lustre/autoconf/lustre-core.m4

   1 #* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
   2 #
   3 # LC_CONFIG_SRCDIR
   4 #
   5 # Wrapper for AC_CONFIG_SUBDIR
   6 #
   7 AC_DEFUN([LC_CONFIG_SRCDIR],
   8 [AC_CONFIG_SRCDIR([lustre/obdclass/obdo.c])
   9 ])
  10
  11 #
  12 # LC_PATH_DEFAULTS
  13 #
  14 # lustre specific paths
  15 #
  16 AC_DEFUN([LC_PATH_DEFAULTS],
  17 [# ptlrpc kernel build requires this
  18 LUSTRE="$PWD/lustre"
  19 AC_SUBST(LUSTRE)
  20
  21 # mount.lustre
  22 rootsbindir='/sbin'
  23 AC_SUBST(rootsbindir)
  24
  25 demodir='$(docdir)/demo'
  26 AC_SUBST(demodir)
  27
  28 pkgexampledir='${pkgdatadir}/examples'
  29 AC_SUBST(pkgexampledir)
  30 ])
  31
  32 #
  33 # LC_TARGET_SUPPORTED
  34 #
  35 # is the target os supported?
  36 #
  37 AC_DEFUN([LC_TARGET_SUPPORTED],
  38 [case $target_os in
  39         linux* | darwin*)
  40 $1
  41                 ;;
  42         *)
  43 $2
  44                 ;;
  45 esac
  46 ])
  47
  48 #
  49 # LC_CONFIG_EXT3
  50 #
  51 # that ext3 is enabled in the kernel
  52 #
  53 AC_DEFUN([LC_CONFIG_EXT3],
  54 [LB_LINUX_CONFIG([EXT3_FS],[],[
  55         LB_LINUX_CONFIG([EXT3_FS_MODULE],[],[$2])
  56 ])
  57 LB_LINUX_CONFIG([EXT3_FS_XATTR],[$1],[$3])
  58 ])
  59
  60 #
  61 # LC_FSHOOKS
  62 #
  63 # If we have (and can build) fshooks.h
  64 #
  65 AC_DEFUN([LC_FSHOOKS],
  66 [LB_CHECK_FILE([$LINUX/include/linux/fshooks.h],[
  67         AC_MSG_CHECKING([if fshooks.h can be compiled])
  68         LB_LINUX_TRY_COMPILE([
  69                 #include <linux/fshooks.h>
  70         ],[],[
  71                 AC_MSG_RESULT([yes])
  72         ],[
  73                 AC_MSG_RESULT([no])
  74                 AC_MSG_WARN([You might have better luck with gcc 3.3.x.])
  75                 AC_MSG_WARN([You can set CC=gcc33 before running configure.])
  76                 AC_MSG_ERROR([Your compiler cannot build fshooks.h.])
  77         ])
  78 $1
  79 ],[
  80 $2
  81 ])
  82 ])
  83
  84 #
  85 # LC_STRUCT_KIOBUF
  86 #
  87 # rh 2.4.18 has iobuf->dovary, but other kernels do not
  88 #
  89 AC_DEFUN([LC_STRUCT_KIOBUF],
  90 [AC_MSG_CHECKING([if struct kiobuf has a dovary field])
  91 LB_LINUX_TRY_COMPILE([
  92         #include <linux/iobuf.h>
  93 ],[
  94         struct kiobuf iobuf;
  95         iobuf.dovary = 1;
  96 ],[
  97         AC_MSG_RESULT([yes])
  98         AC_DEFINE(HAVE_KIOBUF_DOVARY, 1, [struct kiobuf has a dovary field])
  99 ],[
 100         AC_MSG_RESULT([no])
 101 ])
 102 ])
 103
 104 #
 105 # LC_FUNC_COND_RESCHED
 106 #
 107 # cond_resched() was introduced in 2.4.20
 108 #
 109 AC_DEFUN([LC_FUNC_COND_RESCHED],
 110 [AC_MSG_CHECKING([if kernel offers cond_resched])
 111 LB_LINUX_TRY_COMPILE([
 112         #include <linux/sched.h>
 113 ],[
 114         cond_resched();
 115 ],[
 116         AC_MSG_RESULT([yes])
 117         AC_DEFINE(HAVE_COND_RESCHED, 1, [cond_resched found])
 118 ],[
 119         AC_MSG_RESULT([no])
 120 ])
 121 ])
 122
 123 #
 124 # LC_FUNC_ZAP_PAGE_RANGE
 125 #
 126 # if zap_page_range() takes a vma arg
 127 #
 128 AC_DEFUN([LC_FUNC_ZAP_PAGE_RANGE],
 129 [AC_MSG_CHECKING([if zap_page_range with vma parameter])
 130 ZAP_PAGE_RANGE_VMA="`grep -c 'zap_page_range.*struct vm_area_struct' $LINUX/include/linux/mm.h`"
 131 if test "$ZAP_PAGE_RANGE_VMA" != 0 ; then
 132         AC_DEFINE(ZAP_PAGE_RANGE_VMA, 1, [zap_page_range with vma parameter])
 133         AC_MSG_RESULT([yes])
 134 else
 135         AC_MSG_RESULT([no])
 136 fi
 137 ])
 138
 139 #
 140 # LC_FUNC_PDE
 141 #
 142 # if proc_fs.h defines PDE()
 143 #
 144 AC_DEFUN([LC_FUNC_PDE],
 145 [AC_MSG_CHECKING([if kernel defines PDE])
 146 HAVE_PDE="`grep -c 'proc_dir_entry..PDE' $LINUX/include/linux/proc_fs.h`"
 147 if test "$HAVE_PDE" != 0 ; then
 148         AC_DEFINE(HAVE_PDE, 1, [the kernel defines PDE])
 149         AC_MSG_RESULT([yes])
 150 else
 151         AC_MSG_RESULT([no])
 152 fi
 153 ])
 154
 155 #
 156 # LC_FUNC_FILEMAP_FDATASYNC
 157 #
 158 # if filemap_fdatasync() exists
 159 #
 160 AC_DEFUN([LC_FUNC_FILEMAP_FDATAWRITE],
 161 [AC_MSG_CHECKING([whether filemap_fdatawrite() is defined])
 162 LB_LINUX_TRY_COMPILE([
 163         #include <linux/fs.h>
 164 ],[
 165         int (*foo)(struct address_space *)= filemap_fdatawrite;
 166 ],[
 167         AC_MSG_RESULT([yes])
 168         AC_DEFINE(HAVE_FILEMAP_FDATAWRITE, 1, [filemap_fdatawrite() found])
 169 ],[
 170         AC_MSG_RESULT([no])
 171 ])
 172 ])
 173
 174 #
 175 # LC_FUNC_DIRECT_IO
 176 #
 177 # if direct_IO takes a struct file argument
 178 #
 179 AC_DEFUN([LC_FUNC_DIRECT_IO],
 180 [AC_MSG_CHECKING([if kernel passes struct file to direct_IO])
 181 HAVE_DIO_FILE="`grep -c 'direct_IO.*struct file' $LINUX/include/linux/fs.h`"
 182 if test "$HAVE_DIO_FILE" != 0 ; then
 183         AC_DEFINE(HAVE_DIO_FILE, 1, [the kernel passes struct file to direct_IO])
 184         AC_MSG_RESULT(yes)
 185 else
 186         AC_MSG_RESULT(no)
 187 fi
 188 ])
 189
 190 #
 191 # LC_HEADER_MM_INLINE
 192 #
 193 # RHEL kernels define page_count in mm_inline.h
 194 #
 195 AC_DEFUN([LC_HEADER_MM_INLINE],
 196 [AC_MSG_CHECKING([if kernel has mm_inline.h header])
 197 LB_LINUX_TRY_COMPILE([
 198         #include <linux/mm_inline.h>
 199 ],[
 200         #ifndef page_count
 201         #error mm_inline.h does not define page_count
 202         #endif
 203 ],[
 204         AC_MSG_RESULT([yes])
 205         AC_DEFINE(HAVE_MM_INLINE, 1, [mm_inline found])
 206 ],[
 207         AC_MSG_RESULT([no])
 208 ])
 209 ])
 210
 211 #
 212 # LC_STRUCT_INODE
 213 #
 214 # if inode->i_alloc_sem exists
 215 #
 216 AC_DEFUN([LC_STRUCT_INODE],
 217 [AC_MSG_CHECKING([if struct inode has i_alloc_sem])
 218 LB_LINUX_TRY_COMPILE([
 219         #include <linux/fs.h>
 220         #include <linux/version.h>
 221 ],[
 222         #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,4,24))
 223         #error "down_read_trylock broken before 2.4.24"
 224         #endif
 225         struct inode i;
 226         return (char *)&i.i_alloc_sem - (char *)&i;
 227 ],[
 228         AC_MSG_RESULT([yes])
 229         AC_DEFINE(HAVE_I_ALLOC_SEM, 1, [struct inode has i_alloc_sem])
 230 ],[
 231         AC_MSG_RESULT([no])
 232 ])
 233 ])
 234
 235 #
 236 # LC_FUNC_REGISTER_CACHE
 237 #
 238 # if register_cache() is defined by kernel
 239 #
 240 AC_DEFUN([LC_FUNC_REGISTER_CACHE],
 241 [AC_MSG_CHECKING([if kernel defines register_cache()])
 242 LB_LINUX_TRY_COMPILE([
 243         #include <linux/list.h>
 244         #include <linux/cache_def.h>
 245 ],[
 246         struct cache_definition cache;
 247 ],[
 248         AC_MSG_RESULT([yes])
 249         AC_DEFINE(HAVE_REGISTER_CACHE, 1, [register_cache found])
 250         AC_MSG_CHECKING([if kernel expects return from cache shrink function])
 251         HAVE_CACHE_RETURN_INT="`grep -c 'int.*shrink' $LINUX/include/linux/cache_def.h`"
 252         if test "$HAVE_CACHE_RETURN_INT" != 0 ; then
 253                 AC_DEFINE(HAVE_CACHE_RETURN_INT, 1, [kernel expects return from shrink_cache])
 254                 AC_MSG_RESULT(yes)
 255         else
 256                 AC_MSG_RESULT(no)
 257         fi
 258 ],[
 259         AC_MSG_RESULT([no])
 260 ])
 261 ])
 262
 263 #
 264 # LC_FUNC_GRAB_CACHE_PAGE_NOWAIT_GFP
 265 #
 266 # check for our patched grab_cache_page_nowait_gfp() function
 267 #
 268 AC_DEFUN([LC_FUNC_GRAB_CACHE_PAGE_NOWAIT_GFP],
 269 [AC_MSG_CHECKING([if kernel defines grab_cache_page_nowait_gfp()])
 270 HAVE_GCPN_GFP="`grep -c 'grab_cache_page_nowait_gfp' $LINUX/include/linux/pagemap.h`"
 271 if test "$HAVE_GCPN_GFP" != 0 ; then
 272         AC_DEFINE(HAVE_GRAB_CACHE_PAGE_NOWAIT_GFP, 1,
 273                 [kernel has grab_cache_page_nowait_gfp()])
 274         AC_MSG_RESULT(yes)
 275 else
 276         AC_MSG_RESULT(no)
 277 fi
 278 ])
 279
 280 #
 281 # LC_FUNC_DEV_SET_RDONLY
 282 #
 283 # check for the old-style dev_set_rdonly which took an extra "devno" param
 284 # and can only set a single device to discard writes at one time
 285 #
 286 AC_DEFUN([LC_FUNC_DEV_SET_RDONLY],
 287 [AC_MSG_CHECKING([if kernel has new dev_set_rdonly])
 288 LB_LINUX_TRY_COMPILE([
 289         #include <linux/fs.h>
 290 ],[
 291         #ifndef HAVE_CLEAR_RDONLY_ON_PUT
 292         #error needs to be patched by lustre kernel patches from Lustre version 1.4.3 or above.
 293         #endif
 294 ],[
 295         AC_MSG_RESULT([yes])
 296         AC_DEFINE(HAVE_DEV_SET_RDONLY, 1, [kernel has new dev_set_rdonly])
 297 ],[
 298         AC_MSG_RESULT([no, Linux kernel source needs to be patches by lustre
 299 kernel patches from Lustre version 1.4.3 or above.])
 300 ])
 301 ])
 302
 303 #
 304 # LC_CONFIG_BACKINGFS
 305 #
 306 # whether to use ldiskfs instead of ext3
 307 #
 308 AC_DEFUN([LC_CONFIG_BACKINGFS],
 309 [
 310 BACKINGFS='ext3'
 311
 312 # 2.6 gets ldiskfs
 313 AC_MSG_CHECKING([whether to enable ldiskfs])
 314 AC_ARG_ENABLE([ldiskfs],
 315         AC_HELP_STRING([--enable-ldiskfs],
 316                         [use ldiskfs for the Lustre backing FS]),
 317         [],[enable_ldiskfs="$linux25"])
 318 AC_MSG_RESULT([$enable_ldiskfs])
 319
 320 if test x$enable_ldiskfs = xyes ; then
 321         BACKINGFS="ldiskfs"
 322
 323         AC_MSG_CHECKING([whether to enable quilt for making ldiskfs])
 324         AC_ARG_ENABLE([quilt],
 325                         AC_HELP_STRING([--disable-quilt],[disable use of quilt for ldiskfs]),
 326                         [],[enable_quilt='yes'])
 327         AC_MSG_RESULT([$enable_quilt])
 328
 329         AC_PATH_PROG(PATCH, patch, [no])
 330
 331         if test x$enable_quilt = xno ; then
 332             QUILT="no"
 333         else
 334             AC_PATH_PROG(QUILT, quilt, [no])
 335         fi
 336
 337         if test x$enable_ldiskfs$PATCH$QUILT = xyesnono ; then
 338                 AC_MSG_ERROR([Quilt or patch are needed to build the ldiskfs module (for Linux 2.6)])
 339         fi
 340
 341         AC_DEFINE(CONFIG_LDISKFS_FS_MODULE, 1, [build ldiskfs as a module])
 342         AC_DEFINE(CONFIG_LDISKFS_FS_XATTR, 1, [enable extended attributes for ldiskfs])
 343         AC_DEFINE(CONFIG_LDISKFS_FS_POSIX_ACL, 1, [enable posix acls for ldiskfs])
 344         AC_DEFINE(CONFIG_LDISKFS_FS_SECURITY, 1, [enable fs security for ldiskfs])
 345
 346         AC_DEFINE(CONFIG_LDISKFS2_FS_XATTR, 1, [enable extended attributes for ldiskfs2])
 347         AC_DEFINE(CONFIG_LDISKFS2_FS_POSIX_ACL, 1, [enable posix acls for ldiskfs2])
 348         AC_DEFINE(CONFIG_LDISKFS2_FS_SECURITY, 1, [enable fs security for ldiskfs2])
 349 fi
 350
 351 AC_MSG_CHECKING([which backing filesystem to use])
 352 AC_MSG_RESULT([$BACKINGFS])
 353 AC_SUBST(BACKINGFS)
 354
 355 case $BACKINGFS in
 356         ext3)
 357                 # --- Check that ext3 and ext3 xattr are enabled in the kernel
 358                 LC_CONFIG_EXT3([],[
 359                         AC_MSG_ERROR([Lustre requires that ext3 is enabled in the kernel])
 360                 ],[
 361                         AC_MSG_WARN([Lustre requires that extended attributes for ext3 are enabled in the kernel])
 362                         AC_MSG_WARN([This build may fail.])
 363                 ])
 364                 ;;
 365         ldiskfs)
 366                 AC_MSG_CHECKING([which ldiskfs series to use])
 367                 case $LINUXRELEASE in
 368                 2.6.5*) LDISKFS_SERIES="2.6-suse.series" ;;
 369                 2.6.9*) LDISKFS_SERIES="2.6-rhel4.series" ;;
 370                 2.6.10-ac*) LDISKFS_SERIES="2.6-fc3.series" ;;
 371                 2.6.10*) LDISKFS_SERIES="2.6-rhel4.series" ;;
 372                 2.6.12*) LDISKFS_SERIES="2.6.12-vanilla.series" ;;
 373                 2.6.15*) LDISKFS_SERIES="2.6-fc5.series";;
 374                 2.6.16*) LDISKFS_SERIES="2.6-sles10.series";;
 375                 2.6.18*) LDISKFS_SERIES="2.6.18-vanilla.series";;
 376                 *) AC_MSG_WARN([Unknown kernel version $LINUXRELEASE, fix lustre/autoconf/lustre-core.m4])
 377                 esac
 378                 AC_MSG_RESULT([$LDISKFS_SERIES])
 379                 AC_SUBST(LDISKFS_SERIES)
 380                 ;;
 381 esac # $BACKINGFS
 382 ])
 383
 384 #
 385 # LC_CONFIG_PINGER
 386 #
 387 # the pinger is temporary, until we have the recovery node in place
 388 #
 389 AC_DEFUN([LC_CONFIG_PINGER],
 390 [AC_MSG_CHECKING([whether to enable pinger support])
 391 AC_ARG_ENABLE([pinger],
 392         AC_HELP_STRING([--disable-pinger],
 393                         [disable recovery pinger support]),
 394         [],[enable_pinger='yes'])
 395 AC_MSG_RESULT([$enable_pinger])
 396 if test x$enable_pinger != xno ; then
 397   AC_DEFINE(ENABLE_PINGER, 1, Use the Pinger)
 398 fi
 399 ])
 400
 401 #
 402 # LC_CONFIG_HEALTH_CHECK_WRITE
 403 #
 404 # Turn on the actual write to the disk
 405 #
 406 AC_DEFUN([LC_CONFIG_HEALTH_CHECK_WRITE],
 407 [AC_MSG_CHECKING([whether to enable a write with the health check])
 408 AC_ARG_ENABLE([health-write],
 409         AC_HELP_STRING([--enable-health-write],
 410                         [enable disk writes when doing health check]),
 411         [],[enable_health_write='no'])
 412 AC_MSG_RESULT([$enable_health_write])
 413 if test x$enable_health_write == xyes ; then
 414   AC_DEFINE(USE_HEALTH_CHECK_WRITE, 1, Write when Checking Health)
 415 fi
 416 ])
 417
 418 #
 419 # LC_CONFIG_LIBLUSTRE_RECOVERY
 420 #
 421 AC_DEFUN([LC_CONFIG_LIBLUSTRE_RECOVERY],
 422 [AC_MSG_CHECKING([whether to enable liblustre recovery support])
 423 AC_ARG_ENABLE([liblustre-recovery],
 424         AC_HELP_STRING([--disable-liblustre-recovery],
 425                         [disable liblustre recovery support]),
 426         [],[enable_liblustre_recovery='yes'])
 427 AC_MSG_RESULT([$enable_liblustre_recovery])
 428 if test x$enable_liblustre_recovery != xno ; then
 429   AC_DEFINE(ENABLE_LIBLUSTRE_RECOVERY, 1, Liblustre Can Recover)
 430 fi
 431 ])
 432
 433 #
 434 # LC_CONFIG_OBD_BUFFER_SIZE
 435 #
 436 # the maximum buffer size of lctl ioctls
 437 #
 438 AC_DEFUN([LC_CONFIG_OBD_BUFFER_SIZE],
 439 [AC_MSG_CHECKING([maximum OBD ioctl size])
 440 AC_ARG_WITH([obd-buffer-size],
 441         AC_HELP_STRING([--with-obd-buffer-size=[size]],
 442                         [set lctl ioctl maximum bytes (default=8192)]),
 443         [
 444                 OBD_BUFFER_SIZE=$with_obd_buffer_size
 445         ],[
 446                 OBD_BUFFER_SIZE=8192
 447         ])
 448 AC_MSG_RESULT([$OBD_BUFFER_SIZE bytes])
 449 AC_DEFINE_UNQUOTED(OBD_MAX_IOCTL_BUFFER, $OBD_BUFFER_SIZE, [IOCTL Buffer Size])
 450 ])
 451
 452 #
 453 # LC_STRUCT_STATFS
 454 #
 455 # AIX does not have statfs.f_namelen
 456 #
 457 AC_DEFUN([LC_STRUCT_STATFS],
 458 [AC_MSG_CHECKING([if struct statfs has a f_namelen field])
 459 LB_LINUX_TRY_COMPILE([
 460         #include <linux/vfs.h>
 461 ],[
 462         struct statfs sfs;
 463         sfs.f_namelen = 1;
 464 ],[
 465         AC_MSG_RESULT([yes])
 466         AC_DEFINE(HAVE_STATFS_NAMELEN, 1, [struct statfs has a namelen field])
 467 ],[
 468         AC_MSG_RESULT([no])
 469 ])
 470 ])
 471
 472 #
 473 # LC_READLINK_SSIZE_T
 474 #
 475 AC_DEFUN([LC_READLINK_SSIZE_T],
 476 [AC_MSG_CHECKING([if readlink returns ssize_t])
 477 AC_TRY_COMPILE([
 478         #include <unistd.h>
 479 ],[
 480         ssize_t readlink(const char *, char *, size_t);
 481 ],[
 482         AC_MSG_RESULT([yes])
 483         AC_DEFINE(HAVE_POSIX_1003_READLINK, 1, [readlink returns ssize_t])
 484 ],[
 485         AC_MSG_RESULT([no])
 486 ])
 487 ])
 488
 489 AC_DEFUN([LC_FUNC_PAGE_MAPPED],
 490 [AC_MSG_CHECKING([if kernel offers page_mapped])
 491 LB_LINUX_TRY_COMPILE([
 492         #include <linux/mm.h>
 493 ],[
 494         page_mapped(NULL);
 495 ],[
 496         AC_MSG_RESULT([yes])
 497         AC_DEFINE(HAVE_PAGE_MAPPED, 1, [page_mapped found])
 498 ],[
 499         AC_MSG_RESULT([no])
 500 ])
 501 ])
 502
 503 AC_DEFUN([LC_STRUCT_FILE_OPS_UNLOCKED_IOCTL],
 504 [AC_MSG_CHECKING([if struct file_operations has an unlocked_ioctl field])
 505 LB_LINUX_TRY_COMPILE([
 506         #include <linux/fs.h>
 507 ],[
 508         struct file_operations fops;
 509         &fops.unlocked_ioctl;
 510 ],[
 511         AC_MSG_RESULT([yes])
 512         AC_DEFINE(HAVE_UNLOCKED_IOCTL, 1, [struct file_operations has an unlock ed_ioctl field])
 513 ],[
 514         AC_MSG_RESULT([no])
 515 ])
 516 ])
 517
 518 AC_DEFUN([LC_FILEMAP_POPULATE],
 519 [AC_MSG_CHECKING([for exported filemap_populate])
 520 LB_LINUX_TRY_COMPILE([
 521         #include <asm/page.h>
 522         #include <linux/mm.h>
 523 ],[
 524         filemap_populate(NULL, 0, 0, __pgprot(0), 0, 0);
 525 ],[
 526         AC_MSG_RESULT([yes])
 527         AC_DEFINE(HAVE_FILEMAP_POPULATE, 1, [Kernel exports filemap_populate])
 528 ],[
 529         AC_MSG_RESULT([no])
 530 ])
 531 ])
 532
 533 AC_DEFUN([LC_D_ADD_UNIQUE],
 534 [AC_MSG_CHECKING([for d_add_unique])
 535 LB_LINUX_TRY_COMPILE([
 536         #include <linux/dcache.h>
 537 ],[
 538        d_add_unique(NULL, NULL);
 539 ],[
 540         AC_MSG_RESULT([yes])
 541         AC_DEFINE(HAVE_D_ADD_UNIQUE, 1, [Kernel has d_add_unique])
 542 ],[
 543         AC_MSG_RESULT([no])
 544 ])
 545 ])
 546
 547 AC_DEFUN([LC_BIT_SPINLOCK_H],
 548 [LB_CHECK_FILE([$LINUX/include/linux/bit_spinlock.h],[
 549         AC_MSG_CHECKING([if bit_spinlock.h can be compiled])
 550         LB_LINUX_TRY_COMPILE([
 551                 #include <asm/processor.h>
 552                 #include <linux/spinlock.h>
 553                 #include <linux/bit_spinlock.h>
 554         ],[],[
 555                 AC_MSG_RESULT([yes])
 556                 AC_DEFINE(HAVE_BIT_SPINLOCK_H, 1, [Kernel has bit_spinlock.h])
 557         ],[
 558                 AC_MSG_RESULT([no])
 559         ])
 560 ],
 561 [])
 562 ])
 563
 564 #
 565 # LC_POSIX_ACL_XATTR
 566 #
 567 # If we have xattr_acl.h
 568 #
 569 AC_DEFUN([LC_XATTR_ACL],
 570 [LB_CHECK_FILE([$LINUX/include/linux/xattr_acl.h],[
 571         AC_MSG_CHECKING([if xattr_acl.h can be compiled])
 572         LB_LINUX_TRY_COMPILE([
 573                 #include <linux/xattr_acl.h>
 574         ],[],[
 575                 AC_MSG_RESULT([yes])
 576                 AC_DEFINE(HAVE_XATTR_ACL, 1, [Kernel has xattr_acl])
 577         ],[
 578                 AC_MSG_RESULT([no])
 579         ])
 580 ],
 581 [])
 582 ])
 583
 584 AC_DEFUN([LC_STRUCT_INTENT_FILE],
 585 [AC_MSG_CHECKING([if struct open_intent has a file field])
 586 LB_LINUX_TRY_COMPILE([
 587         #include <linux/fs.h>
 588         #include <linux/namei.h>
 589 ],[
 590         struct open_intent intent;
 591         &intent.file;
 592 ],[
 593         AC_MSG_RESULT([yes])
 594         AC_DEFINE(HAVE_FILE_IN_STRUCT_INTENT, 1, [struct open_intent has a file field])
 595 ],[
 596         AC_MSG_RESULT([no])
 597 ])
 598 ])
 599
 600
 601 AC_DEFUN([LC_POSIX_ACL_XATTR_H],
 602 [LB_CHECK_FILE([$LINUX/include/linux/posix_acl_xattr.h],[
 603         AC_MSG_CHECKING([if linux/posix_acl_xattr.h can be compiled])
 604         LB_LINUX_TRY_COMPILE([
 605                 #include <linux/posix_acl_xattr.h>
 606         ],[],[
 607                 AC_MSG_RESULT([yes])
 608                 AC_DEFINE(HAVE_LINUX_POSIX_ACL_XATTR_H, 1, [linux/posix_acl_xattr.h found])
 609
 610         ],[
 611                 AC_MSG_RESULT([no])
 612         ])
 613 $1
 614 ],[
 615 AC_MSG_RESULT([no])
 616 ])
 617
 618 #
 619 # LC_EXPORT___IGET
 620 # starting from 2.6.19 linux kernel exports __iget()
 621 #
 622 AC_DEFUN([LC_EXPORT___IGET],
 623 [AC_MSG_CHECKING([if kernel exports __iget])
 624         if grep -q "EXPORT_SYMBOL(__iget)" $LINUX/fs/inode.c 2>/dev/null ; then
 625                 AC_DEFINE(HAVE_EXPORT___IGET, 1, [kernel exports __iget])
 626                 AC_MSG_RESULT([yes])
 627         else
 628                 AC_MSG_RESULT([no])
 629         fi
 630 ])
 631 ])
 632
 633 AC_DEFUN([LC_LUSTRE_VERSION_H],
 634 [LB_CHECK_FILE([$LINUX/include/linux/lustre_version.h],[
 635         rm -f "$LUSTRE/include/linux/lustre_version.h"
 636 ],[
 637         touch "$LUSTRE/include/linux/lustre_version.h"
 638         if test x$enable_server = xyes ; then
 639                 AC_MSG_WARN([Unpatched kernel detected.])
 640                 AC_MSG_WARN([Lustre servers cannot be built with an unpatched kernel;])
 641                 AC_MSG_WARN([disabling server build])
 642                 enable_server='no'
 643         fi
 644 ])
 645 ])
 646
 647 AC_DEFUN([LC_FUNC_SET_FS_PWD],
 648 [AC_MSG_CHECKING([if kernel exports show_task])
 649 have_show_task=0
 650         if grep -q "EXPORT_SYMBOL(show_task)" \
 651                  "$LINUX/fs/namespace.c" 2>/dev/null ; then
 652                 AC_DEFINE(HAVE_SET_FS_PWD, 1, [set_fs_pwd is exported])
 653                 AC_MSG_RESULT([yes])
 654         else
 655                 AC_MSG_RESULT([no])
 656         fi
 657 ])
 658
 659
 660 #
 661 # LC_FUNC_MS_FLOCK_LOCK
 662 #
 663 # SLES9 kernel has MS_FLOCK_LOCK sb flag
 664 #
 665 AC_DEFUN([LC_FUNC_MS_FLOCK_LOCK],
 666 [AC_MSG_CHECKING([if kernel has MS_FLOCK_LOCK sb flag])
 667 LB_LINUX_TRY_COMPILE([
 668         #include <linux/fs.h>
 669 ],[
 670         int flags = MS_FLOCK_LOCK;
 671 ],[
 672         AC_DEFINE(HAVE_MS_FLOCK_LOCK, 1,
 673                 [kernel has MS_FLOCK_LOCK flag])
 674         AC_MSG_RESULT([yes])
 675 ],[
 676         AC_MSG_RESULT([no])
 677 ])
 678 ])
 679
 680 #
 681 # LC_FUNC_HAVE_CAN_SLEEP_ARG
 682 #
 683 # SLES9 kernel has third arg can_sleep
 684 # in fs/locks.c: flock_lock_file_wait()
 685 #
 686 AC_DEFUN([LC_FUNC_HAVE_CAN_SLEEP_ARG],
 687 [AC_MSG_CHECKING([if kernel has third arg can_sleep in fs/locks.c: flock_lock_file_wait()])
 688 LB_LINUX_TRY_COMPILE([
 689         #include <linux/fs.h>
 690 ],[
 691         int cansleep;
 692         struct file *file;
 693         struct file_lock *file_lock;
 694         flock_lock_file_wait(file, file_lock, cansleep);
 695 ],[
 696         AC_DEFINE(HAVE_CAN_SLEEP_ARG, 1,
 697                 [kernel has third arg can_sleep in fs/locks.c: flock_lock_file_wait()])
 698         AC_MSG_RESULT([yes])
 699 ],[
 700         AC_MSG_RESULT([no])
 701 ])
 702 ])
 703
 704 #
 705 # LC_FUNC_F_OP_FLOCK
 706 #
 707 # rhel4.2 kernel has f_op->flock field
 708 #
 709 AC_DEFUN([LC_FUNC_F_OP_FLOCK],
 710 [AC_MSG_CHECKING([if struct file_operations has flock field])
 711 LB_LINUX_TRY_COMPILE([
 712         #include <linux/fs.h>
 713 ],[
 714         struct file_operations ll_file_operations_flock;
 715         ll_file_operations_flock.flock = NULL;
 716 ],[
 717         AC_DEFINE(HAVE_F_OP_FLOCK, 1,
 718                 [struct file_operations has flock field])
 719         AC_MSG_RESULT([yes])
 720 ],[
 721         AC_MSG_RESULT([no])
 722 ])
 723 ])
 724
 725 #
 726 # LC_FUNC_MS_FLOCK_LOCK
 727 #
 728 # SLES9 kernel has MS_FLOCK_LOCK sb flag
 729 #
 730 AC_DEFUN([LC_FUNC_MS_FLOCK_LOCK],
 731 [AC_MSG_CHECKING([if kernel has MS_FLOCK_LOCK sb flag])
 732 LB_LINUX_TRY_COMPILE([
 733         #include <linux/fs.h>
 734 ],[
 735         int flags = MS_FLOCK_LOCK;
 736 ],[
 737         AC_DEFINE(HAVE_MS_FLOCK_LOCK, 1,
 738                 [kernel has MS_FLOCK_LOCK flag])
 739         AC_MSG_RESULT([yes])
 740 ],[
 741         AC_MSG_RESULT([no])
 742 ])
 743 ])
 744
 745 #
 746 # LC_FUNC_HAVE_CAN_SLEEP_ARG
 747 #
 748 # SLES9 kernel has third arg can_sleep
 749 # in fs/locks.c: flock_lock_file_wait()
 750 #
 751 AC_DEFUN([LC_FUNC_HAVE_CAN_SLEEP_ARG],
 752 [AC_MSG_CHECKING([if kernel has third arg can_sleep in fs/locks.c: flock_lock_file_wait()])
 753 LB_LINUX_TRY_COMPILE([
 754         #include <linux/fs.h>
 755 ],[
 756         int cansleep;
 757         struct file *file;
 758         struct file_lock *file_lock;
 759         flock_lock_file_wait(file, file_lock, cansleep);
 760 ],[
 761         AC_DEFINE(HAVE_CAN_SLEEP_ARG, 1,
 762                 [kernel has third arg can_sleep in fs/locks.c: flock_lock_file_wait()])
 763         AC_MSG_RESULT([yes])
 764 ],[
 765         AC_MSG_RESULT([no])
 766 ])
 767 ])
 768
 769 #
 770 # LC_TASK_PPTR
 771 #
 772 # task struct has p_pptr instead of parent
 773 #
 774 AC_DEFUN([LC_TASK_PPTR],
 775 [AC_MSG_CHECKING([task p_pptr found])
 776 LB_LINUX_TRY_COMPILE([
 777         #include <linux/sched.h>
 778 ],[
 779         struct task_struct *p;
 780
 781         p = p->p_pptr;
 782 ],[
 783         AC_MSG_RESULT([yes])
 784         AC_DEFINE(HAVE_TASK_PPTR, 1, [task p_pptr found])
 785 ],[
 786         AC_MSG_RESULT([no])
 787 ])
 788 ])
 789
 790 #
 791 # LC_FUNC_F_OP_FLOCK
 792 #
 793 # rhel4.2 kernel has f_op->flock field
 794 #
 795 AC_DEFUN([LC_FUNC_F_OP_FLOCK],
 796 [AC_MSG_CHECKING([if struct file_operations has flock field])
 797 LB_LINUX_TRY_COMPILE([
 798         #include <linux/fs.h>
 799 ],[
 800         struct file_operations ll_file_operations_flock;
 801         ll_file_operations_flock.flock = NULL;
 802 ],[
 803         AC_DEFINE(HAVE_F_OP_FLOCK, 1,
 804                 [struct file_operations has flock field])
 805         AC_MSG_RESULT([yes])
 806 ],[
 807         AC_MSG_RESULT([no])
 808 ])
 809 ])
 810
 811 # LC_INODE_I_MUTEX
 812 # after 2.6.15 inode have i_mutex intead of i_sem
 813 AC_DEFUN([LC_INODE_I_MUTEX],
 814 [AC_MSG_CHECKING([use inode have i_mutex ])
 815 LB_LINUX_TRY_COMPILE([
 816         #include <linux/mutex.h>
 817         #include <linux/fs.h>
 818 ],[
 819         struct inode i;
 820
 821         mutex_unlock(&i.i_mutex);
 822 ],[
 823         AC_MSG_RESULT(yes)
 824         AC_DEFINE(HAVE_INODE_I_MUTEX, 1,
 825                 [after 2.6.15 inode have i_mutex intead of i_sem])
 826 ],[
 827         AC_MSG_RESULT(NO)
 828 ])
 829 ])
 830
 831
 832 # LC_DQUOTOFF_MUTEX
 833 # after 2.6.17 dquote use mutex instead if semaphore
 834 AC_DEFUN([LC_DQUOTOFF_MUTEX],
 835 [AC_MSG_CHECKING([use dqonoff_mutex])
 836 LB_LINUX_TRY_COMPILE([
 837         #include <linux/mutex.h>
 838         #include <linux/fs.h>
 839         #include <linux/quota.h>
 840 ],[
 841         struct quota_info dq;
 842
 843         mutex_unlock(&dq.dqonoff_mutex);
 844 ],[
 845         AC_MSG_RESULT(yes)
 846         AC_DEFINE(HAVE_DQUOTOFF_MUTEX, 1,
 847                 [after 2.6.17 dquote use mutex instead if semaphore])
 848 ],[
 849         AC_MSG_RESULT(NO)
 850 ])
 851 ])
 852
 853 #
 854 # LC_STATFS_DENTRY_PARAM
 855 # starting from 2.6.18 linux kernel uses dentry instead of
 856 # super_block for first vfs_statfs argument
 857 #
 858 AC_DEFUN([LC_STATFS_DENTRY_PARAM],
 859 [AC_MSG_CHECKING([first vfs_statfs parameter is dentry])
 860 LB_LINUX_TRY_COMPILE([
 861         #include <linux/fs.h>
 862 ],[
 863         int vfs_statfs(struct dentry *, struct kstatfs *);
 864 ],[
 865         AC_DEFINE(HAVE_STATFS_DENTRY_PARAM, 1,
 866                 [first parameter of vfs_statfs is dentry])
 867         AC_MSG_RESULT([yes])
 868 ],[
 869         AC_MSG_RESULT([no])
 870 ])
 871 ])
 872
 873 #
 874 # LC_VFS_KERN_MOUNT
 875 # starting from 2.6.18 kernel don`t export do_kern_mount
 876 # and want to use vfs_kern_mount instead.
 877 #
 878 AC_DEFUN([LC_VFS_KERN_MOUNT],
 879 [AC_MSG_CHECKING([vfs_kern_mount exist in kernel])
 880 LB_LINUX_TRY_COMPILE([
 881         #include <linux/mount.h>
 882 ],[
 883         vfs_kern_mount(NULL, 0, NULL, NULL);
 884 ],[
 885         AC_DEFINE(HAVE_VFS_KERN_MOUNT, 1,
 886                 [vfs_kern_mount exist in kernel])
 887         AC_MSG_RESULT([yes])
 888 ],[
 889         AC_MSG_RESULT([no])
 890 ])
 891 ])
 892
 893 #
 894 # LC_INVALIDATEPAGE_RETURN_INT
 895 # more 2.6 api changes.  return type for the invalidatepage
 896 # address_space_operation is 'void' in new kernels but 'int' in old
 897 #
 898 AC_DEFUN([LC_INVALIDATEPAGE_RETURN_INT],
 899 [AC_MSG_CHECKING([invalidatepage has return int])
 900 LB_LINUX_TRY_COMPILE([
 901         #include <linux/buffer_head.h>
 902 ],[
 903         int rc = block_invalidatepage(NULL, 0);
 904 ],[
 905         AC_MSG_RESULT(yes)
 906         AC_DEFINE(HAVE_INVALIDATEPAGE_RETURN_INT, 1,
 907                 [Define if return type of invalidatepage should be int])
 908 ],[
 909         AC_MSG_RESULT(NO)
 910 ])
 911 ])
 912
 913 # LC_UMOUNTBEGIN_HAS_VFSMOUNT
 914 # more 2.6 API changes. 2.6.18 umount_begin has different parameters
 915 AC_DEFUN([LC_UMOUNTBEGIN_HAS_VFSMOUNT],
 916 [AC_MSG_CHECKING([if umount_begin needs vfsmount parameter instead of super_block])
 917 tmp_flags="$EXTRA_KCFLAGS"
 918 EXTRA_KCFLAGS="-Werror"
 919 LB_LINUX_TRY_COMPILE([
 920         #include <linux/fs.h>
 921
 922         struct vfsmount;
 923         static void cfg_umount_begin (struct vfsmount *v, int flags)
 924         {
 925                 ;
 926         }
 927
 928         static struct super_operations cfg_super_operations = {
 929                 .umount_begin   = cfg_umount_begin,
 930         };
 931 ],[
 932         cfg_super_operations.umount_begin(NULL,0);
 933 ],[
 934         AC_MSG_RESULT(yes)
 935         AC_DEFINE(HAVE_UMOUNTBEGIN_VFSMOUNT, 1,
 936                 [Define umount_begin need second argument])
 937 ],[
 938         AC_MSG_RESULT(NO)
 939 ])
 940 EXTRA_KCFLAGS="$tmp_flags"
 941 ])
 942
 943 # 2.6.19 API changes
 944 # inode don`t have i_blksize field
 945 AC_DEFUN([LC_INODE_BLKSIZE],
 946 [AC_MSG_CHECKING([inode has i_blksize field])
 947 LB_LINUX_TRY_COMPILE([
 948 #include <linux/fs.h>
 949 ],[
 950         struct inode i;
 951         i.i_blksize = 0;
 952 ],[
 953         AC_MSG_RESULT(yes)
 954         AC_DEFINE(HAVE_INODE_BLKSIZE, 1,
 955                 [struct inode has i_blksize field])
 956 ],[
 957         AC_MSG_RESULT(NO)
 958 ])
 959 ])
 960
 961 # LC_VFS_READDIR_U64_INO
 962 # 2.6.19 use u64 for inode number instead of inode_t
 963 AC_DEFUN([LC_VFS_READDIR_U64_INO],
 964 [AC_MSG_CHECKING([check vfs_readdir need 64bit inode number])
 965 tmp_flags="$EXTRA_KCFLAGS"
 966 EXTRA_KCFLAGS="-Werror"
 967 LB_LINUX_TRY_COMPILE([
 968 #include <linux/fs.h>
 969         int fillonedir(void * __buf, const char * name, int namlen, loff_t offset,
 970                       u64 ino, unsigned int d_type)
 971         {
 972                 return 0;
 973         }
 974 ],[
 975         filldir_t filter;
 976
 977         filter = fillonedir;
 978         return 1;
 979 ],[
 980         AC_MSG_RESULT(yes)
 981         AC_DEFINE(HAVE_VFS_READDIR_U64_INO, 1,
 982                 [if vfs_readdir need 64bit inode number])
 983 ],[
 984         AC_MSG_RESULT(NO)
 985 ])
 986 EXTRA_KCFLAGS="$tmp_flags"
 987 ])
 988
 989 # LC_GENERIC_FILE_WRITE
 990 # 2.6.19 introduce do_sync_write instead of
 991 # generic_file_write
 992 AC_DEFUN([LC_GENERIC_FILE_WRITE],
 993 [AC_MSG_CHECKING([use generic_file_write])
 994 LB_LINUX_TRY_COMPILE([
 995         #include <linux/fs.h>
 996 ],[
 997         int result = generic_file_read(NULL, NULL, 0, 0);
 998 ],[
 999         AC_MSG_RESULT(yes)
1000         AC_DEFINE(HAVE_GENERIC_FILE_WRITE, 1,
1001                 [use generic_file_write])
1002 ],[
1003         AC_MSG_RESULT(NO)
1004 ])
1005 ])
1006
1007 # LC_GENERIC_FILE_READ
1008 # 2.6.19 need to use do_sync_read instead of
1009 # generic_file_read
1010 AC_DEFUN([LC_GENERIC_FILE_READ],
1011 [AC_MSG_CHECKING([use generic_file_read])
1012 LB_LINUX_TRY_COMPILE([
1013         #include <linux/fs.h>
1014 ],[
1015         int result = generic_file_read(NULL, NULL, 0, 0);
1016 ],[
1017         AC_MSG_RESULT(yes)
1018         AC_DEFINE(HAVE_GENERIC_FILE_READ, 1,
1019                 [use generic_file_read])
1020 ],[
1021         AC_MSG_RESULT(NO)
1022 ])
1023 ])
1024
1025 # LC_NR_PAGECACHE
1026 # 2.6.18 don`t export nr_pagecahe
1027 AC_DEFUN([LC_NR_PAGECACHE],
1028 [AC_MSG_CHECKING([kernel export nr_pagecache])
1029 LB_LINUX_TRY_COMPILE([
1030         #include <linux/pagemap.h>
1031 ],[
1032         return atomic_read(&nr_pagecache);
1033 ],[
1034         AC_MSG_RESULT(yes)
1035         AC_DEFINE(HAVE_NR_PAGECACHE, 1,
1036                 [is kernel export nr_pagecache])
1037 ],[
1038         AC_MSG_RESULT(NO)
1039 ])
1040 ])
1041
1042 # LC_WB_RANGE_START
1043 # 2.6.20 rename struct writeback fields
1044 AC_DEFUN([LC_WB_RANGE_START],
1045 [AC_MSG_CHECKING([kernel has range_start in struct writeback_control])
1046 LB_LINUX_TRY_COMPILE([
1047         #include <linux/fs.h>
1048         #include <linux/sched.h>
1049         #include <linux/writeback.h>
1050 ],[
1051         struct writeback_control wb;
1052
1053         wb.range_start = 0;
1054 ],[
1055         AC_MSG_RESULT(yes)
1056         AC_DEFINE(HAVE_WB_RANGE_START, 1,
1057                   [writeback control has range_start field])
1058 ],[
1059         AC_MSG_RESULT(NO)
1060 ])
1061 ])
1062
1063 #
1064 # LC_PROG_LINUX
1065 #
1066 # Lustre linux kernel checks
1067 #
1068 AC_DEFUN([LC_PROG_LINUX],
1069 [ LC_LUSTRE_VERSION_H
1070 if test x$enable_server = xyes ; then
1071         LC_CONFIG_BACKINGFS
1072 fi
1073 LC_CONFIG_PINGER
1074 LC_CONFIG_LIBLUSTRE_RECOVERY
1075 LC_CONFIG_QUOTA
1076 LC_CONFIG_HEALTH_CHECK_WRITE
1077
1078 LC_TASK_PPTR
1079
1080 LC_STRUCT_KIOBUF
1081 LC_FUNC_COND_RESCHED
1082 LC_FUNC_ZAP_PAGE_RANGE
1083 LC_FUNC_PDE
1084 LC_FUNC_DIRECT_IO
1085 LC_HEADER_MM_INLINE
1086 LC_STRUCT_INODE
1087 LC_FUNC_REGISTER_CACHE
1088 LC_FUNC_GRAB_CACHE_PAGE_NOWAIT_GFP
1089 LC_FUNC_DEV_SET_RDONLY
1090 LC_FUNC_FILEMAP_FDATAWRITE
1091 LC_STRUCT_STATFS
1092 LC_FUNC_PAGE_MAPPED
1093 LC_STRUCT_FILE_OPS_UNLOCKED_IOCTL
1094 LC_FILEMAP_POPULATE
1095 LC_D_ADD_UNIQUE
1096 LC_BIT_SPINLOCK_H
1097 LC_XATTR_ACL
1098 LC_STRUCT_INTENT_FILE
1099 LC_POSIX_ACL_XATTR_H
1100 LC_EXPORT___IGET
1101 LC_FUNC_SET_FS_PWD
1102 LC_FUNC_MS_FLOCK_LOCK
1103 LC_FUNC_HAVE_CAN_SLEEP_ARG
1104 LC_FUNC_F_OP_FLOCK
1105 LC_QUOTA_READ
1106 LC_COOKIE_FOLLOW_LINK
1107
1108 # 2.6.15
1109 LC_INODE_I_MUTEX
1110
1111 # 2.6.17
1112 LC_DQUOTOFF_MUTEX
1113
1114 # 2.6.18
1115 LC_NR_PAGECACHE
1116 LC_STATFS_DENTRY_PARAM
1117 LC_VFS_KERN_MOUNT
1118 LC_INVALIDATEPAGE_RETURN_INT
1119 LC_UMOUNTBEGIN_HAS_VFSMOUNT
1120 LC_WB_RANGE_START
1121
1122 # 2.6.19
1123 LC_INODE_BLKSIZE
1124 LC_VFS_READDIR_U64_INO
1125 LC_GENERIC_FILE_READ
1126 LC_GENERIC_FILE_WRITE
1127 ])
1128
1129 #
1130 # LC_CONFIG_CLIENT_SERVER
1131 #
1132 # Build client/server sides of Lustre
1133 #
1134 AC_DEFUN([LC_CONFIG_CLIENT_SERVER],
1135 [AC_MSG_CHECKING([whether to build Lustre server support])
1136 AC_ARG_ENABLE([server],
1137         AC_HELP_STRING([--disable-server],
1138                         [disable Lustre server support]),
1139         [],[enable_server='yes'])
1140 AC_MSG_RESULT([$enable_server])
1141
1142 AC_MSG_CHECKING([whether to build Lustre client support])
1143 AC_ARG_ENABLE([client],
1144         AC_HELP_STRING([--disable-client],
1145                         [disable Lustre client support]),
1146         [],[enable_client='yes'])
1147 AC_MSG_RESULT([$enable_client])])
1148
1149 #
1150 # LC_CONFIG_LIBLUSTRE
1151 #
1152 # whether to build liblustre
1153 #
1154 AC_DEFUN([LC_CONFIG_LIBLUSTRE],
1155 [AC_MSG_CHECKING([whether to build Lustre library])
1156 AC_ARG_ENABLE([liblustre],
1157         AC_HELP_STRING([--disable-liblustre],
1158                         [disable building of Lustre library]),
1159         [],[enable_liblustre=$with_sysio])
1160 AC_MSG_RESULT([$enable_liblustre])
1161 # only build sysio if liblustre is built
1162 with_sysio="$enable_liblustre"
1163
1164 AC_MSG_CHECKING([whether to build liblustre tests])
1165 AC_ARG_ENABLE([liblustre-tests],
1166         AC_HELP_STRING([--enable-liblustre-tests],
1167                         [enable liblustre tests, if --disable-tests is used]),
1168         [],[enable_liblustre_tests=$enable_tests])
1169 if test x$enable_liblustre != xyes ; then
1170    enable_liblustre_tests='no'
1171 fi
1172 AC_MSG_RESULT([$enable_liblustre_tests])
1173
1174 AC_MSG_CHECKING([whether to build mpitests])
1175 AC_ARG_ENABLE([mpitests],
1176         AC_HELP_STRING([--enable-mpitests],
1177                         [build liblustre mpi tests]),
1178         [],[enable_mpitests=no])
1179 AC_MSG_RESULT([$enable_mpitests])
1180
1181 AC_MSG_NOTICE([Enabling Lustre configure options for libsysio])
1182 ac_configure_args="$ac_configure_args --with-lustre-hack --with-sockets"
1183
1184 LC_CONFIG_PINGER
1185 LC_CONFIG_LIBLUSTRE_RECOVERY
1186 ])
1187
1188 #
1189 # LC_CONFIG_QUOTA
1190 #
1191 # whether to enable quota support
1192 #
1193 AC_DEFUN([LC_CONFIG_QUOTA],
1194 [AC_MSG_CHECKING([whether to enable quota support])
1195 AC_ARG_ENABLE([quota],
1196         AC_HELP_STRING([--enable-quota],
1197                         [enable quota support]),
1198         [],[enable_quota='yes'])
1199 AC_MSG_RESULT([$enable_quota])
1200 if test x$linux25 != xyes; then
1201    enable_quota='no'
1202 fi
1203 if test x$enable_quota != xno; then
1204    AC_DEFINE(HAVE_QUOTA_SUPPORT, 1, [Enable quota support])
1205 fi
1206 ])
1207
1208 AC_DEFUN([LC_QUOTA_READ],
1209 [AC_MSG_CHECKING([if kernel supports quota_read])
1210 LB_LINUX_TRY_COMPILE([
1211         #include <linux/fs.h>
1212 ],[
1213         struct super_operations sp;
1214         void *i = (void *)sp.quota_read;
1215 ],[
1216         AC_MSG_RESULT([yes])
1217         AC_DEFINE(KERNEL_SUPPORTS_QUOTA_READ, 1, [quota_read found])
1218 ],[
1219         AC_MSG_RESULT([no])
1220 ])
1221 ])
1222
1223 #
1224 # LC_COOKIE_FOLLOW_LINK
1225 #
1226 # kernel 2.6.13+ ->follow_link returns a cookie
1227 #
1228
1229 AC_DEFUN([LC_COOKIE_FOLLOW_LINK],
1230 [AC_MSG_CHECKING([if inode_operations->follow_link returns a cookie])
1231 LB_LINUX_TRY_COMPILE([
1232         #include <linux/fs.h>
1233         #include <linux/namei.h>
1234 ],[
1235         struct dentry dentry;
1236         struct nameidata nd;
1237
1238         dentry.d_inode->i_op->put_link(&dentry, &nd, NULL);
1239 ],[
1240         AC_DEFINE(HAVE_COOKIE_FOLLOW_LINK, 1, [inode_operations->follow_link returns a cookie])
1241         AC_MSG_RESULT([yes])
1242 ],[
1243         AC_MSG_RESULT([no])
1244 ])
1245 ])
1246
1247 #
1248 # LC_CONFIGURE
1249 #
1250 # other configure checks
1251 #
1252 AC_DEFUN([LC_CONFIGURE],
1253 [LC_CONFIG_OBD_BUFFER_SIZE
1254
1255 # include/liblustre.h
1256 AC_CHECK_HEADERS([asm/page.h sys/user.h sys/vfs.h stdint.h blkid/blkid.h])
1257
1258 # include/lustre/lustre_user.h
1259 # See note there re: __ASM_X86_64_PROCESSOR_H
1260 AC_CHECK_HEADERS([linux/quota.h])
1261
1262 # liblustre/llite_lib.h
1263 AC_CHECK_HEADERS([xtio.h file.h])
1264
1265 # liblustre/dir.c
1266 AC_CHECK_HEADERS([linux/types.h sys/types.h linux/unistd.h unistd.h])
1267
1268 # liblustre/lutil.c
1269 AC_CHECK_HEADERS([netinet/in.h arpa/inet.h catamount/data.h])
1270 AC_CHECK_FUNCS([inet_ntoa])
1271
1272 # libsysio/src/readlink.c
1273 LC_READLINK_SSIZE_T
1274
1275 # utils/llverfs.c
1276 AC_CHECK_HEADERS([ext2fs/ext2fs.h])
1277
1278 # Super safe df
1279 AC_ARG_ENABLE([mindf],
1280       AC_HELP_STRING([--enable-mindf],
1281                       [Make statfs report the minimum available space on any single OST instead of the sum of free space on all OSTs]),
1282       [],[])
1283 if test "$enable_mindf" = "yes" ;  then
1284       AC_DEFINE([MIN_DF], 1, [Report minimum OST free space])
1285 fi
1286
1287 ])
1288
1289 #
1290 # LC_CONDITIONALS
1291 #
1292 # AM_CONDITIONALS for lustre
1293 #
1294 AC_DEFUN([LC_CONDITIONALS],
1295 [AM_CONDITIONAL(LIBLUSTRE, test x$enable_liblustre = xyes)
1296 AM_CONDITIONAL(LDISKFS, test x$enable_ldiskfs = xyes)
1297 AM_CONDITIONAL(USE_QUILT, test x$QUILT != xno)
1298 AM_CONDITIONAL(LIBLUSTRE_TESTS, test x$enable_liblustre_tests = xyes)
1299 AM_CONDITIONAL(MPITESTS, test x$enable_mpitests = xyes, Build MPI Tests)
1300 AM_CONDITIONAL(CLIENT, test x$enable_client = xyes)
1301 AM_CONDITIONAL(SERVER, test x$enable_server = xyes)
1302 AM_CONDITIONAL(QUOTA, test x$enable_quota = xyes)
1303 AM_CONDITIONAL(BLKID, test x$ac_cv_header_blkid_blkid_h = xyes)
1304 AM_CONDITIONAL(EXT2FS_DEVEL, test x$ac_cv_header_ext2fs_ext2fs_h = xyes)
1305 AM_CONDITIONAL(LIBPTHREAD, test x$enable_libpthread = xyes)
1306 ])
1307
1308 #
1309 # LC_CONFIG_FILES
1310 #
1311 # files that should be generated with AC_OUTPUT
1312 #
1313 AC_DEFUN([LC_CONFIG_FILES],
1314 [AC_CONFIG_FILES([
1315 lustre/Makefile
1316 lustre/autoMakefile
1317 lustre/autoconf/Makefile
1318 lustre/contrib/Makefile
1319 lustre/doc/Makefile
1320 lustre/include/Makefile
1321 lustre/include/lustre_ver.h
1322 lustre/include/linux/Makefile
1323 lustre/include/lustre/Makefile
1324 lustre/kernel_patches/targets/2.6-suse.target
1325 lustre/kernel_patches/targets/2.6-vanilla.target
1326 lustre/kernel_patches/targets/2.6-rhel4.target
1327 lustre/kernel_patches/targets/2.6-fc5.target
1328 lustre/kernel_patches/targets/2.6-patchless.target
1329 lustre/kernel_patches/targets/2.6-sles10.target
1330 lustre/kernel_patches/targets/hp_pnnl-2.4.target
1331 lustre/kernel_patches/targets/rh-2.4.target
1332 lustre/kernel_patches/targets/rhel-2.4.target
1333 lustre/kernel_patches/targets/suse-2.4.21-2.target
1334 lustre/kernel_patches/targets/sles-2.4.target
1335 lustre/ldiskfs/Makefile
1336 lustre/ldiskfs/autoMakefile
1337 lustre/ldiskfs2/Makefile
1338 lustre/ldiskfs2/autoMakefile
1339 lustre/ldlm/Makefile
1340 lustre/liblustre/Makefile
1341 lustre/liblustre/tests/Makefile
1342 lustre/llite/Makefile
1343 lustre/llite/autoMakefile
1344 lustre/lov/Makefile
1345 lustre/lov/autoMakefile
1346 lustre/lvfs/Makefile
1347 lustre/lvfs/autoMakefile
1348 lustre/mdc/Makefile
1349 lustre/mdc/autoMakefile
1350 lustre/mds/Makefile
1351 lustre/mds/autoMakefile
1352 lustre/obdclass/Makefile
1353 lustre/obdclass/autoMakefile
1354 lustre/obdclass/linux/Makefile
1355 lustre/obdecho/Makefile
1356 lustre/obdecho/autoMakefile
1357 lustre/obdfilter/Makefile
1358 lustre/obdfilter/autoMakefile
1359 lustre/osc/Makefile
1360 lustre/osc/autoMakefile
1361 lustre/ost/Makefile
1362 lustre/ost/autoMakefile
1363 lustre/mgc/Makefile
1364 lustre/mgc/autoMakefile
1365 lustre/mgs/Makefile
1366 lustre/mgs/autoMakefile
1367 lustre/ptlrpc/Makefile
1368 lustre/ptlrpc/autoMakefile
1369 lustre/quota/Makefile
1370 lustre/quota/autoMakefile
1371 lustre/scripts/Makefile
1372 lustre/scripts/version_tag.pl
1373 lustre/tests/Makefile
1374 lustre/utils/Makefile
1375 ])
1376 case $lb_target_os in
1377         darwin)
1378                 AC_CONFIG_FILES([ lustre/obdclass/darwin/Makefile ])
1379                 ;;
1380 esac
1381
1382 ])