================================================
 210
 211
 212
 213 OPERATINGSYSTEM=`uname -s`
 214 VERSION=`uname -r`
 215 MACHINE=`uname -m`
 216
 217 LIBS=""
 218 EXTRA_LIBS=""
 219 EXTRA_CLI_LIBS=""
 220 EXTRA_OBJECTS=""
 221 EXTRA_CLI_OBJECTS=""
 222
 223 feat_debug=0
 224 feat_cmdmon=1
 225 feat_ntp=1
 226 feat_refclock=1
 227 feat_readline=1
 228 try_readline=1
 229 try_editline=1
 230 feat_sechash=1
 231 try_nettle=1
 232 try_nss=1
 233 try_tomcrypt=1
 234 feat_nts=1
 235 try_gnutls=1
 236 feat_rtc=1
 237 try_rtc=0
 238 feat_droproot=1
 239 try_libcap=-1
 240 try_clockctl=0
 241 feat_scfilter=0
 242 try_seccomp=-1
 243 priv_ops=""
 244 readline_lib=""
 245 readline_inc=""
 246 ncurses_lib=""
 247 feat_ipv6=1
 248 feat_phc=1
 249 try_phc=0
 250 feat_pps=1
 251 try_setsched=0
 252 try_lockmem=0
 253 feat_asyncdns=1
 254 feat_forcednsretry=1
 255 try_clock_gettime=1
 256 try_recvmmsg=1
 257 feat_timestamping=1
 258 try_timestamping=0
 259 feat_ntp_signd=0
 260 ntp_era_split=""
 261 use_pthread=0
 262 default_user="root"
 263 default_hwclockfile=""
 264 default_pidfile="/var/run/chrony/chronyd.pid"
 265 default_rtcdevice="/dev/rtc"
 266 mail_program="/usr/lib/sendmail"
 267
 268 for option
 269 do
 270     case "$option" in
 271     --enable-debug )
 272       feat_debug=1
 273     ;;
 274     --disable-readline )
 275       feat_readline=0
 276     ;;
 277     --without-readline )
 278       try_readline=0
 279     ;;
 280     --without-editline )
 281       try_editline=0
 282     ;;
 283     --with-readline-library=* )
 284       readline_lib=-L`echo $option | sed -e 's/^.*=//;'`
 285     ;;
 286     --with-readline-includes=* )
 287       readline_inc=-I`echo $option | sed -e 's/^.*=//;'`
 288     ;;
 289     --with-ncurses-library=* )
 290       ncurses_lib=-L`echo $option | sed -e 's/^.*=//;'`
 291     ;;
 292     --prefix=* | --install_prefix=* )
 293       SETPREFIX=`echo $option | sed -e 's/[^=]*=//;'`
 294     ;;
 295     --exec-prefix=* )
 296       SETEPREFIX=`echo $option | sed -e 's/[^=]*=//;'`
 297     ;;
 298     --sysconfdir=* )
 299       SETSYSCONFDIR=`echo $option | sed -e 's/^.*=//;'`
 300     ;;
 301     --bindir=* )
 302       SETBINDIR=`echo $option | sed -e 's/^.*=//;'`
 303     ;;
 304     --sbindir=* )
 305       SETSBINDIR=`echo $option | sed -e 's/^.*=//;'`
 306     ;;
 307     --datarootdir=* )
 308       SETDATAROOTDIR=`echo $option | sed -e 's/^.*=//;'`
 309     ;;
 310     --mandir=* )
 311       SETMANDIR=`echo $option | sed -e 's/^.*=//;'`
 312     ;;
 313     --docdir=* )
 314       SETDOCDIR=`echo $option | sed -e 's/^.*=//;'`
 315     ;;
 316     --localstatedir=* )
 317       SETLOCALSTATEDIR=`echo $option | sed -e 's/^.*=//;'`
 318     ;;
 319     --chronyrundir=* | --chronysockdir=* )
 320       SETCHRONYRUNDIR=`echo $option | sed -e 's/^.*=//;'`
 321     ;;
 322     --chronyvardir=* )
 323       SETCHRONYVARDIR=`echo $option | sed -e 's/^.*=//;'`
 324     ;;
 325     --disable-cmdmon)
 326       feat_cmdmon=0
 327     ;;
 328     --disable-ntp)
 329       feat_ntp=0
 330     ;;
 331     --disable-refclock)
 332       feat_refclock=0
 333     ;;
 334     --disable-rtc)
 335       feat_rtc=0
 336     ;;
 337     --disable-ipv6)
 338       feat_ipv6=0
 339     ;;
 340     --disable-phc)
 341       feat_phc=0
 342     ;;
 343     --disable-pps)
 344       feat_pps=0
 345     ;;
 346     --disable-privdrop)
 347       feat_droproot=0
 348     ;;
 349     --without-libcap|--disable-linuxcaps)
 350       try_libcap=0
 351     ;;
 352     --enable-scfilter)
 353       feat_scfilter=1
 354     ;;
 355     --disable-scfilter)
 356       feat_scfilter=0
 357     ;;
 358     --without-seccomp)
 359       try_seccomp=0
 360     ;;
 361     --disable-asyncdns)
 362       feat_asyncdns=0
 363     ;;
 364     --disable-forcednsretry)
 365       feat_forcednsretry=0
 366     ;;
 367     --without-clock-gettime)
 368       try_clock_gettime=0
 369     ;;
 370     --disable-timestamping)
 371       feat_timestamping=0
 372     ;;
 373     --enable-ntp-signd)
 374       feat_ntp_signd=1
 375     ;;
 376     --with-ntp-era=* )
 377       ntp_era_split=`echo $option | sed -e 's/^.*=//;'`
 378     ;;
 379     --with-user=* )
 380       default_user=`echo $option | sed -e 's/^.*=//;'`
 381     ;;
 382     --with-hwclockfile=* )
 383       default_hwclockfile=`echo $option | sed -e 's/^.*=//;'`
 384     ;;
 385     --with-pidfile=* )
 386       default_pidfile=`echo $option | sed -e 's/^.*=//;'`
 387     ;;
 388     --with-rtcdevice=* )
 389       default_rtcdevice=`echo $option | sed -e 's/^.*=//;'`
 390     ;;
 391     --with-sendmail=* )
 392       mail_program=`echo $option | sed -e 's/^.*=//;'`
 393     ;;
 394     --disable-sechash )
 395       feat_sechash=0
 396     ;;
 397     --without-nettle )
 398       try_nettle=0
 399     ;;
 400     --without-nss )
 401       try_nss=0
 402     ;;
 403     --without-tomcrypt )
 404       try_tomcrypt=0
 405     ;;
 406     --disable-nts )
 407       feat_nts=0
 408     ;;
 409     --without-gnutls )
 410       try_gnutls=0
 411     ;;
 412     --host-system=* )
 413       OPERATINGSYSTEM=`echo $option | sed -e 's/^.*=//;'`
 414     ;;
 415     --host-release=* )
 416       VERSION=`echo $option | sed -e 's/^.*=//;'`
 417     ;;
 418     --host-machine=* )
 419       MACHINE=`echo $option | sed -e 's/^.*=//;'`
 420     ;;
 421     --help | -h )
 422       usage
 423       exit 0
 424     ;;
 425     * )
 426     echo "Unrecognized option : " $option
 427     esac
 428 done
 429
 430 rm -f config.h config.log
 431
 432 SYSTEM=${OPERATINGSYSTEM}-${MACHINE}
 433
 434 case $OPERATINGSYSTEM in
 435     Linux)
 436         EXTRA_OBJECTS="sys_generic.o sys_linux.o sys_timex.o sys_posix.o"
 437         [ $try_libcap != "0" ] && try_libcap=1
 438         try_rtc=1
 439         [ $try_seccomp != "0" ] && try_seccomp=1
 440         try_timestamping=1
 441         try_setsched=1
 442         try_lockmem=1
 443         try_phc=1
 444         add_def LINUX
 445         echo "Configuring for " $SYSTEM
 446     ;;
 447     FreeBSD)
 448         # recvmmsg() seems to be broken on FreeBSD 11.0 and it's just
 449         # a wrapper around recvmsg()
 450         try_recvmmsg=0
 451         EXTRA_OBJECTS="sys_generic.o sys_netbsd.o sys_timex.o sys_posix.o"
 452         try_setsched=1
 453         try_lockmem=1
 454         add_def FREEBSD
 455         if [ $feat_droproot = "1" ]; then
 456           add_def FEAT_PRIVDROP
 457           priv_ops="ADJUSTTIME ADJUSTTIMEX SETTIME BINDSOCKET"
 458         fi
 459         echo "Configuring for $SYSTEM"
 460     ;;
 461     NetBSD)
 462         EXTRA_OBJECTS="sys_generic.o sys_netbsd.o sys_timex.o sys_posix.o"
 463         try_clockctl=1
 464         try_setsched=1
 465         try_lockmem=1
 466         add_def NETBSD
 467         echo "Configuring for $SYSTEM"
 468     ;;
 469     Darwin)
 470         EXTRA_OBJECTS="sys_macosx.o"
 471         LIBS="$LIBS -lresolv"
 472         add_def MACOSX
 473         if [ $feat_droproot = "1" ]; then
 474           add_def FEAT_PRIVDROP
 475           priv_ops="ADJUSTTIME SETTIME BINDSOCKET"
 476         fi
 477         major=`echo $VERSION | cut -d. -f1`
 478         # ntp_adjtime is not available in macOS 10.12 (Darwin 16.x.x) and earlier
 479         if [ $major -gt "16" ]; then
 480           add_def HAVE_MACOS_SYS_TIMEX
 481           EXTRA_OBJECTS="$EXTRA_OBJECTS sys_generic.o sys_netbsd.o sys_timex.o"
 482           if [ $feat_droproot = "1" ]; then
 483             priv_ops="$priv_ops ADJUSTTIMEX"
 484           fi
 485         fi
 486         echo "Configuring for macOS (" $SYSTEM "macOS version" $VERSION ")"
 487     ;;
 488     SunOS)
 489         EXTRA_OBJECTS="sys_generic.o sys_solaris.o sys_timex.o sys_posix.o"
 490         LIBS="$LIBS -lsocket -lnsl -lresolv"
 491         try_setsched=1
 492         try_lockmem=1
 493         add_def SOLARIS
 494         # These are needed to have msg_control in struct msghdr
 495         add_def __EXTENSIONS__
 496         add_def _XOPEN_SOURCE 1
 497         add_def _XOPEN_SOURCE_EXTENDED 1
 498         if [ $feat_droproot = "1" ]; then
 499           add_def FEAT_PRIVDROP
 500           priv_ops="ADJUSTTIMEX SETTIME BINDSOCKET"
 501         fi
 502         echo "Configuring for Solaris (" $SYSTEM "SunOS version" $VERSION ")"
 503     ;;
 504     * )
 505         echo "error: $SYSTEM is not supported (yet?)"
 506         exit 1
 507     ;;
 508 esac
 509
 510 if [ $feat_debug = "1" ]; then
 511   add_def FEAT_DEBUG
 512 fi
 513 add_def DEBUG $feat_debug
 514
 515 if [ $feat_cmdmon = "1" ]; then
 516   add_def FEAT_CMDMON
 517   EXTRA_OBJECTS="$EXTRA_OBJECTS cmdmon.o manual.o pktlength.o"
 518 fi
 519
 520 if [ $feat_ntp = "1" ]; then
 521   add_def FEAT_NTP
 522   EXTRA_OBJECTS="$EXTRA_OBJECTS ntp_auth.o ntp_core.o ntp_ext.o ntp_io.o ntp_sources.o"
 523   if [ $feat_ntp_signd = "1" ]; then
 524     add_def FEAT_SIGND
 525     EXTRA_OBJECTS="$EXTRA_OBJECTS ntp_signd.o"
 526   fi
 527 else
 528   feat_asyncdns=0
 529   feat_timestamping=0
 530 fi
 531
 532 if [ "$feat_cmdmon" = "1" ] || [ $feat_ntp = "1" ]; then
 533   EXTRA_OBJECTS="$EXTRA_OBJECTS addrfilt.o clientlog.o keys.o nameserv.o"
 534 else
 535   feat_ipv6=0
 536 fi
 537
 538 if [ $feat_refclock = "1" ]; then
 539   add_def FEAT_REFCLOCK
 540   EXTRA_OBJECTS="$EXTRA_OBJECTS refclock.o refclock_phc.o refclock_pps.o refclock_shm.o refclock_sock.o"
 541 fi
 542
 543 MYCC="$CC"
 544 MYCFLAGS="$CFLAGS"
 545 MYCPPFLAGS="$CPPFLAGS"
 546 MYLDFLAGS="$LDFLAGS"
 547
 548 if [ "x$MYCC" = "x" ]; then
 549   for cc in gcc clang cc ""; do
 550     if [ "x$cc" = "x" ]; then
 551       echo "error: no C compiler found"
 552       exit 1
 553     fi
 554     MYCC=$cc
 555     if test_code "$MYCC" '' '' '' ''; then
 556       break
 557     fi
 558   done
 559 else
 560   if ! test_code "$MYCC" '' '' '' ''; then
 561     echo "error: C compiler $MYCC cannot create executables"
 562     exit 1
 563   fi
 564 fi
 565
 566 if [ "x$MYCFLAGS" = "x" ]; then
 567   MYCFLAGS="-O2 -g"
 568
 569   TESTCFLAGS="-D_FORTIFY_SOURCE=2 -fPIE"
 570   TESTLDFLAGS="-pie -Wl,-z,relro,-z,now"
 571   if test_code 'hardening compiler options' '' "$TESTCFLAGS" "$TESTLDFLAGS" ''; then
 572     MYCFLAGS="$MYCFLAGS $TESTCFLAGS"
 573     MYLDFLAGS="$MYLDFLAGS $TESTLDFLAGS"
 574   fi
 575   TESTCFLAGS="-fstack-protector-strong --param=ssp-buffer-size=4"
 576   if test_code '-fstack-protector-strong' '' "$TESTCFLAGS" '' ''; then
 577     MYCFLAGS="$MYCFLAGS $TESTCFLAGS"
 578   else
 579     TESTCFLAGS="-fstack-protector --param=ssp-buffer-size=4"
 580     if test_code '-fstack-protector' '' "$TESTCFLAGS" '' ''; then
 581       MYCFLAGS="$MYCFLAGS $TESTCFLAGS"
 582     fi
 583   fi
 584 fi
 585
 586 if [ "x$MYCC" = "xgcc" ] || [ "x$MYCC" = "xclang" ]; then
 587   MYCFLAGS="$MYCFLAGS -Wmissing-prototypes -Wall"
 588 fi
 589
 590 if [ "x$PKG_CONFIG" = "x" ]; then
 591   PKG_CONFIG=pkg-config
 592 fi
 593
 594 if ! test_executable "pkg-config" $PKG_CONFIG --version; then
 595   try_nettle=0
 596   try_nss=0
 597   try_gnutls=0
 598 fi
 599
 600 if test_code '64-bit time_t' 'time.h' '' '' '
 601   char x[sizeof(time_t) > 4 ? 1 : -1] = {0};
 602   return x[0];'
 603 then
 604   add_def HAVE_LONG_TIME_T 1
 605
 606   if [ "x$ntp_era_split" != "x" ]; then
 607     split_seconds=$ntp_era_split
 608     split_days=0
 609   else
 610     if [ "x$SOURCE_DATE_EPOCH" != "x" ]; then
 611       split_seconds=$SOURCE_DATE_EPOCH
 612     else
 613       split_seconds=`date '+%s'`
 614     fi
 615     if [ "x$split_seconds" = "x" ]; then
 616       echo "error: could not get current time, --with-ntp-era option is needed"
 617       exit 1
 618     fi
 619     split_days=$((50 * 365))
 620   fi
 621
 622   add_def NTP_ERA_SPLIT "(${split_seconds}LL - $split_days * 24 * 3600)"
 623
 624   date_format='+%Y-%m-%dT%H:%M:%SZ'
 625
 626   # Print the full NTP interval if a suitable date is found
 627   if [ "x`date -u -d '1970-01-01 UTC 9 days ago 5 seconds 3 seconds' \
 628     $date_format 2> /dev/null`" = "x1969-12-23T00:00:08Z" ]
 629   then
 630     time1="`date -u -d "1970-01-01 UTC $split_days days ago $split_seconds seconds" \
 631       $date_format`"
 632     time2="`date -u -d "1970-01-01 UTC $split_days days ago $split_seconds seconds 4294967296 seconds" \
 633       $date_format`"
 634     echo "NTP time mapped to $time1/$time2"
 635   fi
 636 fi
 637
 638 MATHCODE='return (int) pow(2.0, log(sqrt((double)argc)));'
 639 if ! test_code 'math' 'math.h' '' '' "$MATHCODE"; then
 640   if test_code 'math in -lm' 'math.h' '' '-lm' "$MATHCODE"; then
 641     LIBS="$LIBS -lm"
 642   else
 643     echo "error: could not compile/link a program which uses sqrt(), log(), pow()"
 644     exit 1
 645   fi
 646 fi
 647
 648 if test_code 'struct in_pktinfo' 'sys/socket.h netinet/in.h' '' '' '
 649   struct in_pktinfo ipi;
 650   return sizeof (ipi.ipi_spec_dst.s_addr) + IP_PKTINFO;'
 651 then
 652   add_def HAVE_IN_PKTINFO
 653 fi
 654
 655 if [ $feat_ipv6 = "1" ] && \
 656   test_code 'IPv6 support' 'arpa/inet.h sys/socket.h netinet/in.h' '' "$LIBS" '
 657     struct sockaddr_in6 n;
 658     char p[100];
 659     n.sin6_addr = in6addr_any;
 660     return !inet_ntop(AF_INET6, &n.sin6_addr.s6_addr, p, sizeof(p));'
 661 then
 662   add_def FEAT_IPV6
 663   if test_code 'struct in6_pktinfo' 'sys/socket.h netinet/in.h' '' '' '
 664     return sizeof (struct in6_pktinfo) + IPV6_PKTINFO;'
 665   then
 666     add_def HAVE_IN6_PKTINFO
 667   else
 668     if test_code 'struct in6_pktinfo with _GNU_SOURCE' 'sys/socket.h netinet/in.h' \
 669       '-D_GNU_SOURCE' '' 'return sizeof (struct in6_pktinfo) + IPV6_PKTINFO;'
 670     then
 671       add_def _GNU_SOURCE
 672       add_def HAVE_IN6_PKTINFO
 673     fi
 674   fi
 675 fi
 676
 677 if [ $try_clock_gettime = "1" ]; then
 678   if test_code 'clock_gettime()' 'time.h' '' '' \
 679     'clock_gettime(CLOCK_REALTIME, NULL);'
 680   then
 681     add_def HAVE_CLOCK_GETTIME
 682   else
 683     if test_code 'clock_gettime() in -lrt' 'time.h' '' '-lrt' \
 684       'clock_gettime(CLOCK_REALTIME, NULL);'
 685     then
 686       add_def HAVE_CLOCK_GETTIME
 687       EXTRA_LIBS="$EXTRA_LIBS -lrt"
 688     fi
 689   fi
 690 fi
 691
 692 if test_code 'getaddrinfo()' 'sys/types.h sys/socket.h netdb.h' '' "$LIBS" \
 693   'return getaddrinfo(0, 0, 0, 0);'
 694 then
 695   add_def HAVE_GETADDRINFO
 696 fi
 697
 698 if [ $feat_asyncdns = "1" ] && \
 699   test_code 'pthread' 'pthread.h' '-pthread' '' '
 700     pthread_t thread;
 701     return (int)pthread_create(&thread, NULL, (void *)1, NULL);'
 702 then
 703   add_def FEAT_ASYNCDNS
 704   add_def USE_PTHREAD_ASYNCDNS
 705   EXTRA_OBJECTS="$EXTRA_OBJECTS nameserv_async.o"
 706   use_pthread=1
 707 fi
 708
 709 if test_code 'arc4random_buf()' 'stdlib.h' '' '' 'arc4random_buf(NULL, 0);'; then
 710   add_def HAVE_ARC4RANDOM
 711 fi
 712
 713 if test_code 'getrandom()' 'stdlib.h sys/random.h' '' '' \
 714     'return getrandom(NULL, 256, 0);'; then
 715   add_def HAVE_GETRANDOM
 716 fi
 717
 718 RECVMMSG_CODE='
 719   struct mmsghdr hdr;
 720   return !recvmmsg(0, &hdr, 1, MSG_DONTWAIT, 0);'
 721 if [ $try_recvmmsg = "1" ]; then
 722   if test_code 'recvmmsg()' 'sys/socket.h' '' "$LIBS" "$RECVMMSG_CODE"; then
 723     add_def HAVE_RECVMMSG
 724   else
 725     if test_code 'recvmmsg() with _GNU_SOURCE' 'sys/socket.h' '-D_GNU_SOURCE' \
 726       "$LIBS" "$RECVMMSG_CODE"
 727     then
 728       add_def _GNU_SOURCE
 729       add_def HAVE_RECVMMSG
 730     fi
 731   fi
 732 fi
 733
 734 if [ $feat_timestamping = "1" ] && [ $try_timestamping = "1" ] &&
 735   test_code 'SW/HW timestamping' 'sys/types.h sys/socket.h linux/net_tstamp.h
 736                                   linux/errqueue.h linux/ptp_clock.h' '' '' '
 737     int val = SOF_TIMESTAMPING_SOFTWARE | SOF_TIMESTAMPING_RX_SOFTWARE |
 738               SOF_TIMESTAMPING_RAW_HARDWARE | SOF_TIMESTAMPING_OPT_CMSG;
 739     return sizeof (struct scm_timestamping) + SCM_TSTAMP_SND + PTP_SYS_OFFSET +
 740            setsockopt(0, SOL_SOCKET, SO_SELECT_ERR_QUEUE + SO_TIMESTAMPING,
 741                       &val, sizeof (val));'
 742 then
 743   add_def HAVE_LINUX_TIMESTAMPING
 744   EXTRA_OBJECTS="$EXTRA_OBJECTS hwclock.o ntp_io_linux.o"
 745
 746   if test_code 'other timestamping options' \
 747     'sys/types.h sys/socket.h linux/net_tstamp.h' '' '' '
 748     struct scm_ts_pktinfo pktinfo;
 749     pktinfo.if_index = pktinfo.pkt_length = 0;
 750     return pktinfo.if_index + pktinfo.pkt_length + HWTSTAMP_FILTER_NTP_ALL +
 751            SCM_TIMESTAMPING_PKTINFO +
 752            SOF_TIMESTAMPING_OPT_PKTINFO + SOF_TIMESTAMPING_OPT_TX_SWHW;'; then
 753     add_def HAVE_LINUX_TIMESTAMPING_RXFILTER_NTP 1
 754     add_def HAVE_LINUX_TIMESTAMPING_OPT_PKTINFO 1
 755     add_def HAVE_LINUX_TIMESTAMPING_OPT_TX_SWHW 1
 756   fi
 757 fi
 758
 759 timepps_h=""
 760 if [ $feat_refclock = "1" ] && [ $feat_pps = "1" ]; then
 761   if test_code '<sys/timepps.h>' 'inttypes.h time.h sys/timepps.h' '' '' ''; then
 762     timepps_h="sys/timepps.h"
 763     add_def HAVE_SYS_TIMEPPS_H
 764   else
 765     if test_code '<timepps.h>' 'inttypes.h time.h timepps.h' '' '' ''; then
 766       timepps_h="timepps.h"
 767       add_def HAVE_TIMEPPS_H
 768     fi
 769   fi
 770 fi
 771
 772 if [ "x$timepps_h" != "x" ] && \
 773   test_code 'PPSAPI' "inttypes.h string.h time.h $timepps_h" '' '' '
 774     pps_handle_t h = 0;
 775     pps_info_t i;
 776     struct timespec ts;
 777     ts.tv_sec = ts.tv_nsec = 0;
 778     return time_pps_fetch(h, PPS_TSFMT_TSPEC, &i, &ts);'
 779 then
 780   add_def FEAT_PPS
 781 fi
 782
 783 if [ $feat_droproot = "1" ] && [ $try_libcap = "1" ] && \
 784   test_code \
 785     libcap \
 786     'sys/types.h pwd.h sys/prctl.h sys/capability.h grp.h' \
 787     '' '-lcap' \
 788     'prctl(PR_SET_KEEPCAPS, 1);cap_set_proc(cap_from_text("cap_sys_time=ep"));'
 789 then
 790     add_def FEAT_PRIVDROP
 791     EXTRA_LIBS="$EXTRA_LIBS -lcap"
 792 fi
 793
 794 if [ $feat_droproot = "1" ] && [ $try_clockctl = "1" ] && \
 795   test_code '<sys/clockctl.h>' 'sys/clockctl.h' '' '' ''
 796 then
 797   add_def FEAT_PRIVDROP
 798   priv_ops="BINDSOCKET"
 799 fi
 800
 801 if [ $feat_scfilter = "1" ] && [ $try_seccomp = "1" ] && \
 802   test_code seccomp 'seccomp.h' '' '-lseccomp' \
 803     'seccomp_init(SCMP_ACT_KILL);'
 804 then
 805   add_def FEAT_SCFILTER
 806   # NAME2IPADDRESS shouldn't be enabled with other operations as the helper
 807   # process works on one request at the time and the async resolver could
 808   # block the main thread
 809   priv_ops="NAME2IPADDRESS RELOADDNS"
 810   EXTRA_LIBS="$EXTRA_LIBS -lseccomp"
 811 fi
 812
 813 if [ "x$priv_ops" != "x" ]; then
 814   EXTRA_OBJECTS="$EXTRA_OBJECTS privops.o"
 815   add_def PRIVOPS_HELPER
 816   for o in $priv_ops; do
 817     add_def PRIVOPS_$o
 818   done
 819 fi
 820
 821 if [ $feat_rtc = "1" ] && [ $try_rtc = "1" ] && \
 822   test_code '<linux/rtc.h>' 'sys/ioctl.h linux/rtc.h' '' '' \
 823     'ioctl(1, RTC_UIE_ON&RTC_UIE_OFF&RTC_RD_TIME&RTC_SET_TIME, 0&RTC_UF);'
 824 then
 825     EXTRA_OBJECTS="$EXTRA_OBJECTS rtc_linux.o"
 826     add_def FEAT_RTC
 827 fi
 828
 829 if [ $feat_refclock = "1" ] && [ $feat_phc = "1" ] && [ $try_phc = "1" ] && \
 830   grep '#define HAVE_CLOCK_GETTIME' config.h > /dev/null && \
 831   test_code '<linux/ptp_clock.h>' 'sys/ioctl.h linux/ptp_clock.h' '' '' \
 832     'ioctl(1, PTP_CLOCK_GETCAPS + PTP_SYS_OFFSET, 0);'
 833 then
 834   grep 'HAVE_LINUX_TIMESTAMPING' config.h > /dev/null ||
 835     EXTRA_OBJECTS="$EXTRA_OBJECTS hwclock.o"
 836   add_def FEAT_PHC
 837 fi
 838
 839 if [ $try_setsched = "1" ] && \
 840   test_code \
 841     'pthread_setschedparam()' \
 842     'pthread.h sched.h' '-pthread' '' '
 843      struct sched_param sched;
 844      sched_get_priority_max(SCHED_FIFO);
 845      pthread_setschedparam(pthread_self(), SCHED_FIFO, &sched);'
 846 then
 847   add_def HAVE_PTHREAD_SETSCHEDPARAM
 848   use_pthread=1
 849 fi
 850
 851 if [ $try_lockmem = "1" ] && \
 852   test_code \
 853     'mlockall()' \
 854     'sys/mman.h' '' '' '
 855      mlockall(MCL_CURRENT|MCL_FUTURE);'
 856 then
 857   add_def HAVE_MLOCKALL
 858 fi
 859 if [ $try_lockmem = "1" ] && \
 860   test_code \
 861     'setrlimit(RLIMIT_MEMLOCK, ...)' \
 862     'sys/resource.h' '' '' '
 863      struct rlimit rlim;
 864      rlim.rlim_max = rlim.rlim_cur = RLIM_INFINITY;
 865      setrlimit(RLIMIT_MEMLOCK, &rlim);'
 866 then
 867   add_def HAVE_SETRLIMIT_MEMLOCK
 868 fi
 869
 870 if [ $feat_forcednsretry = "1" ]
 871 then
 872   add_def FORCE_DNSRETRY
 873 fi
 874
 875 READLINE_LINK=""
 876 if [ $feat_readline = "1" ]; then
 877   if [ $try_editline = "1" ]; then
 878     if test_code editline 'stdio.h editline/readline.h' \
 879       "$readline_inc" "$readline_lib -ledit" \
 880       'add_history(readline("prompt"));'
 881     then
 882       add_def FEAT_READLINE
 883       add_def USE_EDITLINE
 884       MYCPPFLAGS="$MYCPPFLAGS $readline_inc"
 885       READLINE_LINK="$readline_lib -ledit"
 886     fi
 887   fi
 888
 889   if [ "x$READLINE_LINK" = "x" ] && [ $try_readline = "1" ]; then
 890     if test_code readline 'stdio.h readline/readline.h readline/history.h' \
 891       "$readline_inc" "$readline_lib -lreadline" \
 892       'add_history(readline("prompt"));'
 893     then
 894       add_def FEAT_READLINE
 895       MYCPPFLAGS="$MYCPPFLAGS $readline_inc"
 896       READLINE_LINK="$readline_lib -lreadline"
 897     fi
 898   fi
 899
 900   if [ "x$READLINE_LINK" = "x" ] && [ $try_readline = "1" ]; then
 901     if test_code 'readline with -lncurses' \
 902       'stdio.h readline/readline.h readline/history.h' \
 903       "$readline_inc" "$readline_lib $ncurses_lib -lreadline -lncurses" \
 904       'add_history(readline("prompt"));'
 905     then
 906       add_def FEAT_READLINE
 907       MYCPPFLAGS="$MYCPPFLAGS $readline_inc"
 908       READLINE_LINK="$readline_lib $ncurses_lib -lreadline -lncurses"
 909     fi
 910   fi
 911
 912   EXTRA_CLI_LIBS="$EXTRA_CLI_LIBS $READLINE_LINK"
 913 fi
 914
 915 HASH_OBJ="hash_intmd5.o"
 916 HASH_LINK=""
 917
 918 if [ $feat_sechash = "1" ] && [ "x$HASH_LINK" = "x" ]  && [ $try_nettle = "1" ]; then
 919   test_cflags="`pkg_config --cflags nettle`"
 920   test_link="`pkg_config --libs nettle`"
 921   if test_code 'nettle' 'nettle/nettle-meta.h nettle/sha2.h' \
 922     "$test_cflags" "$test_link" \
 923     'return nettle_hashes[0]->context_size;'
 924   then
 925     HASH_OBJ="hash_nettle.o"
 926     HASH_LINK="$test_link"
 927     MYCPPFLAGS="$MYCPPFLAGS $test_cflags"
 928     add_def FEAT_SECHASH
 929
 930     if test_code 'CMAC in nettle' 'nettle/cmac.h' "$test_cflags" "$test_link" \
 931       'cmac128_update(NULL, NULL, NULL, 0, NULL);'
 932     then
 933       add_def HAVE_CMAC
 934       EXTRA_OBJECTS="$EXTRA_OBJECTS cmac_nettle.o"
 935       EXTRA_CLI_OBJECTS="$EXTRA_CLI_OBJECTS cmac_nettle.o"
 936     fi
 937   fi
 938 fi
 939
 940 if [ $feat_sechash = "1" ] && [ "x$HASH_LINK" = "x" ]  && [ $try_nss = "1" ]; then
 941   test_cflags="`pkg_config --cflags nss`"
 942   test_link="`pkg_config --libs-only-L nss` -lfreebl3"
 943   if test_code 'NSS' 'nss.h hasht.h nsslowhash.h' \
 944     "$test_cflags" "$test_link" \
 945     'NSSLOWHASH_Begin(NSSLOWHASH_NewContext(NSSLOW_Init(), HASH_AlgSHA512));'
 946   then
 947     HASH_OBJ="hash_nss.o"
 948     HASH_LINK="$test_link"
 949     MYCPPFLAGS="$MYCPPFLAGS $test_cflags"
 950     add_def FEAT_SECHASH
 951   fi
 952 fi
 953
 954 if [ $feat_sechash = "1" ] && [ "x$HASH_LINK" = "x" ] && [ $try_tomcrypt = "1" ]; then
 955   if test_code 'tomcrypt' 'tomcrypt.h' '-I/usr/include/tomcrypt' '-ltomcrypt' \
 956     'hash_memory_multi(find_hash("md5"), NULL, NULL, NULL, 0, NULL, 0);'
 957   then
 958     HASH_OBJ="hash_tomcrypt.o"
 959     HASH_LINK="-ltomcrypt"
 960     MYCPPFLAGS="$MYCPPFLAGS -I/usr/include/tomcrypt"
 961     add_def FEAT_SECHASH
 962   fi
 963 fi
 964
 965 EXTRA_OBJECTS="$EXTRA_OBJECTS $HASH_OBJ"
 966 EXTRA_CLI_OBJECTS="$EXTRA_CLI_OBJECTS $HASH_OBJ"
 967 LIBS="$LIBS $HASH_LINK"
 968
 969 if [ $feat_ntp = "1" ] && [ $feat_nts = "1" ] && [ $try_gnutls = "1" ] && \
 970     echo "$HASH_LINK" | grep 'nettle' > /dev/null; then
 971   test_cflags="`pkg_config --cflags gnutls`"
 972   test_link="`pkg_config --libs gnutls`"
 973   if test_code 'gnutls' 'gnutls/gnutls.h' \
 974     "$test_cflags" "$test_link" '
 975       return gnutls_init(NULL, 0) +
 976         gnutls_priority_init2(NULL, "", NULL, GNUTLS_PRIORITY_INIT_DEF_APPEND) +
 977         gnutls_prf_rfc5705(NULL, 0, "", 0, "", 16, NULL);' &&
 978     test_code 'AES128 in nettle' 'nettle/aes.h' '' "$LIBS" \
 979       'aes128_set_encrypt_key(NULL, NULL);'
 980   then
 981     EXTRA_OBJECTS="$EXTRA_OBJECTS nts_ke_client.o nts_ke_server.o nts_ke_session.o"
 982     EXTRA_OBJECTS="$EXTRA_OBJECTS nts_ntp_auth.o nts_ntp_client.o nts_ntp_server.o"
 983     EXTRA_OBJECTS="$EXTRA_OBJECTS siv_nettle.o"
 984     LIBS="$LIBS $test_link"
 985     MYCPPFLAGS="$MYCPPFLAGS $test_cflags"
 986     add_def FEAT_NTS
 987
 988     add_def HAVE_SIV
 989     if test_code 'SIV in nettle' \
 990       'nettle/siv-cmac.h' "" "$LIBS" \
 991       'siv_cmac_aes128_set_key(NULL, NULL);'
 992     then
 993       add_def HAVE_NETTLE_SIV_CMAC
 994     fi
 995   fi
 996 fi
 997
 998 if [ $use_pthread = "1" ]; then
 999   MYCFLAGS="$MYCFLAGS -pthread"
1000 fi
1001
1002 SYSCONFDIR=/etc
1003 if [ "x$SETSYSCONFDIR" != "x" ]; then
1004   SYSCONFDIR=$SETSYSCONFDIR
1005 fi
1006
1007 PREFIX=/usr/local
1008 if [ "x$SETPREFIX" != "x" ]; then
1009   PREFIX=$SETPREFIX
1010 fi
1011
1012 EPREFIX=${PREFIX}
1013 if [ "x$SETEPREFIX" != "x" ]; then
1014   EPREFIX=$SETEPREFIX
1015 fi
1016
1017 BINDIR=${EPREFIX}/bin
1018 if [ "x$SETBINDIR" != "x" ]; then
1019   BINDIR=$SETBINDIR
1020 fi
1021
1022 SBINDIR=${EPREFIX}/sbin
1023 if [ "x$SETSBINDIR" != "x" ]; then
1024   SBINDIR=$SETSBINDIR
1025 fi
1026
1027 DATAROOTDIR=${PREFIX}/share
1028 if [ "x$SETDATAROOTDIR" != "x" ]; then
1029   DATAROOTDIR=$SETDATAROOTDIR
1030 fi
1031
1032 MANDIR=${DATAROOTDIR}/man
1033 if [ "x$SETMANDIR" != "x" ]; then
1034   MANDIR=$SETMANDIR
1035 fi
1036
1037 DOCDIR=${DATAROOTDIR}/doc/chrony
1038 if [ "x$SETDOCDIR" != "x" ]; then
1039   DOCDIR=$SETDOCDIR
1040 fi
1041
1042 LOCALSTATEDIR=/var
1043 if [ "x$SETLOCALSTATEDIR" != "x" ]; then
1044   LOCALSTATEDIR=$SETLOCALSTATEDIR
1045 fi
1046
1047 CHRONYRUNDIR=${LOCALSTATEDIR}/run/chrony
1048 if [ "x$SETCHRONYRUNDIR" != "x" ]; then
1049   CHRONYRUNDIR=$SETCHRONYRUNDIR
1050 fi
1051
1052 CHRONYVARDIR=${LOCALSTATEDIR}/lib/chrony
1053 if [ "x$SETCHRONYVARDIR" != "x" ]; then
1054   CHRONYVARDIR=$SETCHRONYVARDIR
1055 fi
1056
1057 add_def DEFAULT_CONF_FILE "\"$SYSCONFDIR/chrony.conf\""
1058 add_def DEFAULT_HWCLOCK_FILE "\"$default_hwclockfile\""
1059 add_def DEFAULT_PID_FILE "\"$default_pidfile\""
1060 add_def DEFAULT_RTC_DEVICE "\"$default_rtcdevice\""
1061 add_def DEFAULT_USER "\"$default_user\""
1062 add_def DEFAULT_COMMAND_SOCKET "\"$CHRONYRUNDIR/chronyd.sock\""
1063 add_def MAIL_PROGRAM "\"$mail_program\""
1064
1065 common_features="`get_features SECHASH IPV6 DEBUG`"
1066 chronyc_features="`get_features READLINE`"
1067 chronyd_features="`get_features CMDMON NTP REFCLOCK RTC PRIVDROP SCFILTER SIGND ASYNCDNS NTS`"
1068 add_def CHRONYC_FEATURES "\"$chronyc_features $common_features\""
1069 add_def CHRONYD_FEATURES "\"$chronyd_features $common_features\""
1070 echo "Features : $chronyd_features $chronyc_features $common_features"
1071
1072 if [ -f version.txt ]; then
1073   CHRONY_VERSION="`cat version.txt`"
1074 else
1075   CHRONY_VERSION="DEVELOPMENT"
1076 fi
1077
1078 add_def CHRONY_VERSION "\"${CHRONY_VERSION}\""
1079
1080 for f in Makefile doc/Makefile test/unit/Makefile
1081 do
1082   echo Creating $f
1083   sed -e "s%@EXTRA_OBJS@%${EXTRA_OBJECTS}%;\
1084           s%@EXTRA_CLI_OBJS@%${EXTRA_CLI_OBJECTS}%;\
1085           s%@CC@%${MYCC}%;\
1086           s%@CFLAGS@%${MYCFLAGS}%;\
1087           s%@CPPFLAGS@%${MYCPPFLAGS}%;\
1088           s%@LDFLAGS@%${MYLDFLAGS}%;\
1089           s%@LIBS@%${LIBS}%;\
1090           s%@EXTRA_LIBS@%${EXTRA_LIBS}%;\
1091           s%@EXTRA_CLI_LIBS@%${EXTRA_CLI_LIBS}%;\
1092           s%@SYSCONFDIR@%${SYSCONFDIR}%;\
1093           s%@BINDIR@%${BINDIR}%;\
1094           s%@SBINDIR@%${SBINDIR}%;\
1095           s%@DOCDIR@%${DOCDIR}%;\
1096           s%@MANDIR@%${MANDIR}%;\
1097           s%@LOCALSTATEDIR@%${LOCALSTATEDIR}%;\
1098           s%@CHRONYRUNDIR@%${CHRONYRUNDIR}%;\
1099           s%@CHRONYVARDIR@%${CHRONYVARDIR}%;\
1100           s%@DEFAULT_HWCLOCK_FILE@%${default_hwclockfile}%;\
1101           s%@DEFAULT_PID_FILE@%${default_pidfile}%;\
1102           s%@DEFAULT_RTC_DEVICE@%${default_rtcdevice}%;\
1103           s%@DEFAULT_USER@%${default_user}%;\
1104           s%@CHRONY_VERSION@%${CHRONY_VERSION}%;" \
1105           < ${f}.in > $f
1106 done
1107
1108 # =======================================================================
1109 # vim:et:sw=2:ht=2:sts=2:fdm=marker:cms=#%s
1110