Update extra-iput configure argument description
[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                 sparc-sun-solaris2.8)
689                         AFS_SYSNAME="sun4x_58"
690                         ;;
691                 sparc-sun-solaris2.9)
692                         AFS_SYSNAME="sun4x_59"
693                         ;;
694                 sparc-sun-solaris2.10)
695                         AFS_SYSNAME="sun4x_510"
696                         ;;
697                 sparc-sun-solaris2.11)
698                         AFS_SYSNAME="sun4x_511"
699                         ;;
700                 i386-pc-solaris2.8)
701                         AFS_SYSNAME="sunx86_58"
702                         ;;
703                 i386-pc-solaris2.9)
704                         AFS_SYSNAME="sunx86_59"
705                         ;;
706                 i386-pc-solaris2.10)
707                         AFS_SYSNAME="sunx86_510"
708                         ;;
709                 i386-pc-solaris2.11)
710                         AFS_SYSNAME="sunx86_511"
711                         ;;
712                 alpha*-dec-osf4.0*)
713                         AFS_SYSNAME="alpha_dux40"
714                         ;;
715                 alpha*-dec-osf5.0*)
716                         AFS_SYSNAME="alpha_dux50"
717                         ;;
718                 alpha*-dec-osf5.1*)
719                         AFS_SYSNAME="alpha_dux51"
720                         ;;
721                 mips-sgi-irix6.5)
722                         AFS_SYSNAME="sgi_65"
723                         enable_pam="no"
724                         ;;
725                 ia64-*-linux*)
726                         AFS_SYSNAME="ia64_linuxXX"
727                         ;;
728                 powerpc-*-linux*)
729                         AFS_SYSNAME="`/bin/arch`_linuxXX"
730                         ;;
731                 powerpc64-*-linux*)
732                         AFS_SYSNAME="ppc64_linuxXX"
733                         ;;
734                 alpha*-linux*)
735                         AFS_SYSNAME="alpha_linux_XX"
736                         ;;
737                 s390-*-linux*)
738                         AFS_SYSNAME="s390_linuxXX"
739                         ;;
740                 s390x-*-linux*)
741                         AFS_SYSNAME="s390x_linuxXX"
742                         ;;
743                 sparc-*-linux*)
744                         AFS_SYSNAME="`/bin/arch`_linuxXX"
745                         ;;
746                 sparc64-*-linux*)
747                         AFS_SYSNAME="sparc64_linuxXX"
748                         ;;
749                 i?86-*-linux*)
750                         AFS_SYSNAME="i386_linuxXX"
751                         ;;
752                 arm*-linux*)
753                         AFS_SYSNAME="arm_linuxXX"
754                         ;;
755                 parisc-*-linux-gnu|hppa-*-linux-gnu)
756                         AFS_SYSNAME="parisc_linuxXX"
757                         enable_pam="no"
758                         ;;
759                 power*-ibm-aix4.2*)
760                         AFS_SYSNAME="rs_aix42"
761                         enable_pam="no"
762                         ;;
763                 power*-ibm-aix4.3*)
764                         AFS_SYSNAME="rs_aix42"
765                         enable_pam="no"
766                         ;;
767                 power*-ibm-aix5.1*)
768                         AFS_SYSNAME="rs_aix51"
769                         enable_pam="no"
770                         ;;
771                 power*-ibm-aix5.2*)
772                         AFS_SYSNAME="rs_aix52"
773                         enable_pam="no"
774                         ;;
775                 power*-ibm-aix5.3*)
776                         AFS_SYSNAME="rs_aix53"
777                         enable_pam="no"
778                         ;;
779                 power*-ibm-aix6.1*)
780                         AFS_SYSNAME="rs_aix61"
781                         enable_pam="no"
782                         ;;
783                 x86_64-*-linux-gnu)
784                         AFS_SYSNAME="amd64_linuxXX"
785                         enable_pam="yes"
786                         ;;
787                 *)
788                         AC_MSG_ERROR(An AFS sysname is required)
789                         exit 1
790                         ;;
791         esac
792         case $AFS_SYSNAME in
793                 *_linux* | *_umlinux*)
794                         if test "x${AFS_SYSKVERS}" = "x"; then
795                          AC_MSG_ERROR(Couldn't guess your Linux version. Please use the --with-afs-sysname option to configure an AFS sysname.)
796                         fi
797                         if test "x${AFS_SYSKVERS}" = "x24" ||
798                                 test "x${AFS_SYSKVERS}" = "x22"; then
799                             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.])
800                         fi
801                         _AFS_SYSNAME=`echo $AFS_SYSNAME|sed s/XX\$/$AFS_SYSKVERS/`
802                         AFS_SYSNAME="$_AFS_SYSNAME"
803                         AC_TRY_KBUILD(
804                          [],
805                          [#ifndef CONFIG_USERMODE
806                           #error not UML
807                           #endif],
808                          ac_cv_linux_is_uml=yes,)
809                         if test "${ac_cv_linux_is_uml}" = yes; then
810                          _AFS_SYSNAME=`echo $AFS_SYSNAME|sed s/linux/umlinux/`
811                         fi
812                         AFS_SYSNAME="$_AFS_SYSNAME"
813                         ;;
814         esac
815         AC_MSG_RESULT($AFS_SYSNAME)
816 fi
817
818 case $AFS_SYSNAME in
819         *_darwin*)
820                 AC_CHECK_HEADERS(crt_externs.h)
821                 DARWIN_PLIST=src/libafs/afs.${AFS_SYSNAME}.plist
822                 DARWIN_INFOFILE=afs.${AFS_SYSNAME}.plist
823                 AC_SUBST(OSXSDK)
824                 ;;
825 esac
826
827 dnl Some hosts have a separate common param file they should include.  Figure
828 dnl out if we're on one of them now that we know the sysname.
829 case $AFS_SYSNAME in
830     *_nbsd15)   AFS_PARAM_COMMON=param.nbsd15.h  ;;
831     *_nbsd16)   AFS_PARAM_COMMON=param.nbsd16.h  ;;
832     *_nbsd20)   AFS_PARAM_COMMON=param.nbsd20.h  ;;
833     *_nbsd21)   AFS_PARAM_COMMON=param.nbsd21.h  ;;
834     *_nbsd30)   AFS_PARAM_COMMON=param.nbsd30.h  ;;
835     *_nbsd40)   AFS_PARAM_COMMON=param.nbsd40.h  ;;
836     *_nbsd50)   AFS_PARAM_COMMON=param.nbsd50.h  ;;
837     *_nbsd60)   AFS_PARAM_COMMON=param.nbsd60.h  ;;
838     *_nbsd70)   AFS_PARAM_COMMON=param.nbsd70.h  ;;
839     *_obsd31)   AFS_PARAM_COMMON=param.obsd31.h  ;;
840     *_obsd32)   AFS_PARAM_COMMON=param.obsd32.h  ;;
841     *_obsd33)   AFS_PARAM_COMMON=param.obsd33.h  ;;
842     *_obsd34)   AFS_PARAM_COMMON=param.obsd34.h  ;;
843     *_obsd35)   AFS_PARAM_COMMON=param.obsd35.h  ;;
844     *_obsd36)   AFS_PARAM_COMMON=param.obsd36.h  ;;
845     *_obsd37)   AFS_PARAM_COMMON=param.obsd37.h  ;;
846     *_obsd38)   AFS_PARAM_COMMON=param.obsd38.h  ;;
847     *_obsd39)   AFS_PARAM_COMMON=param.obsd39.h  ;;
848     *_obsd40)   AFS_PARAM_COMMON=param.obsd40.h  ;;
849     *_obsd41)   AFS_PARAM_COMMON=param.obsd41.h  ;;
850     *_obsd42)   AFS_PARAM_COMMON=param.obsd42.h  ;;
851     *_obsd43)   AFS_PARAM_COMMON=param.obsd43.h  ;;
852     *_obsd44)   AFS_PARAM_COMMON=param.obsd44.h  ;;
853     *_obsd45)   AFS_PARAM_COMMON=param.obsd45.h  ;;
854     *_obsd46)   AFS_PARAM_COMMON=param.obsd46.h  ;;
855     *_obsd47)   AFS_PARAM_COMMON=param.obsd47.h  ;;
856     *_obsd48)   AFS_PARAM_COMMON=param.obsd48.h  ;;
857     *_obsd49)   AFS_PARAM_COMMON=param.obsd49.h  ;;
858     *_obsd50)   AFS_PARAM_COMMON=param.obsd50.h  ;;
859     *_obsd51)   AFS_PARAM_COMMON=param.obsd51.h  ;;
860     *_obsd52)   AFS_PARAM_COMMON=param.obsd52.h  ;;
861     *_obsd53)   AFS_PARAM_COMMON=param.obsd53.h  ;;
862     *_obsd54)   AFS_PARAM_COMMON=param.obsd54.h  ;;
863     *_linux26)  AFS_PARAM_COMMON=param.linux26.h ;;
864 # Linux alpha adds an extra underscore for no good reason.
865     *_linux_26) AFS_PARAM_COMMON=param.linux26.h ;;
866     *_fbsd_*)   AFS_PARAM_COMMON=param.generic_fbsd.h ;;
867 esac
868
869 OPENAFS_OSCONF
870
871 case $AFS_SYSNAME in *_linux* | *_umlinux*)
872
873                 # Add (sub-) architecture-specific paths needed by conftests
874                 case $AFS_SYSNAME  in
875                         *_umlinux26)
876                                 UMLINUX26_FLAGS="-I$LINUX_KERNEL_PATH/arch/um/include"
877                                 UMLINUX26_FLAGS="$UMLINUX26_FLAGS -I$LINUX_KERNEL_PATH/arch/um/kernel/tt/include"
878                                 UMLINUX26_FLAGS="$UMLINUX26_FLAGS -I$LINUX_KERNEL_PATH/arch/um/kernel/skas/include"
879                                 CPPFLAGS="$CPPFLAGS $UMLINUX26_FLAGS"
880                 esac
881
882                 if test "x$enable_kernel_module" = "xyes"; then
883                  if test "x$enable_debug_kernel" = "xno"; then
884                         LINUX_GCC_KOPTS="$LINUX_GCC_KOPTS -fomit-frame-pointer"
885                  fi
886                  OPENAFS_GCC_SUPPORTS_MARCH
887                  AC_SUBST(P5PLUS_KOPTS)
888                  OPENAFS_GCC_NEEDS_NO_STRENGTH_REDUCE
889                  OPENAFS_GCC_NEEDS_NO_STRICT_ALIASING
890                  OPENAFS_GCC_SUPPORTS_NO_COMMON
891                  OPENAFS_GCC_SUPPORTS_PIPE
892                  AC_SUBST(LINUX_GCC_KOPTS)
893
894                  dnl Setup the kernel build environment
895                  LINUX_KBUILD_USES_EXTRA_CFLAGS
896                  LINUX_KERNEL_COMPILE_WORKS
897
898                  dnl Operation signature checks
899                  AC_CHECK_LINUX_OPERATION([inode_operations], [follow_link], [no_nameidata],
900                                           [#include <linux/fs.h>],
901                                           [const char *],
902                                           [struct dentry *dentry, void **link_data])
903                  AC_CHECK_LINUX_OPERATION([inode_operations], [put_link], [no_nameidata],
904                                           [#include <linux/fs.h>],
905                                           [void],
906                                           [struct inode *inode, void *link_data])
907
908                  dnl Check for header files
909                  AC_CHECK_LINUX_HEADER([config.h])
910                  AC_CHECK_LINUX_HEADER([completion.h])
911                  AC_CHECK_LINUX_HEADER([exportfs.h])
912                  AC_CHECK_LINUX_HEADER([freezer.h])
913                  AC_CHECK_LINUX_HEADER([key-type.h])
914                  AC_CHECK_LINUX_HEADER([semaphore.h])
915                  AC_CHECK_LINUX_HEADER([seq_file.h])
916
917                  dnl Type existence checks
918                  AC_CHECK_LINUX_TYPE([struct vfs_path], [dcache.h])
919                  AC_CHECK_LINUX_TYPE([kuid_t], [uidgid.h])
920
921                  dnl Check for structure elements
922                  AC_CHECK_LINUX_STRUCT([address_space], [backing_dev_info], [fs.h])
923                  AC_CHECK_LINUX_STRUCT([address_space_operations],
924                                        [write_begin], [fs.h])
925                  AC_CHECK_LINUX_STRUCT([backing_dev_info], [name],
926                                        [backing-dev.h])
927                  AC_CHECK_LINUX_STRUCT([cred], [session_keyring], [cred.h])
928                  AC_CHECK_LINUX_STRUCT([ctl_table], [ctl_name], [sysctl.h])
929                  AC_CHECK_LINUX_STRUCT([dentry], [d_u.d_alias], [dcache.h])
930                  AC_CHECK_LINUX_STRUCT([dentry_operations], [d_automount], [dcache.h])
931                  AC_CHECK_LINUX_STRUCT([inode], [i_alloc_sem], [fs.h])
932                  AC_CHECK_LINUX_STRUCT([inode], [i_blkbits], [fs.h])
933                  AC_CHECK_LINUX_STRUCT([inode], [i_blksize], [fs.h])
934                  AC_CHECK_LINUX_STRUCT([inode], [i_mutex], [fs.h])
935                  AC_CHECK_LINUX_STRUCT([inode], [i_security], [fs.h])
936                  AC_CHECK_LINUX_STRUCT([file], [f_path], [fs.h])
937                  AC_CHECK_LINUX_STRUCT([file_operations], [flock], [fs.h])
938                  AC_CHECK_LINUX_STRUCT([file_operations], [iterate], [fs.h])
939                  AC_CHECK_LINUX_STRUCT([file_operations], [read_iter], [fs.h])
940                  AC_CHECK_LINUX_STRUCT([file_operations], [sendfile], [fs.h])
941                  AC_CHECK_LINUX_STRUCT([file_system_type], [mount], [fs.h])
942                  AC_CHECK_LINUX_STRUCT([inode_operations], [truncate], [fs.h])
943                  AC_CHECK_LINUX_STRUCT([key_type], [instantiate_prep], [key-type.h])
944                  AC_CHECK_LINUX_STRUCT([key_type], [match_preparse], [key-type.h])
945                  AC_CHECK_LINUX_STRUCT([key_type], [preparse], [key-type.h])
946                  AC_CHECK_LINUX_STRUCT([msghdr], [msg_iter], [socket.h])
947                  AC_CHECK_LINUX_STRUCT([nameidata], [path], [namei.h])
948                  AC_CHECK_LINUX_STRUCT([proc_dir_entry], [owner], [proc_fs.h])
949                  AC_CHECK_LINUX_STRUCT([super_block], [s_bdi], [fs.h])
950                  AC_CHECK_LINUX_STRUCT([super_block], [s_d_op], [fs.h])
951                  AC_CHECK_LINUX_STRUCT([super_operations], [alloc_inode],
952                                        [fs.h])
953                  AC_CHECK_LINUX_STRUCT([super_operations], [evict_inode],
954                                        [fs.h])
955                  AC_CHECK_LINUX_STRUCT([task_struct], [cred], [sched.h])
956                  AC_CHECK_LINUX_STRUCT([task_struct], [exit_state], [sched.h])
957                  AC_CHECK_LINUX_STRUCT([task_struct], [parent], [sched.h])
958                  AC_CHECK_LINUX_STRUCT([task_struct], [real_parent], [sched.h])
959                  AC_CHECK_LINUX_STRUCT([task_struct], [rlim], [sched.h])
960                  AC_CHECK_LINUX_STRUCT([task_struct], [sig], [sched.h])
961                  AC_CHECK_LINUX_STRUCT([task_struct], [sighand], [sched.h])
962                  AC_CHECK_LINUX_STRUCT([task_struct], [sigmask_lock], [sched.h])
963                  AC_CHECK_LINUX_STRUCT([task_struct], [tgid], [sched.h])
964                  AC_CHECK_LINUX_STRUCT([task_struct], [thread_info], [sched.h])
965                  AC_CHECK_LINUX_STRUCT([task_struct], [total_link_count], [sched.h])
966                  LINUX_SCHED_STRUCT_TASK_STRUCT_HAS_SIGNAL_RLIM
967
968                  dnl Check for typed structure elements
969                  AC_CHECK_LINUX_TYPED_STRUCT([read_descriptor_t],
970                                              [buf], [fs.h])
971
972                  dnl Function existence checks
973
974                  AC_CHECK_LINUX_FUNC([__vfs_read],
975                                      [#include <linux/fs.h>],
976                                      [__vfs_read(NULL, NULL, 0, NULL);])
977                  AC_CHECK_LINUX_FUNC([bdi_init],
978                                      [#include <linux/backing-dev.h>],
979                                      [bdi_init(NULL);])
980                  AC_CHECK_LINUX_FUNC([PageChecked],
981                                      [#include <linux/mm.h>
982 #include <linux/page-flags.h>],
983                                      [struct page *_page;
984                                       int bchecked = PageChecked(_page);])
985                  AC_CHECK_LINUX_FUNC([PageFsMisc],
986                                      [#include <linux/mm.h>
987 #include <linux/page-flags.h>],
988                                      [struct page *_page;
989                                       int bchecked = PageFsMisc(_page);])
990                  AC_CHECK_LINUX_FUNC([clear_inode],
991                                      [#include <linux/fs.h>],
992                                      [clear_inode(NULL);])
993                  AC_CHECK_LINUX_FUNC([current_kernel_time],
994                                      [#include <linux/time.h>],
995                                      [struct timespec s;
996                                       s = current_kernel_time();])
997                  AC_CHECK_LINUX_FUNC([d_alloc_anon],
998                                      [#include <linux/fs.h>],
999                                      [d_alloc_anon(NULL);])
1000                  AC_CHECK_LINUX_FUNC([d_count],
1001                                      [#include <linux/dcache.h>],
1002                                      [d_count(NULL);])
1003                  AC_CHECK_LINUX_FUNC([d_make_root],
1004                                      [#include <linux/fs.h>],
1005                                      [d_make_root(NULL);])
1006                  AC_CHECK_LINUX_FUNC([do_sync_read],
1007                                      [#include <linux/fs.h>],
1008                                      [do_sync_read(NULL, NULL, 0, NULL);])
1009                  AC_CHECK_LINUX_FUNC([find_task_by_pid],
1010                                      [#include <linux/sched.h>],
1011                                      [pid_t p; find_task_by_pid(p);])
1012                  AC_CHECK_LINUX_FUNC([generic_file_aio_read],
1013                                      [#include <linux/fs.h>],
1014                                      [generic_file_aio_read(NULL,NULL,0,0);])
1015                  AC_CHECK_LINUX_FUNC([grab_cache_page_write_begin],
1016                                      [#include <linux/pagemap.h>],
1017                                      [grab_cache_page_write_begin(NULL, 0, 0);])
1018                  AC_CHECK_LINUX_FUNC([hlist_unhashed],
1019                                      [#include <linux/list.h>],
1020                                      [hlist_unhashed(0);])
1021                  AC_CHECK_LINUX_FUNC([ihold],
1022                                      [#include <linux/fs.h>],
1023                                      [ihold(NULL);])
1024                  AC_CHECK_LINUX_FUNC([i_size_read],
1025                                      [#include <linux/fs.h>],
1026                                      [i_size_read(NULL);])
1027                  AC_CHECK_LINUX_FUNC([inode_setattr],
1028                                      [#include <linux/fs.h>],
1029                                      [inode_setattr(NULL, NULL);])
1030                  AC_CHECK_LINUX_FUNC([iter_file_splice_write],
1031                                      [#include <linux/fs.h>],
1032                                      [iter_file_splice_write(NULL,NULL,NULL,0,0);])
1033                  AC_CHECK_LINUX_FUNC([kernel_setsockopt],
1034                                      [#include <linux/net.h>],
1035                                      [kernel_setsockopt(NULL, 0, 0, NULL, 0);])
1036                  AC_CHECK_LINUX_FUNC([page_follow_link],
1037                                      [#include <linux/fs.h>],
1038                                      [page_follow_link(0,0);])
1039                  AC_CHECK_LINUX_FUNC([page_offset],
1040                                      [#include <linux/pagemap.h>],
1041                                      [page_offset(NULL);])
1042                  AC_CHECK_LINUX_FUNC([pagevec_lru_add_file],
1043                                      [#include <linux/pagevec.h>],
1044                                      [__pagevec_lru_add_file(NULL);])
1045                  AC_CHECK_LINUX_FUNC([path_lookup],
1046                                      [#include <linux/fs.h>
1047                                       #include <linux/namei.h>],
1048                                      [path_lookup(NULL, 0, NULL);])
1049                  AC_CHECK_LINUX_FUNC([proc_create],
1050                                      [#include <linux/proc_fs.h>],
1051                                      [proc_create(NULL, 0, NULL, NULL);])
1052                  AC_CHECK_LINUX_FUNC([rcu_read_lock],
1053                                      [#include <linux/rcupdate.h>],
1054                                      [rcu_read_lock();])
1055                  AC_CHECK_LINUX_FUNC([set_nlink],
1056                                      [#include <linux/fs.h>],
1057                                      [set_nlink(NULL, 1);])
1058                  AC_CHECK_LINUX_FUNC([sock_create_kern],
1059                                      [#include <linux/net.h>],
1060                                      [sock_create_kern(0, 0, 0, NULL);])
1061                  AC_CHECK_LINUX_FUNC([sock_create_kern_ns],
1062                                      [#include <linux/net.h>],
1063                                      [sock_create_kern(NULL, 0, 0, 0, NULL);])
1064                  AC_CHECK_LINUX_FUNC([splice_direct_to_actor],
1065                                      [#include <linux/splice.h>],
1066                                      [splice_direct_to_actor(NULL,NULL,NULL);])
1067                  AC_CHECK_LINUX_FUNC([svc_addr_in],
1068                                      [#include <linux/sunrpc/svc.h>],
1069                                      [svc_addr_in(NULL);])
1070                  AC_CHECK_LINUX_FUNC([zero_user_segments],
1071                                      [#include <linux/highmem.h>],
1072                                      [zero_user_segments(NULL, 0, 0, 0, 0);])
1073                  AC_CHECK_LINUX_FUNC([noop_fsync],
1074                                      [#include <linux/fs.h>],
1075                                      [void *address = &noop_fsync; printk("%p\n", address)];)
1076                  AC_CHECK_LINUX_FUNC([kthread_run],
1077                                      [#include <linux/kernel.h>
1078                                       #include <linux/kthread.h>],
1079                                      [kthread_run(NULL, NULL, "test");])
1080
1081                  dnl Consequences - things which get set as a result of the
1082                  dnl                above tests
1083                  AS_IF([test "x$ac_cv_linux_func_d_alloc_anon" = "xno"],
1084                        [AC_DEFINE([AFS_NONFSTRANS], 1,
1085                                   [define to disable the nfs translator])])
1086
1087                  dnl Assorted more complex tests
1088                  LINUX_AIO_NONVECTOR
1089                  LINUX_EXPORTS_PROC_ROOT_FS
1090                  LINUX_KMEM_CACHE_INIT
1091                  LINUX_HAVE_KMEM_CACHE_T
1092                  LINUX_KMEM_CACHE_CREATE_TAKES_DTOR
1093                  LINUX_KMEM_CACHE_CREATE_CTOR_TAKES_VOID
1094                  LINUX_D_PATH_TAKES_STRUCT_PATH
1095                  LINUX_NEW_EXPORT_OPS
1096                  LINUX_INODE_SETATTR_RETURN_TYPE
1097                  LINUX_IOP_I_CREATE_TAKES_NAMEIDATA
1098                  LINUX_IOP_I_LOOKUP_TAKES_NAMEIDATA
1099                  LINUX_IOP_I_PERMISSION_TAKES_FLAGS
1100                  LINUX_IOP_I_PERMISSION_TAKES_NAMEIDATA
1101                  LINUX_IOP_I_PUT_LINK_TAKES_COOKIE
1102                  LINUX_DOP_D_DELETE_TAKES_CONST
1103                  LINUX_DOP_D_REVALIDATE_TAKES_NAMEIDATA
1104                  LINUX_FOP_F_FLUSH_TAKES_FL_OWNER_T
1105                  LINUX_FOP_F_FSYNC_TAKES_DENTRY
1106                  LINUX_FOP_F_FSYNC_TAKES_RANGE
1107                  LINUX_AOP_WRITEBACK_CONTROL
1108                  LINUX_FS_STRUCT_FOP_HAS_SPLICE
1109                  LINUX_KERNEL_POSIX_LOCK_FILE_WAIT_ARG
1110                  LINUX_POSIX_TEST_LOCK_RETURNS_CONFLICT
1111                  LINUX_POSIX_TEST_LOCK_CONFLICT_ARG
1112                  LINUX_KERNEL_SOCK_CREATE
1113                  LINUX_EXPORTS_KEY_TYPE_KEYRING
1114                  LINUX_NEED_RHCONFIG
1115                  LINUX_RECALC_SIGPENDING_ARG_TYPE
1116                  LINUX_EXPORTS_TASKLIST_LOCK
1117                  LINUX_GET_SB_HAS_STRUCT_VFSMOUNT
1118                  LINUX_STATFS_TAKES_DENTRY
1119                  LINUX_REFRIGERATOR
1120                  LINUX_HAVE_TRY_TO_FREEZE
1121                  LINUX_LINUX_KEYRING_SUPPORT
1122                  LINUX_KEY_ALLOC_NEEDS_STRUCT_TASK
1123                  LINUX_KEY_ALLOC_NEEDS_CRED
1124                  LINUX_INIT_WORK_HAS_DATA
1125                  LINUX_REGISTER_SYSCTL_TABLE_NOFLAG
1126                  LINUX_HAVE_DCACHE_LOCK
1127                  LINUX_D_COUNT_IS_INT
1128                  LINUX_IOP_MKDIR_TAKES_UMODE_T
1129                  LINUX_IOP_CREATE_TAKES_UMODE_T
1130                  LINUX_EXPORT_OP_ENCODE_FH_TAKES_INODES
1131                  LINUX_KMAP_ATOMIC_TAKES_NO_KM_TYPE
1132                  LINUX_DENTRY_OPEN_TAKES_PATH
1133                  LINUX_D_ALIAS_IS_HLIST
1134                  LINUX_HLIST_ITERATOR_NO_NODE
1135                  LINUX_IOP_I_CREATE_TAKES_BOOL
1136                  LINUX_DOP_D_REVALIDATE_TAKES_UNSIGNED
1137                  LINUX_IOP_LOOKUP_TAKES_UNSIGNED
1138                  LINUX_D_INVALIDATE_IS_VOID
1139
1140                  dnl If we are guaranteed that keyrings will work - that is
1141                  dnl  a) The kernel has keyrings enabled
1142                  dnl  b) The code is new enough to give us a key_type_keyring
1143                  dnl then we just disable syscall probing unless we've been
1144                  dnl told otherwise
1145
1146                  AS_IF([test "$enable_linux_syscall_probing" = "maybe"],
1147                    [AS_IF([test "$ac_cv_linux_keyring_support" = "yes" -a "$ac_cv_linux_exports_key_type_keyring" = "yes"],
1148                           [enable_linux_syscall_probing="no"],
1149                           [enable_linux_syscall_probing="yes"])
1150                  ])
1151
1152                  dnl Syscall probing needs a few tests of its own, and just
1153                  dnl won't work if the kernel doesn't export init_mm
1154                  AS_IF([test "$enable_linux_syscall_probing" = "yes"], [
1155                    LINUX_EXPORTS_INIT_MM
1156                    AS_IF([test "$ac_cv_linux_exports_init_mm" = "no"], [
1157                      AC_MSG_ERROR(
1158                        [Can't do syscall probing without exported init_mm])
1159                    ])
1160                    LINUX_EXPORTS_SYS_CHDIR
1161                    LINUX_EXPORTS_SYS_OPEN
1162                    AC_DEFINE(ENABLE_LINUX_SYSCALL_PROBING, 1,
1163                              [define to enable syscall table probes])
1164                  ])
1165
1166                  dnl Packaging and SMP build
1167                  if test "x$with_linux_kernel_packaging" != "xyes" ; then
1168                    LINUX_WHICH_MODULES
1169                  else
1170                    AC_SUBST(MPS,'SP')
1171                  fi
1172
1173                  dnl Syscall probing
1174                  if test "x$ac_cv_linux_config_modversions" = "xno" -o $AFS_SYSKVERS -ge 26; then
1175                    AS_IF([test "$enable_linux_syscall_probing" = "yes"], [
1176                      AC_MSG_WARN([Cannot determine sys_call_table status. assuming it isn't exported])
1177                    ])
1178                    ac_cv_linux_exports_sys_call_table=no
1179                    if test -f "$LINUX_KERNEL_PATH/include/asm/ia32_unistd.h"; then
1180                      ac_cv_linux_exports_ia32_sys_call_table=yes
1181                    fi
1182                  else
1183                    LINUX_EXPORTS_KALLSYMS_ADDRESS
1184                    LINUX_EXPORTS_KALLSYMS_SYMBOL
1185                    LINUX_EXPORTS_SYS_CALL_TABLE
1186                    LINUX_EXPORTS_IA32_SYS_CALL_TABLE
1187                    if test "x$ac_cv_linux_exports_sys_call_table" = "xno"; then
1188                          linux_syscall_method=none
1189                          if test "x$ac_cv_linux_exports_init_mm" = "xyes"; then
1190                             linux_syscall_method=scan
1191                             if test "x$ac_cv_linux_exports_kallsyms_address" = "xyes"; then
1192                                linux_syscall_method=scan_with_kallsyms_address
1193                             fi
1194                          fi
1195                          if test "x$ac_cv_linux_exports_kallsyms_symbol" = "xyes"; then
1196                             linux_syscall_method=kallsyms_symbol
1197                          fi
1198                          if test "x$linux_syscall_method" = "xnone"; then
1199                             AC_MSG_WARN([no available sys_call_table access method -- guessing scan])
1200                             linux_syscall_method=scan
1201                          fi
1202                    fi
1203                  fi
1204                  if test -f "$LINUX_KERNEL_PATH/include/linux/in_systm.h"; then
1205                   AC_DEFINE(HAVE_IN_SYSTM_H, 1, [define if you have in_systm.h header file])
1206                  fi
1207                  if test -f "$LINUX_KERNEL_PATH/include/linux/mm_inline.h"; then
1208                   AC_DEFINE(HAVE_MM_INLINE_H, 1, [define if you have mm_inline.h header file])
1209                  fi
1210                  if test "x$ac_cv_linux_kernel_page_follow_link" = "xyes" -o "x$ac_cv_linux_func_i_put_link_takes_cookie" = "xyes"; then
1211                   AC_DEFINE(USABLE_KERNEL_PAGE_SYMLINK_CACHE, 1, [define if your kernel has a usable symlink cache API])
1212                  else
1213                   AC_MSG_WARN([your kernel does not have a usable symlink cache API])
1214                  fi
1215                 :
1216                 fi
1217                 if test "x$enable_linux_d_splice_alias_extra_iput" = xyes; then
1218                     AC_DEFINE(D_SPLICE_ALIAS_LEAK_ON_ERROR, 1, [for internal use])
1219                 fi
1220 dnl Linux-only, but just enable always.
1221                 AC_DEFINE(AFS_CACHE_BYPASS, 1, [define to activate cache bypassing Unix client])
1222 esac
1223
1224 AC_CACHE_CHECK([if compiler has __sync_add_and_fetch],
1225     [ac_cv_sync_fetch_and_add],
1226     [AC_TRY_LINK(, [int var; return __sync_add_and_fetch(&var, 1);],
1227                     [ac_cv_sync_fetch_and_add=yes],
1228                     [ac_cv_sync_fetch_and_add=no])
1229 ])
1230 AS_IF([test "$ac_cv_sync_fetch_and_add" = "yes"],
1231       [AC_DEFINE(HAVE_SYNC_FETCH_AND_ADD, 1,
1232                 [define if your C compiler has __sync_add_and_fetch])])
1233
1234 AC_CACHE_CHECK([if struct sockaddr has sa_len field],
1235     [ac_cv_sockaddr_len],
1236     [AC_TRY_COMPILE( [#include <sys/types.h>
1237 #include <sys/socket.h>],
1238                      [struct sockaddr *a; a->sa_len=0;],
1239                      [ac_cv_sockaddr_len=yes],
1240                      [ac_cv_sockaddr_len=no])
1241 ])
1242 AS_IF([test "$ac_cv_sockaddr_len" = "yes"],
1243       [AC_DEFINE(STRUCT_SOCKADDR_HAS_SA_LEN, 1,
1244                  [define if you struct sockaddr sa_len])])
1245
1246 if test "x${MKAFS_OSTYPE}" = "xIRIX"; then
1247         echo Skipping library tests because they confuse Irix.
1248 else
1249   AC_SEARCH_LIBS([socket], [socket inet])
1250   AC_SEARCH_LIBS([connect], [nsl])
1251   AC_SEARCH_LIBS([gethostbyname], [dns nsl resolv])
1252
1253   dnl darwin wants it, aix hates it
1254   AC_MSG_CHECKING(for the useability of arpa/nameser_compat.h)
1255   AC_TRY_COMPILE([
1256   #include <stdlib.h>
1257   #include <stdio.h>
1258   #include <sys/types.h>
1259   #include <sys/socket.h>
1260   #include <netinet/in.h>
1261   #include <arpa/inet.h>
1262   #include <arpa/nameser.h>
1263   #include <arpa/nameser_compat.h>
1264   #include <resolv.h>
1265   ], [static int i; i = 0;],
1266   [AC_MSG_RESULT(yes)
1267    AC_DEFINE(HAVE_ARPA_NAMESER_COMPAT_H, 1, [define if arpa/nameser_compat.h exists])],
1268   [AC_MSG_RESULT(no)
1269    ])
1270
1271   openafs_save_libs="$LIBS"
1272   AC_MSG_CHECKING([for res_search])
1273   AC_FUNC_RES_SEARCH
1274
1275   if test "$ac_cv_func_res_search" = no; then
1276       for lib in dns nsl resolv; do
1277         if test "$ac_cv_func_res_search" != yes; then
1278           LIBS="-l$lib $LIBS"
1279           AC_FUNC_RES_SEARCH
1280           LIBS="$openafs_save_libs"
1281         fi
1282       done    
1283       if test "$ac_cv_func_res_search" = yes; then
1284         LIB_AFSDB="-l$lib"
1285         AC_DEFINE(HAVE_RES_SEARCH, 1, [])
1286         AC_MSG_RESULT([yes, in lib$lib])
1287       else
1288         AC_MSG_RESULT(no)
1289       fi
1290   else
1291     AC_DEFINE(HAVE_RES_SEARCH, 1, [])
1292     AC_MSG_RESULT(yes)
1293   fi
1294   
1295 fi
1296 XLIBS="$LIB_AFSDB $XLIBS"
1297
1298 AC_CHECK_RESOLV_RETRANS
1299
1300 AC_CACHE_CHECK([for setsockopt(, SOL_IP, IP_RECVERR)],
1301     [ac_cv_setsockopt_iprecverr],
1302     [AC_TRY_COMPILE( [
1303 #include <sys/types.h>
1304 #include <sys/socket.h>
1305 #include <netinet/in.h>],
1306 [int on=1;
1307 setsockopt(0, SOL_IP, IP_RECVERR, &on, sizeof(on));],
1308         [ac_cv_setsockopt_iprecverr=yes],
1309         [ac_cv_setsockopt_iprecverr=no])])
1310
1311 AS_IF([test "$ac_cv_setsockopt_iprecverr" = "yes"],
1312       [AC_DEFINE([HAVE_SETSOCKOPT_IP_RECVERR], [1],
1313                  [define if we can receive socket errors via IP_RECVERR])])
1314
1315 PTHREAD_LIBS=error
1316 if test "x$MKAFS_OSTYPE" = OBSD; then
1317         PTHREAD_LIBS="-pthread"
1318 fi
1319 if test "x$MKAFS_OSTYPE" = xDFBSD; then
1320         PTHREAD_LIBS="-pthread"
1321 fi
1322 if test "x$PTHREAD_LIBS" = xerror; then
1323         AC_CHECK_LIB(pthread, pthread_attr_init,
1324                 PTHREAD_LIBS="-lpthread")
1325 fi
1326 if test "x$PTHREAD_LIBS" = xerror; then
1327         AC_CHECK_LIB(pthreads, pthread_attr_init,
1328                 PTHREAD_LIBS="-lpthreads")
1329 fi
1330 if test "x$PTHREAD_LIBS" = xerror; then
1331         AC_CHECK_LIB(c_r, pthread_attr_init,
1332                 PTHREAD_LIBS="-lc_r")
1333 fi
1334 if test "x$PTHREAD_LIBS" = xerror; then
1335         AC_CHECK_FUNC(pthread_attr_init, PTHREAD_LIBS="")
1336 fi
1337 if test "x$PTHREAD_LIBS" = xerror; then
1338         # pthread_attr_init is a macro under HPUX 11.0 and 11.11
1339         AC_CHECK_LIB(pthread, pthread_attr_destroy,
1340                 PTHREAD_LIBS="-lpthread")
1341 fi
1342 if test "x$PTHREAD_LIBS" = xerror; then
1343         AC_MSG_WARN(*** Unable to locate working posix thread library ***)
1344 fi
1345 AC_SUBST(PTHREAD_LIBS)
1346
1347 HOST_CPU="$host_cpu"
1348
1349 if test "x$with_bsd_kernel_headers" != "x"; then
1350         BSD_KERNEL_PATH="$with_bsd_kernel_headers"
1351 else
1352         BSD_KERNEL_PATH="/usr/src/sys"
1353 fi
1354
1355 if test "x$with_bsd_kernel_build" != "x"; then
1356         BSD_KERNEL_BUILD="$with_bsd_kernel_build"
1357 else
1358         case $AFS_SYSNAME in
1359                 *_fbsd_*)
1360                         BSD_KERNEL_BUILD="${BSD_KERNEL_PATH}/${HOST_CPU}/compile/GENERIC"
1361                         ;;
1362                 *_nbsd*)
1363                         BSD_KERNEL_BUILD="${BSD_KERNEL_PATH}/arch/${HOST_CPU}/compile/GENERIC"
1364         esac
1365 fi
1366
1367 # Fast restart
1368 if test "$enable_supergroups" = "yes"; then
1369         AC_DEFINE(SUPERGROUPS, 1, [define if you want to have support for nested pts groups])
1370 fi
1371
1372 if test "$enable_bitmap_later" = "yes"; then
1373         AC_DEFINE(BITMAP_LATER, 1, [define if you want to salvager to check bitmasks later])
1374 fi
1375
1376 if test "$enable_unix_sockets" = "yes"; then
1377         AC_DEFINE(USE_UNIX_SOCKETS, 1, [define if you want to use UNIX sockets for fssync.])
1378         USE_UNIX_SOCKETS="yes"
1379 else
1380         USE_UNIX_SOCKETS="no"
1381 fi
1382 AC_SUBST(USE_UNIX_SOCKETS)
1383
1384 if test "$enable_namei_fileserver" = "yes"; then
1385         AC_DEFINE(AFS_NAMEI_ENV, 1, [define if you want to want namei fileserver])
1386         VFSCK=""
1387 else
1388         if test "$enable_namei_fileserver" = "default"; then
1389                 case $host in
1390                         *-solaris2.10*)
1391                                 AC_MSG_WARN(Some Solaris 10 versions are not safe with the inode fileserver. Forcing namei. Override with --disable-namei-fileserver)
1392                                 AC_DEFINE(AFS_NAMEI_ENV, 1, [define if you want to want namei fileserver])
1393                                 VFSCK=""
1394                                 ;;
1395                         *-solaris2.11*)
1396                                 AC_MSG_WARN(Solaris 11 versions are not safe with the inode fileserver. Forcing namei. Override with --disable-namei-fileserver)
1397                                 AC_DEFINE(AFS_NAMEI_ENV, 1, [define if you want to want namei fileserver])
1398                                 VFSCK=""
1399                                 ;;
1400                         *)
1401                                 VFSCK="vfsck"
1402                                 ;;
1403                 esac
1404         else
1405                 VFSCK="vfsck"
1406         fi
1407 fi
1408
1409 dnl check for tivoli
1410 AC_MSG_CHECKING(for tivoli tsm butc support)
1411 XBSA_CFLAGS=""
1412 if test "$enable_tivoli_tsm" = "yes"; then
1413         XBSADIR1=/usr/tivoli/tsm/client/api/bin/xopen
1414         XBSADIR2=/opt/tivoli/tsm/client/api/bin/xopen
1415         XBSADIR3=/usr/tivoli/tsm/client/api/bin/sample
1416         XBSADIR4=/opt/tivoli/tsm/client/api/bin/sample
1417
1418         if test -r "$XBSADIR3/dsmapifp.h"; then
1419                 XBSA_CFLAGS="-Dxbsa -DNEW_XBSA -I$XBSADIR3"
1420                 XBSA_XLIBS="-ldl"
1421                 AC_MSG_RESULT([yes, $XBSA_CFLAGS])
1422         elif test -r "$XBSADIR4/dsmapifp.h"; then
1423                 XBSA_CFLAGS="-Dxbsa -DNEW_XBSA -I$XBSADIR4"
1424                 XBSA_XLIBS="-ldl"
1425                 AC_MSG_RESULT([yes, $XBSA_CFLAGS])
1426         elif test -r "$XBSADIR1/xbsa.h"; then
1427                 XBSA_CFLAGS="-Dxbsa -I$XBSADIR1"
1428                 XBSA_XLIBS=""
1429                 AC_MSG_RESULT([yes, $XBSA_CFLAGS])
1430         elif test -r "$XBSADIR2/xbsa.h"; then
1431                 XBSA_CFLAGS="-Dxbsa -I$XBSADIR2"
1432                 XBSA_XLIBS=""
1433                 AC_MSG_RESULT([yes, $XBSA_CFLAGS])
1434         else
1435                 AC_MSG_RESULT([no, missing xbsa.h and dsmapifp.h header files])
1436         fi
1437 else
1438         AC_MSG_RESULT([no])
1439 fi
1440 AC_SUBST(XBSA_CFLAGS)
1441 AC_SUBST(XBSA_XLIBS) 
1442 XLIBS="$XBSA_XLIBS $XLIBS"
1443
1444 dnl checks for header files.
1445 AC_HEADER_STDC
1446 AC_HEADER_SYS_WAIT
1447 AC_HEADER_DIRENT
1448 AC_CHECK_HEADERS([ \
1449                    arpa/inet.h \
1450                    arpa/nameser.h \
1451                    curses.h\
1452                    direct.h \
1453                    errno.h \
1454                    fcntl.h \
1455                    grp.h \
1456                    math.h \
1457                    mntent.h \
1458                    ncurses.h \
1459                    ncurses/ncurses.h \
1460                    netdb.h \
1461                    netinet/in.h \
1462                    pthread_np.h \
1463                    pwd.h \
1464                    regex.h \
1465                    security/pam_appl.h \
1466                    signal.h \
1467                    stdint.h \
1468                    stdio_ext.h \
1469                    stdlib.h \
1470                    string.h \
1471                    strings.h \
1472                    sys/bitypes.h \
1473                    sys/bswap.h \
1474                    sys/dk.h \
1475                    sys/fcntl.h \
1476                    sys/file.h \
1477                    sys/fs_types.h \
1478                    sys/fstyp.h \
1479                    sys/ioctl.h \
1480                    sys/ipc.h \
1481                    sys/lockf.h \
1482                    sys/map.h \
1483                    sys/mount.h \
1484                    sys/mntent.h \
1485                    sys/mnttab.h \
1486                    sys/pag.h \
1487                    sys/param.h \
1488                    sys/resource.h \
1489                    sys/select.h \
1490                    sys/statfs.h \
1491                    sys/statvfs.h \
1492                    sys/socket.h \
1493                    sys/sysctl.h \
1494                    sys/time.h \
1495                    sys/types.h \
1496                    sys/uio.h \
1497                    sys/un.h \
1498                    sys/vfs.h \
1499                    syslog.h \
1500                    termios.h \
1501                    time.h \
1502                    ucontext.h \
1503                    unistd.h \
1504                    windows.h \
1505                 ])
1506
1507 AC_CHECK_HEADERS([resolv.h], [], [], [AC_INCLUDES_DEFAULT
1508 #ifdef HAVE_NETINET_IN_H
1509 # include <netinet/in.h>
1510 #endif])
1511
1512 AC_CHECK_HEADERS([net/if.h],[],[],[AC_INCLUDES_DEFAULT
1513 #ifdef HAVE_SYS_SOCKET_H
1514 # include <sys/socket.h>
1515 #endif])
1516
1517 AC_CHECK_HEADERS([netinet/if_ether.h],[],[],[AC_INCLUDES_DEFAULT
1518 #ifdef HAVE_SYS_SOCKET_H
1519 # include <sys/socket.h>
1520 #endif
1521 #ifdef HAVE_NETINET_IN_H
1522 # include <netinet/in.h>
1523 #endif
1524 #ifdef HAVE_NET_IF_H
1525 # include <net/if.h>
1526 #endif])
1527
1528 AC_CHECK_HEADERS([security/pam_modules.h],[],[],[AC_INCLUDES_DEFAULT
1529 #ifdef HAVE_SECURITY_PAM_APPL_H
1530 # include <security/pam_appl.h>
1531 #endif])
1532
1533 AC_CHECK_HEADERS(linux/errqueue.h,,,[#include <linux/types.h>])
1534
1535 AC_CHECK_TYPES([fsblkcnt_t],,,[
1536 #include <sys/types.h>
1537 #ifdef HAVE_SYS_BITYPES_H
1538 #include <sys/bitypes.h>
1539 #endif
1540 #ifdef HAVE_SYS_STATFS_H
1541 #include <sys/statfs.h>
1542 #endif
1543 #ifdef HAVE_SYS_STATVFS_H
1544 #include <sys/statvfs.h>
1545 #endif
1546 ])
1547
1548 dnl see what struct stat has for timestamps
1549 AC_CHECK_MEMBERS([struct stat.st_ctimespec, struct stat.st_ctimensec])
1550
1551 OPENAFS_TEST_PACKAGE(libintl,[#include <libintl.h>],[-lintl],,,INTL)
1552
1553 if test "$enable_debug_locks" = yes; then
1554         AC_DEFINE(OPR_DEBUG_LOCKS, 1, [turn on lock debugging in opr])
1555 fi
1556
1557 if test "$ac_cv_header_security_pam_modules_h" = yes -a "$enable_pam" = yes; then
1558         HAVE_PAM="YES"
1559 else
1560         HAVE_PAM="no"
1561 fi
1562 AC_SUBST(HAVE_PAM)
1563
1564 if test "$enable_login" = yes; then
1565         BUILD_LOGIN="yes"
1566 else
1567         BUILD_LOGIN="no"
1568 fi
1569 AC_SUBST(BUILD_LOGIN)
1570
1571 if test "$enable_kauth" = yes; then
1572         INSTALL_KAUTH="yes"
1573 else
1574         INSTALL_KAUTH="no"
1575 fi
1576 AC_SUBST(INSTALL_KAUTH)
1577
1578 AC_CHECK_FUNCS([ \
1579         arc4random \
1580         fcntl \
1581         fseeko64 \
1582         ftello64 \
1583         getcwd \
1584         getegid \
1585         geteuid \
1586         getgid \
1587         getuid \
1588         getrlimit \
1589         issetugid \
1590         mkstemp \
1591         poll \
1592         pread \
1593         preadv \
1594         preadv64 \
1595         pwrite \
1596         pwritev \
1597         pwritev64 \
1598         regcomp \
1599         regerror \
1600         regexec \
1601         setitimer \
1602         setvbuf \
1603         sigaction \
1604         strcasestr \
1605         strerror \
1606         sysconf \
1607         sysctl \
1608         tdestroy \
1609         timegm \
1610 ])
1611
1612 OPENAFS_ROKEN()
1613 OPENAFS_HCRYPTO()
1614 OPENAFS_CURSES()
1615 OPENAFS_C_ATTRIBUTE()
1616
1617 dnl Functions that Heimdal's libroken provides, but that we
1618 dnl haven't found a need for yet, and so haven't imported
1619 AC_CHECK_FUNCS([ \
1620         chown \
1621         fchown \
1622         gethostname \
1623         lstat \
1624         inet_aton \
1625         putenv \
1626         readv \
1627         setenv \
1628         strdup \
1629         strftime \
1630         strndup \
1631         strsep \
1632         unsetenv \
1633 ])
1634
1635 dnl Functions that are in objects that we always build from libroken
1636 AC_CHECK_FUNCS([ \
1637         asprintf \
1638         asnprintf \
1639         vasprintf \
1640         vasnprintf \
1641         vsnprintf \
1642         snprintf \
1643 ])
1644
1645 dnl Functions that we're going to try and get from libroken
1646 AC_REPLACE_FUNCS([ \
1647         daemon \
1648         ecalloc \
1649         emalloc \
1650         erealloc \
1651         err \
1652         errx \
1653         flock \
1654         freeaddrinfo \
1655         gai_strerror \
1656         getaddrinfo \
1657         getdtablesize \
1658         getnameinfo \
1659         getopt \
1660         getprogname \
1661         gettimeofday \
1662         inet_ntop \
1663         inet_pton \
1664         localtime_r \
1665         mkstemp \
1666         setenv \
1667         setprogname \
1668         strcasecmp \
1669         strlcat \
1670         strnlen \
1671         strlcpy \
1672         strsep \
1673         tdelete \
1674         tfind \
1675         tsearch \
1676         twalk \
1677         unsetenv \
1678         verr \
1679         verrx \
1680         vsyslog \
1681         vwarn \
1682         vwarnx \
1683         warn \
1684         warnx \
1685 ])
1686
1687 dnl Headers that we're going to try and get from libroken
1688 AC_CHECK_HEADERS([ \
1689         err.h \
1690         search.h \
1691 ])
1692
1693 AC_CHECK_DECLS([h_errno], [], [], [
1694 #include <sys/types.h>
1695 #ifdef HAVE_NETDB_H
1696 #include <netdb.h>
1697 #endif
1698 ])
1699
1700 AC_HEADER_TIME
1701
1702 ROKEN_HEADERS=
1703 AS_IF([test "$ac_cv_header_err_h" != "yes" ],
1704       [ROKEN_HEADERS="$ROKEN_HEADERS \$(TOP_INCDIR)/err.h"],
1705       [])
1706 AC_SUBST(ROKEN_HEADERS)
1707
1708 dnl Stuff that's harder ...
1709 AC_MSG_CHECKING([for bswap16])
1710 AC_LINK_IFELSE([AC_LANG_PROGRAM([
1711 #ifdef HAVE_SYS_TYPES_H
1712 #include <sys/types.h>
1713 #endif
1714 #ifdef HAVE_SYS_BSWAP_H
1715 #include <sys/bswap.h>
1716 #endif
1717 ],
1718 [short a, b; b = bswap16(a); ])],
1719 [AC_MSG_RESULT(yes)
1720  AC_DEFINE(HAVE_BSWAP16, 1, [Define to 1 if you have the bswap16 function])
1721 ],
1722 [AC_MSG_RESULT(no)])
1723
1724 AC_MSG_CHECKING([for bswap32])
1725 AC_LINK_IFELSE([AC_LANG_PROGRAM([#ifdef HAVE_SYS_TYPES_H
1726 #include <sys/types.h>
1727 #endif
1728 #ifdef HAVE_SYS_BSWAP_H
1729 #include <sys/bswap.h>
1730 #endif
1731 ],
1732 [int a, b; b = bswap32(a); ])],
1733 [AC_MSG_RESULT(yes)
1734  AC_DEFINE(HAVE_BSWAP32, 1, [Define to 1 if you have the bswap32 function])
1735 ],
1736 [AC_MSG_RESULT(no)])
1737
1738 case $AFS_SYSNAME in
1739 *hp_ux* | *hpux*)
1740    AC_MSG_WARN([Some versions of HP-UX have a buggy positional I/O implementation. Forcing no positional I/O.])
1741    ;;
1742 *)
1743    AC_MSG_CHECKING([for positional I/O])
1744    if test "$ac_cv_func_pread" = "yes" && \
1745            test "$ac_cv_func_pwrite" = "yes"; then
1746       AC_DEFINE(HAVE_PIO, 1, [define if you have pread() and pwrite()])
1747       AC_MSG_RESULT(yes)
1748    else
1749      AC_MSG_RESULT(no)
1750    fi
1751    AC_MSG_CHECKING([for vectored positional I/O])
1752    AS_IF([test "$ac_cv_func_preadv" = "yes" -a \
1753                "$ac_cv_func_pwritev" = "yes" -a \
1754                "$ac_cv_func_preadv64" = "yes" -a \
1755                "$ac_cv_func_pwritev64" = "yes"],
1756          [AC_DEFINE(HAVE_PIOV, 1, [define if you have preadv() and pwritev()])
1757           AC_MSG_RESULT(yes)],
1758          [AC_MSG_RESULT(no)])
1759    ;;
1760 esac
1761
1762 AC_MSG_CHECKING([for POSIX regex library])
1763 if test "$ac_cv_header_regex_h" = "yes" && \
1764         test "$ac_cv_func_regcomp" = "yes" && \
1765         test "$ac_cv_func_regexec" = "yes" && \
1766         test "$ac_cv_func_regerror" = "yes"; then
1767     AC_DEFINE(HAVE_POSIX_REGEX, 1, [define if you have POSIX regex library])
1768     AC_MSG_RESULT(yes)
1769 else
1770     AC_MSG_RESULT(no)
1771 fi
1772
1773 dnl Look for "non-portable" pthreads functions.
1774 save_LIBS="$LIBS"
1775 LIBS="$LIBS $PTHREAD_LIBS"
1776 AC_CHECK_FUNCS([ \
1777         pthread_set_name_np \
1778         pthread_setname_np \
1779 ])
1780
1781 dnl Sadly, there are three different versions of pthread_setname_np.
1782 dnl Try to cater for all of them.
1783 if test "$ac_cv_func_pthread_setname_np" = "yes" ; then
1784     AC_MSG_CHECKING([for signature of pthread_setname_np])
1785     AC_TRY_COMPILE([
1786 #include <pthread.h>
1787 #ifdef HAVE_PTHREAD_NP_H
1788 #include <pthread_np.h>
1789 #endif
1790 ], [pthread_setname_np(pthread_self(), "test", (void *)0)], [
1791         AC_MSG_RESULT([three arguments])
1792         pthread_setname_np_args=3], [
1793         AC_TRY_COMPILE([
1794 #include <pthread.h>
1795 #ifdef HAVE_PTHREAD_NP_H
1796 #include <pthread_np.h>
1797 #endif
1798 ], [pthread_setname_np(pthread_self(), "test")], [
1799             AC_MSG_RESULT([two arguments])
1800             pthread_setname_np_args=2], [
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("test")], [
1807                 AC_MSG_RESULT([one argument])
1808                 pthread_setname_np_args=1], [pthread_setname_np_args=0])
1809 ])
1810 ])
1811 AC_DEFINE_UNQUOTED([PTHREAD_SETNAME_NP_ARGS], $pthread_setname_np_args, [Number of arguments required by pthread_setname_np() function])
1812 fi
1813 LIBS="$save_LIBS"
1814
1815 openafs_cv_saved_CFLAGS="$CFLAGS"
1816 CFLAGS="$CFLAGS $XCFLAGS_NOCHECKING"
1817
1818 AC_TYPE_SIGNAL
1819 OPENAFS_RETSIGTYPE
1820 AC_CHECK_SIZEOF(void *)
1821 AC_CHECK_SIZEOF(unsigned long long)
1822 AC_CHECK_SIZEOF(unsigned long)
1823 AC_CHECK_SIZEOF(unsigned int)
1824 AC_TYPE_INTPTR_T
1825 AC_TYPE_UINTPTR_T
1826 AC_TYPE_SSIZE_T
1827 AC_CHECK_TYPE([sig_atomic_t],[],
1828     [AC_DEFINE([sig_atomic_t], [int],
1829         [Define to int if <signal.h> does not define.])],
1830 [#include <sys/types.h>
1831 #include <signal.h>])
1832 AC_CHECK_TYPE([socklen_t],[],
1833     [AC_DEFINE([socklen_t], [int],
1834         [Define to int if <sys/socket.h> does not define.])],
1835 [#include <sys/types.h>
1836 #include <sys/socket.h>])
1837 AC_CHECK_TYPES(off64_t)
1838 AC_CHECK_TYPES([ssize_t], [], [], [#include <unistd.h>])
1839 AC_CHECK_TYPES([struct winsize], [], [], [
1840 #ifdef HAVE_TERMIOS_H
1841 # include <termios.h>
1842 #else
1843 # include <sys/termios.h>
1844 #endif
1845 #include <sys/ioctl.h>])
1846 AC_CHECK_TYPES([sa_family_t, socklen_t, struct sockaddr,
1847                 struct sockaddr_storage],
1848                [], [], [
1849 #include <sys/types.h>
1850 #include <sys/socket.h>
1851 ])
1852 AC_CHECK_TYPES([sa_family_t], [], [], [
1853 #include <sys/types.h>
1854 #include <sys/socket.h>
1855 ])
1856 AC_CHECK_TYPES([struct addrinfo], [], [], [
1857 #include <sys/types.h>
1858 #ifdef HAVE_NETDB_H
1859 #include <netdb.h>
1860 #endif
1861 ])
1862 AC_CHECK_TYPES([long long], [], [], [])
1863
1864 AC_SIZEOF_TYPE(long)
1865
1866 CFLAGS="$openafs_cv_saved_CFLAGS"
1867
1868 RRA_HEADER_PAM_CONST
1869
1870
1871 dnl Directory PATH handling
1872 if test "x$enable_transarc_paths" = "xyes"  ; then 
1873     afsconfdir=${afsconfdir=/usr/afs/etc}
1874     viceetcdir=${viceetcdir=/usr/vice/etc}
1875     afskerneldir=${afskerneldir=${viceetcdir}}
1876     afssrvbindir=${afssrvbindir=/usr/afs/bin}
1877     afssrvsbindir=${afssrvsbindir=/usr/afs/bin}
1878     afssrvlibexecdir=${afssrvlibexecdir=/usr/afs/bin}
1879     afsdbdir=${afsdbdir=/usr/afs/db}
1880     afslogsdir=${afslogsdir=/usr/afs/logs}
1881     afslocaldir=${afslocaldir=/usr/afs/local}
1882     afsbackupdir=${afsbackupdir=/usr/afs/backup}
1883     afsbosconfigdir=${afsbosconfigdir=/usr/afs/local}
1884     afsdatadir=${afsdatadir=/usr/vice/etc}
1885 else 
1886     afsconfdir=${afsconfdir='${sysconfdir}/openafs/server'}
1887     viceetcdir=${viceetcdir='${sysconfdir}/openafs'}
1888     afskerneldir=${afskerneldir='${libdir}/openafs'}
1889     afssrvbindir=${afssrvbindir='${bindir}'}
1890     afssrvsbindir=${afssrvsbindir='${sbindir}'}
1891     afssrvlibexecdir=${afssrvlibexecdir='${libexecdir}/openafs'}
1892     afsdbdir=${afsdbdir='${localstatedir}/openafs/db'}
1893     afslogsdir=${afslogsdir='${localstatedir}/openafs/logs'}
1894     afslocaldir=${afslocaldir='${localstatedir}/openafs'}
1895     afsbackupdir=${afsbackupdir='${localstatedir}/openafs/backup'}
1896     afsbosconfigdir=${afsbosconfigdir='${sysconfdir}/openafs'}
1897     afsdatadir=${afsdatadir='${datadir}/openafs'}
1898 fi
1899 AC_SUBST(afsconfdir)
1900 AC_SUBST(viceetcdir)
1901 AC_SUBST(afskerneldir)
1902 AC_SUBST(afssrvbindir)
1903 AC_SUBST(afssrvsbindir)
1904 AC_SUBST(afssrvlibexecdir)
1905 AC_SUBST(afsdbdir)
1906 AC_SUBST(afslogsdir)
1907 AC_SUBST(afslocaldir)
1908 AC_SUBST(afsbackupdir)
1909 AC_SUBST(afsbosconfigdir)
1910 AC_SUBST(afsdatadir)
1911
1912 if test "x$enable_kernel_module" = "xyes"; then
1913 ENABLE_KERNEL_MODULE=libafs
1914 fi
1915
1916 if test "x$enable_pthreaded_ubik" = "xyes"; then
1917 ENABLE_PTHREADED_UBIK=yes
1918 fi
1919
1920 AC_SUBST(VFSCK)
1921 AC_SUBST(AFS_SYSNAME)
1922 AC_SUBST(AFS_PARAM_COMMON)
1923 AC_SUBST(ENABLE_KERNEL_MODULE)
1924 AC_SUBST(ENABLE_PTHREADED_UBIK)
1925 AC_SUBST(LIB_AFSDB)
1926 AC_SUBST(LINUX_KERNEL_PATH)
1927 AC_SUBST(LINUX_KERNEL_BUILD)
1928 AC_SUBST(HOST_CPU)
1929 AC_SUBST(BSD_KERNEL_PATH)
1930 AC_SUBST(BSD_KERNEL_BUILD)
1931 AC_SUBST(LINUX_VERSION)
1932 AC_SUBST(MKAFS_OSTYPE)
1933 AC_SUBST(TOP_OBJDIR)
1934 AC_SUBST(TOP_SRCDIR)
1935 AC_SUBST(TOP_INCDIR)
1936 AC_SUBST(TOP_LIBDIR)
1937 AC_SUBST(DEST)
1938 AC_SUBST(DARWIN_INFOFILE)
1939 AC_SUBST(IRIX_BUILD_IP35)
1940 AC_SUBST(HTML_XSL)
1941 AC_SUBST(XSLTPROC)
1942 AC_SUBST(DOCBOOK2PDF)
1943 AC_SUBST(DOCBOOK_STYLESHEETS)
1944
1945 OPENAFS_FUSE
1946 OPENAFS_SWIG
1947
1948 TOP_SRCDIR="${srcdir}/src"
1949 dnl
1950 dnl If we're using ./configure, need a more reasonable TOP_SRCDIR, since relative links don't work everywhere
1951 dnl
1952 case $TOP_SRCDIR in
1953         /*)
1954                 ;;
1955         *)
1956                 TOP_SRCDIR=`cd $TOP_SRCDIR; pwd`
1957                 ;;
1958 esac
1959
1960 TOP_OBJDIR="${SRCDIR_PARENT}"
1961 TOP_INCDIR="${SRCDIR_PARENT}/include"
1962 TOP_LIBDIR="${SRCDIR_PARENT}/lib"
1963 if test "${DEST}x" = "x"; then
1964         DEST="${SRCDIR_PARENT}/${AFS_SYSNAME}/dest"
1965 fi
1966
1967 if test "x$with_crosstools_dir" != "x"; then
1968         if test -f "$with_crosstools_dir/rxgen" -a -f "$with_crosstools_dir/compile_et" -a -f "$with_crosstools_dir/config"; then
1969                 COMPILE_ET_PATH=$with_crosstools_dir/compile_et
1970                 CONFIGTOOL_PATH=$with_crosstools_dir/config
1971                 RXGEN_PATH=$with_crosstools_dir/rxgen
1972         else
1973                 AC_MSG_ERROR(Tools not found in $with_crosstools_dir)
1974                 exit 1
1975         fi
1976 else
1977         COMPILE_ET_PATH="${SRCDIR_PARENT}/src/comerr/compile_et"
1978         CONFIGTOOL_PATH="${SRCDIR_PARENT}/src/config/config"
1979         RXGEN_PATH="${SRCDIR_PARENT}/src/rxgen/rxgen"
1980 fi
1981 AC_SUBST(COMPILE_ET_PATH)
1982 AC_SUBST(CONFIGTOOL_PATH)
1983 AC_SUBST(RXGEN_PATH)
1984
1985 HELPER_SPLINT="${TOP_SRCDIR}/helper-splint.sh"
1986 HELPER_SPLINTCFG="${TOP_SRCDIR}/splint.cfg"
1987 AC_SUBST(HELPER_SPLINT)
1988 AC_SUBST(HELPER_SPLINTCFG)
1989
1990 mkdir -p ${TOP_OBJDIR}/src/JAVA/libjafs
1991
1992 dnl Check to see if crypt lives in a different library
1993 AC_CHECK_LIB(crypt, crypt, LIB_crypt="-lcrypt")
1994 AC_SUBST(LIB_crypt)
1995
1996 dnl Check to see if the compiler support labels in structs
1997 AC_MSG_CHECKING(for label support in structs)
1998 AC_TRY_COMPILE([], [
1999 extern void osi_UFSOpen(void);
2000 struct labeltest {
2001    void (*open) (void);
2002 };
2003 struct labeltest struct_labeltest = {
2004    .open       = osi_UFSOpen,
2005 }
2006 ],
2007 [AC_MSG_RESULT(yes)
2008  AC_DEFINE(HAVE_STRUCT_LABEL_SUPPORT, 1, [Define to 1 if your compiler supports labels in structs.])
2009 ],
2010 [AC_MSG_RESULT(no)
2011 ])
2012
2013 AC_MSG_CHECKING([checking for dirfd])
2014 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
2015 #ifdef HAVE_DIRENT_H
2016 #include <dirent.h>
2017 #endif
2018 ]],
2019         [[DIR *d = 0; dirfd(d);]])],
2020         [ac_rk_have_dirfd=yes], [ac_rk_have_dirfd=no])
2021 if test "$ac_rk_have_dirfd" = "yes" ; then
2022         AC_DEFINE_UNQUOTED(HAVE_DIRFD, 1, [have a dirfd function/macro])
2023 fi
2024 AC_MSG_RESULT($ac_rk_have_dirfd)
2025
2026 OPENAFS_HAVE_STRUCT_FIELD(DIR, dd_fd, [#include <sys/types.h>
2027 #ifdef HAVE_DIRENT_H
2028 #include <dirent.h>
2029 #endif])
2030
2031 OPENAFS_HAVE_STRUCT_FIELD(struct rusage, ru_idrss,
2032 [#ifdef HAVE_SYS_RESOURCE_H
2033 #include <sys/resource.h>
2034 #endif])
2035
2036 dnl Check for UUID library
2037 AC_CHECK_HEADERS([uuid/uuid.h])
2038 AC_CHECK_LIB(uuid, uuid_generate, LIBS_uuid="-luuid")
2039 AC_CHECK_FUNCS([uuid_generate])
2040 ])
2041
2042