config/lustre-build.m4

   1 #
   2 # LB_CHECK_VERSION
   3 #
   4 # Verify that LUSTRE_VERSION was defined properly
   5 #
   6 AC_DEFUN([LB_CHECK_VERSION], [
   7 AS_IF([test "LUSTRE_VERSION" = "LUSTRE""_VERSION"],
   8         [AC_MSG_ERROR([This script was not built with a version number.])])
   9 ]) # LB_CHECK_VERSION
  10
  11 #
  12 # LB_CANONICAL_SYSTEM
  13 #
  14 # fixup $target_os for use in other places
  15 #
  16 AC_DEFUN([LB_CANONICAL_SYSTEM], [
  17 case $target_os in
  18         linux*)
  19                 lb_target_os="linux"
  20                 ;;
  21         darwin*)
  22                 lb_target_os="darwin"
  23                 ;;
  24         solaris*)
  25                 lb_target_os="SunOS"
  26                 ;;
  27 esac
  28 AC_SUBST(lb_target_os)
  29 ]) # LB_CANONICAL_SYSTEM
  30
  31 #
  32 # LB_DOWNSTREAM_RELEASE
  33 #
  34 AC_DEFUN([LB_DOWNSTREAM_RELEASE],
  35 [AC_ARG_WITH([downstream-release],
  36         AC_HELP_STRING([--with-downstream-release=string],
  37                 [set a string in the BUILD_VERSION and RPM Release: (default is nothing)]),
  38         [DOWNSTREAM_RELEASE=$with_downstream_release],
  39         [ # if not specified, see if it's in the META file
  40         AS_IF([test -f META],
  41                 [DOWNSTREAM_RELEASE=$(sed -ne '/^LOCAL_VERSION =/s/.*= *//p' META)])
  42         ])
  43 AC_SUBST(DOWNSTREAM_RELEASE)
  44 ]) # LB_DOWNSTREAM_RELEASE
  45
  46 #
  47 # LB_BUILDID
  48 #
  49 # Check if the source is a GA release and if not, set a "BUILDID"
  50 #
  51 # Currently there are at least two ways/modes of/for doing this.  One
  52 # is if we are in a valid git repository, the other is if we are in a
  53 # non-git source tree of some form.  Building the latter from the former
  54 # will be handled here.
  55 AC_DEFUN([LB_BUILDID], [
  56 AC_CACHE_CHECK([for buildid], [lb_cv_buildid], [
  57 lb_cv_buildid=""
  58 AS_IF([git branch >/dev/null 2>&1], [
  59         ffw=0
  60         hash=""
  61         ver=$(git describe --match v[[0-9]]_*_[[0-9]]* --tags)
  62         if [[[ $ver = *-*-* ]]]; then
  63                 hash=${ver##*-}
  64                 ffw=${ver#*-}
  65                 ffw=${ffw%-*}
  66                 ver=${ver%%-*}
  67         fi
  68         # it's tempting to use [[ $ver =~ ^v([0-9]+_)+([0-9]+|RC[0-9]+)$ ]]
  69         # here but the portability of the regex on the right is dismal
  70         # (thanx suse)
  71         if echo "$ver" | egrep -q "^v([[0-9]]+_)+([[0-9]]+|RC[[0-9]]+)$"; then
  72                 ver=$(echo $ver | sed -e 's/^v\(.*\)/\1/' \
  73                                       -e 's/_RC[[0-9]].*$//' -e 's/_/./g')
  74         fi
  75
  76         # a "lustre fix" value of .0 should be truncated
  77         if [[[ $ver = *.*.*.0 ]]]; then
  78                 ver=${ver%.0}
  79         fi
  80         # ditto for a "lustre fix" value of _0
  81         if [[[ $ver = v*_*_*_0 ]]]; then
  82                 ver=${ver%_0}
  83         fi
  84         if [[[ $ver = v*_*_* ]]]; then
  85                 ver=${ver#v}
  86                 ver=${ver//_/.}
  87         fi
  88
  89         if test "$ver" != "$VERSION"; then
  90                 AC_MSG_WARN([most recent tag found: $ver does not match current version $VERSION.])
  91         fi
  92
  93         if test "$ffw" != "0"; then
  94                 lb_cv_buildid="$hash"
  95         fi
  96 ], [test -f META], [
  97         lb_cv_buildid=$(sed -ne '/^BUILDID =/s/.*= *//p' META)
  98 ])
  99 ])
 100 AS_IF([test -z "$lb_cv_buildid"], [
 101         AC_MSG_WARN([
 102
 103 FIXME: I don't know how to deal with source trees outside of git that
 104 don't have a META file. Not setting a buildid.
 105 ])
 106 ])
 107 BUILDID=$lb_cv_buildid
 108 AC_SUBST(BUILDID)
 109 ]) # LB_BUILDID
 110
 111 #
 112 # LB_CHECK_FILE
 113 #
 114 # Check for file existance even when cross compiling
 115 # $1 - file to check
 116 # $2 - do 'yes'
 117 # $3 - do 'no'
 118 #
 119 AC_DEFUN([LB_CHECK_FILE], [
 120 AS_VAR_PUSHDEF([lb_file], [lb_cv_file_$1])dnl
 121 AC_CACHE_CHECK([for $1], lb_file, [
 122 AS_IF([test -r "$1"],
 123         [AS_VAR_SET(lb_file, [yes])],
 124         [AS_VAR_SET(lb_file, [no])])
 125 ])
 126 AS_VAR_IF([lb_file], [yes], [$2], [$3])[]dnl
 127 AS_VAR_POPDEF([lb_file])dnl
 128 ]) # LB_CHECK_FILE
 129
 130 #
 131 # LB_ARG_LIBS_INCLUDES
 132 #
 133 # support for --with-foo, --with-foo-includes, and --with-foo-libs in
 134 # a single magical macro
 135 #
 136 AC_DEFUN([LB_ARG_LIBS_INCLUDES], [
 137 lb_pathvar="m4_bpatsubst([$2], -, _)"
 138 AC_MSG_CHECKING([for $1])
 139 AC_ARG_WITH([$2],
 140         AC_HELP_STRING([--with-$2=path],
 141                 [path to $1]),
 142         [], [withval=$4])
 143 AS_IF([test "x$withval" = xyes],
 144         [eval "$lb_pathvar='$3'"],
 145         [eval "$lb_pathvar='$withval'"])
 146 AC_MSG_RESULT([${!lb_pathvar:-no}])
 147
 148 AS_IF([test "x${!lb_pathvar}" != x -a "x${!lb_pathvar}" != xno], [
 149         AC_MSG_CHECKING([for $1 includes])
 150         AC_ARG_WITH([$2-includes],
 151                 AC_HELP_STRING([--with-$2-includes=path],
 152                         [path to $1 includes]),
 153                 [], [withval="yes"])
 154
 155         lb_includevar="${lb_pathvar}_includes"
 156         AS_IF([test "x$withval" = xyes],
 157                 [eval "${lb_includevar}='${!lb_pathvar}/include'"],
 158                 [eval "${lb_includevar}='$withval'"])
 159         AC_MSG_RESULT([${!lb_includevar}])
 160
 161         AC_MSG_CHECKING([for $1 libs])
 162         AC_ARG_WITH([$2-libs],
 163                 AC_HELP_STRING([--with-$2-libs=path],
 164                         [path to $1 libs]),
 165                 [], [withval="yes"])
 166
 167         lb_libvar="${lb_pathvar}_libs"
 168         AS_IF([test "x$withval" = xyes],
 169                 [eval "${lb_libvar}='${!lb_pathvar}/lib'"],
 170                 [eval "${lb_libvar}='$withval'"])
 171         AC_MSG_RESULT([${!lb_libvar}])
 172 ])
 173 ]) # LB_ARG_LIBS_INCLUDES
 174
 175 #
 176 # LB_PATH_LIBSYSIO
 177 #
 178 # Handle internal/external libsysio
 179 #
 180 AC_DEFUN([LB_PATH_LIBSYSIO], [
 181 AC_MSG_CHECKING([location of libsysio])
 182 AC_ARG_WITH([sysio],
 183         AC_HELP_STRING([--with-sysio=path],
 184                 [set path to libsysio source (default is included libsysio)]),
 185         [], [
 186                 AS_IF([test "x$lb_target_os" = xlinux],
 187                         [with_sysio="yes"],
 188                         [with_sysio="no"])
 189         ])
 190 AS_IF([test "x$with_sysio" = xyes], [
 191                 AC_MSG_RESULT([internal])
 192                 LB_CHECK_FILE([$srcdir/libsysio/src/rmdir.c], [], [
 193                         AC_MSG_ERROR([A complete internal libsysio was not found.])
 194                 ])
 195                 LIBSYSIO_SUBDIR="libsysio"
 196                 SYSIO="$PWD/libsysio"
 197         ], [test "x$with_sysio" = xno], [
 198                 AC_MSG_RESULT([disabled])
 199         ], [
 200                 AC_MSG_RESULT([$with_sysio])
 201                 LB_CHECK_FILE([$with_sysio/lib/libsysio.a], [], [
 202                         AC_MSG_ERROR([A complete (built) external libsysio was not found.])
 203                 ])
 204                 LIBSYSIO_SUBDIR=""
 205                 SYSIO=$with_sysio
 206                 with_sysio="yes"
 207         ])
 208 enable_sysio=$with_sysio
 209 # We have to configure even if we don't build here for make dist to work
 210 AC_CONFIG_SUBDIRS([libsysio])
 211 ]) # LB_PATH_LIBSYSIO
 212
 213 #
 214 # LB_PATH_LUSTREIOKIT
 215 #
 216 # We no longer handle external lustre-iokit
 217 #
 218 AC_DEFUN([LB_PATH_LUSTREIOKIT], [
 219 AC_MSG_CHECKING([whether to build iokit])
 220 AC_ARG_ENABLE([iokit],
 221         AC_HELP_STRING([--disable-iokit],
 222                 [disable iokit (default is enable)]),
 223         [], [enable_iokit="yes"])
 224 AC_MSG_RESULT([$enable_iokit])
 225 AS_IF([test "x$enable_iokit" = xyes],
 226         [LUSTREIOKIT_SUBDIR="lustre-iokit"],
 227         [LUSTREIOKIT_SUBDIR=""])
 228 AC_SUBST(LUSTREIOKIT_SUBDIR)
 229 AM_CONDITIONAL([BUILD_LUSTREIOKIT], [test "x$enable_iokit" = xyes])
 230 ]) # LB_PATH_LUSTREIOKIT
 231
 232 # Define no libcfs by default.
 233 AC_DEFUN([LB_LIBCFS_DIR], [
 234 AS_IF([test "x$libcfs_is_module" = xyes], [
 235                 LIBCFS_INCLUDE_DIR="libcfs/include"
 236                 LIBCFS_SUBDIR="libcfs"
 237         ], [
 238                 LIBCFS_INCLUDE_DIR="lnet/include"
 239                 LIBCFS_SUBDIR=""
 240         ])
 241 AC_SUBST(LIBCFS_INCLUDE_DIR)
 242 AC_SUBST(LIBCFS_SUBDIR)
 243 ]) # LB_LIBCFS_DIR
 244
 245 #
 246 # LB_PATH_SNMP
 247 #
 248 # check for in-tree snmp support
 249 #
 250 AC_DEFUN([LB_PATH_SNMP], [
 251 LB_CHECK_FILE([$srcdir/snmp/lustre-snmp.c], [SNMP_DIST_SUBDIR="snmp"])
 252 AC_SUBST(SNMP_DIST_SUBDIR)
 253 AC_SUBST(SNMP_SUBDIR)
 254 ]) # LB_PATH_SNMP
 255
 256 #
 257 # LB_CONFIG_MODULES
 258 #
 259 # Build kernel modules?
 260 #
 261 AC_DEFUN([LB_CONFIG_MODULES], [
 262 AC_MSG_CHECKING([whether to build Linux kernel modules])
 263 AC_ARG_ENABLE([modules],
 264         AC_HELP_STRING([--disable-modules],
 265                 [disable building of Lustre kernel modules]),
 266         [], [
 267                 LC_TARGET_SUPPORTED([enable_modules="yes"],
 268                                     [enable_modules="no"])
 269         ])
 270 AC_MSG_RESULT([$enable_modules ($target_os)])
 271
 272 AS_IF([test "x$enable_modules" = xyes], [
 273         AS_CASE([$target_os],
 274                 [linux*], [
 275                         LB_PROG_LINUX
 276                         LIBCFS_PROG_LINUX
 277                         LN_PROG_LINUX
 278                         AS_IF([test "x$enable_server" != xno], [LB_EXT4_SRC_DIR])
 279                         LC_PROG_LINUX
 280                 ], [darwin*], [
 281                         LB_PROG_DARWIN
 282                         LIBCFS_PROG_DARWIN
 283                 ], [*], [
 284                         # This is strange - Lustre supports a target we don't
 285                         AC_MSG_ERROR([Modules are not supported on $target_os])
 286                 ])
 287         ])
 288 ]) # LB_CONFIG_MODULES
 289
 290 #
 291 # LB_CONFIG_UTILS
 292 #
 293 # Build utils?
 294 #
 295 AC_DEFUN([LB_CONFIG_UTILS], [
 296 AC_MSG_CHECKING([whether to build Lustre utilities])
 297 AC_ARG_ENABLE([utils],
 298         AC_HELP_STRING([--disable-utils],
 299                 [disable building of Lustre utility programs]),
 300         [], [enable_utils="yes"])
 301 AC_MSG_RESULT([$enable_utils])
 302 AS_IF([test "x$enable_utils" = xyes], [LB_CONFIG_INIT_SCRIPTS])
 303 ]) # LB_CONFIG_UTILS
 304
 305 #
 306 # LB_CONFIG_TESTS
 307 #
 308 # Build tests?
 309 #
 310 AC_DEFUN([LB_CONFIG_TESTS], [
 311 AC_MSG_CHECKING([whether to build Lustre tests])
 312 AC_ARG_ENABLE([tests],
 313         AC_HELP_STRING([--disable-tests],
 314                 [disable building of Lustre tests]),
 315         [], [enable_tests="yes"])
 316 AC_MSG_RESULT([$enable_tests])
 317 ]) # LB_CONFIG_TESTS
 318
 319 #
 320 # LB_CONFIG_DIST
 321 #
 322 # Just enough configure so that "make dist" is useful
 323 #
 324 # this simply re-adjusts some defaults, which of course can be overridden
 325 # on the configure line after the --for-dist option
 326 #
 327 AC_DEFUN([LB_CONFIG_DIST], [
 328 AC_MSG_CHECKING([whether to configure just enough for make dist])
 329 AC_ARG_ENABLE([dist],
 330         AC_HELP_STRING([--enable-dist],
 331                         [only configure enough for make dist]),
 332         [], [enable_dist="no"])
 333 AC_MSG_RESULT([$enable_dist])
 334 AS_IF([test "x$enable_dist" != xno], [
 335         enable_doc="no"
 336         enable_utils="no"
 337         enable_tests="no"
 338         enable_modules="no"
 339         enable_liblustre="no"
 340 ])
 341 ]) # LB_CONFIG_DIST
 342
 343 #
 344 # LB_CONFIG_DOCS
 345 #
 346 # Build docs?
 347 #
 348 AC_DEFUN([LB_CONFIG_DOCS], [
 349 AC_MSG_CHECKING([whether to build Lustre docs])
 350 AC_ARG_ENABLE([doc],
 351         AC_HELP_STRING([--disable-doc],
 352                         [skip creation of pdf documentation]),
 353         [], [enable_doc="no"])
 354 AC_MSG_RESULT([$enable_doc])
 355 AS_IF([test "x$enable_doc" = xyes],
 356         [ENABLE_DOC=1], [ENABLE_DOC=0])
 357 AC_SUBST(ENABLE_DOC)
 358 ]) # LB_CONFIG_DOCS
 359
 360 #
 361 # LB_CONFIG_INIT_SCRIPTS
 362 #
 363 # our init scripts only work on red hat linux
 364 #
 365 AC_DEFUN([LB_CONFIG_INIT_SCRIPTS], [
 366 ENABLE_INIT_SCRIPTS=0
 367 AS_IF([test x$enable_utils = xyes], [
 368         AC_CACHE_CHECK([whether to install init scripts], [lb_cv_enable_init_scripts], [
 369         # our scripts only work on red hat systems
 370         AS_IF([test -f /etc/init.d/functions -a -f /etc/sysconfig/network],
 371                 [lb_cv_enable_init_scripts="yes"],
 372                 [lb_cv_enable_init_scripts="no"])
 373         ])
 374         AS_IF([test "x$lb_cv_enable_init_scripts" = xyes],
 375                 [ENABLE_INIT_SCRIPTS=1])
 376 ])
 377 AC_SUBST(ENABLE_INIT_SCRIPTS)
 378 ])
 379
 380 #
 381 # LB_CONFIG_HEADERS
 382 #
 383 # add -include config.h
 384 #
 385 AC_DEFUN([LB_CONFIG_HEADERS], [
 386 AC_CONFIG_HEADERS([config.h])
 387 CPPFLAGS="-include $PWD/config.h $CPPFLAGS"
 388 EXTRA_KCFLAGS="-include $PWD/config.h $EXTRA_KCFLAGS"
 389 AC_SUBST(EXTRA_KCFLAGS)
 390 ]) # LB_CONFIG_HEADERS
 391
 392 #
 393 # LB_INCLUDE_RULES
 394 #
 395 # defines for including the toplevel Rules
 396 #
 397 AC_DEFUN([LB_INCLUDE_RULES], [
 398 INCLUDE_RULES="include $PWD/Rules"
 399 AC_SUBST(INCLUDE_RULES)
 400 ]) # LB_INCLUDE_RULES
 401
 402 #
 403 # LB_PATH_DEFAULTS
 404 #
 405 # 'fixup' default paths
 406 #
 407 AC_DEFUN([LB_PATH_DEFAULTS], [
 408 # directories for binaries
 409 AC_PREFIX_DEFAULT([/usr])
 410
 411 sysconfdir='$(CROSS_PATH)/etc'
 412 AC_SUBST(sysconfdir)
 413
 414 # Directories for documentation and demos.
 415 docdir='$(datadir)/doc/$(PACKAGE)'
 416 AC_SUBST(docdir)
 417
 418 LIBCFS_PATH_DEFAULTS
 419 LN_PATH_DEFAULTS
 420 LC_PATH_DEFAULTS
 421 ]) # LB_PATH_DEFAULTS
 422
 423 #
 424 # LB_PROG_CC
 425 #
 426 # checks on the C compiler
 427 #
 428 AC_DEFUN([LB_PROG_CC], [
 429 AC_PROG_RANLIB
 430 AC_CHECK_TOOL(LD, [ld], [no])
 431 AC_CHECK_TOOL(OBJDUMP, [objdump], [no])
 432 AC_CHECK_TOOL(STRIP, [strip], [no])
 433
 434 # ---------  unsigned long long sane? -------
 435 AC_CHECK_SIZEOF(unsigned long long, 0)
 436 AS_IF([test $ac_cv_sizeof_unsigned_long_long != 8],
 437         [AC_MSG_ERROR([we assume that sizeof(unsigned long long) == 8.])])
 438
 439 AS_IF([test $target_cpu = powerpc64], [
 440         AC_MSG_WARN([set compiler with -m64])
 441         CFLAGS="$CFLAGS -m64"
 442         CC="$CC -m64"
 443 ])
 444
 445 CPPFLAGS="-I$PWD/$LIBCFS_INCLUDE_DIR -I$PWD/lnet/include -I$PWD/lustre/include $CPPFLAGS"
 446
 447 LLCPPFLAGS="-D__arch_lib__ -D_LARGEFILE64_SOURCE=1"
 448 AC_SUBST(LLCPPFLAGS)
 449
 450 # Add _GNU_SOURCE for strnlen on linux
 451 LLCFLAGS="-g -Wall -fPIC -D_GNU_SOURCE"
 452 AC_SUBST(LLCFLAGS)
 453
 454 CCASFLAGS="-Wall -fPIC -D_GNU_SOURCE"
 455 AC_SUBST(CCASFLAGS)
 456
 457 # everyone builds against lnet and lustre
 458 EXTRA_KCFLAGS="$EXTRA_KCFLAGS -g -I$PWD/$LIBCFS_INCLUDE_DIR -I$PWD/lnet/include -I$PWD/lustre/include"
 459 AC_SUBST(EXTRA_KCFLAGS)
 460 ]) # LB_PROG_CC
 461
 462 #
 463 # LB_CONDITIONALS
 464 #
 465 # AM_CONDITIONAL instances for everything
 466 # (so that portals/lustre can disable some if needed)
 467 #
 468 AC_DEFUN([LB_CONDITIONALS], [
 469 AM_CONDITIONAL([MODULES], [test x$enable_modules = xyes])
 470 AM_CONDITIONAL([UTILS], [test x$enable_utils = xyes])
 471 AM_CONDITIONAL([TESTS], [test x$enable_tests = xyes])
 472 AM_CONDITIONAL([DOC], [test x$ENABLE_DOC = x1])
 473 AM_CONDITIONAL([INIT_SCRIPTS], [test x$ENABLE_INIT_SCRIPTS = x1])
 474 AM_CONDITIONAL([LINUX], [test x$lb_target_os = xlinux])
 475 AM_CONDITIONAL([DARWIN], [test x$lb_target_os = xdarwin])
 476 AM_CONDITIONAL([SUNOS], [test x$lb_target_os = xSunOS])
 477 AM_CONDITIONAL([USES_DPKG], [test x$uses_dpkg = xyes])
 478 AM_CONDITIONAL([USE_QUILT], [test x$use_quilt = xyes])
 479
 480 # Sanity check for PCLMULQDQ instruction availability
 481 # PCLMULQDQ instruction is a new instruction available beginning with
 482 # the all new Core processor family based on the 32nm microarchitecture
 483 # codename Westmere. So, $target_cpu = x86_64 should have this instruction
 484 # except MIC microarchitecture (k1om).
 485 AM_CONDITIONAL(HAVE_PCLMULQDQ, test x$target_cpu = "xx86_64" -a x$target_vendor != "xk1om")
 486 AS_IF([test x$target_cpu = "xx86_64" -a x$target_vendor != "xk1om"],
 487         [AC_DEFINE(HAVE_PCLMULQDQ, 1, [have PCLMULQDQ instruction])])
 488
 489 # this lets lustre cancel libsysio, per-branch or if liblustre is
 490 # disabled
 491 AS_IF([test "x$LIBSYSIO_SUBDIR" = xlibsysio], [
 492         AS_IF([test "x$with_sysio" != xyes], [
 493                 SYSIO=""
 494                 LIBSYSIO_SUBDIR=""
 495         ])
 496 ])
 497 AC_SUBST(LIBSYSIO_SUBDIR)
 498 AC_SUBST(SYSIO)
 499
 500 LB_DARWIN_CONDITIONALS
 501
 502 LIBCFS_CONDITIONALS
 503 LN_CONDITIONALS
 504 LC_CONDITIONALS
 505 ]) # LB_CONTITIONALS
 506
 507 #
 508 # LB_CONFIG_FILES
 509 #
 510 # build-specific config files
 511 #
 512 AC_DEFUN([LB_CONFIG_FILES], [
 513         AC_CONFIG_FILES([
 514                 Makefile
 515                 autoMakefile]
 516                 config/Makefile
 517                 [Rules:build/Rules.in]
 518                 AC_PACKAGE_TARNAME[.spec]
 519                 AC_PACKAGE_TARNAME[-dkms.spec]
 520                 contrib/Makefile
 521                 contrib/lbuild/Makefile
 522                 contrib/scripts/Makefile
 523                 ldiskfs/Makefile
 524                 ldiskfs/autoMakefile
 525                 lustre-iokit/Makefile
 526                 lustre-iokit/obdfilter-survey/Makefile
 527                 lustre-iokit/ost-survey/Makefile
 528                 lustre-iokit/sgpdd-survey/Makefile
 529                 lustre-iokit/mds-survey/Makefile
 530                 lustre-iokit/ior-survey/Makefile
 531                 lustre-iokit/stats-collect/Makefile
 532         )
 533 ])
 534
 535 #
 536 # LB_CONFIG_SERVERS
 537 #
 538 AC_DEFUN([LB_CONFIG_SERVERS], [
 539 AC_ARG_ENABLE([server],
 540         AC_HELP_STRING([--disable-server],
 541                         [disable Lustre server support]), [
 542                 AS_IF([test x$enable_server != xyes -a x$enable_server != xno],
 543                         [AC_MSG_ERROR([server valid options are "yes" or "no"])])
 544                 AS_IF([test x$enable_server = xyes -a x$enable_dist = xyes],
 545                         [AC_MSG_ERROR([--enable-server cannot be used with --enable-dist])])
 546         ], [
 547                 AS_IF([test x$enable_dist = xyes],
 548                         [enable_server=no], [enable_server=maybe])
 549         ])
 550
 551 # There are at least two good reasons why we should really run
 552 # LB_CONFIG_MODULES elsewhere before the call to LB_CONFIG_SERVERS:
 553 # LB_CONFIG_MODULES needs to be run for client support even when
 554 # servers are disabled, and because module support is actually a
 555 # prerequisite of server support.  However, some things under
 556 # LB_CONFIG_MODULES need us to already have checked for --disable-server,
 557 # before running, so until LB_CONFIG_MODULES can be reorganized, we
 558 # call it here.
 559 LB_CONFIG_MODULES
 560 AS_IF([test x$enable_modules = xno], [enable_server=no])
 561 LB_CONFIG_LDISKFS
 562 LB_CONFIG_ZFS
 563
 564 # If no backends were configured, and the user did not explicitly
 565 # require servers to be enabled, we just disable servers.
 566 AS_IF([test x$enable_ldiskfs = xno -a x$enable_zfs = xno], [
 567         AS_CASE([$enable_server],
 568                 [maybe], [enable_server=no],
 569                 [yes], [AC_MSG_ERROR([cannot enable servers, no backends were configured])])
 570         ], [
 571                 AS_IF([test x$enable_server = xmaybe], [enable_server=yes])
 572         ])
 573
 574 AC_MSG_CHECKING([whether to build Lustre server support])
 575 AC_MSG_RESULT([$enable_server])
 576 AS_IF([test x$enable_server = xyes],
 577         [AC_DEFINE(HAVE_SERVER_SUPPORT, 1, [support server])])
 578 ]) # LB_CONFIG_SERVERS
 579
 580 #
 581 # LB_CONFIG_RPMBUILD_OPTIONS
 582 #
 583 # The purpose of this function is to assemble command line options
 584 # for the rpmbuild command based on the options passed to the configure
 585 # script, and also upon the descisions that configure makes based on
 586 # the tests that it runs.
 587 # These strings can be passed to rpmbuild on the command line
 588 # in the Make targets named "rpms" and "srpm".
 589 #
 590 AC_DEFUN([LB_CONFIG_RPMBUILD_OPTIONS], [
 591 RPMBINARGS=
 592 RPMSRCARGS=
 593 CONFIGURE_ARGS=
 594 eval set -- $ac_configure_args
 595 for arg; do
 596         case $arg in
 597                 --with-release=* ) ;;
 598                 --with-kmp-moddir=* ) ;;
 599                 --with-linux=* | --with-linux-obj=* ) ;;
 600                 --enable-tests | --disable-tests ) ;;
 601                 --enable-modules | --disable-modules ) ;;
 602                 * ) CONFIGURE_ARGS="$CONFIGURE_ARGS '$arg'" ;;
 603         esac
 604 done
 605 if test -n "$CONFIGURE_ARGS" ; then
 606         RPMBINARGS="$RPMBINARGS --define \"configure_args $CONFIGURE_ARGS\""
 607 fi
 608 if test -n "$LINUX" ; then
 609         RPMBINARGS="$RPMBINARGS --define \"kdir $LINUX\""
 610         if test -n "$LINUX_OBJ" -a "$LINUX_OBJ" != x"$LINUX" ; then
 611                 RPMBINARGS="$RPMBINARGS --define \"kobjdir $LINUX_OBJ\""
 612         fi
 613 fi
 614 if test -n "$KMP_MODDIR" ; then
 615         RPMBINARGS="$RPMBINARGS --define \"kmoddir $KMP_MODDIR\""
 616 fi
 617 if test -n "$CROSS_PATH" ; then
 618         if test x$enable_server = xyes ; then
 619                 echo -e "\n"
 620                 "*** Don't support cross compilation for the Intel(R) Xeon Phi(TM) card.\n"
 621                 exit 1
 622         fi
 623         CROSS_SUFFIX="-mic"
 624         RPMBINARGS="$RPMBINARGS --define \"post_script build/gen_filelist.sh\""
 625         RPMBINARGS="$RPMBINARGS --define \"cross_path $CROSS_PATH\""
 626         RPMBINARGS="$RPMBINARGS --define \"rootdir %{cross_path}\""
 627         RPMBINARGS="$RPMBINARGS --define \"_prefix %{cross_path}/usr\""
 628         RPMBINARGS="$RPMBINARGS --define \"_mandir %{_prefix}/share/man\""
 629         RPMBINARGS="$RPMBINARGS --define \"_sysconfdir %{cross_path}/etc\""
 630         RPMBINARGS="$RPMBINARGS --define \"make_args $CROSS_VARS\""
 631         if test x$CC_TARGET_ARCH = x"x86_64-k1om-linux" ; then
 632                 RPMBINARGS="$RPMBINARGS --define \"cross_requires intel-mic-gpl\""
 633         fi
 634 fi
 635 if test x$enable_modules != xyes ; then
 636         RPMBINARGS="$RPMBINARGS --without lustre_modules"
 637 fi
 638 if test x$enable_tests != xyes ; then
 639         RPMBINARGS="$RPMBINARGS --without lustre_tests"
 640         RPMSRCARGS="$RPMSRCARGS --without lustre_tests"
 641 fi
 642 if test x$enable_server != xyes ; then
 643         RPMBINARGS="$RPMBINARGS --without servers"
 644         if test -n "$CROSS_SUFFIX" ; then
 645                 RPMBINARGS="$RPMBINARGS --define \"lustre_name lustre-client$CROSS_SUFFIX\""
 646         fi
 647 fi
 648 if test x$enable_ldiskfs != xyes ; then
 649         RPMBINARGS="$RPMBINARGS --without ldiskfs"
 650 fi
 651 if test x$enable_zfs = xyes ; then
 652         RPMBINARGS="$RPMBINARGS --with zfs"
 653 fi
 654 if test x$enable_iokit != xyes ; then
 655         RPMBINARGS="$RPMBINARGS --without lustre_iokit"
 656         RPMSRCARGS="$RPMSRCARGS --without lustre_iokit"
 657 fi
 658
 659 RPMBUILD_BINARY_ARGS=$RPMBINARGS
 660 RPMBUILD_SOURCE_ARGS=$RPMSRCARGS
 661
 662 AC_SUBST(RPMBUILD_BINARY_ARGS)
 663 AC_SUBST(RPMBUILD_SOURCE_ARGS)
 664 ]) # LB_CONFIG_RPMBUILD_OPTIONS
 665
 666 #
 667 # LB_CONFIGURE
 668 #
 669 # main configure steps
 670 #
 671 AC_DEFUN([LB_CONFIGURE], [
 672 AC_MSG_NOTICE([Lustre base checks
 673 ==============================================================================])
 674 LB_CANONICAL_SYSTEM
 675
 676 LB_CONFIG_DIST
 677
 678 LB_DOWNSTREAM_RELEASE
 679 LB_USES_DPKG
 680 LB_BUILDID
 681
 682 LB_LIBCFS_DIR
 683
 684 LB_INCLUDE_RULES
 685
 686 LB_PATH_DEFAULTS
 687
 688 LB_PROG_CC
 689
 690 LC_OSD_ADDON
 691
 692 LB_CONFIG_DOCS
 693 LB_CONFIG_UTILS
 694 LB_CONFIG_TESTS
 695 LC_CONFIG_CLIENT
 696 LB_CONFIG_SERVERS
 697
 698 # two macros for cmd3
 699 m4_ifdef([LC_CONFIG_SPLIT], [LC_CONFIG_SPLIT])
 700 m4_ifdef([LC_NODEMAP_PROC_DEBUG], [LC_NODEMAP_PROC_DEBUG])
 701 LN_CONFIG_CDEBUG
 702 LC_QUOTA
 703
 704 LN_CONFIG_USERSPACE
 705
 706 LB_PATH_LIBSYSIO
 707 LB_PATH_SNMP
 708 LB_PATH_LUSTREIOKIT
 709
 710 LB_DEFINE_E2FSPROGS_NAMES
 711
 712 LC_CONFIG_LIBLUSTRE
 713 LIBCFS_CONFIGURE
 714 LN_CONFIGURE
 715 LC_CONFIGURE
 716 AS_IF([test -n "$SNMP_DIST_SUBDIR"], [LS_CONFIGURE])
 717
 718 LB_CONDITIONALS
 719 LB_CONFIG_HEADERS
 720
 721 LIBCFS_CONFIG_FILES
 722 LB_CONFIG_FILES
 723 LN_CONFIG_FILES
 724 LC_CONFIG_FILES
 725 AS_IF([test -n "$SNMP_DIST_SUBDIR"], [LS_CONFIG_FILES])
 726
 727 AC_SUBST(ac_configure_args)
 728
 729 MOSTLYCLEANFILES='.*.cmd .*.flags *.o *.ko *.mod.c .depend .*.1.* Modules.symvers Module.symvers'
 730 AC_SUBST(MOSTLYCLEANFILES)
 731
 732 LB_CONFIG_RPMBUILD_OPTIONS
 733
 734 AC_OUTPUT
 735
 736 cat <<_ACEOF
 737
 738 CC:            $CC
 739 LD:            $LD
 740 CPPFLAGS:      $CPPFLAGS
 741 LLCPPFLAGS:    $LLCPPFLAGS
 742 CFLAGS:        $CFLAGS
 743 EXTRA_KCFLAGS: $EXTRA_KCFLAGS
 744 LLCFLAGS:      $LLCFLAGS
 745
 746 Type 'make' to build Lustre.
 747 _ACEOF
 748 ]) # LB_CONFIGURE