configure.ac

   1 dnl $Id: configure.ac 2539 2007-05-02 20:11:40Z dhozac $
   2
   3 dnl Copyright (C) 2003,2004 Enrico Scholz <enrico.scholz@informatik.tu-chemnitz.de>
   4 dnl
   5 dnl This program is free software; you can redistribute it and/or modify
   6 dnl it under the terms of the GNU General Public License as published by
   7 dnl the Free Software Foundation; either version 2, or (at your option)
   8 dnl any later version.
   9 dnl
  10 dnl This program is distributed in the hope that it will be useful,
  11 dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 dnl GNU General Public License for more details.
  14 dnl
  15 dnl You should have received a copy of the GNU General Public License
  16 dnl along with this program; if not, write to the Free Software
  17 dnl Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  18 dnl
  19 dnl
  20 dnl As a special exception to the GNU General Public License, if you
  21 dnl distribute this file as part of a program that contains a configuration
  22 dnl script generated by Autoconf, you may include it under the same
  23 dnl distribution terms that you use for the rest of that program.
  24 dnl
  25
  26 AC_PREREQ(2.57)
  27 AC_INIT(util-vserver, 0.30.213, vserver@list.linux-vserver.org)
  28 AC_CONFIG_SRCDIR([src/capchroot.c])
  29 AC_CONFIG_HEADER([config.h])
  30
  31 AM_INIT_AUTOMAKE([1.8.3 gnits dist-bzip2 subdir-objects])
  32 AM_MAINTAINER_MODE
  33
  34 AC_CANONICAL_BUILD
  35 AC_CANONICAL_HOST
  36
  37 AC_SUBST(GPG_KEY, "0xFFD316AC53ACA43A!")
  38
  39 # Checks for programs.
  40 AC_PROG_CXX
  41 AC_PROG_CC
  42 AC_PROG_INSTALL
  43 AC_PROG_LN_S
  44 AM_PROG_CC_C_O
  45 AM_PATH_PYTHON(2.3)
  46 ENSC_CXXCOMPILER
  47 ENSC_C99COMPILER
  48
  49 ENSC_SET_SEARCHPATH([$PATH:/sbin:/usr/sbin:/usr/local/sbin])
  50 ENSC_PATHPROG_STANDARD_TOOLS
  51
  52 ENSC_PATHPROG(IP,        ip,,      [Usually, this tool is shipped in the 'iproute' or 'iproute2' package of your distribution])
  53 ENSC_PATHPROG(IPTABLES,  iptables)
  54 ENSC_PATHPROG(MODPROBE,  modprobe)
  55 ENSC_PATHPROG(NAMEIF,    nameif)
  56 ENSC_PATHPROG(NOHUP,     nohup)
  57 ENSC_PATHPROG(RMMOD,     rmmod)
  58 ENSC_PATHPROG(VCONFIG,   vconfig,, [See http://www.candelatech.com/~greear/vlan.html; usually this tool is shipped in the 'vconfig' or 'vlan' package of your distribution])
  59 ENSC_PATHPROG(WGET,      wget)
  60 ENSC_PATHPROG(FILE,      file,    [file])
  61 ENSC_PATHPROG(GZIP,      gzip,    [gzip])
  62 ENSC_PATHPROG(BZIP2,     bzip2,   [bzip2])
  63 ENSC_PATHPROG(CPIO,      cpio,    [cpio])
  64 ENSC_PATHPROG(RESTORE,   restore, [restore])
  65 ENSC_PATHPROG(RSYNC,     rsync,   [rsync])
  66
  67 ENSC_PATHPROG(DOXYGEN,   doxygen,  [:])
  68 ENSC_PATHPROG(XSLTP,     xsltp,    [:])
  69 ENSC_PATHPROG(XSLTPROC,  xsltproc, [:])
  70
  71
  72 AM_CONDITIONAL(HAVE_XSLTP,    test "$XSLTP"    != ':')
  73 AM_CONDITIONAL(HAVE_XSLTPROC, test "$XSLTPROC" != ':')
  74
  75 if test x"$prefix" = x/; then
  76         prefix=
  77 fi
  78
  79 ENSC_CHECK_CC_FLAG([-std=c99 -Wall -pedantic -W])
  80 ENSC_CHECK_CXX_FLAG([-ansi   -Wall -pedantic -W -fmessage-length=0])
  81
  82 AC_MSG_CHECKING([whether to enable extra optimizations])
  83 AC_ARG_ENABLE([extra-optimizations],
  84               [AC_HELP_STRING([--disable-extra-optimizations],
  85                               [disable certain extra optimizations (default: no)])],
  86               [case "$enableval" in
  87                   (yes) use_extra_optimizations=1;;
  88                   (no)  use_extra_optimizations=;;
  89                   (*)   AC_MSG_ERROR(['$enableval' is not a valid value for '--disable-extra-optimizations']);;
  90                esac],
  91               [use_extra_optimizations=1])
  92
  93 if test x"$use_extra_optimizations" = x; then
  94         AC_MSG_RESULT(no)
  95 else
  96         AC_MSG_RESULT(yes)
  97         ENSC_CHECK_CC_FLAG([-funit-at-a-time])
  98         ENSC_CHECK_CXX_FLAG([-funit-at-a-time])
  99 fi
 100
 101 AC_MSG_CHECKING([whether to enable debug-code in library])
 102 AC_ARG_ENABLE([lib-debug],
 103               [AC_HELP_STRING([--enable-lib-debug],
 104                               [enable additional debug code in library (default: no)])],
 105               [case "$enableval" in
 106                   (yes) use_lib_debug=1;;
 107                   (no)  use_lib_debug=;;
 108                   (*)   AC_MSG_ERROR(['$enableval' is not a valid value for '--enable-lib-debug']);;
 109                esac],
 110               [ use_lib_debug= ])
 111
 112 if test x"$use_lib_debug" = x; then
 113         AC_SUBST(LIB_DEBUG_CPPFLAGS, [-DNDEBUG])
 114         AC_MSG_RESULT(no)
 115 else
 116         AC_SUBST(LIB_DEBUG_CPPFLAGS, [])
 117         AC_MSG_RESULT(yes)
 118 fi
 119
 120 AC_MSG_CHECKING([whether to enable expensive tests])
 121 AC_ARG_ENABLE([expensive-tests],
 122               [AC_HELP_STRING([--enable-expensive-tests],
 123                               [disable tests which might be expensive on some systems (default: no)])],
 124               [case "$enableval" in
 125                  (yes|no)  use_expensive_tests=$enableval;;
 126                  (*)       AC_MSG_ERROR(['$enableval' is not a valid value for '--enable-expensive-tests']);;
 127                esac],
 128               [ use_expensive_tests=no ])
 129 AC_MSG_RESULT($use_expensive_tests)
 130
 131 AC_SUBST(ENSC_USE_EXPENSIVE_TESTS, "$use_expensive_tests")
 132
 133
 134 ENSC_CHECK_PERSONALITY_FLAGS
 135
 136 AC_ARG_VAR(CC, [The C compiler])
 137
 138 ENSC_INITRDDIR(initrddir)
 139 ENSC_RELEASE(RELEASE_CPPFLAGS)
 140
 141 # HACK: This needs to be before ENSC_DIETLIBC_NEED_COMPAT, or the alternative
 142 # syscalls will never be enabled for glibc.
 143 ENSC_SYSCALLNR(vserver,273,[lib/syscall-fallback.h])
 144 ENSC_SYSCALL
 145
 146 dnl ###########################
 147 dnl
 148 dnl {some dietlibc related tests
 149 dnl
 150
 151 case $host_cpu in
 152         (i*86|athlon)   min_diet_ver=0.25;;
 153         (ia64|hppa*)    min_diet_ver=0.29;;
 154         (sparc*)        min_diet_ver=0.30;;
 155         (x86_64)        min_diet_ver=0.27;;
 156         (*)             min_diet_ver=0.28;;
 157 esac
 158
 159 ENSC_ENABLE_DIETLIBC(USE_DIETLIBC, [$min_diet_ver])
 160
 161 if test x"$ensc_have_dietlibc" = xno; then
 162         AC_MSG_WARN([***                                                         ***])
 163         AC_MSG_WARN([*** it is strongly recommended to link util-vserver against ***])
 164         AC_MSG_WARN([*** dietlibc;  glibc's NSS functions are very unreliable in ***])
 165         AC_MSG_WARN([*** chroot() environments,  so you have to  expect problems ***])
 166         AC_MSG_WARN([*** there.                                                  ***])
 167         AC_MSG_WARN([***                                                         ***])
 168         AM_CONDITIONAL(USE_DIETLIBC_COMPAT, false)
 169 else
 170         # HACK: libtool does not have cmdline options to build only
 171         # dynamic libraries; this can be done with the
 172         # '--disable-static' ./configure option only.  As our static
 173         # libraries will be build with dietlibc, we have to do set
 174         # this option which is evaluated by 'AC_PROG_LIBTOOL'
 175         # below.  Therefore, this macro must not be called earlier.
 176         enable_static=no
 177
 178         ENSC_DIETLIBC_NEED_COMPAT(USE_DIETLIBC_COMPAT)
 179 fi
 180
 181 AM_CONDITIONAL(ENSC_USE_DIETLIBC, test x"$ensc_have_dietlibc" = xyes)
 182 AM_CONDITIONAL(ENSC_USE_GLIBC,    true)
 183
 184 # HACK: see comments at 'enable_static' above
 185 AC_PROG_LIBTOOL
 186 dnl
 187 dnl dietlibc stuff ends here}
 188 dnl
 189 dnl ##########################
 190
 191
 192 ENSC_UV_VROOTDIR(vserverdir)
 193 ENSC_CHANGELOG
 194
 195
 196 dnl ##########################
 197 dnl
 198 dnl {Check whether to use external kernel headers
 199 dnl
 200 AC_MSG_CHECKING([whether to use internal kernel headers])
 201 AC_ARG_ENABLE([internal-headers],
 202               [AC_HELP_STRING([--disable-internal-headers],
 203                               [use vserver specific headers from the kernel instead of the shipped versions (default: no)])],
 204               [case "$enableval" in
 205                   (yes|no) ;;
 206                   (*)      AC_MSG_ERROR(['$i' is not a supported value for '--disable-internal-headers']);;
 207                esac],
 208               [enable_internal_headers=yes])
 209
 210 AM_CONDITIONAL(ENSC_ENABLE_INTERNAL_HEADERS, [test x"$enable_internal_headers" = xyes])
 211 AC_MSG_RESULT([$enable_internal_headers])
 212 dnl
 213 dnl the check regarding external kernel headers ends here}
 214 dnl
 215 dnl ##########################
 216
 217 dnl ##########################
 218 dnl
 219 dnl {Check for the APIs to be used
 220 dnl
 221 AH_TEMPLATE(VC_ENABLE_API_COMPAT,   [Enable support for compatibility syscall API])
 222 AH_TEMPLATE(VC_ENABLE_API_LEGACY,   [Enable support for old, /proc parsing API])
 223 AH_TEMPLATE(VC_ENABLE_API_V11,      [Enable support for API of vserver 1.1.x])
 224 AH_TEMPLATE(VC_ENABLE_API_FSCOMPAT, [Enable support for filesystem compatibility API])
 225 AH_TEMPLATE(VC_ENABLE_API_V13OBS,   [Enable support for some obsoleted API of vserver 1.3.x])
 226 AH_TEMPLATE(VC_ENABLE_API_V13,      [Enable support for API of vserver 1.3.x])
 227 AH_TEMPLATE(VC_ENABLE_API_NET,      [Enable support for network context API])
 228 AH_TEMPLATE(VC_ENABLE_API_V21,      [Enable support for API of vserver 2.1.x])
 229 AH_TEMPLATE(VC_ENABLE_API_OLDPROC,  [Enable API for a backward compatible /proc parsing])
 230 AH_TEMPLATE(VC_ENABLE_API_OLDUTS,   [Enable API for a backward compatible uts handling])
 231
 232 AC_MSG_CHECKING([for supported APIs])
 233 AC_ARG_ENABLE([apis],
 234               [AC_HELP_STRING([--enable-apis=APIS],
 235                               [enable support for the given apis; possible values are: legacy,compat,v11,fscompat,v13obs,v13,net, ALL,NOLEGACY (default: v13,net,v21)])],
 236               [],
 237               [enable_apis=v13,net,v21])
 238
 239 test x"$enable_apis" != xALL      || enable_apis='legacy,compat,v11,fscompat,v13obs,v13,net,v21'
 240 test x"$enable_apis" != xNOLEGACY || enable_apis='compat,v11,fscompat,v13,net,v21'
 241 enable_api_oldproc=
 242 enable_api_olduts=
 243 old_IFS=$IFS
 244 IFS=,;
 245
 246 for i in $enable_apis; do
 247         case "$i" in
 248                 (compat)        AC_DEFINE(VC_ENABLE_API_COMPAT,   1)
 249                                 enable_api_oldproc=${enable_api_oldproc:-1}
 250                                 enable_api_olduts=${enable_api_olduts:-1}
 251                                 ;;
 252                 (legacy)        AC_DEFINE(VC_ENABLE_API_LEGACY,   1)
 253                                 enable_api_oldproc=${enable_api_oldproc:-1}
 254                                 enable_api_olduts=${enable_api_olduts:-1}
 255                                 ;;
 256                 (v11)           AC_DEFINE(VC_ENABLE_API_V11,      1)
 257                                 enable_api_oldproc=${enable_api_oldproc:-1}
 258                                 enable_api_olduts=${enable_api_olduts:-1}
 259                                 ;;
 260                 (fscompat)      AC_DEFINE(VC_ENABLE_API_FSCOMPAT, 1);;
 261                 (v13obs)        AC_DEFINE(VC_ENABLE_API_V13OBS,   1)
 262                                 AC_DEFINE(VC_ENABLE_API_V13,      1);;
 263                 (v13)           AC_DEFINE(VC_ENABLE_API_V13,      1);;
 264                 (net)           AC_DEFINE(VC_ENABLE_API_NET,      1);;
 265                 (v21)           AC_DEFINE(VC_ENABLE_API_V21,      1);;
 266                 (oldproc)       enable_api_oldproc=2;;
 267                 (olduts)        enable_api_olduts=2;;
 268                 (*)             AC_MSG_ERROR(['$i' is not a supported API]);;
 269         esac
 270 done
 271 IFS=$old_IFS
 272 if test x"$enable_api_oldproc" != x; then
 273         AC_DEFINE(VC_ENABLE_API_OLDPROC, 1)
 274         test x"$enable_api_oldproc" != x2 && enable_apis="$enable_apis,oldproc"
 275 fi
 276 if test x"$enable_api_olduts" != x; then
 277         AC_DEFINE(VC_ENABLE_API_OLDUTS, 1)
 278         test x"$enable_api_olduts" != x2 && enable_apis="$enable_apis,olduts"
 279 fi
 280 AC_MSG_RESULT([$enable_apis])
 281 dnl
 282 dnl the check for used APIs ends here}
 283 dnl
 284 dnl ##########################
 285
 286
 287 ENSC_CHECK_EXT2FS_HEADER
 288 AC_CHECK_FUNCS([vserver])
 289 AC_CHECK_DECLS(MS_MOVE,,,[#include <linux/fs.h>])
 290 AC_CHECK_TYPES(xid_t,,,[#include <sys/types.h>])
 291 AC_CHECK_TYPES(nid_t,,,[#include <sys/types.h>])
 292
 293 AC_CHECK_HEADERS([sys/capability.h])
 294
 295 dnl vlogin might need -lutil
 296 if test x"$ensc_have_dietlibc" = xno; then
 297         AC_CHECK_FUNC([openpty],, [AC_CHECK_LIB([util], [openpty],, [AC_MSG_ERROR([
 298 ****
 299 **** openpty could not be found
 300 ****])])])
 301 fi
 302
 303
 304 dnl ########################
 305 dnl
 306 dnl {check for beecrypt
 307 dnl
 308 if test x"$ensc_cv_c99_c99compiler" = xyes; then
 309         ensc_have_beecrypt=yes
 310
 311         if test x"$ensc_have_beecrypt" = xyes; then
 312                 AC_CHECK_HEADER([beecrypt/beecrypt.h], [ : ],
 313                                 [ ensc_have_beecrypt=no ])
 314         fi
 315
 316         if test x"$ensc_have_beecrypt" = xyes; then
 317                 AC_CHECK_LIB(beecrypt, hashFunctionContextInit, [ : ],
 318                              [ ensc_have_beecrypt=no ])
 319         fi
 320
 321         if test x"$ensc_have_beecrypt" != xyes; then
 322                 AC_MSG_WARN([
 323 ****
 324 **** 'beecrypt' could not be found;
 325 **** this will disable the build of 'vhashify'
 326 ****])
 327         fi
 328 else
 329         ensc_have_beecrypt=no
 330 fi
 331
 332 AM_CONDITIONAL(ENSC_HAVE_BEECRYPT, test x"$ensc_have_beecrypt" = xyes)
 333 AM_CONDITIONAL(ENSC_CAN_BEECRYPT_WITH_DIETLIBC, false)
 334 dnl
 335 dnl beecrypt stuff ends here}
 336 dnl
 337 dnl ########################
 338
 339 dnl ########################
 340 dnl
 341 dnl {check for libnl
 342 dnl
 343
 344 ensc_have_libnl=yes
 345
 346 if test x"$ensc_have_libnl" = xyes; then
 347         AC_CHECK_HEADERS([netlink/netlink.h netlink/route/addr.h], [ : ],
 348                          [ ensc_have_libnl=no ])
 349 fi
 350
 351 if test x"$ensc_have_libnl" = xyes; then
 352         AC_CHECK_LIB(nl, rtnl_addr_alloc, [ : ],
 353                      [ ensc_have_libnl=no ])
 354 fi
 355
 356 if test x"$ensc_have_libnl" != xyes; then
 357         AC_MSG_WARN([
 358 ****
 359 **** 'libnl' could not be found;
 360 **** this will disable the build of 'vip6-autod'
 361 ****])
 362 fi
 363
 364 AM_CONDITIONAL(ENSC_HAVE_LIBNL, test x"$ensc_have_libnl" = xyes)
 365
 366 dnl
 367 dnl libnl stuff ends here}
 368 dnl
 369 dnl #######################
 370
 371
 372 dnl Check what distro this is, use Gentoo initscripts if appropriate
 373 AC_MSG_CHECKING([for host initscripts])
 374 AC_ARG_WITH(initscripts, AC_HELP_STRING([--with-initscripts=TYPE], [force host initscripts; valid values are 'gentoo' and 'sysv' (default: guess)]), [
 375         case "$withval" in
 376         gentoo) ensc_with_init=gentoo;;
 377         sysv)   ensc_with_init=sysv;;
 378         *)      AC_MSG_ERROR([invalid initscripts value, only gentoo and sysv are supported]);;
 379         esac
 380         ], [
 381         if test -e /etc/gentoo-release; then
 382                 ensc_with_init=gentoo
 383         else
 384                 ensc_with_init=sysv
 385         fi
 386         ])
 387 AC_MSG_RESULT([$ensc_with_init])
 388 AM_CONDITIONAL(HAVE_GENTOO_INIT, test x"$ensc_with_init" = xgentoo)
 389 AM_CONDITIONAL(HAVE_SYSV_INIT, test x"$ensc_with_init" = xsysv)
 390
 391
 392 dnl BIG HACK! Do some autodetection here!
 393 AC_DEFINE(UTMP_GID, [22], [The utmp gid-number])
 394
 395 if false; then
 396         AC_DEFINE(HAVE_GROWING_STACK, [1], [Define to 1 if the stack is on growing addresses])
 397 fi
 398
 399 AC_DEFINE(_FILE_OFFSET_BITS, [64], [Use 64bit interface for filesystem operations])
 400
 401 dnl ########################
 402 dnl
 403 dnl {The final info-page
 404 dnl
 405 ensc_cxx_affected=" (affected: vbuild, vcheck)"
 406 ensc_c99_affected=" (affected: vunify, vcopy, vhashify, vdlimit)"
 407 ensc_diet_msg=" (you have been warned)"
 408 ensc_diet_version_msg=" ($ensc_version_dietlibc)"
 409 ensc_diet_compat_msg=" (using -lcompat)"
 410 test x"$ensc_cv_cxx_cxxcompiler"    = xno || ensc_cxx_affected=
 411 test x"$ensc_cv_c99_c99compiler"    = xno || ensc_c99_affected=
 412 test x"$ensc_have_dietlibc"         = xno || ensc_diet_msg=
 413 test x"$ensc_version_dietlibc"     != x   || ensc_diet_version_msg=
 414 test x"$ensc_have_dietlibc$ensc_cv_c_dietlibc_compat" = xyesyes || ensc_diet_compat_msg=
 415
 416 AH_BOTTOM([#include "compat.h"
 417 ])
 418 AC_CONFIG_COMMANDS_PRE([
 419                         FEATURES_TXT="\
 420 Features:
 421                        CC: $CC, $($CC   --version | sed -e '1p;d')
 422                       CXX: $CXX, $($CXX --version | sed -e '1p;d')
 423                  CPPFLAGS: '$CPPFLAGS'
 424                    CFLAGS: '$CFLAGS'
 425                  CXXFLAGS: '$CXXFLAGS'
 426                build/host: $build/$host
 427              Use dietlibc: $ensc_have_dietlibc$ensc_diet_version_msg$ensc_diet_msg$ensc_diet_compat_msg
 428        Build C++ programs: $ensc_cv_cxx_cxxcompiler$ensc_cxx_affected
 429        Build C99 programs: $ensc_cv_c99_c99compiler$ensc_c99_affected
 430            Available APIs: $enable_apis
 431             ext2fs Source: $ensc_cv_test_ext2fs_header
 432     syscall(2) invocation: $with_syscall
 433       vserver(2) syscall#: $ensc_cv_value_syscall_vserver
 434
 435 Paths:
 436                    prefix: $prefix
 437         sysconf-Directory: $sysconfdir
 438             cfg-Directory: $sysconfdir/vservers
 439          initrd-Directory: $initrddir
 440        pkgstate-Directory: $localstatedir/run/vservers
 441           vserver-Rootdir: $vserverdir
 442 "
 443                         echo "$FEATURES_TXT" >FEATURES.txt
 444                         ])
 445 dnl
 446 dnl final info-page ends here}
 447 dnl
 448 dnl ########################
 449
 450 AC_CONFIG_FILES([util-vserver.spec Makefile distrib/Makefile lib/apidoc/Doxyfile])
 451 AC_OUTPUT
 452
 453 AC_MSG_NOTICE([
 454
 455 $PACKAGE_STRING
 456
 457 $FEATURES_TXT])