afs: shake harder in shake-loose-vcaches
[openafs.git] / acinclude.m4
1 dnl This file contains the common configuration code which would
2 dnl otherwise be duplicated between configure and configure-libafs.
3 dnl
4 dnl NB: Because this code is a macro, references to positional shell
5 dnl parameters must be done like $[]1 instead of $1
6
7 AC_DEFUN([OPENAFS_CONFIGURE_COMMON],[
8 AH_BOTTOM([
9 #undef HAVE_RES_SEARCH
10 #undef STRUCT_SOCKADDR_HAS_SA_LEN
11 #if !defined(__BIG_ENDIAN__) && !defined(__LITTLE_ENDIAN__)
12 # if ENDIANESS_IN_SYS_PARAM_H
13 #  ifndef KERNEL
14 #   include <sys/types.h>
15 #   include <sys/param.h>
16 #   if BYTE_ORDER == BIG_ENDIAN
17 #    define WORDS_BIGENDIAN 1
18 #   endif
19 #  else
20 #   if defined(AUTOCONF_FOUND_BIGENDIAN)
21 #    define WORDS_BIGENDIAN 1
22 #   else
23 #    undef WORDS_BIGENDIAN
24 #   endif
25 #  endif
26 # else
27 #  if defined(AUTOCONF_FOUND_BIGENDIAN)
28 #   define WORDS_BIGENDIAN 1
29 #  else
30 #   undef WORDS_BIGENDIAN
31 #  endif
32 # endif
33 #else
34 # if defined(__BIG_ENDIAN__)
35 #  define WORDS_BIGENDIAN 1
36 # else
37 #  undef WORDS_BIGENDIAN
38 # endif
39 #endif
40 #ifdef UKERNEL
41 /*
42  * Always use 64-bit file offsets for UKERNEL code. Needed for UKERNEL stuff to
43  * play nice with some other interfaces like FUSE. We technically only would
44  * need to define this when building for such interfaces, but set it always to
45  * try and reduce potential confusion. 
46  */
47 # define _FILE_OFFSET_BITS 64
48 # define AFS_CACHE_VNODE_PATH
49 #endif
50
51 #undef AFS_NAMEI_ENV
52 #undef BITMAP_LATER
53 #undef FAST_RESTART
54 #undef DEFINED_FOR_EACH_PROCESS
55 #undef DEFINED_PREV_TASK
56 #undef EXPORTED_SYS_CALL_TABLE
57 #undef EXPORTED_IA32_SYS_CALL_TABLE
58 #undef IRIX_HAS_MEM_FUNCS
59 #undef RECALC_SIGPENDING_TAKES_VOID
60 #undef STRUCT_FS_HAS_FS_ROLLED
61 #undef ssize_t
62 /* glue for RedHat kernel bug */
63 #undef ENABLE_REDHAT_BUILDSYS
64 #if defined(ENABLE_REDHAT_BUILDSYS) && defined(KERNEL) && defined(REDHAT_FIX)
65 # include "redhat-fix.h"
66 #endif])
67
68 AC_CANONICAL_HOST
69 SRCDIR_PARENT=`pwd`
70
71 #BOZO_SAVE_CORES pam
72
73 dnl System identity.
74 AC_ARG_WITH([afs-sysname],
75     [AS_HELP_STRING([--with-afs-sysname=sys], [use sys for the afs sysname])
76 ])
77
78 dnl General feature options.
79 AC_ARG_ENABLE([namei-fileserver],
80     [AS_HELP_STRING([--enable-namei-fileserver],
81         [force compilation of namei fileserver in preference to inode
82          fileserver])],
83     [],
84     [enable_namei_fileserver="default"])
85 AC_ARG_ENABLE([supergroups],
86     [AS_HELP_STRING([--enable-supergroups],
87         [enable support for nested pts groups])],
88     [],
89     [enable_supergroups="no"])
90 AC_ARG_ENABLE([bitmap-later],
91     [AS_HELP_STRING([--enable-bitmap-later],
92         [enable fast startup of file server by not reading bitmap till
93          needed])],
94     [AS_IF([test x"$withval" = xyes],
95         [AC_MSG_WARN([bitmap-later is only used by non-demand-attach
96             fileservers.  Please migrate to demand-attach instead.])])],
97     [enable_bitmap_later="no"])
98 AC_ARG_ENABLE([unix-sockets],
99     [AS_HELP_STRING([--disable-unix-sockets],
100         [disable use of unix domain sockets for fssync (defaults to enabled)])],
101     [],
102     [enable_unix_sockets="yes"])
103 AC_ARG_ENABLE([tivoli-tsm],
104     [AS_HELP_STRING([--enable-tivoli-tsm],
105         [enable use of the Tivoli TSM API libraries for butc support])],
106     [],
107     [enable_tivoli_tsm="no"])
108 AC_ARG_ENABLE([pthreaded-ubik],
109     [AS_HELP_STRING([--disable-pthreaded-ubik],
110         [disable installation of pthreaded ubik applications (defaults to
111          enabled)])],
112     [],
113     [enable_pthreaded_ubik="yes"])
114
115 dnl Kernel module build options.
116 AC_ARG_WITH([linux-kernel-headers],
117     [AS_HELP_STRING([--with-linux-kernel-headers=path],
118         [use the kernel headers found at path (optional, defaults to
119          /lib/modules/`uname -r`/build, then /lib/modules/`uname -r`/source,
120          then /usr/src/linux-2.4, and lastly /usr/src/linux)])
121 ])
122 AC_ARG_WITH([linux-kernel-build],
123     [AS_HELP_STRING([--with-linux-kernel-build=path],
124         [use the kernel build found at path(optional, defaults to
125         kernel headers path)]
126 )])
127 AC_ARG_WITH([bsd-kernel-headers],
128     [AS_HELP_STRING([--with-bsd-kernel-headers=path],
129         [use the kernel headers found at path (optional, defaults to
130          /usr/src/sys)])
131 ])
132 AC_ARG_WITH([bsd-kernel-build],
133     [AS_HELP_STRING([--with-bsd-kernel-build=path],
134         [use the kernel build found at path (optional, defaults to
135          KSRC/i386/compile/GENERIC)])
136 ])
137 AC_ARG_WITH([linux-kernel-packaging],
138     [AS_HELP_STRING([--with-linux-kernel-packaging],
139         [use standard naming conventions to aid Linux kernel build packaging
140          (disables MPS, sets the kernel module name to openafs.ko, and
141          installs kernel modules into the standard Linux location)])],
142     [AC_SUBST([LINUX_KERNEL_PACKAGING], [yes])
143      AC_SUBST([LINUX_LIBAFS_NAME], [openafs])],
144     [AC_SUBST([LINUX_LIBAFS_NAME], [libafs])
145 ])
146 AC_ARG_ENABLE([kernel-module],
147     [AS_HELP_STRING([--disable-kernel-module],
148         [disable compilation of the kernel module (defaults to enabled)])],
149     [],
150     [enable_kernel_module="yes"])
151 AC_ARG_ENABLE([redhat-buildsys],
152     [AS_HELP_STRING([--enable-redhat-buildsys],
153         [enable compilation of the redhat build system kernel (defaults to
154          disabled)])],
155     [],
156     [enable_redhat_buildsys="no"])
157
158 dnl Installation locations.
159 AC_ARG_ENABLE([transarc-paths],
160     [AS_HELP_STRING([--enable-transarc-paths],
161         [use Transarc style paths like /usr/afs and /usr/vice])],
162     [],
163     [enable_transarc_paths="no"])
164
165 dnl Deprecated crypto
166 AC_ARG_ENABLE([kauth],
167     [AS_HELP_STRING([--enable-kauth],
168         [install the deprecated kauth server, pam modules, and utilities
169          (defaults to disabled)])],
170     [enable_pam="yes"],
171     [enable_kauth="no"
172      enable_pam="no"])
173
174 dnl Optimization and debugging flags.
175 AC_ARG_ENABLE([strip-binaries],
176     [AS_HELP_STRING([--disable-strip-binaries],
177         [disable stripping of symbol information from binaries (defaults to
178          enabled)])],
179     [],
180     [enable_strip_binaries="maybe"])
181 AC_ARG_ENABLE([debug],
182     [AS_HELP_STRING([--enable-debug],
183         [enable compilation of the user space code with debugging information
184          (defaults to disabled)])],
185     [],
186     [enable_debug="no"])
187 AC_ARG_ENABLE([optimize],
188     [AS_HELP_STRING([--disable-optimize],
189         [disable optimization for compilation of the user space code (defaults
190          to enabled)])],
191     [],
192     [enable_optimize="yes"])
193 AC_ARG_ENABLE([warnings],
194     [AS_HELP_STRING([--enable-warnings],
195         [enable compilation warnings when building with gcc (defaults to
196          disabled)])],
197     [],
198     [enable_warnings="no"])
199 AC_ARG_ENABLE([checking],
200     [AS_HELP_STRING([--enable-checking],
201         [turn compilation warnings into errors when building with gcc (defaults
202          to disabled)])],
203     [enable_checking="$enableval"],
204     [enable_checking="no"])
205 AC_ARG_ENABLE([debug-locks],
206     [AS_HELP_STRING([--enable-debug-locks],
207         [turn on lock debugging assertions (defaults to disabled)])],
208     [enable_debug_locks="$enableval"],
209     [enable_debug_locks="no"])
210 AC_ARG_ENABLE([debug-kernel],
211     [AS_HELP_STRING([--enable-debug-kernel],
212         [enable compilation of the kernel module with debugging information
213          (defaults to disabled)])],
214     [],
215     [enable_debug_kernel="no"])
216 AC_ARG_ENABLE([optimize-kernel],
217     [AS_HELP_STRING([--disable-optimize-kernel],
218         [disable compilation of the kernel module with optimization (defaults
219          based on platform)])],
220     [],
221     [enable_optimize_kernel=""])
222 AC_ARG_ENABLE([debug-lwp],
223     [AS_HELP_STRING([--enable-debug-lwp],
224         [enable compilation of the LWP code with debugging information
225          (defaults to disabled)])],
226     [],
227     [enable_debug_lwp="no"])
228 AC_ARG_ENABLE([optimize-lwp],
229     [AS_HELP_STRING([--disable-optimize-lwp],
230         [disable optimization for compilation of the LWP code (defaults to
231          enabled)])],
232     [],
233     [enable_optimize_lwp="yes"])
234 AC_ARG_ENABLE([debug-pam],
235     [AS_HELP_STRING([--enable-debug-pam],
236         [enable compilation of the PAM code with debugging information
237          (defaults to disabled)])],
238     [],
239     [enable_debug_pam="no"])
240 AC_ARG_ENABLE([optimize-pam],
241     [AS_HELP_STRING([--disable-optimize-pam],
242         [disable optimization for compilation of the PAM code (defaults to
243          enabled)])],
244     [],
245     [enable_optimize_pam="yes"])
246 AC_ARG_ENABLE([linux-syscall-probing],
247     [AS_HELP_STRING([--enable-linux-syscall-probing],
248         [enable Linux syscall probing (defaults to autodetect)])],
249     [],
250     [enable_linux_syscall_probing="maybe"])
251 AC_ARG_ENABLE([linux-d_splice_alias-extra-iput],
252     [AS_HELP_STRING([--enable-linux-d_splice_alias-extra-iput],
253         [Linux kernels in the 3.17 series prior to 3.17.3 had a bug
254          wherein error returns from the d_splice_alias() function were
255          leaking a reference on the inode.  The bug was fixed for the
256          3.17.3 kernel, and the possibility of an error return was only
257          introduced in kernel 3.17, so only the narrow range of kernels
258          is affected.  Enable this option for builds on systems with
259          kernels affected by this bug, to manually release the reference
260          on error returns and correct the reference counting.
261          Linux commit 51486b900ee92856b977eacfc5bfbe6565028070 (or
262          equivalent) is the fix for the upstream bug, so if such a commit
263          is present, leave this option disabled.  We apologize
264          that you are required to know this about your running kernel,
265          but luckily only a narrow range of versions is affected.])],
266     [],
267     [enable_linux_d_splice_alias_extra_iput="no"])
268 AC_ARG_WITH([crosstools-dir],
269     [AS_HELP_STRING([--with-crosstools-dir=path],
270         [use path for native versions of rxgen, compile_et and config])
271 ])
272
273 AC_ARG_WITH([xslt-processor],
274         AS_HELP_STRING([--with-xslt-processor=ARG],
275         [which XSLT processor to use (possible choices are: libxslt, saxon, xalan-j, xsltproc)]),
276         [XSLTPROC="$withval"],
277         [AC_CHECK_PROGS([XSLTPROC], [libxslt saxon xalan-j xsltproc], [echo])])
278
279 AC_ARG_WITH([html-xsl],
280         AS_HELP_STRING([--with-html-xsl],
281         [build HTML documentation using this stylesheet (default is html/chunk.dsl; specify either html/chunk.xsl or html/docbook.xsl)]),
282         [HTML_XSL="$withval"],
283         [HTML_XSL="html/chunk.xsl"])
284
285 AC_ARG_WITH([docbook2pdf],
286         AS_HELP_STRING([--with-docbook2pdf=ARG],
287         [which Docbook to PDF utility to use (possible choices are: fop, dblatex, docbook2pdf)]),
288         [DOCBOOK2PDF="$withval"],
289         [AC_CHECK_PROGS([DOCBOOK2PDF], [fop dblatex docbook2pdf], [echo])])
290
291 AC_ARG_WITH([docbook-stylesheets],
292         AS_HELP_STRING([--with-docbook-stylesheets=ARG],
293         [location of DocBook stylesheets (default is to search a set of likely paths)]),
294         [DOCBOOK_STYLESHEETS="$withval"],
295         [OPENAFS_SEARCH_DIRLIST([DOCBOOK_STYLESHEETS],
296                 [/usr/share/xml/docbook/stylesheet/nwalsh/current \
297                  /usr/share/xml/docbook/stylesheet/nwalsh \
298                  /usr/share/xml/docbook/xsl-stylesheets \
299                  /usr/share/sgml/docbook/docbook-xsl-stylesheets \
300                  /usr/share/sgml/docbook/xsl-stylesheets \
301                  /usr/share/docbook-xsl \
302                  /usr/share/sgml/docbkxsl \
303                  /usr/local/share/xsl/docbook \
304                  /sw/share/xml/xsl/docbook-xsl \
305                  /opt/local/share/xsl/docbook-xsl],
306                 [$HTML_XSL])
307            AS_IF([test "x$DOCBOOK_STYLESHEETS" = "x"],
308                 [AC_WARN([Docbook stylesheets not found; some documentation can't be built])
309            ])
310         ])
311
312 AC_ARG_WITH([dot],
313         AS_HELP_STRING([--with-dot@<:@=PATH@:>@],
314         [use graphviz dot to generate dependency graphs with doxygen (defaults to autodetect)]),
315         [], [with_dot="maybe"])
316
317 enable_login="no"
318
319 dnl Check whether kindlegen exists.  If not, we'll suppress that part of the
320 dnl documentation build.
321 AC_CHECK_PROGS([KINDLEGEN], [kindlegen])
322 AC_CHECK_PROGS([DOXYGEN], [doxygen])
323
324 dnl Optionally generate graphs with doxygen.
325 case "$with_dot" in
326 maybe)
327     AC_CHECK_PROGS([DOT], [dot])
328     AS_IF([test "x$DOT" = "x"], [HAVE_DOT="no"], [HAVE_DOT="yes"])
329     ;;
330 yes)
331     HAVE_DOT="yes"
332     ;;
333 no)
334     HAVE_DOT="no"
335     ;;
336 *)
337     HAVE_DOT="yes"
338     DOT_PATH=$with_dot
339 esac
340 AC_SUBST(HAVE_DOT)
341 AC_SUBST(DOT_PATH)
342
343 dnl Checks for UNIX variants.
344 AC_ISC_POSIX
345
346 dnl Various compiler setup.
347 AC_TYPE_PID_T
348 AC_TYPE_SIZE_T
349
350 dnl Checks for programs.
351 AC_PROG_INSTALL
352 AC_PROG_LN_S
353 AC_PROG_RANLIB
354 AC_PROG_YACC
355 AM_PROG_LEX
356 dnl if we are flex, be lex-compatible
357 OPENAFS_LEX_IS_FLEX([AC_SUBST([LEX], ["$LEX -l"])])
358
359 OPENAFS_FORCE_ABS_INSTALL
360 OPENAFS_CHECK_BIGENDIAN
361 OPENAFS_PRINTF_TAKES_Z_LEN
362
363 AC_MSG_CHECKING(your OS)
364 system=$host
365 case $system in
366         *-linux*)
367
368                 MKAFS_OSTYPE=LINUX
369                 if test "x$enable_redhat_buildsys" = "xyes"; then
370                  AC_DEFINE(ENABLE_REDHAT_BUILDSYS, 1, [define if you have redhat buildsystem])
371                 fi
372                 if test "x$enable_kernel_module" = "xyes"; then
373                  if test "x$with_linux_kernel_headers" != "x"; then
374                    LINUX_KERNEL_PATH="$with_linux_kernel_headers"
375                  else
376                    for utsdir in "/lib/modules/`uname -r`/build" \
377                                  "/lib/modules/`uname -r`/source" \
378                                  "/usr/src/linux-2.4" \
379                                  "/usr/src/linux"; do
380                      LINUX_KERNEL_PATH="$utsdir"
381                      for utsfile in "include/generated/utsrelease.h" \
382                                     "include/linux/utsrelease.h" \
383                                     "include/linux/version.h" \
384                                     "include/linux/version-up.h"; do
385                        if grep "UTS_RELEASE" "$utsdir/$utsfile" >/dev/null 2>&1; then
386                          break 2
387                        fi
388                      done
389                    done
390                  fi
391                  if test "x$with_linux_kernel_build" != "x"; then
392                          LINUX_KERNEL_BUILD="$with_linux_kernel_build"
393                  else
394                    LINUX_KERNEL_BUILD=$LINUX_KERNEL_PATH
395                  fi
396                  if test -f "$LINUX_KERNEL_BUILD/include/generated/utsrelease.h"; then
397                    linux_kvers=`fgrep UTS_RELEASE $LINUX_KERNEL_BUILD/include/generated/utsrelease.h |awk 'BEGIN { FS="\"" } { print $[]2 }'|tail -n 1`
398                    LINUX_VERSION="$linux_kvers"
399                  else
400                    if test -f "$LINUX_KERNEL_BUILD/include/linux/utsrelease.h"; then
401                      linux_kvers=`fgrep UTS_RELEASE $LINUX_KERNEL_BUILD/include/linux/utsrelease.h |awk 'BEGIN { FS="\"" } { print $[]2 }'|tail -n 1`
402                      LINUX_VERSION="$linux_kvers"
403                    else
404                      if test -f "$LINUX_KERNEL_BUILD/include/linux/version.h"; then
405                        linux_kvers=`fgrep UTS_RELEASE $LINUX_KERNEL_BUILD/include/linux/version.h |awk 'BEGIN { FS="\"" } { print $[]2 }'|tail -n 1`
406                        if test "x$linux_kvers" = "x"; then
407                          if test -f "$LINUX_KERNEL_BUILD/include/linux/version-up.h"; then
408                            linux_kvers=`fgrep UTS_RELEASE $LINUX_KERNEL_BUILD/include/linux/version-up.h |awk 'BEGIN { FS="\"" } { print $[]2 }'|tail -n 1`
409                            if test "x$linux_kvers" = "x"; then
410                              AC_MSG_ERROR(Linux headers lack version definition [2])
411                              exit 1
412                            else
413                              LINUX_VERSION="$linux_kvers"
414                            fi
415                          else
416                            AC_MSG_ERROR(Linux headers lack version definition)
417                            exit 1
418                          fi
419                        else
420                          LINUX_VERSION="$linux_kvers"
421                        fi
422                      else
423                        enable_kernel_module="no"
424                      fi
425                    fi
426                  fi
427                  if test ! -f "$LINUX_KERNEL_BUILD/include/generated/autoconf.h" &&
428                     test ! -f "$LINUX_KERNEL_BUILD/include/linux/autoconf.h"; then
429                      enable_kernel_module="no"
430                  fi
431                  if test "x$enable_kernel_module" = "xno"; then
432                   if test "x$with_linux_kernel_headers" != "x"; then
433                    AC_MSG_ERROR(No usable linux headers found at $LINUX_KERNEL_PATH)
434                    exit 1
435                   else
436                    AC_MSG_WARN(No usable linux headers found at $LINUX_KERNEL_PATH so disabling kernel module)
437                   fi
438                  fi
439                  dnl do we need to determine SUBARCH from autoconf.h
440                  SUBARCH=default
441                 fi
442                 AC_MSG_RESULT(linux)
443                 GUESS_LINUX_VERSION=
444                 if test "x$enable_kernel_module" = "xyes"; then
445                  GUESS_LINUX_VERSION=${LINUX_VERSION}
446                 else
447                  GUESS_LINUX_VERSION=`uname -r`
448                 fi
449                 case "$GUESS_LINUX_VERSION" in
450                   2.2.*) AFS_SYSKVERS=22 ;;
451                   2.4.*) AFS_SYSKVERS=24 ;;
452                   [2.6.* | [3-9]* | [1-2][0-9]*]) AFS_SYSKVERS=26 ;;
453                   *) AC_MSG_ERROR(Couldn't guess your Linux version [2]) ;;
454                 esac
455                 ;;
456         *-solaris*)
457                 MKAFS_OSTYPE=SOLARIS
458                 AC_MSG_RESULT(sun4)
459                 AC_PATH_PROG(SOLARISCC, [cc], ,
460                     [/opt/SUNWspro/bin:/opt/SunStudioExpress/bin:/opt/solarisstudio12.3/bin:/opt/solstudio12.2/bin:/opt/sunstudio12.1/bin])
461                 if test "x$SOLARISCC" = "x" ; then
462                     AC_MSG_FAILURE(Could not find the solaris cc program.  Please define the environment variable SOLARISCC to specify the path.)
463                 fi
464                 SOLARIS_UFSVFS_HAS_DQRWLOCK
465                 SOLARIS_FS_HAS_FS_ROLLED
466                 SOLARIS_SOLOOKUP_TAKES_SOCKPARAMS
467                 SOLARIS_HAVE_VN_RENAMEPATH
468                 ;;
469         *-sunos*)
470                 MKAFS_OSTYPE=SUNOS
471                 enable_kernel_module=no
472                 AC_MSG_RESULT(sun4)
473                 ;;
474         *-hpux*)
475                 MKAFS_OSTYPE=HPUX
476                 AC_MSG_RESULT(hp_ux)
477                 if test -f "/usr/old/usr/include/ndir.h"; then
478                  AC_DEFINE(HAVE_USR_OLD_USR_INCLUDE_NDIR_H, 1, [define if you have old ndir.h])
479                 fi
480                 ;;
481         *-irix*)
482                 if test -d /usr/include/sys/SN/SN1; then
483                  IRIX_BUILD_IP35="IP35"
484                 fi
485                 MKAFS_OSTYPE=IRIX
486                 AC_MSG_RESULT(sgi)
487                 ;;
488         *-aix*)
489                 MKAFS_OSTYPE=AIX
490                 AC_MSG_RESULT(rs_aix)
491                 ;;
492         arm-*-darwin*)
493                 MKAFS_OSTYPE=DARWIN
494                 AC_MSG_RESULT(arm_darwin)
495                 ;;
496         powerpc-*-darwin*)
497                 MKAFS_OSTYPE=DARWIN
498                 AC_MSG_RESULT(ppc_darwin)
499                 ;;
500         i386-*-darwin*)
501                 MKAFS_OSTYPE=DARWIN
502                 AC_MSG_RESULT(x86_darwin)
503                 ;;
504         x86_64-*-darwin*)
505                 MKAFS_OSTYPE=DARWIN
506                 AC_MSG_RESULT(x86_darwin)
507                 ;;
508         i386-*-freebsd*)
509                 MKAFS_OSTYPE=FBSD
510                 AC_MSG_RESULT(i386_fbsd)
511                 ;;
512         x86_64-*-freebsd*)
513                 MKAFS_OSTYPE=FBSD
514                 AC_MSG_RESULT(amd64_fbsd)
515                 ;;
516         *-netbsd*)
517                 MKAFS_OSTYPE=NBSD
518                 AC_MSG_RESULT(nbsd)
519                 ;;
520         x86_64-*-openbsd*)
521                 MKAFS_OSTYPE=OBSD
522                 AC_MSG_RESULT(amd64_obsd)
523                 ;;
524         i386-*-openbsd*)
525                 MKAFS_OSTYPE=OBSD
526                 AC_MSG_RESULT(i386_obsd)
527                 ;;
528         *-dragonfly*)
529                 MKAFS_OSTYPE=DFBSD
530                 AC_MSG_RESULT(i386_dfbsd)
531                 ;;
532         *)
533                 AC_MSG_RESULT($system)
534                 ;;
535 esac
536
537 if test "x$with_afs_sysname" != "x"; then
538         AFS_SYSNAME="$with_afs_sysname"
539 else
540         AC_MSG_CHECKING(your AFS sysname)
541         case $host in
542                 i?86-*-openbsd?.?)
543                         v=${host#*openbsd}
544                         vM=${v%.*}
545                         vm=${v#*.}
546                         AFS_SYSNAME="i386_obsd${vM}${vm}"
547                         ;;
548                 sparc64-*-openbsd?.?)
549                         v=${host#*openbsd}
550                         vM=${v%.*}
551                         vm=${v#*.}
552                         AFS_SYSNAME="sparc64_obsd${vM}${vm}"
553                         ;;
554                 x86_64-*-openbsd?.?)
555                         v=${host#*openbsd}
556                         vM=${v%.*}
557                         vm=${v#*.}
558                         AFS_SYSNAME="amd64_obsd${vM}${vm}"
559                         ;;
560                 i?86-*-freebsd*.*)
561                         v=${host#*freebsd}
562                         vM=${v%.*}
563                         vm=${v#*.}
564                         AFS_SYSNAME="i386_fbsd_${vM}${vm}"
565                         ;;
566                 x86_64-*-freebsd*.*)
567                         v=${host#*freebsd}
568                         vM=${v%.*}
569                         vm=${v#*.}
570                         AFS_SYSNAME="amd64_fbsd_${vM}${vm}"
571                         ;;
572                 i386-*-dragonfly?.*)
573                         v=${host#*dragonfly}
574                         vM=${v%.*}
575                         vm=${v#*.}
576                         AFS_SYSNAME="i386_dfbsd_${vM}${vm}"
577                         ;;
578                 i?86-*-netbsd*1.6[[M-Z]]*)
579                         AFS_SYSNAME="i386_nbsd20"
580                         ;;
581                 powerpc-*-netbsd*1.6[[M-Z]]*)
582                         AFS_SYSNAME="ppc_nbsd20"
583                         ;;
584                 *-*-netbsd*)
585                         arch=${host%%-unknown*}
586                         arch=$(echo $arch |sed -e 's/x86_64/amd64/g' \
587                                                -e 's/powerpc/ppc/g')
588                         v=${host#*netbsd}
589                         v=${v#*aout}
590                         v=${v#*ecoff}
591                         v=${v#*elf}
592                         vM=${v%%.*}
593                         vM=${vM%.*}
594                         v=${v#*.}
595                         vm=${v%%.*}
596                         vm=${vm%.*}
597                         vm=${vm%%[[_A-Z]]*}
598                         if test $vm -eq 99 ; then
599                                 vM=$((vM+1))
600                         fi
601                         if test $vM -gt 1 ; then
602                                 vm=0
603                         fi
604                         AFS_SYSNAME="${arch}_nbsd${vM}${vm}"
605                         ;;
606                 hppa*-hp-hpux11.0*)
607                         AFS_SYSNAME="hp_ux110"
608                         ;;
609                 hppa*-hp-hpux11.11)
610                         AFS_SYSNAME="hp_ux11i"
611                         ;;
612                 hppa*-hp-hpux11.23)
613                         AFS_SYSNAME="hp_ux1123"
614                         ;;
615                 ia64-hp-hpux11.22)
616                         AFS_SYSNAME="ia64_hpux1122"
617                         ;;
618                 ia64-hp-hpux*)
619                         AFS_SYSNAME="ia64_hpux1123"
620                         ;;
621                 hppa*-hp-hpux10*)
622                         AFS_SYSNAME="hp_ux102"
623                         ;;
624                 powerpc-apple-darwin7*)
625                         AFS_SYSNAME="ppc_darwin_70"
626                         OSXSDK="macosx10.3"
627                         ;;
628                 powerpc-apple-darwin8.*)
629                         AFS_SYSNAME="ppc_darwin_80"
630                         OSXSDK="macosx10.4"
631                         ;;
632                 i386-apple-darwin8.*)
633                         AFS_SYSNAME="x86_darwin_80"
634                         OSXSDK="macosx10.4"
635                         ;;
636                 powerpc-apple-darwin9.*)
637                         AFS_SYSNAME="ppc_darwin_90"
638                         OSXSDK="macosx10.5"
639                         ;;
640                 i386-apple-darwin9.*)
641                         AFS_SYSNAME="x86_darwin_90"
642                         OSXSDK="macosx10.5"
643                         ;;
644                 i?86-apple-darwin10.*)
645                         AFS_SYSNAME="x86_darwin_100"
646                         OSXSDK="macosx10.6"
647                         ;;
648                 x86_64-apple-darwin10.*)
649                         AFS_SYSNAME="x86_darwin_100"
650                         OSXSDK="macosx10.6"
651                         ;;
652                 arm-apple-darwin10.*)
653                         AFS_SYSNAME="arm_darwin_100"
654                         OSXSDK="iphoneos4.0"
655                         ;;
656                 x86_64-apple-darwin11.*)
657                         AFS_SYSNAME="x86_darwin_110"
658                         OSXSDK="macosx10.7"
659                         ;;
660                 i?86-apple-darwin11.*)
661                         AFS_SYSNAME="x86_darwin_110"
662                         OSXSDK="macosx10.7"
663                         ;;
664                 x86_64-apple-darwin12.*)
665                         AFS_SYSNAME="x86_darwin_120"
666                         OSXSDK="macosx10.8"
667                         ;;
668                 i?86-apple-darwin12.*)
669                         AFS_SYSNAME="x86_darwin_120"
670                         OSXSDK="macosx10.8"
671                         ;;
672                 x86_64-apple-darwin13.*)
673                         AFS_SYSNAME="x86_darwin_130"
674                         OSXSDK="macosx10.9"
675                         ;;
676                 i?86-apple-darwin13.*)
677                         AFS_SYSNAME="x86_darwin_130"
678                         OSXSDK="macosx10.9"
679                         ;;
680                 x86_64-apple-darwin14.*)
681                         AFS_SYSNAME="x86_darwin_140"
682                         OSXSDK="macosx10.10"
683                         ;;
684                 i?86-apple-darwin14.*)
685                         AFS_SYSNAME="x86_darwin_140"
686                         OSXSDK="macosx10.10"
687                         ;;
688                 x86_64-apple-darwin15.*)
689                         AFS_SYSNAME="x86_darwin_150"
690                         OSXSDK="macosx10.11"
691                         ;;
692                 i?86-apple-darwin15.*)
693                         AFS_SYSNAME="x86_darwin_150"
694                         OSXSDK="macosx10.11"
695                         ;;
696                 sparc-sun-solaris2.8)
697                         AFS_SYSNAME="sun4x_58"
698                         ;;
699                 sparc-sun-solaris2.9)
700                         AFS_SYSNAME="sun4x_59"
701                         ;;
702                 sparc-sun-solaris2.10)
703                         AFS_SYSNAME="sun4x_510"
704                         ;;
705                 sparc-sun-solaris2.11)
706                         AFS_SYSNAME="sun4x_511"
707                         ;;
708                 i386-pc-solaris2.8)
709                         AFS_SYSNAME="sunx86_58"
710                         ;;
711                 i386-pc-solaris2.9)
712                         AFS_SYSNAME="sunx86_59"
713                         ;;
714                 i386-pc-solaris2.10)
715                         AFS_SYSNAME="sunx86_510"
716                         ;;
717                 i386-pc-solaris2.11)
718                         AFS_SYSNAME="sunx86_511"
719                         ;;
720                 alpha*-dec-osf4.0*)
721                         AFS_SYSNAME="alpha_dux40"
722                         ;;
723                 alpha*-dec-osf5.0*)
724                         AFS_SYSNAME="alpha_dux50"
725                         ;;
726                 alpha*-dec-osf5.1*)
727                         AFS_SYSNAME="alpha_dux51"
728                         ;;
729                 mips-sgi-irix6.5)
730                         AFS_SYSNAME="sgi_65"
731                         enable_pam="no"
732                         ;;
733                 ia64-*-linux*)
734                         AFS_SYSNAME="ia64_linuxXX"
735                         ;;
736                 powerpc-*-linux*)
737                         AFS_SYSNAME="`/bin/arch`_linuxXX"
738                         ;;
739                 powerpc64-*-linux*)
740                         AFS_SYSNAME="ppc64_linuxXX"
741                         ;;
742                 alpha*-linux*)
743                         AFS_SYSNAME="alpha_linux_XX"
744                         ;;
745                 s390-*-linux*)
746                         AFS_SYSNAME="s390_linuxXX"
747                         ;;
748                 s390x-*-linux*)
749                         AFS_SYSNAME="s390x_linuxXX"
750                         ;;
751                 sparc-*-linux*)
752                         AFS_SYSNAME="`/bin/arch`_linuxXX"
753                         ;;
754                 sparc64-*-linux*)
755                         AFS_SYSNAME="sparc64_linuxXX"
756                         ;;
757                 i?86-*-linux*)
758                         AFS_SYSNAME="i386_linuxXX"
759                         ;;
760                 arm*-linux*)
761                         AFS_SYSNAME="arm_linuxXX"
762                         ;;
763                 parisc-*-linux-gnu|hppa-*-linux-gnu)
764                         AFS_SYSNAME="parisc_linuxXX"
765                         enable_pam="no"
766                         ;;
767                 power*-ibm-aix4.2*)
768                         AFS_SYSNAME="rs_aix42"
769                         enable_pam="no"
770                         ;;
771                 power*-ibm-aix4.3*)
772                         AFS_SYSNAME="rs_aix42"
773                         enable_pam="no"
774                         ;;
775                 power*-ibm-aix5.1*)
776                         AFS_SYSNAME="rs_aix51"
777                         enable_pam="no"
778                         ;;
779                 power*-ibm-aix5.2*)
780                         AFS_SYSNAME="rs_aix52"
781                         enable_pam="no"
782                         ;;
783                 power*-ibm-aix5.3*)
784                         AFS_SYSNAME="rs_aix53"
785                         enable_pam="no"
786                         ;;
787                 power*-ibm-aix6.1*)
788                         AFS_SYSNAME="rs_aix61"
789                         enable_pam="no"
790                         ;;
791                 x86_64-*-linux-gnu)
792                         AFS_SYSNAME="amd64_linuxXX"
793                         enable_pam="yes"
794                         ;;
795                 *)
796                         AC_MSG_ERROR(An AFS sysname is required)
797                         exit 1
798                         ;;
799         esac
800         case $AFS_SYSNAME in
801                 *_linux* | *_umlinux*)
802                         if test "x${AFS_SYSKVERS}" = "x"; then
803                          AC_MSG_ERROR(Couldn't guess your Linux version. Please use the --with-afs-sysname option to configure an AFS sysname.)
804                         fi
805                         if test "x${AFS_SYSKVERS}" = "x24" ||
806                                 test "x${AFS_SYSKVERS}" = "x22"; then
807                             AC_MSG_ERROR([Linux 2.4.x and older are no longer supported by OpenAFS.  Please use an OpenAFS 1.6.x release on those systems.])
808                         fi
809                         _AFS_SYSNAME=`echo $AFS_SYSNAME|sed s/XX\$/$AFS_SYSKVERS/`
810                         AFS_SYSNAME="$_AFS_SYSNAME"
811                         AC_TRY_KBUILD(
812                          [],
813                          [#ifndef CONFIG_USERMODE
814                           #error not UML
815                           #endif],
816                          ac_cv_linux_is_uml=yes,)
817                         if test "${ac_cv_linux_is_uml}" = yes; then
818                          _AFS_SYSNAME=`echo $AFS_SYSNAME|sed s/linux/umlinux/`
819                         fi
820                         AFS_SYSNAME="$_AFS_SYSNAME"
821                         ;;
822         esac
823         AC_MSG_RESULT($AFS_SYSNAME)
824 fi
825
826 case $AFS_SYSNAME in
827         *_darwin*)
828                 AC_CHECK_HEADERS(crt_externs.h)
829                 DARWIN_PLIST=src/libafs/afs.${AFS_SYSNAME}.plist
830                 DARWIN_INFOFILE=afs.${AFS_SYSNAME}.plist
831                 AC_SUBST(OSXSDK)
832                 ;;
833 esac
834
835 dnl Some hosts have a separate common param file they should include.  Figure
836 dnl out if we're on one of them now that we know the sysname.
837 case $AFS_SYSNAME in
838     *_nbsd15)   AFS_PARAM_COMMON=param.nbsd15.h  ;;
839     *_nbsd16)   AFS_PARAM_COMMON=param.nbsd16.h  ;;
840     *_nbsd20)   AFS_PARAM_COMMON=param.nbsd20.h  ;;
841     *_nbsd21)   AFS_PARAM_COMMON=param.nbsd21.h  ;;
842     *_nbsd30)   AFS_PARAM_COMMON=param.nbsd30.h  ;;
843     *_nbsd40)   AFS_PARAM_COMMON=param.nbsd40.h  ;;
844     *_nbsd50)   AFS_PARAM_COMMON=param.nbsd50.h  ;;
845     *_nbsd60)   AFS_PARAM_COMMON=param.nbsd60.h  ;;
846     *_nbsd70)   AFS_PARAM_COMMON=param.nbsd70.h  ;;
847     *_obsd31)   AFS_PARAM_COMMON=param.obsd31.h  ;;
848     *_obsd32)   AFS_PARAM_COMMON=param.obsd32.h  ;;
849     *_obsd33)   AFS_PARAM_COMMON=param.obsd33.h  ;;
850     *_obsd34)   AFS_PARAM_COMMON=param.obsd34.h  ;;
851     *_obsd35)   AFS_PARAM_COMMON=param.obsd35.h  ;;
852     *_obsd36)   AFS_PARAM_COMMON=param.obsd36.h  ;;
853     *_obsd37)   AFS_PARAM_COMMON=param.obsd37.h  ;;
854     *_obsd38)   AFS_PARAM_COMMON=param.obsd38.h  ;;
855     *_obsd39)   AFS_PARAM_COMMON=param.obsd39.h  ;;
856     *_obsd40)   AFS_PARAM_COMMON=param.obsd40.h  ;;
857     *_obsd41)   AFS_PARAM_COMMON=param.obsd41.h  ;;
858     *_obsd42)   AFS_PARAM_COMMON=param.obsd42.h  ;;
859     *_obsd43)   AFS_PARAM_COMMON=param.obsd43.h  ;;
860     *_obsd44)   AFS_PARAM_COMMON=param.obsd44.h  ;;
861     *_obsd45)   AFS_PARAM_COMMON=param.obsd45.h  ;;
862     *_obsd46)   AFS_PARAM_COMMON=param.obsd46.h  ;;
863     *_obsd47)   AFS_PARAM_COMMON=param.obsd47.h  ;;
864     *_obsd48)   AFS_PARAM_COMMON=param.obsd48.h  ;;
865     *_obsd49)   AFS_PARAM_COMMON=param.obsd49.h  ;;
866     *_obsd50)   AFS_PARAM_COMMON=param.obsd50.h  ;;
867     *_obsd51)   AFS_PARAM_COMMON=param.obsd51.h  ;;
868     *_obsd52)   AFS_PARAM_COMMON=param.obsd52.h  ;;
869     *_obsd53)   AFS_PARAM_COMMON=param.obsd53.h  ;;
870     *_obsd54)   AFS_PARAM_COMMON=param.obsd54.h  ;;
871     *_linux26)  AFS_PARAM_COMMON=param.linux26.h ;;
872 # Linux alpha adds an extra underscore for no good reason.
873     *_linux_26) AFS_PARAM_COMMON=param.linux26.h ;;
874     *_fbsd_*)   AFS_PARAM_COMMON=param.generic_fbsd.h ;;
875 esac
876
877 OPENAFS_OSCONF
878
879 case $AFS_SYSNAME in *_linux* | *_umlinux*)
880
881                 # Add (sub-) architecture-specific paths needed by conftests
882                 case $AFS_SYSNAME  in
883                         *_umlinux26)
884                                 UMLINUX26_FLAGS="-I$LINUX_KERNEL_PATH/arch/um/include"
885                                 UMLINUX26_FLAGS="$UMLINUX26_FLAGS -I$LINUX_KERNEL_PATH/arch/um/kernel/tt/include"
886                                 UMLINUX26_FLAGS="$UMLINUX26_FLAGS -I$LINUX_KERNEL_PATH/arch/um/kernel/skas/include"
887                                 CPPFLAGS="$CPPFLAGS $UMLINUX26_FLAGS"
888                 esac
889
890                 if test "x$enable_kernel_module" = "xyes"; then
891                  if test "x$enable_debug_kernel" = "xno"; then
892                         LINUX_GCC_KOPTS="$LINUX_GCC_KOPTS -fomit-frame-pointer"
893                  fi
894                  OPENAFS_GCC_SUPPORTS_MARCH
895                  AC_SUBST(P5PLUS_KOPTS)
896                  OPENAFS_GCC_NEEDS_NO_STRENGTH_REDUCE
897                  OPENAFS_GCC_NEEDS_NO_STRICT_ALIASING
898                  OPENAFS_GCC_SUPPORTS_NO_COMMON
899                  OPENAFS_GCC_SUPPORTS_PIPE
900                  AC_SUBST(LINUX_GCC_KOPTS)
901
902                  dnl Setup the kernel build environment
903                  LINUX_KBUILD_USES_EXTRA_CFLAGS
904                  LINUX_KERNEL_COMPILE_WORKS
905
906                  dnl Operation signature checks
907                  AC_CHECK_LINUX_OPERATION([inode_operations], [follow_link], [no_nameidata],
908                                           [#include <linux/fs.h>],
909                                           [const char *],
910                                           [struct dentry *dentry, void **link_data])
911                  AC_CHECK_LINUX_OPERATION([inode_operations], [put_link], [no_nameidata],
912                                           [#include <linux/fs.h>],
913                                           [void],
914                                           [struct inode *inode, void *link_data])
915
916                  dnl Check for header files
917                  AC_CHECK_LINUX_HEADER([config.h])
918                  AC_CHECK_LINUX_HEADER([completion.h])
919                  AC_CHECK_LINUX_HEADER([exportfs.h])
920                  AC_CHECK_LINUX_HEADER([freezer.h])
921                  AC_CHECK_LINUX_HEADER([key-type.h])
922                  AC_CHECK_LINUX_HEADER([semaphore.h])
923                  AC_CHECK_LINUX_HEADER([seq_file.h])
924
925                  dnl Type existence checks
926                  AC_CHECK_LINUX_TYPE([struct vfs_path], [dcache.h])
927                  AC_CHECK_LINUX_TYPE([kuid_t], [uidgid.h])
928
929                  dnl Check for structure elements
930                  AC_CHECK_LINUX_STRUCT([address_space], [backing_dev_info], [fs.h])
931                  AC_CHECK_LINUX_STRUCT([address_space_operations],
932                                        [write_begin], [fs.h])
933                  AC_CHECK_LINUX_STRUCT([backing_dev_info], [name],
934                                        [backing-dev.h])
935                  AC_CHECK_LINUX_STRUCT([cred], [session_keyring], [cred.h])
936                  AC_CHECK_LINUX_STRUCT([ctl_table], [ctl_name], [sysctl.h])
937                  AC_CHECK_LINUX_STRUCT([dentry], [d_u.d_alias], [dcache.h])
938                  AC_CHECK_LINUX_STRUCT([dentry_operations], [d_automount], [dcache.h])
939                  AC_CHECK_LINUX_STRUCT([inode], [i_alloc_sem], [fs.h])
940                  AC_CHECK_LINUX_STRUCT([inode], [i_blkbits], [fs.h])
941                  AC_CHECK_LINUX_STRUCT([inode], [i_blksize], [fs.h])
942                  AC_CHECK_LINUX_STRUCT([inode], [i_mutex], [fs.h])
943                  AC_CHECK_LINUX_STRUCT([inode], [i_security], [fs.h])
944                  AC_CHECK_LINUX_STRUCT([file], [f_path], [fs.h])
945                  AC_CHECK_LINUX_STRUCT([file_operations], [flock], [fs.h])
946                  AC_CHECK_LINUX_STRUCT([file_operations], [iterate], [fs.h])
947                  AC_CHECK_LINUX_STRUCT([file_operations], [read_iter], [fs.h])
948                  AC_CHECK_LINUX_STRUCT([file_operations], [sendfile], [fs.h])
949                  AC_CHECK_LINUX_STRUCT([file_system_type], [mount], [fs.h])
950                  AC_CHECK_LINUX_STRUCT([inode_operations], [truncate], [fs.h])
951                  AC_CHECK_LINUX_STRUCT([key], [payload.value], [key.h])
952                  AC_CHECK_LINUX_STRUCT([key_type], [instantiate_prep], [key-type.h])
953                  AC_CHECK_LINUX_STRUCT([key_type], [match_preparse], [key-type.h])
954                  AC_CHECK_LINUX_STRUCT([key_type], [preparse], [key-type.h])
955                  AC_CHECK_LINUX_STRUCT([msghdr], [msg_iter], [socket.h])
956                  AC_CHECK_LINUX_STRUCT([nameidata], [path], [namei.h])
957                  AC_CHECK_LINUX_STRUCT([proc_dir_entry], [owner], [proc_fs.h])
958                  AC_CHECK_LINUX_STRUCT([super_block], [s_bdi], [fs.h])
959                  AC_CHECK_LINUX_STRUCT([super_block], [s_d_op], [fs.h])
960                  AC_CHECK_LINUX_STRUCT([super_operations], [alloc_inode],
961                                        [fs.h])
962                  AC_CHECK_LINUX_STRUCT([super_operations], [evict_inode],
963                                        [fs.h])
964                  AC_CHECK_LINUX_STRUCT([task_struct], [cred], [sched.h])
965                  AC_CHECK_LINUX_STRUCT([task_struct], [exit_state], [sched.h])
966                  AC_CHECK_LINUX_STRUCT([task_struct], [parent], [sched.h])
967                  AC_CHECK_LINUX_STRUCT([task_struct], [real_parent], [sched.h])
968                  AC_CHECK_LINUX_STRUCT([task_struct], [rlim], [sched.h])
969                  AC_CHECK_LINUX_STRUCT([task_struct], [sig], [sched.h])
970                  AC_CHECK_LINUX_STRUCT([task_struct], [sighand], [sched.h])
971                  AC_CHECK_LINUX_STRUCT([task_struct], [sigmask_lock], [sched.h])
972                  AC_CHECK_LINUX_STRUCT([task_struct], [tgid], [sched.h])
973                  AC_CHECK_LINUX_STRUCT([task_struct], [thread_info], [sched.h])
974                  AC_CHECK_LINUX_STRUCT([task_struct], [total_link_count], [sched.h])
975                  LINUX_SCHED_STRUCT_TASK_STRUCT_HAS_SIGNAL_RLIM
976
977                  dnl Check for typed structure elements
978                  AC_CHECK_LINUX_TYPED_STRUCT([read_descriptor_t],
979                                              [buf], [fs.h])
980
981                  dnl Function existence checks
982
983                  AC_CHECK_LINUX_FUNC([__vfs_read],
984                                      [#include <linux/fs.h>],
985                                      [__vfs_read(NULL, NULL, 0, NULL);])
986                  AC_CHECK_LINUX_FUNC([bdi_init],
987                                      [#include <linux/backing-dev.h>],
988                                      [bdi_init(NULL);])
989                  AC_CHECK_LINUX_FUNC([PageChecked],
990                                      [#include <linux/mm.h>
991 #include <linux/page-flags.h>],
992                                      [struct page *_page;
993                                       int bchecked = PageChecked(_page);])
994                  AC_CHECK_LINUX_FUNC([PageFsMisc],
995                                      [#include <linux/mm.h>
996 #include <linux/page-flags.h>],
997                                      [struct page *_page;
998                                       int bchecked = PageFsMisc(_page);])
999                  AC_CHECK_LINUX_FUNC([clear_inode],
1000                                      [#include <linux/fs.h>],
1001                                      [clear_inode(NULL);])
1002                  AC_CHECK_LINUX_FUNC([current_kernel_time],
1003                                      [#include <linux/time.h>],
1004                                      [struct timespec s;
1005                                       s = current_kernel_time();])
1006                  AC_CHECK_LINUX_FUNC([d_alloc_anon],
1007                                      [#include <linux/fs.h>],
1008                                      [d_alloc_anon(NULL);])
1009                  AC_CHECK_LINUX_FUNC([d_count],
1010                                      [#include <linux/dcache.h>],
1011                                      [d_count(NULL);])
1012                  AC_CHECK_LINUX_FUNC([d_make_root],
1013                                      [#include <linux/fs.h>],
1014                                      [d_make_root(NULL);])
1015                  AC_CHECK_LINUX_FUNC([do_sync_read],
1016                                      [#include <linux/fs.h>],
1017                                      [do_sync_read(NULL, NULL, 0, NULL);])
1018                  AC_CHECK_LINUX_FUNC([find_task_by_pid],
1019                                      [#include <linux/sched.h>],
1020                                      [pid_t p; find_task_by_pid(p);])
1021                  AC_CHECK_LINUX_FUNC([generic_file_aio_read],
1022                                      [#include <linux/fs.h>],
1023                                      [generic_file_aio_read(NULL,NULL,0,0);])
1024                  AC_CHECK_LINUX_FUNC([grab_cache_page_write_begin],
1025                                      [#include <linux/pagemap.h>],
1026                                      [grab_cache_page_write_begin(NULL, 0, 0);])
1027                  AC_CHECK_LINUX_FUNC([hlist_unhashed],
1028                                      [#include <linux/list.h>],
1029                                      [hlist_unhashed(0);])
1030                  AC_CHECK_LINUX_FUNC([ihold],
1031                                      [#include <linux/fs.h>],
1032                                      [ihold(NULL);])
1033                  AC_CHECK_LINUX_FUNC([i_size_read],
1034                                      [#include <linux/fs.h>],
1035                                      [i_size_read(NULL);])
1036                  AC_CHECK_LINUX_FUNC([inode_setattr],
1037                                      [#include <linux/fs.h>],
1038                                      [inode_setattr(NULL, NULL);])
1039                  AC_CHECK_LINUX_FUNC([iter_file_splice_write],
1040                                      [#include <linux/fs.h>],
1041                                      [iter_file_splice_write(NULL,NULL,NULL,0,0);])
1042                  AC_CHECK_LINUX_FUNC([kernel_setsockopt],
1043                                      [#include <linux/net.h>],
1044                                      [kernel_setsockopt(NULL, 0, 0, NULL, 0);])
1045                  AC_CHECK_LINUX_FUNC([locks_lock_file_wait],
1046                                      [#include <linux/fs.h>],
1047                                      [locks_lock_file_wait(NULL, NULL);])
1048                  AC_CHECK_LINUX_FUNC([page_follow_link],
1049                                      [#include <linux/fs.h>],
1050                                      [page_follow_link(0,0);])
1051                  AC_CHECK_LINUX_FUNC([page_offset],
1052                                      [#include <linux/pagemap.h>],
1053                                      [page_offset(NULL);])
1054                  AC_CHECK_LINUX_FUNC([pagevec_lru_add_file],
1055                                      [#include <linux/pagevec.h>],
1056                                      [__pagevec_lru_add_file(NULL);])
1057                  AC_CHECK_LINUX_FUNC([path_lookup],
1058                                      [#include <linux/fs.h>
1059                                       #include <linux/namei.h>],
1060                                      [path_lookup(NULL, 0, NULL);])
1061                  AC_CHECK_LINUX_FUNC([proc_create],
1062                                      [#include <linux/proc_fs.h>],
1063                                      [proc_create(NULL, 0, NULL, NULL);])
1064                  AC_CHECK_LINUX_FUNC([rcu_read_lock],
1065                                      [#include <linux/rcupdate.h>],
1066                                      [rcu_read_lock();])
1067                  AC_CHECK_LINUX_FUNC([set_nlink],
1068                                      [#include <linux/fs.h>],
1069                                      [set_nlink(NULL, 1);])
1070                  AC_CHECK_LINUX_FUNC([sock_create_kern],
1071                                      [#include <linux/net.h>],
1072                                      [sock_create_kern(0, 0, 0, NULL);])
1073                  AC_CHECK_LINUX_FUNC([sock_create_kern_ns],
1074                                      [#include <linux/net.h>],
1075                                      [sock_create_kern(NULL, 0, 0, 0, NULL);])
1076                  AC_CHECK_LINUX_FUNC([splice_direct_to_actor],
1077                                      [#include <linux/splice.h>],
1078                                      [splice_direct_to_actor(NULL,NULL,NULL);])
1079                  AC_CHECK_LINUX_FUNC([default_file_splice_read],
1080                                      [#include <linux/fs.h>],
1081                                      [default_file_splice_read(NULL,NULL,NULL, 0, 0);])
1082                  AC_CHECK_LINUX_FUNC([svc_addr_in],
1083                                      [#include <linux/sunrpc/svc.h>],
1084                                      [svc_addr_in(NULL);])
1085                  AC_CHECK_LINUX_FUNC([zero_user_segments],
1086                                      [#include <linux/highmem.h>],
1087                                      [zero_user_segments(NULL, 0, 0, 0, 0);])
1088                  AC_CHECK_LINUX_FUNC([noop_fsync],
1089                                      [#include <linux/fs.h>],
1090                                      [void *address = &noop_fsync; printk("%p\n", address)];)
1091                  AC_CHECK_LINUX_FUNC([kthread_run],
1092                                      [#include <linux/kernel.h>
1093                                       #include <linux/kthread.h>],
1094                                      [kthread_run(NULL, NULL, "test");])
1095
1096                  dnl Consequences - things which get set as a result of the
1097                  dnl                above tests
1098                  AS_IF([test "x$ac_cv_linux_func_d_alloc_anon" = "xno"],
1099                        [AC_DEFINE([AFS_NONFSTRANS], 1,
1100                                   [define to disable the nfs translator])])
1101
1102                  dnl Assorted more complex tests
1103                  LINUX_AIO_NONVECTOR
1104                  LINUX_EXPORTS_PROC_ROOT_FS
1105                  LINUX_KMEM_CACHE_INIT
1106                  LINUX_HAVE_KMEM_CACHE_T
1107                  LINUX_KMEM_CACHE_CREATE_TAKES_DTOR
1108                  LINUX_KMEM_CACHE_CREATE_CTOR_TAKES_VOID
1109                  LINUX_D_PATH_TAKES_STRUCT_PATH
1110                  LINUX_NEW_EXPORT_OPS
1111                  LINUX_INODE_SETATTR_RETURN_TYPE
1112                  LINUX_IOP_I_CREATE_TAKES_NAMEIDATA
1113                  LINUX_IOP_I_LOOKUP_TAKES_NAMEIDATA
1114                  LINUX_IOP_I_PERMISSION_TAKES_FLAGS
1115                  LINUX_IOP_I_PERMISSION_TAKES_NAMEIDATA
1116                  LINUX_IOP_I_PUT_LINK_TAKES_COOKIE
1117                  LINUX_DOP_D_DELETE_TAKES_CONST
1118                  LINUX_DOP_D_REVALIDATE_TAKES_NAMEIDATA
1119                  LINUX_FOP_F_FLUSH_TAKES_FL_OWNER_T
1120                  LINUX_FOP_F_FSYNC_TAKES_DENTRY
1121                  LINUX_FOP_F_FSYNC_TAKES_RANGE
1122                  LINUX_AOP_WRITEBACK_CONTROL
1123                  LINUX_FS_STRUCT_FOP_HAS_SPLICE
1124                  LINUX_KERNEL_POSIX_LOCK_FILE_WAIT_ARG
1125                  LINUX_POSIX_TEST_LOCK_RETURNS_CONFLICT
1126                  LINUX_POSIX_TEST_LOCK_CONFLICT_ARG
1127                  LINUX_KERNEL_SOCK_CREATE
1128                  LINUX_EXPORTS_KEY_TYPE_KEYRING
1129                  LINUX_NEED_RHCONFIG
1130                  LINUX_RECALC_SIGPENDING_ARG_TYPE
1131                  LINUX_EXPORTS_TASKLIST_LOCK
1132                  LINUX_GET_SB_HAS_STRUCT_VFSMOUNT
1133                  LINUX_STATFS_TAKES_DENTRY
1134                  LINUX_REFRIGERATOR
1135                  LINUX_HAVE_TRY_TO_FREEZE
1136                  LINUX_LINUX_KEYRING_SUPPORT
1137                  LINUX_KEY_ALLOC_NEEDS_STRUCT_TASK
1138                  LINUX_KEY_ALLOC_NEEDS_CRED
1139                  LINUX_INIT_WORK_HAS_DATA
1140                  LINUX_REGISTER_SYSCTL_TABLE_NOFLAG
1141                  LINUX_HAVE_DCACHE_LOCK
1142                  LINUX_D_COUNT_IS_INT
1143                  LINUX_IOP_MKDIR_TAKES_UMODE_T
1144                  LINUX_IOP_CREATE_TAKES_UMODE_T
1145                  LINUX_EXPORT_OP_ENCODE_FH_TAKES_INODES
1146                  LINUX_KMAP_ATOMIC_TAKES_NO_KM_TYPE
1147                  LINUX_DENTRY_OPEN_TAKES_PATH
1148                  LINUX_D_ALIAS_IS_HLIST
1149                  LINUX_HLIST_ITERATOR_NO_NODE
1150                  LINUX_IOP_I_CREATE_TAKES_BOOL
1151                  LINUX_DOP_D_REVALIDATE_TAKES_UNSIGNED
1152                  LINUX_IOP_LOOKUP_TAKES_UNSIGNED
1153                  LINUX_D_INVALIDATE_IS_VOID
1154
1155                  dnl If we are guaranteed that keyrings will work - that is
1156                  dnl  a) The kernel has keyrings enabled
1157                  dnl  b) The code is new enough to give us a key_type_keyring
1158                  dnl then we just disable syscall probing unless we've been
1159                  dnl told otherwise
1160
1161                  AS_IF([test "$enable_linux_syscall_probing" = "maybe"],
1162                    [AS_IF([test "$ac_cv_linux_keyring_support" = "yes" -a "$ac_cv_linux_exports_key_type_keyring" = "yes"],
1163                           [enable_linux_syscall_probing="no"],
1164                           [enable_linux_syscall_probing="yes"])
1165                  ])
1166
1167                  dnl Syscall probing needs a few tests of its own, and just
1168                  dnl won't work if the kernel doesn't export init_mm
1169                  AS_IF([test "$enable_linux_syscall_probing" = "yes"], [
1170                    LINUX_EXPORTS_INIT_MM
1171                    AS_IF([test "$ac_cv_linux_exports_init_mm" = "no"], [
1172                      AC_MSG_ERROR(
1173                        [Can't do syscall probing without exported init_mm])
1174                    ])
1175                    LINUX_EXPORTS_SYS_CHDIR
1176                    LINUX_EXPORTS_SYS_OPEN
1177                    AC_DEFINE(ENABLE_LINUX_SYSCALL_PROBING, 1,
1178                              [define to enable syscall table probes])
1179                  ])
1180
1181                  dnl Packaging and SMP build
1182                  if test "x$with_linux_kernel_packaging" != "xyes" ; then
1183                    LINUX_WHICH_MODULES
1184                  else
1185                    AC_SUBST(MPS,'SP')
1186                  fi
1187
1188                  dnl Syscall probing
1189                  if test "x$ac_cv_linux_config_modversions" = "xno" -o $AFS_SYSKVERS -ge 26; then
1190                    AS_IF([test "$enable_linux_syscall_probing" = "yes"], [
1191                      AC_MSG_WARN([Cannot determine sys_call_table status. assuming it isn't exported])
1192                    ])
1193                    ac_cv_linux_exports_sys_call_table=no
1194                    if test -f "$LINUX_KERNEL_PATH/include/asm/ia32_unistd.h"; then
1195                      ac_cv_linux_exports_ia32_sys_call_table=yes
1196                    fi
1197                  else
1198                    LINUX_EXPORTS_KALLSYMS_ADDRESS
1199                    LINUX_EXPORTS_KALLSYMS_SYMBOL
1200                    LINUX_EXPORTS_SYS_CALL_TABLE
1201                    LINUX_EXPORTS_IA32_SYS_CALL_TABLE
1202                    if test "x$ac_cv_linux_exports_sys_call_table" = "xno"; then
1203                          linux_syscall_method=none
1204                          if test "x$ac_cv_linux_exports_init_mm" = "xyes"; then
1205                             linux_syscall_method=scan
1206                             if test "x$ac_cv_linux_exports_kallsyms_address" = "xyes"; then
1207                                linux_syscall_method=scan_with_kallsyms_address
1208                             fi
1209                          fi
1210                          if test "x$ac_cv_linux_exports_kallsyms_symbol" = "xyes"; then
1211                             linux_syscall_method=kallsyms_symbol
1212                          fi
1213                          if test "x$linux_syscall_method" = "xnone"; then
1214                             AC_MSG_WARN([no available sys_call_table access method -- guessing scan])
1215                             linux_syscall_method=scan
1216                          fi
1217                    fi
1218                  fi
1219                  if test -f "$LINUX_KERNEL_PATH/include/linux/in_systm.h"; then
1220                   AC_DEFINE(HAVE_IN_SYSTM_H, 1, [define if you have in_systm.h header file])
1221                  fi
1222                  if test -f "$LINUX_KERNEL_PATH/include/linux/mm_inline.h"; then
1223                   AC_DEFINE(HAVE_MM_INLINE_H, 1, [define if you have mm_inline.h header file])
1224                  fi
1225                  if test "x$ac_cv_linux_kernel_page_follow_link" = "xyes" -o "x$ac_cv_linux_func_i_put_link_takes_cookie" = "xyes"; then
1226                   AC_DEFINE(USABLE_KERNEL_PAGE_SYMLINK_CACHE, 1, [define if your kernel has a usable symlink cache API])
1227                  else
1228                   AC_MSG_WARN([your kernel does not have a usable symlink cache API])
1229                  fi
1230                 :
1231                 fi
1232                 if test "x$enable_linux_d_splice_alias_extra_iput" = xyes; then
1233                     AC_DEFINE(D_SPLICE_ALIAS_LEAK_ON_ERROR, 1, [for internal use])
1234                 fi
1235 dnl Linux-only, but just enable always.
1236                 AC_DEFINE(AFS_CACHE_BYPASS, 1, [define to activate cache bypassing Unix client])
1237 esac
1238
1239 AC_CACHE_CHECK([if compiler has __sync_add_and_fetch],
1240     [ac_cv_sync_fetch_and_add],
1241     [AC_TRY_LINK(, [int var; return __sync_add_and_fetch(&var, 1);],
1242                     [ac_cv_sync_fetch_and_add=yes],
1243                     [ac_cv_sync_fetch_and_add=no])
1244 ])
1245 AS_IF([test "$ac_cv_sync_fetch_and_add" = "yes"],
1246       [AC_DEFINE(HAVE_SYNC_FETCH_AND_ADD, 1,
1247                 [define if your C compiler has __sync_add_and_fetch])])
1248
1249 AC_CACHE_CHECK([if struct sockaddr has sa_len field],
1250     [ac_cv_sockaddr_len],
1251     [AC_TRY_COMPILE( [#include <sys/types.h>
1252 #include <sys/socket.h>],
1253                      [struct sockaddr *a; a->sa_len=0;],
1254                      [ac_cv_sockaddr_len=yes],
1255                      [ac_cv_sockaddr_len=no])
1256 ])
1257 AS_IF([test "$ac_cv_sockaddr_len" = "yes"],
1258       [AC_DEFINE(STRUCT_SOCKADDR_HAS_SA_LEN, 1,
1259                  [define if you struct sockaddr sa_len])])
1260
1261 if test "x${MKAFS_OSTYPE}" = "xIRIX"; then
1262         echo Skipping library tests because they confuse Irix.
1263 else
1264   AC_SEARCH_LIBS([socket], [socket inet])
1265   AC_SEARCH_LIBS([connect], [nsl])
1266   AC_SEARCH_LIBS([gethostbyname], [dns nsl resolv])
1267
1268   dnl darwin wants it, aix hates it
1269   AC_MSG_CHECKING(for the useability of arpa/nameser_compat.h)
1270   AC_TRY_COMPILE([
1271   #include <stdlib.h>
1272   #include <stdio.h>
1273   #include <sys/types.h>
1274   #include <sys/socket.h>
1275   #include <netinet/in.h>
1276   #include <arpa/inet.h>
1277   #include <arpa/nameser.h>
1278   #include <arpa/nameser_compat.h>
1279   #include <resolv.h>
1280   ], [static int i; i = 0;],
1281   [AC_MSG_RESULT(yes)
1282    AC_DEFINE(HAVE_ARPA_NAMESER_COMPAT_H, 1, [define if arpa/nameser_compat.h exists])],
1283   [AC_MSG_RESULT(no)
1284    ])
1285
1286   openafs_save_libs="$LIBS"
1287   AC_MSG_CHECKING([for res_search])
1288   AC_FUNC_RES_SEARCH
1289
1290   if test "$ac_cv_func_res_search" = no; then
1291       for lib in dns nsl resolv; do
1292         if test "$ac_cv_func_res_search" != yes; then
1293           LIBS="-l$lib $LIBS"
1294           AC_FUNC_RES_SEARCH
1295           LIBS="$openafs_save_libs"
1296         fi
1297       done    
1298       if test "$ac_cv_func_res_search" = yes; then
1299         LIB_AFSDB="-l$lib"
1300         AC_DEFINE(HAVE_RES_SEARCH, 1, [])
1301         AC_MSG_RESULT([yes, in lib$lib])
1302       else
1303         AC_MSG_RESULT(no)
1304       fi
1305   else
1306     AC_DEFINE(HAVE_RES_SEARCH, 1, [])
1307     AC_MSG_RESULT(yes)
1308   fi
1309   
1310 fi
1311 XLIBS="$LIB_AFSDB $XLIBS"
1312
1313 AC_CHECK_RESOLV_RETRANS
1314
1315 AC_CACHE_CHECK([for setsockopt(, SOL_IP, IP_RECVERR)],
1316     [ac_cv_setsockopt_iprecverr],
1317     [AC_TRY_COMPILE( [
1318 #include <sys/types.h>
1319 #include <sys/socket.h>
1320 #include <netinet/in.h>],
1321 [int on=1;
1322 setsockopt(0, SOL_IP, IP_RECVERR, &on, sizeof(on));],
1323         [ac_cv_setsockopt_iprecverr=yes],
1324         [ac_cv_setsockopt_iprecverr=no])])
1325
1326 AS_IF([test "$ac_cv_setsockopt_iprecverr" = "yes"],
1327       [AC_DEFINE([HAVE_SETSOCKOPT_IP_RECVERR], [1],
1328                  [define if we can receive socket errors via IP_RECVERR])])
1329
1330 PTHREAD_LIBS=error
1331 if test "x$MKAFS_OSTYPE" = OBSD; then
1332         PTHREAD_LIBS="-pthread"
1333 fi
1334 if test "x$MKAFS_OSTYPE" = xDFBSD; then
1335         PTHREAD_LIBS="-pthread"
1336 fi
1337 if test "x$PTHREAD_LIBS" = xerror; then
1338         AC_CHECK_LIB(pthread, pthread_attr_init,
1339                 PTHREAD_LIBS="-lpthread")
1340 fi
1341 if test "x$PTHREAD_LIBS" = xerror; then
1342         AC_CHECK_LIB(pthreads, pthread_attr_init,
1343                 PTHREAD_LIBS="-lpthreads")
1344 fi
1345 if test "x$PTHREAD_LIBS" = xerror; then
1346         AC_CHECK_LIB(c_r, pthread_attr_init,
1347                 PTHREAD_LIBS="-lc_r")
1348 fi
1349 if test "x$PTHREAD_LIBS" = xerror; then
1350         AC_CHECK_FUNC(pthread_attr_init, PTHREAD_LIBS="")
1351 fi
1352 if test "x$PTHREAD_LIBS" = xerror; then
1353         # pthread_attr_init is a macro under HPUX 11.0 and 11.11
1354         AC_CHECK_LIB(pthread, pthread_attr_destroy,
1355                 PTHREAD_LIBS="-lpthread")
1356 fi
1357 if test "x$PTHREAD_LIBS" = xerror; then
1358         AC_MSG_WARN(*** Unable to locate working posix thread library ***)
1359 fi
1360 AC_SUBST(PTHREAD_LIBS)
1361
1362 HOST_CPU="$host_cpu"
1363
1364 if test "x$with_bsd_kernel_headers" != "x"; then
1365         BSD_KERNEL_PATH="$with_bsd_kernel_headers"
1366 else
1367         BSD_KERNEL_PATH="/usr/src/sys"
1368 fi
1369
1370 if test "x$with_bsd_kernel_build" != "x"; then
1371         BSD_KERNEL_BUILD="$with_bsd_kernel_build"
1372 else
1373         case $AFS_SYSNAME in
1374                 *_fbsd_*)
1375                         BSD_KERNEL_BUILD="${BSD_KERNEL_PATH}/${HOST_CPU}/compile/GENERIC"
1376                         ;;
1377                 *_nbsd*)
1378                         BSD_KERNEL_BUILD="${BSD_KERNEL_PATH}/arch/${HOST_CPU}/compile/GENERIC"
1379         esac
1380 fi
1381
1382 # Fast restart
1383 if test "$enable_supergroups" = "yes"; then
1384         AC_DEFINE(SUPERGROUPS, 1, [define if you want to have support for nested pts groups])
1385 fi
1386
1387 if test "$enable_bitmap_later" = "yes"; then
1388         AC_DEFINE(BITMAP_LATER, 1, [define if you want to salvager to check bitmasks later])
1389 fi
1390
1391 if test "$enable_unix_sockets" = "yes"; then
1392         AC_DEFINE(USE_UNIX_SOCKETS, 1, [define if you want to use UNIX sockets for fssync.])
1393         USE_UNIX_SOCKETS="yes"
1394 else
1395         USE_UNIX_SOCKETS="no"
1396 fi
1397 AC_SUBST(USE_UNIX_SOCKETS)
1398
1399 if test "$enable_namei_fileserver" = "yes"; then
1400         AC_DEFINE(AFS_NAMEI_ENV, 1, [define if you want to want namei fileserver])
1401         VFSCK=""
1402 else
1403         if test "$enable_namei_fileserver" = "default"; then
1404                 case $host in
1405                         *-solaris2.10*)
1406                                 AC_MSG_WARN(Some Solaris 10 versions are not safe with the inode fileserver. Forcing namei. Override with --disable-namei-fileserver)
1407                                 AC_DEFINE(AFS_NAMEI_ENV, 1, [define if you want to want namei fileserver])
1408                                 VFSCK=""
1409                                 ;;
1410                         *-solaris2.11*)
1411                                 AC_MSG_WARN(Solaris 11 versions are not safe with the inode fileserver. Forcing namei. Override with --disable-namei-fileserver)
1412                                 AC_DEFINE(AFS_NAMEI_ENV, 1, [define if you want to want namei fileserver])
1413                                 VFSCK=""
1414                                 ;;
1415                         *)
1416                                 VFSCK="vfsck"
1417                                 ;;
1418                 esac
1419         else
1420                 VFSCK="vfsck"
1421         fi
1422 fi
1423
1424 dnl check for tivoli
1425 AC_MSG_CHECKING(for tivoli tsm butc support)
1426 XBSA_CFLAGS=""
1427 if test "$enable_tivoli_tsm" = "yes"; then
1428         XBSADIR1=/usr/tivoli/tsm/client/api/bin/xopen
1429         XBSADIR2=/opt/tivoli/tsm/client/api/bin/xopen
1430         XBSADIR3=/usr/tivoli/tsm/client/api/bin/sample
1431         XBSADIR4=/opt/tivoli/tsm/client/api/bin/sample
1432
1433         if test -r "$XBSADIR3/dsmapifp.h"; then
1434                 XBSA_CFLAGS="-Dxbsa -DNEW_XBSA -I$XBSADIR3"
1435                 XBSA_XLIBS="-ldl"
1436                 AC_MSG_RESULT([yes, $XBSA_CFLAGS])
1437         elif test -r "$XBSADIR4/dsmapifp.h"; then
1438                 XBSA_CFLAGS="-Dxbsa -DNEW_XBSA -I$XBSADIR4"
1439                 XBSA_XLIBS="-ldl"
1440                 AC_MSG_RESULT([yes, $XBSA_CFLAGS])
1441         elif test -r "$XBSADIR1/xbsa.h"; then
1442                 XBSA_CFLAGS="-Dxbsa -I$XBSADIR1"
1443                 XBSA_XLIBS=""
1444                 AC_MSG_RESULT([yes, $XBSA_CFLAGS])
1445         elif test -r "$XBSADIR2/xbsa.h"; then
1446                 XBSA_CFLAGS="-Dxbsa -I$XBSADIR2"
1447                 XBSA_XLIBS=""
1448                 AC_MSG_RESULT([yes, $XBSA_CFLAGS])
1449         else
1450                 AC_MSG_RESULT([no, missing xbsa.h and dsmapifp.h header files])
1451         fi
1452 else
1453         AC_MSG_RESULT([no])
1454 fi
1455 AC_SUBST(XBSA_CFLAGS)
1456 AC_SUBST(XBSA_XLIBS) 
1457 XLIBS="$XBSA_XLIBS $XLIBS"
1458
1459 dnl checks for header files.
1460 AC_HEADER_STDC
1461 AC_HEADER_SYS_WAIT
1462 AC_HEADER_DIRENT
1463 AC_CHECK_HEADERS([ \
1464                    arpa/inet.h \
1465                    arpa/nameser.h \
1466                    curses.h\
1467                    direct.h \
1468                    errno.h \
1469                    fcntl.h \
1470                    grp.h \
1471                    math.h \
1472                    mntent.h \
1473                    ncurses.h \
1474                    ncurses/ncurses.h \
1475                    netdb.h \
1476                    netinet/in.h \
1477                    pthread_np.h \
1478                    pwd.h \
1479                    regex.h \
1480                    security/pam_appl.h \
1481                    signal.h \
1482                    stdint.h \
1483                    stdio_ext.h \
1484                    stdlib.h \
1485                    string.h \
1486                    strings.h \
1487                    sys/bitypes.h \
1488                    sys/bswap.h \
1489                    sys/dk.h \
1490                    sys/fcntl.h \
1491                    sys/file.h \
1492                    sys/fs_types.h \
1493                    sys/fstyp.h \
1494                    sys/ioctl.h \
1495                    sys/ipc.h \
1496                    sys/lockf.h \
1497                    sys/map.h \
1498                    sys/mount.h \
1499                    sys/mntent.h \
1500                    sys/mnttab.h \
1501                    sys/pag.h \
1502                    sys/param.h \
1503                    sys/resource.h \
1504                    sys/select.h \
1505                    sys/statfs.h \
1506                    sys/statvfs.h \
1507                    sys/socket.h \
1508                    sys/sysctl.h \
1509                    sys/time.h \
1510                    sys/types.h \
1511                    sys/uio.h \
1512                    sys/un.h \
1513                    sys/vfs.h \
1514                    syslog.h \
1515                    termios.h \
1516                    time.h \
1517                    ucontext.h \
1518                    unistd.h \
1519                    windows.h \
1520                 ])
1521
1522 AC_CHECK_HEADERS([resolv.h], [], [], [AC_INCLUDES_DEFAULT
1523 #ifdef HAVE_NETINET_IN_H
1524 # include <netinet/in.h>
1525 #endif])
1526
1527 AC_CHECK_HEADERS([net/if.h],[],[],[AC_INCLUDES_DEFAULT
1528 #ifdef HAVE_SYS_SOCKET_H
1529 # include <sys/socket.h>
1530 #endif])
1531
1532 AC_CHECK_HEADERS([netinet/if_ether.h],[],[],[AC_INCLUDES_DEFAULT
1533 #ifdef HAVE_SYS_SOCKET_H
1534 # include <sys/socket.h>
1535 #endif
1536 #ifdef HAVE_NETINET_IN_H
1537 # include <netinet/in.h>
1538 #endif
1539 #ifdef HAVE_NET_IF_H
1540 # include <net/if.h>
1541 #endif])
1542
1543 AC_CHECK_HEADERS([security/pam_modules.h],[],[],[AC_INCLUDES_DEFAULT
1544 #ifdef HAVE_SECURITY_PAM_APPL_H
1545 # include <security/pam_appl.h>
1546 #endif])
1547
1548 AC_CHECK_HEADERS(linux/errqueue.h,,,[#include <linux/types.h>])
1549
1550 AC_CHECK_TYPES([fsblkcnt_t],,,[
1551 #include <sys/types.h>
1552 #ifdef HAVE_SYS_BITYPES_H
1553 #include <sys/bitypes.h>
1554 #endif
1555 #ifdef HAVE_SYS_STATFS_H
1556 #include <sys/statfs.h>
1557 #endif
1558 #ifdef HAVE_SYS_STATVFS_H
1559 #include <sys/statvfs.h>
1560 #endif
1561 ])
1562
1563 dnl see what struct stat has for timestamps
1564 AC_CHECK_MEMBERS([struct stat.st_ctimespec, struct stat.st_ctimensec])
1565
1566 OPENAFS_TEST_PACKAGE(libintl,[#include <libintl.h>],[-lintl],,,INTL)
1567
1568 if test "$enable_debug_locks" = yes; then
1569         AC_DEFINE(OPR_DEBUG_LOCKS, 1, [turn on lock debugging in opr])
1570 fi
1571
1572 if test "$ac_cv_header_security_pam_modules_h" = yes -a "$enable_pam" = yes; then
1573         HAVE_PAM="YES"
1574 else
1575         HAVE_PAM="no"
1576 fi
1577 AC_SUBST(HAVE_PAM)
1578
1579 if test "$enable_login" = yes; then
1580         BUILD_LOGIN="yes"
1581 else
1582         BUILD_LOGIN="no"
1583 fi
1584 AC_SUBST(BUILD_LOGIN)
1585
1586 if test "$enable_kauth" = yes; then
1587         INSTALL_KAUTH="yes"
1588 else
1589         INSTALL_KAUTH="no"
1590 fi
1591 AC_SUBST(INSTALL_KAUTH)
1592
1593 AC_CHECK_FUNCS([ \
1594         arc4random \
1595         fcntl \
1596         fseeko64 \
1597         ftello64 \
1598         getcwd \
1599         getegid \
1600         geteuid \
1601         getgid \
1602         getuid \
1603         getrlimit \
1604         issetugid \
1605         mkstemp \
1606         poll \
1607         pread \
1608         preadv \
1609         preadv64 \
1610         pwrite \
1611         pwritev \
1612         pwritev64 \
1613         regcomp \
1614         regerror \
1615         regexec \
1616         setitimer \
1617         setvbuf \
1618         sigaction \
1619         strcasestr \
1620         strerror \
1621         sysconf \
1622         sysctl \
1623         tdestroy \
1624         timegm \
1625 ])
1626
1627 OPENAFS_ROKEN()
1628 OPENAFS_HCRYPTO()
1629 OPENAFS_CURSES()
1630 OPENAFS_C_ATTRIBUTE()
1631 OPENAFS_C_PRAGMA()
1632
1633 dnl Functions that Heimdal's libroken provides, but that we
1634 dnl haven't found a need for yet, and so haven't imported
1635 AC_CHECK_FUNCS([ \
1636         chown \
1637         fchown \
1638         gethostname \
1639         lstat \
1640         inet_aton \
1641         putenv \
1642         readv \
1643         setenv \
1644         strdup \
1645         strftime \
1646         strndup \
1647         strsep \
1648         unsetenv \
1649 ])
1650
1651 dnl Functions that are in objects that we always build from libroken
1652 AC_CHECK_FUNCS([ \
1653         asprintf \
1654         asnprintf \
1655         vasprintf \
1656         vasnprintf \
1657         vsnprintf \
1658         snprintf \
1659 ])
1660
1661 dnl Functions that we're going to try and get from libroken
1662 AC_REPLACE_FUNCS([ \
1663         daemon \
1664         ecalloc \
1665         emalloc \
1666         erealloc \
1667         err \
1668         errx \
1669         flock \
1670         freeaddrinfo \
1671         gai_strerror \
1672         getaddrinfo \
1673         getdtablesize \
1674         getnameinfo \
1675         getopt \
1676         getprogname \
1677         gettimeofday \
1678         inet_ntop \
1679         inet_pton \
1680         localtime_r \
1681         mkstemp \
1682         setenv \
1683         setprogname \
1684         strcasecmp \
1685         strlcat \
1686         strnlen \
1687         strlcpy \
1688         strsep \
1689         tdelete \
1690         tfind \
1691         tsearch \
1692         twalk \
1693         unsetenv \
1694         verr \
1695         verrx \
1696         vsyslog \
1697         vwarn \
1698         vwarnx \
1699         warn \
1700         warnx \
1701 ])
1702
1703 dnl Headers that we're going to try and get from libroken
1704 AC_CHECK_HEADERS([ \
1705         err.h \
1706         search.h \
1707 ])
1708
1709 AC_CHECK_DECLS([h_errno], [], [], [
1710 #include <sys/types.h>
1711 #ifdef HAVE_NETDB_H
1712 #include <netdb.h>
1713 #endif
1714 ])
1715
1716 AC_HEADER_TIME
1717
1718 ROKEN_HEADERS=
1719 AS_IF([test "$ac_cv_header_err_h" != "yes" ],
1720       [ROKEN_HEADERS="$ROKEN_HEADERS \$(TOP_INCDIR)/err.h"],
1721       [])
1722 AC_SUBST(ROKEN_HEADERS)
1723
1724 dnl Stuff that's harder ...
1725 AC_MSG_CHECKING([for bswap16])
1726 AC_LINK_IFELSE([AC_LANG_PROGRAM([
1727 #ifdef HAVE_SYS_TYPES_H
1728 #include <sys/types.h>
1729 #endif
1730 #ifdef HAVE_SYS_BSWAP_H
1731 #include <sys/bswap.h>
1732 #endif
1733 ],
1734 [short a, b; b = bswap16(a); ])],
1735 [AC_MSG_RESULT(yes)
1736  AC_DEFINE(HAVE_BSWAP16, 1, [Define to 1 if you have the bswap16 function])
1737 ],
1738 [AC_MSG_RESULT(no)])
1739
1740 AC_MSG_CHECKING([for bswap32])
1741 AC_LINK_IFELSE([AC_LANG_PROGRAM([#ifdef HAVE_SYS_TYPES_H
1742 #include <sys/types.h>
1743 #endif
1744 #ifdef HAVE_SYS_BSWAP_H
1745 #include <sys/bswap.h>
1746 #endif
1747 ],
1748 [int a, b; b = bswap32(a); ])],
1749 [AC_MSG_RESULT(yes)
1750  AC_DEFINE(HAVE_BSWAP32, 1, [Define to 1 if you have the bswap32 function])
1751 ],
1752 [AC_MSG_RESULT(no)])
1753
1754 case $AFS_SYSNAME in
1755 *hp_ux* | *hpux*)
1756    AC_MSG_WARN([Some versions of HP-UX have a buggy positional I/O implementation. Forcing no positional I/O.])
1757    ;;
1758 *)
1759    AC_MSG_CHECKING([for positional I/O])
1760    if test "$ac_cv_func_pread" = "yes" && \
1761            test "$ac_cv_func_pwrite" = "yes"; then
1762       AC_DEFINE(HAVE_PIO, 1, [define if you have pread() and pwrite()])
1763       AC_MSG_RESULT(yes)
1764    else
1765      AC_MSG_RESULT(no)
1766    fi
1767    AC_MSG_CHECKING([for vectored positional I/O])
1768    AS_IF([test "$ac_cv_func_preadv" = "yes" -a \
1769                "$ac_cv_func_pwritev" = "yes" -a \
1770                "$ac_cv_func_preadv64" = "yes" -a \
1771                "$ac_cv_func_pwritev64" = "yes"],
1772          [AC_DEFINE(HAVE_PIOV, 1, [define if you have preadv() and pwritev()])
1773           AC_MSG_RESULT(yes)],
1774          [AC_MSG_RESULT(no)])
1775    ;;
1776 esac
1777
1778 AC_MSG_CHECKING([for POSIX regex library])
1779 if test "$ac_cv_header_regex_h" = "yes" && \
1780         test "$ac_cv_func_regcomp" = "yes" && \
1781         test "$ac_cv_func_regexec" = "yes" && \
1782         test "$ac_cv_func_regerror" = "yes"; then
1783     AC_DEFINE(HAVE_POSIX_REGEX, 1, [define if you have POSIX regex library])
1784     AC_MSG_RESULT(yes)
1785 else
1786     AC_MSG_RESULT(no)
1787 fi
1788
1789 dnl Look for "non-portable" pthreads functions.
1790 save_LIBS="$LIBS"
1791 LIBS="$LIBS $PTHREAD_LIBS"
1792 AC_CHECK_FUNCS([ \
1793         pthread_set_name_np \
1794         pthread_setname_np \
1795 ])
1796
1797 dnl Sadly, there are three different versions of pthread_setname_np.
1798 dnl Try to cater for all of them.
1799 if test "$ac_cv_func_pthread_setname_np" = "yes" ; then
1800     AC_MSG_CHECKING([for signature of pthread_setname_np])
1801     AC_TRY_COMPILE([
1802 #include <pthread.h>
1803 #ifdef HAVE_PTHREAD_NP_H
1804 #include <pthread_np.h>
1805 #endif
1806 ], [pthread_setname_np(pthread_self(), "test", (void *)0)], [
1807         AC_MSG_RESULT([three arguments])
1808         pthread_setname_np_args=3], [
1809         AC_TRY_COMPILE([
1810 #include <pthread.h>
1811 #ifdef HAVE_PTHREAD_NP_H
1812 #include <pthread_np.h>
1813 #endif
1814 ], [pthread_setname_np(pthread_self(), "test")], [
1815             AC_MSG_RESULT([two arguments])
1816             pthread_setname_np_args=2], [
1817             AC_TRY_COMPILE([
1818 #include <pthread.h>
1819 #ifdef HAVE_PTHREAD_NP_H
1820 #include <pthread_np.h>
1821 #endif
1822 ], [pthread_setname_np("test")], [
1823                 AC_MSG_RESULT([one argument])
1824                 pthread_setname_np_args=1], [pthread_setname_np_args=0])
1825 ])
1826 ])
1827 AC_DEFINE_UNQUOTED([PTHREAD_SETNAME_NP_ARGS], $pthread_setname_np_args, [Number of arguments required by pthread_setname_np() function])
1828 fi
1829 LIBS="$save_LIBS"
1830
1831 openafs_cv_saved_CFLAGS="$CFLAGS"
1832 CFLAGS="$CFLAGS $XCFLAGS_NOCHECKING"
1833
1834 AC_TYPE_SIGNAL
1835 OPENAFS_RETSIGTYPE
1836 AC_CHECK_SIZEOF(void *)
1837 AC_CHECK_SIZEOF(unsigned long long)
1838 AC_CHECK_SIZEOF(unsigned long)
1839 AC_CHECK_SIZEOF(unsigned int)
1840 AC_TYPE_INTPTR_T
1841 AC_TYPE_UINTPTR_T
1842 AC_TYPE_SSIZE_T
1843 AC_CHECK_TYPE([sig_atomic_t],[],
1844     [AC_DEFINE([sig_atomic_t], [int],
1845         [Define to int if <signal.h> does not define.])],
1846 [#include <sys/types.h>
1847 #include <signal.h>])
1848 AC_CHECK_TYPE([socklen_t],[],
1849     [AC_DEFINE([socklen_t], [int],
1850         [Define to int if <sys/socket.h> does not define.])],
1851 [#include <sys/types.h>
1852 #include <sys/socket.h>])
1853 AC_CHECK_TYPES(off64_t)
1854 AC_CHECK_TYPES([ssize_t], [], [], [#include <unistd.h>])
1855 AC_CHECK_TYPES([struct winsize], [], [], [
1856 #ifdef HAVE_TERMIOS_H
1857 # include <termios.h>
1858 #else
1859 # include <sys/termios.h>
1860 #endif
1861 #include <sys/ioctl.h>])
1862 AC_CHECK_TYPES([sa_family_t, socklen_t, struct sockaddr,
1863                 struct sockaddr_storage],
1864                [], [], [
1865 #include <sys/types.h>
1866 #include <sys/socket.h>
1867 ])
1868 AC_CHECK_TYPES([sa_family_t], [], [], [
1869 #include <sys/types.h>
1870 #include <sys/socket.h>
1871 ])
1872 AC_CHECK_TYPES([struct addrinfo], [], [], [
1873 #include <sys/types.h>
1874 #ifdef HAVE_NETDB_H
1875 #include <netdb.h>
1876 #endif
1877 ])
1878 AC_CHECK_TYPES([long long], [], [], [])
1879
1880 AC_SIZEOF_TYPE(long)
1881
1882 CFLAGS="$openafs_cv_saved_CFLAGS"
1883
1884 RRA_HEADER_PAM_CONST
1885
1886
1887 dnl Directory PATH handling
1888 if test "x$enable_transarc_paths" = "xyes"  ; then 
1889     afsconfdir=${afsconfdir=/usr/afs/etc}
1890     viceetcdir=${viceetcdir=/usr/vice/etc}
1891     afskerneldir=${afskerneldir=${viceetcdir}}
1892     afssrvbindir=${afssrvbindir=/usr/afs/bin}
1893     afssrvsbindir=${afssrvsbindir=/usr/afs/bin}
1894     afssrvlibexecdir=${afssrvlibexecdir=/usr/afs/bin}
1895     afsdbdir=${afsdbdir=/usr/afs/db}
1896     afslogsdir=${afslogsdir=/usr/afs/logs}
1897     afslocaldir=${afslocaldir=/usr/afs/local}
1898     afsbackupdir=${afsbackupdir=/usr/afs/backup}
1899     afsbosconfigdir=${afsbosconfigdir=/usr/afs/local}
1900     afsdatadir=${afsdatadir=/usr/vice/etc}
1901 else 
1902     afsconfdir=${afsconfdir='${sysconfdir}/openafs/server'}
1903     viceetcdir=${viceetcdir='${sysconfdir}/openafs'}
1904     afskerneldir=${afskerneldir='${libdir}/openafs'}
1905     afssrvbindir=${afssrvbindir='${bindir}'}
1906     afssrvsbindir=${afssrvsbindir='${sbindir}'}
1907     afssrvlibexecdir=${afssrvlibexecdir='${libexecdir}/openafs'}
1908     afsdbdir=${afsdbdir='${localstatedir}/openafs/db'}
1909     afslogsdir=${afslogsdir='${localstatedir}/openafs/logs'}
1910     afslocaldir=${afslocaldir='${localstatedir}/openafs'}
1911     afsbackupdir=${afsbackupdir='${localstatedir}/openafs/backup'}
1912     afsbosconfigdir=${afsbosconfigdir='${sysconfdir}/openafs'}
1913     afsdatadir=${afsdatadir='${datadir}/openafs'}
1914 fi
1915 AC_SUBST(afsconfdir)
1916 AC_SUBST(viceetcdir)
1917 AC_SUBST(afskerneldir)
1918 AC_SUBST(afssrvbindir)
1919 AC_SUBST(afssrvsbindir)
1920 AC_SUBST(afssrvlibexecdir)
1921 AC_SUBST(afsdbdir)
1922 AC_SUBST(afslogsdir)
1923 AC_SUBST(afslocaldir)
1924 AC_SUBST(afsbackupdir)
1925 AC_SUBST(afsbosconfigdir)
1926 AC_SUBST(afsdatadir)
1927
1928 if test "x$enable_kernel_module" = "xyes"; then
1929 ENABLE_KERNEL_MODULE=libafs
1930 fi
1931
1932 if test "x$enable_pthreaded_ubik" = "xyes"; then
1933 ENABLE_PTHREADED_UBIK=yes
1934 fi
1935
1936 AC_SUBST(VFSCK)
1937 AC_SUBST(AFS_SYSNAME)
1938 AC_SUBST(AFS_PARAM_COMMON)
1939 AC_SUBST(ENABLE_KERNEL_MODULE)
1940 AC_SUBST(ENABLE_PTHREADED_UBIK)
1941 AC_SUBST(LIB_AFSDB)
1942 AC_SUBST(LINUX_KERNEL_PATH)
1943 AC_SUBST(LINUX_KERNEL_BUILD)
1944 AC_SUBST(HOST_CPU)
1945 AC_SUBST(BSD_KERNEL_PATH)
1946 AC_SUBST(BSD_KERNEL_BUILD)
1947 AC_SUBST(LINUX_VERSION)
1948 AC_SUBST(MKAFS_OSTYPE)
1949 AC_SUBST(TOP_OBJDIR)
1950 AC_SUBST(TOP_SRCDIR)
1951 AC_SUBST(TOP_INCDIR)
1952 AC_SUBST(TOP_LIBDIR)
1953 AC_SUBST(DEST)
1954 AC_SUBST(DARWIN_INFOFILE)
1955 AC_SUBST(IRIX_BUILD_IP35)
1956 AC_SUBST(HTML_XSL)
1957 AC_SUBST(XSLTPROC)
1958 AC_SUBST(DOCBOOK2PDF)
1959 AC_SUBST(DOCBOOK_STYLESHEETS)
1960
1961 OPENAFS_FUSE
1962 OPENAFS_SWIG
1963
1964 TOP_SRCDIR="${srcdir}/src"
1965 dnl
1966 dnl If we're using ./configure, need a more reasonable TOP_SRCDIR, since relative links don't work everywhere
1967 dnl
1968 case $TOP_SRCDIR in
1969         /*)
1970                 ;;
1971         *)
1972                 TOP_SRCDIR=`cd $TOP_SRCDIR; pwd`
1973                 ;;
1974 esac
1975
1976 TOP_OBJDIR="${SRCDIR_PARENT}"
1977 TOP_INCDIR="${SRCDIR_PARENT}/include"
1978 TOP_LIBDIR="${SRCDIR_PARENT}/lib"
1979 if test "${DEST}x" = "x"; then
1980         DEST="${SRCDIR_PARENT}/${AFS_SYSNAME}/dest"
1981 fi
1982
1983 if test "x$with_crosstools_dir" != "x"; then
1984         if test -f "$with_crosstools_dir/rxgen" -a -f "$with_crosstools_dir/compile_et" -a -f "$with_crosstools_dir/config"; then
1985                 COMPILE_ET_PATH=$with_crosstools_dir/compile_et
1986                 CONFIGTOOL_PATH=$with_crosstools_dir/config
1987                 RXGEN_PATH=$with_crosstools_dir/rxgen
1988         else
1989                 AC_MSG_ERROR(Tools not found in $with_crosstools_dir)
1990                 exit 1
1991         fi
1992 else
1993         COMPILE_ET_PATH="${SRCDIR_PARENT}/src/comerr/compile_et"
1994         CONFIGTOOL_PATH="${SRCDIR_PARENT}/src/config/config"
1995         RXGEN_PATH="${SRCDIR_PARENT}/src/rxgen/rxgen"
1996 fi
1997 AC_SUBST(COMPILE_ET_PATH)
1998 AC_SUBST(CONFIGTOOL_PATH)
1999 AC_SUBST(RXGEN_PATH)
2000
2001 HELPER_SPLINT="${TOP_SRCDIR}/helper-splint.sh"
2002 HELPER_SPLINTCFG="${TOP_SRCDIR}/splint.cfg"
2003 AC_SUBST(HELPER_SPLINT)
2004 AC_SUBST(HELPER_SPLINTCFG)
2005
2006 mkdir -p ${TOP_OBJDIR}/src/JAVA/libjafs
2007
2008 dnl Check to see if crypt lives in a different library
2009 AC_CHECK_LIB(crypt, crypt, LIB_crypt="-lcrypt")
2010 AC_SUBST(LIB_crypt)
2011
2012 dnl Check to see if the compiler support labels in structs
2013 AC_MSG_CHECKING(for label support in structs)
2014 AC_TRY_COMPILE([], [
2015 extern void osi_UFSOpen(void);
2016 struct labeltest {
2017    void (*open) (void);
2018 };
2019 struct labeltest struct_labeltest = {
2020    .open       = osi_UFSOpen,
2021 }
2022 ],
2023 [AC_MSG_RESULT(yes)
2024  AC_DEFINE(HAVE_STRUCT_LABEL_SUPPORT, 1, [Define to 1 if your compiler supports labels in structs.])
2025 ],
2026 [AC_MSG_RESULT(no)
2027 ])
2028
2029 AC_MSG_CHECKING([checking for dirfd])
2030 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
2031 #ifdef HAVE_DIRENT_H
2032 #include <dirent.h>
2033 #endif
2034 ]],
2035         [[DIR *d = 0; dirfd(d);]])],
2036         [ac_rk_have_dirfd=yes], [ac_rk_have_dirfd=no])
2037 if test "$ac_rk_have_dirfd" = "yes" ; then
2038         AC_DEFINE_UNQUOTED(HAVE_DIRFD, 1, [have a dirfd function/macro])
2039 fi
2040 AC_MSG_RESULT($ac_rk_have_dirfd)
2041
2042 OPENAFS_HAVE_STRUCT_FIELD(DIR, dd_fd, [#include <sys/types.h>
2043 #ifdef HAVE_DIRENT_H
2044 #include <dirent.h>
2045 #endif])
2046
2047 OPENAFS_HAVE_STRUCT_FIELD(struct rusage, ru_idrss,
2048 [#ifdef HAVE_SYS_RESOURCE_H
2049 #include <sys/resource.h>
2050 #endif])
2051
2052 dnl Check for UUID library
2053 AC_CHECK_HEADERS([uuid/uuid.h])
2054 AC_CHECK_LIB(uuid, uuid_generate, LIBS_uuid="-luuid")
2055 AC_CHECK_FUNCS([uuid_generate])
2056 ])
2057
2058