Linux 4.4: Use locks_lock_file_wait
[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([svc_addr_in],
1080                                      [#include <linux/sunrpc/svc.h>],
1081                                      [svc_addr_in(NULL);])
1082                  AC_CHECK_LINUX_FUNC([zero_user_segments],
1083                                      [#include <linux/highmem.h>],
1084                                      [zero_user_segments(NULL, 0, 0, 0, 0);])
1085                  AC_CHECK_LINUX_FUNC([noop_fsync],
1086                                      [#include <linux/fs.h>],
1087                                      [void *address = &noop_fsync; printk("%p\n", address)];)
1088                  AC_CHECK_LINUX_FUNC([kthread_run],
1089                                      [#include <linux/kernel.h>
1090                                       #include <linux/kthread.h>],
1091                                      [kthread_run(NULL, NULL, "test");])
1092
1093                  dnl Consequences - things which get set as a result of the
1094                  dnl                above tests
1095                  AS_IF([test "x$ac_cv_linux_func_d_alloc_anon" = "xno"],
1096                        [AC_DEFINE([AFS_NONFSTRANS], 1,
1097                                   [define to disable the nfs translator])])
1098
1099                  dnl Assorted more complex tests
1100                  LINUX_AIO_NONVECTOR
1101                  LINUX_EXPORTS_PROC_ROOT_FS
1102                  LINUX_KMEM_CACHE_INIT
1103                  LINUX_HAVE_KMEM_CACHE_T
1104                  LINUX_KMEM_CACHE_CREATE_TAKES_DTOR
1105                  LINUX_KMEM_CACHE_CREATE_CTOR_TAKES_VOID
1106                  LINUX_D_PATH_TAKES_STRUCT_PATH
1107                  LINUX_NEW_EXPORT_OPS
1108                  LINUX_INODE_SETATTR_RETURN_TYPE
1109                  LINUX_IOP_I_CREATE_TAKES_NAMEIDATA
1110                  LINUX_IOP_I_LOOKUP_TAKES_NAMEIDATA
1111                  LINUX_IOP_I_PERMISSION_TAKES_FLAGS
1112                  LINUX_IOP_I_PERMISSION_TAKES_NAMEIDATA
1113                  LINUX_IOP_I_PUT_LINK_TAKES_COOKIE
1114                  LINUX_DOP_D_DELETE_TAKES_CONST
1115                  LINUX_DOP_D_REVALIDATE_TAKES_NAMEIDATA
1116                  LINUX_FOP_F_FLUSH_TAKES_FL_OWNER_T
1117                  LINUX_FOP_F_FSYNC_TAKES_DENTRY
1118                  LINUX_FOP_F_FSYNC_TAKES_RANGE
1119                  LINUX_AOP_WRITEBACK_CONTROL
1120                  LINUX_FS_STRUCT_FOP_HAS_SPLICE
1121                  LINUX_KERNEL_POSIX_LOCK_FILE_WAIT_ARG
1122                  LINUX_POSIX_TEST_LOCK_RETURNS_CONFLICT
1123                  LINUX_POSIX_TEST_LOCK_CONFLICT_ARG
1124                  LINUX_KERNEL_SOCK_CREATE
1125                  LINUX_EXPORTS_KEY_TYPE_KEYRING
1126                  LINUX_NEED_RHCONFIG
1127                  LINUX_RECALC_SIGPENDING_ARG_TYPE
1128                  LINUX_EXPORTS_TASKLIST_LOCK
1129                  LINUX_GET_SB_HAS_STRUCT_VFSMOUNT
1130                  LINUX_STATFS_TAKES_DENTRY
1131                  LINUX_REFRIGERATOR
1132                  LINUX_HAVE_TRY_TO_FREEZE
1133                  LINUX_LINUX_KEYRING_SUPPORT
1134                  LINUX_KEY_ALLOC_NEEDS_STRUCT_TASK
1135                  LINUX_KEY_ALLOC_NEEDS_CRED
1136                  LINUX_INIT_WORK_HAS_DATA
1137                  LINUX_REGISTER_SYSCTL_TABLE_NOFLAG
1138                  LINUX_HAVE_DCACHE_LOCK
1139                  LINUX_D_COUNT_IS_INT
1140                  LINUX_IOP_MKDIR_TAKES_UMODE_T
1141                  LINUX_IOP_CREATE_TAKES_UMODE_T
1142                  LINUX_EXPORT_OP_ENCODE_FH_TAKES_INODES
1143                  LINUX_KMAP_ATOMIC_TAKES_NO_KM_TYPE
1144                  LINUX_DENTRY_OPEN_TAKES_PATH
1145                  LINUX_D_ALIAS_IS_HLIST
1146                  LINUX_HLIST_ITERATOR_NO_NODE
1147                  LINUX_IOP_I_CREATE_TAKES_BOOL
1148                  LINUX_DOP_D_REVALIDATE_TAKES_UNSIGNED
1149                  LINUX_IOP_LOOKUP_TAKES_UNSIGNED
1150                  LINUX_D_INVALIDATE_IS_VOID
1151
1152                  dnl If we are guaranteed that keyrings will work - that is
1153                  dnl  a) The kernel has keyrings enabled
1154                  dnl  b) The code is new enough to give us a key_type_keyring
1155                  dnl then we just disable syscall probing unless we've been
1156                  dnl told otherwise
1157
1158                  AS_IF([test "$enable_linux_syscall_probing" = "maybe"],
1159                    [AS_IF([test "$ac_cv_linux_keyring_support" = "yes" -a "$ac_cv_linux_exports_key_type_keyring" = "yes"],
1160                           [enable_linux_syscall_probing="no"],
1161                           [enable_linux_syscall_probing="yes"])
1162                  ])
1163
1164                  dnl Syscall probing needs a few tests of its own, and just
1165                  dnl won't work if the kernel doesn't export init_mm
1166                  AS_IF([test "$enable_linux_syscall_probing" = "yes"], [
1167                    LINUX_EXPORTS_INIT_MM
1168                    AS_IF([test "$ac_cv_linux_exports_init_mm" = "no"], [
1169                      AC_MSG_ERROR(
1170                        [Can't do syscall probing without exported init_mm])
1171                    ])
1172                    LINUX_EXPORTS_SYS_CHDIR
1173                    LINUX_EXPORTS_SYS_OPEN
1174                    AC_DEFINE(ENABLE_LINUX_SYSCALL_PROBING, 1,
1175                              [define to enable syscall table probes])
1176                  ])
1177
1178                  dnl Packaging and SMP build
1179                  if test "x$with_linux_kernel_packaging" != "xyes" ; then
1180                    LINUX_WHICH_MODULES
1181                  else
1182                    AC_SUBST(MPS,'SP')
1183                  fi
1184
1185                  dnl Syscall probing
1186                  if test "x$ac_cv_linux_config_modversions" = "xno" -o $AFS_SYSKVERS -ge 26; then
1187                    AS_IF([test "$enable_linux_syscall_probing" = "yes"], [
1188                      AC_MSG_WARN([Cannot determine sys_call_table status. assuming it isn't exported])
1189                    ])
1190                    ac_cv_linux_exports_sys_call_table=no
1191                    if test -f "$LINUX_KERNEL_PATH/include/asm/ia32_unistd.h"; then
1192                      ac_cv_linux_exports_ia32_sys_call_table=yes
1193                    fi
1194                  else
1195                    LINUX_EXPORTS_KALLSYMS_ADDRESS
1196                    LINUX_EXPORTS_KALLSYMS_SYMBOL
1197                    LINUX_EXPORTS_SYS_CALL_TABLE
1198                    LINUX_EXPORTS_IA32_SYS_CALL_TABLE
1199                    if test "x$ac_cv_linux_exports_sys_call_table" = "xno"; then
1200                          linux_syscall_method=none
1201                          if test "x$ac_cv_linux_exports_init_mm" = "xyes"; then
1202                             linux_syscall_method=scan
1203                             if test "x$ac_cv_linux_exports_kallsyms_address" = "xyes"; then
1204                                linux_syscall_method=scan_with_kallsyms_address
1205                             fi
1206                          fi
1207                          if test "x$ac_cv_linux_exports_kallsyms_symbol" = "xyes"; then
1208                             linux_syscall_method=kallsyms_symbol
1209                          fi
1210                          if test "x$linux_syscall_method" = "xnone"; then
1211                             AC_MSG_WARN([no available sys_call_table access method -- guessing scan])
1212                             linux_syscall_method=scan
1213                          fi
1214                    fi
1215                  fi
1216                  if test -f "$LINUX_KERNEL_PATH/include/linux/in_systm.h"; then
1217                   AC_DEFINE(HAVE_IN_SYSTM_H, 1, [define if you have in_systm.h header file])
1218                  fi
1219                  if test -f "$LINUX_KERNEL_PATH/include/linux/mm_inline.h"; then
1220                   AC_DEFINE(HAVE_MM_INLINE_H, 1, [define if you have mm_inline.h header file])
1221                  fi
1222                  if test "x$ac_cv_linux_kernel_page_follow_link" = "xyes" -o "x$ac_cv_linux_func_i_put_link_takes_cookie" = "xyes"; then
1223                   AC_DEFINE(USABLE_KERNEL_PAGE_SYMLINK_CACHE, 1, [define if your kernel has a usable symlink cache API])
1224                  else
1225                   AC_MSG_WARN([your kernel does not have a usable symlink cache API])
1226                  fi
1227                 :
1228                 fi
1229                 if test "x$enable_linux_d_splice_alias_extra_iput" = xyes; then
1230                     AC_DEFINE(D_SPLICE_ALIAS_LEAK_ON_ERROR, 1, [for internal use])
1231                 fi
1232 dnl Linux-only, but just enable always.
1233                 AC_DEFINE(AFS_CACHE_BYPASS, 1, [define to activate cache bypassing Unix client])
1234 esac
1235
1236 AC_CACHE_CHECK([if compiler has __sync_add_and_fetch],
1237     [ac_cv_sync_fetch_and_add],
1238     [AC_TRY_LINK(, [int var; return __sync_add_and_fetch(&var, 1);],
1239                     [ac_cv_sync_fetch_and_add=yes],
1240                     [ac_cv_sync_fetch_and_add=no])
1241 ])
1242 AS_IF([test "$ac_cv_sync_fetch_and_add" = "yes"],
1243       [AC_DEFINE(HAVE_SYNC_FETCH_AND_ADD, 1,
1244                 [define if your C compiler has __sync_add_and_fetch])])
1245
1246 AC_CACHE_CHECK([if struct sockaddr has sa_len field],
1247     [ac_cv_sockaddr_len],
1248     [AC_TRY_COMPILE( [#include <sys/types.h>
1249 #include <sys/socket.h>],
1250                      [struct sockaddr *a; a->sa_len=0;],
1251                      [ac_cv_sockaddr_len=yes],
1252                      [ac_cv_sockaddr_len=no])
1253 ])
1254 AS_IF([test "$ac_cv_sockaddr_len" = "yes"],
1255       [AC_DEFINE(STRUCT_SOCKADDR_HAS_SA_LEN, 1,
1256                  [define if you struct sockaddr sa_len])])
1257
1258 if test "x${MKAFS_OSTYPE}" = "xIRIX"; then
1259         echo Skipping library tests because they confuse Irix.
1260 else
1261   AC_SEARCH_LIBS([socket], [socket inet])
1262   AC_SEARCH_LIBS([connect], [nsl])
1263   AC_SEARCH_LIBS([gethostbyname], [dns nsl resolv])
1264
1265   dnl darwin wants it, aix hates it
1266   AC_MSG_CHECKING(for the useability of arpa/nameser_compat.h)
1267   AC_TRY_COMPILE([
1268   #include <stdlib.h>
1269   #include <stdio.h>
1270   #include <sys/types.h>
1271   #include <sys/socket.h>
1272   #include <netinet/in.h>
1273   #include <arpa/inet.h>
1274   #include <arpa/nameser.h>
1275   #include <arpa/nameser_compat.h>
1276   #include <resolv.h>
1277   ], [static int i; i = 0;],
1278   [AC_MSG_RESULT(yes)
1279    AC_DEFINE(HAVE_ARPA_NAMESER_COMPAT_H, 1, [define if arpa/nameser_compat.h exists])],
1280   [AC_MSG_RESULT(no)
1281    ])
1282
1283   openafs_save_libs="$LIBS"
1284   AC_MSG_CHECKING([for res_search])
1285   AC_FUNC_RES_SEARCH
1286
1287   if test "$ac_cv_func_res_search" = no; then
1288       for lib in dns nsl resolv; do
1289         if test "$ac_cv_func_res_search" != yes; then
1290           LIBS="-l$lib $LIBS"
1291           AC_FUNC_RES_SEARCH
1292           LIBS="$openafs_save_libs"
1293         fi
1294       done    
1295       if test "$ac_cv_func_res_search" = yes; then
1296         LIB_AFSDB="-l$lib"
1297         AC_DEFINE(HAVE_RES_SEARCH, 1, [])
1298         AC_MSG_RESULT([yes, in lib$lib])
1299       else
1300         AC_MSG_RESULT(no)
1301       fi
1302   else
1303     AC_DEFINE(HAVE_RES_SEARCH, 1, [])
1304     AC_MSG_RESULT(yes)
1305   fi
1306   
1307 fi
1308 XLIBS="$LIB_AFSDB $XLIBS"
1309
1310 AC_CHECK_RESOLV_RETRANS
1311
1312 AC_CACHE_CHECK([for setsockopt(, SOL_IP, IP_RECVERR)],
1313     [ac_cv_setsockopt_iprecverr],
1314     [AC_TRY_COMPILE( [
1315 #include <sys/types.h>
1316 #include <sys/socket.h>
1317 #include <netinet/in.h>],
1318 [int on=1;
1319 setsockopt(0, SOL_IP, IP_RECVERR, &on, sizeof(on));],
1320         [ac_cv_setsockopt_iprecverr=yes],
1321         [ac_cv_setsockopt_iprecverr=no])])
1322
1323 AS_IF([test "$ac_cv_setsockopt_iprecverr" = "yes"],
1324       [AC_DEFINE([HAVE_SETSOCKOPT_IP_RECVERR], [1],
1325                  [define if we can receive socket errors via IP_RECVERR])])
1326
1327 PTHREAD_LIBS=error
1328 if test "x$MKAFS_OSTYPE" = OBSD; then
1329         PTHREAD_LIBS="-pthread"
1330 fi
1331 if test "x$MKAFS_OSTYPE" = xDFBSD; then
1332         PTHREAD_LIBS="-pthread"
1333 fi
1334 if test "x$PTHREAD_LIBS" = xerror; then
1335         AC_CHECK_LIB(pthread, pthread_attr_init,
1336                 PTHREAD_LIBS="-lpthread")
1337 fi
1338 if test "x$PTHREAD_LIBS" = xerror; then
1339         AC_CHECK_LIB(pthreads, pthread_attr_init,
1340                 PTHREAD_LIBS="-lpthreads")
1341 fi
1342 if test "x$PTHREAD_LIBS" = xerror; then
1343         AC_CHECK_LIB(c_r, pthread_attr_init,
1344                 PTHREAD_LIBS="-lc_r")
1345 fi
1346 if test "x$PTHREAD_LIBS" = xerror; then
1347         AC_CHECK_FUNC(pthread_attr_init, PTHREAD_LIBS="")
1348 fi
1349 if test "x$PTHREAD_LIBS" = xerror; then
1350         # pthread_attr_init is a macro under HPUX 11.0 and 11.11
1351         AC_CHECK_LIB(pthread, pthread_attr_destroy,
1352                 PTHREAD_LIBS="-lpthread")
1353 fi
1354 if test "x$PTHREAD_LIBS" = xerror; then
1355         AC_MSG_WARN(*** Unable to locate working posix thread library ***)
1356 fi
1357 AC_SUBST(PTHREAD_LIBS)
1358
1359 HOST_CPU="$host_cpu"
1360
1361 if test "x$with_bsd_kernel_headers" != "x"; then
1362         BSD_KERNEL_PATH="$with_bsd_kernel_headers"
1363 else
1364         BSD_KERNEL_PATH="/usr/src/sys"
1365 fi
1366
1367 if test "x$with_bsd_kernel_build" != "x"; then
1368         BSD_KERNEL_BUILD="$with_bsd_kernel_build"
1369 else
1370         case $AFS_SYSNAME in
1371                 *_fbsd_*)
1372                         BSD_KERNEL_BUILD="${BSD_KERNEL_PATH}/${HOST_CPU}/compile/GENERIC"
1373                         ;;
1374                 *_nbsd*)
1375                         BSD_KERNEL_BUILD="${BSD_KERNEL_PATH}/arch/${HOST_CPU}/compile/GENERIC"
1376         esac
1377 fi
1378
1379 # Fast restart
1380 if test "$enable_supergroups" = "yes"; then
1381         AC_DEFINE(SUPERGROUPS, 1, [define if you want to have support for nested pts groups])
1382 fi
1383
1384 if test "$enable_bitmap_later" = "yes"; then
1385         AC_DEFINE(BITMAP_LATER, 1, [define if you want to salvager to check bitmasks later])
1386 fi
1387
1388 if test "$enable_unix_sockets" = "yes"; then
1389         AC_DEFINE(USE_UNIX_SOCKETS, 1, [define if you want to use UNIX sockets for fssync.])
1390         USE_UNIX_SOCKETS="yes"
1391 else
1392         USE_UNIX_SOCKETS="no"
1393 fi
1394 AC_SUBST(USE_UNIX_SOCKETS)
1395
1396 if test "$enable_namei_fileserver" = "yes"; then
1397         AC_DEFINE(AFS_NAMEI_ENV, 1, [define if you want to want namei fileserver])
1398         VFSCK=""
1399 else
1400         if test "$enable_namei_fileserver" = "default"; then
1401                 case $host in
1402                         *-solaris2.10*)
1403                                 AC_MSG_WARN(Some Solaris 10 versions are not safe with the inode fileserver. Forcing namei. Override with --disable-namei-fileserver)
1404                                 AC_DEFINE(AFS_NAMEI_ENV, 1, [define if you want to want namei fileserver])
1405                                 VFSCK=""
1406                                 ;;
1407                         *-solaris2.11*)
1408                                 AC_MSG_WARN(Solaris 11 versions are not safe with the inode fileserver. Forcing namei. Override with --disable-namei-fileserver)
1409                                 AC_DEFINE(AFS_NAMEI_ENV, 1, [define if you want to want namei fileserver])
1410                                 VFSCK=""
1411                                 ;;
1412                         *)
1413                                 VFSCK="vfsck"
1414                                 ;;
1415                 esac
1416         else
1417                 VFSCK="vfsck"
1418         fi
1419 fi
1420
1421 dnl check for tivoli
1422 AC_MSG_CHECKING(for tivoli tsm butc support)
1423 XBSA_CFLAGS=""
1424 if test "$enable_tivoli_tsm" = "yes"; then
1425         XBSADIR1=/usr/tivoli/tsm/client/api/bin/xopen
1426         XBSADIR2=/opt/tivoli/tsm/client/api/bin/xopen
1427         XBSADIR3=/usr/tivoli/tsm/client/api/bin/sample
1428         XBSADIR4=/opt/tivoli/tsm/client/api/bin/sample
1429
1430         if test -r "$XBSADIR3/dsmapifp.h"; then
1431                 XBSA_CFLAGS="-Dxbsa -DNEW_XBSA -I$XBSADIR3"
1432                 XBSA_XLIBS="-ldl"
1433                 AC_MSG_RESULT([yes, $XBSA_CFLAGS])
1434         elif test -r "$XBSADIR4/dsmapifp.h"; then
1435                 XBSA_CFLAGS="-Dxbsa -DNEW_XBSA -I$XBSADIR4"
1436                 XBSA_XLIBS="-ldl"
1437                 AC_MSG_RESULT([yes, $XBSA_CFLAGS])
1438         elif test -r "$XBSADIR1/xbsa.h"; then
1439                 XBSA_CFLAGS="-Dxbsa -I$XBSADIR1"
1440                 XBSA_XLIBS=""
1441                 AC_MSG_RESULT([yes, $XBSA_CFLAGS])
1442         elif test -r "$XBSADIR2/xbsa.h"; then
1443                 XBSA_CFLAGS="-Dxbsa -I$XBSADIR2"
1444                 XBSA_XLIBS=""
1445                 AC_MSG_RESULT([yes, $XBSA_CFLAGS])
1446         else
1447                 AC_MSG_RESULT([no, missing xbsa.h and dsmapifp.h header files])
1448         fi
1449 else
1450         AC_MSG_RESULT([no])
1451 fi
1452 AC_SUBST(XBSA_CFLAGS)
1453 AC_SUBST(XBSA_XLIBS) 
1454 XLIBS="$XBSA_XLIBS $XLIBS"
1455
1456 dnl checks for header files.
1457 AC_HEADER_STDC
1458 AC_HEADER_SYS_WAIT
1459 AC_HEADER_DIRENT
1460 AC_CHECK_HEADERS([ \
1461                    arpa/inet.h \
1462                    arpa/nameser.h \
1463                    curses.h\
1464                    direct.h \
1465                    errno.h \
1466                    fcntl.h \
1467                    grp.h \
1468                    math.h \
1469                    mntent.h \
1470                    ncurses.h \
1471                    ncurses/ncurses.h \
1472                    netdb.h \
1473                    netinet/in.h \
1474                    pthread_np.h \
1475                    pwd.h \
1476                    regex.h \
1477                    security/pam_appl.h \
1478                    signal.h \
1479                    stdint.h \
1480                    stdio_ext.h \
1481                    stdlib.h \
1482                    string.h \
1483                    strings.h \
1484                    sys/bitypes.h \
1485                    sys/bswap.h \
1486                    sys/dk.h \
1487                    sys/fcntl.h \
1488                    sys/file.h \
1489                    sys/fs_types.h \
1490                    sys/fstyp.h \
1491                    sys/ioctl.h \
1492                    sys/ipc.h \
1493                    sys/lockf.h \
1494                    sys/map.h \
1495                    sys/mount.h \
1496                    sys/mntent.h \
1497                    sys/mnttab.h \
1498                    sys/pag.h \
1499                    sys/param.h \
1500                    sys/resource.h \
1501                    sys/select.h \
1502                    sys/statfs.h \
1503                    sys/statvfs.h \
1504                    sys/socket.h \
1505                    sys/sysctl.h \
1506                    sys/time.h \
1507                    sys/types.h \
1508                    sys/uio.h \
1509                    sys/un.h \
1510                    sys/vfs.h \
1511                    syslog.h \
1512                    termios.h \
1513                    time.h \
1514                    ucontext.h \
1515                    unistd.h \
1516                    windows.h \
1517                 ])
1518
1519 AC_CHECK_HEADERS([resolv.h], [], [], [AC_INCLUDES_DEFAULT
1520 #ifdef HAVE_NETINET_IN_H
1521 # include <netinet/in.h>
1522 #endif])
1523
1524 AC_CHECK_HEADERS([net/if.h],[],[],[AC_INCLUDES_DEFAULT
1525 #ifdef HAVE_SYS_SOCKET_H
1526 # include <sys/socket.h>
1527 #endif])
1528
1529 AC_CHECK_HEADERS([netinet/if_ether.h],[],[],[AC_INCLUDES_DEFAULT
1530 #ifdef HAVE_SYS_SOCKET_H
1531 # include <sys/socket.h>
1532 #endif
1533 #ifdef HAVE_NETINET_IN_H
1534 # include <netinet/in.h>
1535 #endif
1536 #ifdef HAVE_NET_IF_H
1537 # include <net/if.h>
1538 #endif])
1539
1540 AC_CHECK_HEADERS([security/pam_modules.h],[],[],[AC_INCLUDES_DEFAULT
1541 #ifdef HAVE_SECURITY_PAM_APPL_H
1542 # include <security/pam_appl.h>
1543 #endif])
1544
1545 AC_CHECK_HEADERS(linux/errqueue.h,,,[#include <linux/types.h>])
1546
1547 AC_CHECK_TYPES([fsblkcnt_t],,,[
1548 #include <sys/types.h>
1549 #ifdef HAVE_SYS_BITYPES_H
1550 #include <sys/bitypes.h>
1551 #endif
1552 #ifdef HAVE_SYS_STATFS_H
1553 #include <sys/statfs.h>
1554 #endif
1555 #ifdef HAVE_SYS_STATVFS_H
1556 #include <sys/statvfs.h>
1557 #endif
1558 ])
1559
1560 dnl see what struct stat has for timestamps
1561 AC_CHECK_MEMBERS([struct stat.st_ctimespec, struct stat.st_ctimensec])
1562
1563 OPENAFS_TEST_PACKAGE(libintl,[#include <libintl.h>],[-lintl],,,INTL)
1564
1565 if test "$enable_debug_locks" = yes; then
1566         AC_DEFINE(OPR_DEBUG_LOCKS, 1, [turn on lock debugging in opr])
1567 fi
1568
1569 if test "$ac_cv_header_security_pam_modules_h" = yes -a "$enable_pam" = yes; then
1570         HAVE_PAM="YES"
1571 else
1572         HAVE_PAM="no"
1573 fi
1574 AC_SUBST(HAVE_PAM)
1575
1576 if test "$enable_login" = yes; then
1577         BUILD_LOGIN="yes"
1578 else
1579         BUILD_LOGIN="no"
1580 fi
1581 AC_SUBST(BUILD_LOGIN)
1582
1583 if test "$enable_kauth" = yes; then
1584         INSTALL_KAUTH="yes"
1585 else
1586         INSTALL_KAUTH="no"
1587 fi
1588 AC_SUBST(INSTALL_KAUTH)
1589
1590 AC_CHECK_FUNCS([ \
1591         arc4random \
1592         fcntl \
1593         fseeko64 \
1594         ftello64 \
1595         getcwd \
1596         getegid \
1597         geteuid \
1598         getgid \
1599         getuid \
1600         getrlimit \
1601         issetugid \
1602         mkstemp \
1603         poll \
1604         pread \
1605         preadv \
1606         preadv64 \
1607         pwrite \
1608         pwritev \
1609         pwritev64 \
1610         regcomp \
1611         regerror \
1612         regexec \
1613         setitimer \
1614         setvbuf \
1615         sigaction \
1616         strcasestr \
1617         strerror \
1618         sysconf \
1619         sysctl \
1620         tdestroy \
1621         timegm \
1622 ])
1623
1624 OPENAFS_ROKEN()
1625 OPENAFS_HCRYPTO()
1626 OPENAFS_CURSES()
1627 OPENAFS_C_ATTRIBUTE()
1628 OPENAFS_C_PRAGMA()
1629
1630 dnl Functions that Heimdal's libroken provides, but that we
1631 dnl haven't found a need for yet, and so haven't imported
1632 AC_CHECK_FUNCS([ \
1633         chown \
1634         fchown \
1635         gethostname \
1636         lstat \
1637         inet_aton \
1638         putenv \
1639         readv \
1640         setenv \
1641         strdup \
1642         strftime \
1643         strndup \
1644         strsep \
1645         unsetenv \
1646 ])
1647
1648 dnl Functions that are in objects that we always build from libroken
1649 AC_CHECK_FUNCS([ \
1650         asprintf \
1651         asnprintf \
1652         vasprintf \
1653         vasnprintf \
1654         vsnprintf \
1655         snprintf \
1656 ])
1657
1658 dnl Functions that we're going to try and get from libroken
1659 AC_REPLACE_FUNCS([ \
1660         daemon \
1661         ecalloc \
1662         emalloc \
1663         erealloc \
1664         err \
1665         errx \
1666         flock \
1667         freeaddrinfo \
1668         gai_strerror \
1669         getaddrinfo \
1670         getdtablesize \
1671         getnameinfo \
1672         getopt \
1673         getprogname \
1674         gettimeofday \
1675         inet_ntop \
1676         inet_pton \
1677         localtime_r \
1678         mkstemp \
1679         setenv \
1680         setprogname \
1681         strcasecmp \
1682         strlcat \
1683         strnlen \
1684         strlcpy \
1685         strsep \
1686         tdelete \
1687         tfind \
1688         tsearch \
1689         twalk \
1690         unsetenv \
1691         verr \
1692         verrx \
1693         vsyslog \
1694         vwarn \
1695         vwarnx \
1696         warn \
1697         warnx \
1698 ])
1699
1700 dnl Headers that we're going to try and get from libroken
1701 AC_CHECK_HEADERS([ \
1702         err.h \
1703         search.h \
1704 ])
1705
1706 AC_CHECK_DECLS([h_errno], [], [], [
1707 #include <sys/types.h>
1708 #ifdef HAVE_NETDB_H
1709 #include <netdb.h>
1710 #endif
1711 ])
1712
1713 AC_HEADER_TIME
1714
1715 ROKEN_HEADERS=
1716 AS_IF([test "$ac_cv_header_err_h" != "yes" ],
1717       [ROKEN_HEADERS="$ROKEN_HEADERS \$(TOP_INCDIR)/err.h"],
1718       [])
1719 AC_SUBST(ROKEN_HEADERS)
1720
1721 dnl Stuff that's harder ...
1722 AC_MSG_CHECKING([for bswap16])
1723 AC_LINK_IFELSE([AC_LANG_PROGRAM([
1724 #ifdef HAVE_SYS_TYPES_H
1725 #include <sys/types.h>
1726 #endif
1727 #ifdef HAVE_SYS_BSWAP_H
1728 #include <sys/bswap.h>
1729 #endif
1730 ],
1731 [short a, b; b = bswap16(a); ])],
1732 [AC_MSG_RESULT(yes)
1733  AC_DEFINE(HAVE_BSWAP16, 1, [Define to 1 if you have the bswap16 function])
1734 ],
1735 [AC_MSG_RESULT(no)])
1736
1737 AC_MSG_CHECKING([for bswap32])
1738 AC_LINK_IFELSE([AC_LANG_PROGRAM([#ifdef HAVE_SYS_TYPES_H
1739 #include <sys/types.h>
1740 #endif
1741 #ifdef HAVE_SYS_BSWAP_H
1742 #include <sys/bswap.h>
1743 #endif
1744 ],
1745 [int a, b; b = bswap32(a); ])],
1746 [AC_MSG_RESULT(yes)
1747  AC_DEFINE(HAVE_BSWAP32, 1, [Define to 1 if you have the bswap32 function])
1748 ],
1749 [AC_MSG_RESULT(no)])
1750
1751 case $AFS_SYSNAME in
1752 *hp_ux* | *hpux*)
1753    AC_MSG_WARN([Some versions of HP-UX have a buggy positional I/O implementation. Forcing no positional I/O.])
1754    ;;
1755 *)
1756    AC_MSG_CHECKING([for positional I/O])
1757    if test "$ac_cv_func_pread" = "yes" && \
1758            test "$ac_cv_func_pwrite" = "yes"; then
1759       AC_DEFINE(HAVE_PIO, 1, [define if you have pread() and pwrite()])
1760       AC_MSG_RESULT(yes)
1761    else
1762      AC_MSG_RESULT(no)
1763    fi
1764    AC_MSG_CHECKING([for vectored positional I/O])
1765    AS_IF([test "$ac_cv_func_preadv" = "yes" -a \
1766                "$ac_cv_func_pwritev" = "yes" -a \
1767                "$ac_cv_func_preadv64" = "yes" -a \
1768                "$ac_cv_func_pwritev64" = "yes"],
1769          [AC_DEFINE(HAVE_PIOV, 1, [define if you have preadv() and pwritev()])
1770           AC_MSG_RESULT(yes)],
1771          [AC_MSG_RESULT(no)])
1772    ;;
1773 esac
1774
1775 AC_MSG_CHECKING([for POSIX regex library])
1776 if test "$ac_cv_header_regex_h" = "yes" && \
1777         test "$ac_cv_func_regcomp" = "yes" && \
1778         test "$ac_cv_func_regexec" = "yes" && \
1779         test "$ac_cv_func_regerror" = "yes"; then
1780     AC_DEFINE(HAVE_POSIX_REGEX, 1, [define if you have POSIX regex library])
1781     AC_MSG_RESULT(yes)
1782 else
1783     AC_MSG_RESULT(no)
1784 fi
1785
1786 dnl Look for "non-portable" pthreads functions.
1787 save_LIBS="$LIBS"
1788 LIBS="$LIBS $PTHREAD_LIBS"
1789 AC_CHECK_FUNCS([ \
1790         pthread_set_name_np \
1791         pthread_setname_np \
1792 ])
1793
1794 dnl Sadly, there are three different versions of pthread_setname_np.
1795 dnl Try to cater for all of them.
1796 if test "$ac_cv_func_pthread_setname_np" = "yes" ; then
1797     AC_MSG_CHECKING([for signature of pthread_setname_np])
1798     AC_TRY_COMPILE([
1799 #include <pthread.h>
1800 #ifdef HAVE_PTHREAD_NP_H
1801 #include <pthread_np.h>
1802 #endif
1803 ], [pthread_setname_np(pthread_self(), "test", (void *)0)], [
1804         AC_MSG_RESULT([three arguments])
1805         pthread_setname_np_args=3], [
1806         AC_TRY_COMPILE([
1807 #include <pthread.h>
1808 #ifdef HAVE_PTHREAD_NP_H
1809 #include <pthread_np.h>
1810 #endif
1811 ], [pthread_setname_np(pthread_self(), "test")], [
1812             AC_MSG_RESULT([two arguments])
1813             pthread_setname_np_args=2], [
1814             AC_TRY_COMPILE([
1815 #include <pthread.h>
1816 #ifdef HAVE_PTHREAD_NP_H
1817 #include <pthread_np.h>
1818 #endif
1819 ], [pthread_setname_np("test")], [
1820                 AC_MSG_RESULT([one argument])
1821                 pthread_setname_np_args=1], [pthread_setname_np_args=0])
1822 ])
1823 ])
1824 AC_DEFINE_UNQUOTED([PTHREAD_SETNAME_NP_ARGS], $pthread_setname_np_args, [Number of arguments required by pthread_setname_np() function])
1825 fi
1826 LIBS="$save_LIBS"
1827
1828 openafs_cv_saved_CFLAGS="$CFLAGS"
1829 CFLAGS="$CFLAGS $XCFLAGS_NOCHECKING"
1830
1831 AC_TYPE_SIGNAL
1832 OPENAFS_RETSIGTYPE
1833 AC_CHECK_SIZEOF(void *)
1834 AC_CHECK_SIZEOF(unsigned long long)
1835 AC_CHECK_SIZEOF(unsigned long)
1836 AC_CHECK_SIZEOF(unsigned int)
1837 AC_TYPE_INTPTR_T
1838 AC_TYPE_UINTPTR_T
1839 AC_TYPE_SSIZE_T
1840 AC_CHECK_TYPE([sig_atomic_t],[],
1841     [AC_DEFINE([sig_atomic_t], [int],
1842         [Define to int if <signal.h> does not define.])],
1843 [#include <sys/types.h>
1844 #include <signal.h>])
1845 AC_CHECK_TYPE([socklen_t],[],
1846     [AC_DEFINE([socklen_t], [int],
1847         [Define to int if <sys/socket.h> does not define.])],
1848 [#include <sys/types.h>
1849 #include <sys/socket.h>])
1850 AC_CHECK_TYPES(off64_t)
1851 AC_CHECK_TYPES([ssize_t], [], [], [#include <unistd.h>])
1852 AC_CHECK_TYPES([struct winsize], [], [], [
1853 #ifdef HAVE_TERMIOS_H
1854 # include <termios.h>
1855 #else
1856 # include <sys/termios.h>
1857 #endif
1858 #include <sys/ioctl.h>])
1859 AC_CHECK_TYPES([sa_family_t, socklen_t, struct sockaddr,
1860                 struct sockaddr_storage],
1861                [], [], [
1862 #include <sys/types.h>
1863 #include <sys/socket.h>
1864 ])
1865 AC_CHECK_TYPES([sa_family_t], [], [], [
1866 #include <sys/types.h>
1867 #include <sys/socket.h>
1868 ])
1869 AC_CHECK_TYPES([struct addrinfo], [], [], [
1870 #include <sys/types.h>
1871 #ifdef HAVE_NETDB_H
1872 #include <netdb.h>
1873 #endif
1874 ])
1875 AC_CHECK_TYPES([long long], [], [], [])
1876
1877 AC_SIZEOF_TYPE(long)
1878
1879 CFLAGS="$openafs_cv_saved_CFLAGS"
1880
1881 RRA_HEADER_PAM_CONST
1882
1883
1884 dnl Directory PATH handling
1885 if test "x$enable_transarc_paths" = "xyes"  ; then 
1886     afsconfdir=${afsconfdir=/usr/afs/etc}
1887     viceetcdir=${viceetcdir=/usr/vice/etc}
1888     afskerneldir=${afskerneldir=${viceetcdir}}
1889     afssrvbindir=${afssrvbindir=/usr/afs/bin}
1890     afssrvsbindir=${afssrvsbindir=/usr/afs/bin}
1891     afssrvlibexecdir=${afssrvlibexecdir=/usr/afs/bin}
1892     afsdbdir=${afsdbdir=/usr/afs/db}
1893     afslogsdir=${afslogsdir=/usr/afs/logs}
1894     afslocaldir=${afslocaldir=/usr/afs/local}
1895     afsbackupdir=${afsbackupdir=/usr/afs/backup}
1896     afsbosconfigdir=${afsbosconfigdir=/usr/afs/local}
1897     afsdatadir=${afsdatadir=/usr/vice/etc}
1898 else 
1899     afsconfdir=${afsconfdir='${sysconfdir}/openafs/server'}
1900     viceetcdir=${viceetcdir='${sysconfdir}/openafs'}
1901     afskerneldir=${afskerneldir='${libdir}/openafs'}
1902     afssrvbindir=${afssrvbindir='${bindir}'}
1903     afssrvsbindir=${afssrvsbindir='${sbindir}'}
1904     afssrvlibexecdir=${afssrvlibexecdir='${libexecdir}/openafs'}
1905     afsdbdir=${afsdbdir='${localstatedir}/openafs/db'}
1906     afslogsdir=${afslogsdir='${localstatedir}/openafs/logs'}
1907     afslocaldir=${afslocaldir='${localstatedir}/openafs'}
1908     afsbackupdir=${afsbackupdir='${localstatedir}/openafs/backup'}
1909     afsbosconfigdir=${afsbosconfigdir='${sysconfdir}/openafs'}
1910     afsdatadir=${afsdatadir='${datadir}/openafs'}
1911 fi
1912 AC_SUBST(afsconfdir)
1913 AC_SUBST(viceetcdir)
1914 AC_SUBST(afskerneldir)
1915 AC_SUBST(afssrvbindir)
1916 AC_SUBST(afssrvsbindir)
1917 AC_SUBST(afssrvlibexecdir)
1918 AC_SUBST(afsdbdir)
1919 AC_SUBST(afslogsdir)
1920 AC_SUBST(afslocaldir)
1921 AC_SUBST(afsbackupdir)
1922 AC_SUBST(afsbosconfigdir)
1923 AC_SUBST(afsdatadir)
1924
1925 if test "x$enable_kernel_module" = "xyes"; then
1926 ENABLE_KERNEL_MODULE=libafs
1927 fi
1928
1929 if test "x$enable_pthreaded_ubik" = "xyes"; then
1930 ENABLE_PTHREADED_UBIK=yes
1931 fi
1932
1933 AC_SUBST(VFSCK)
1934 AC_SUBST(AFS_SYSNAME)
1935 AC_SUBST(AFS_PARAM_COMMON)
1936 AC_SUBST(ENABLE_KERNEL_MODULE)
1937 AC_SUBST(ENABLE_PTHREADED_UBIK)
1938 AC_SUBST(LIB_AFSDB)
1939 AC_SUBST(LINUX_KERNEL_PATH)
1940 AC_SUBST(LINUX_KERNEL_BUILD)
1941 AC_SUBST(HOST_CPU)
1942 AC_SUBST(BSD_KERNEL_PATH)
1943 AC_SUBST(BSD_KERNEL_BUILD)
1944 AC_SUBST(LINUX_VERSION)
1945 AC_SUBST(MKAFS_OSTYPE)
1946 AC_SUBST(TOP_OBJDIR)
1947 AC_SUBST(TOP_SRCDIR)
1948 AC_SUBST(TOP_INCDIR)
1949 AC_SUBST(TOP_LIBDIR)
1950 AC_SUBST(DEST)
1951 AC_SUBST(DARWIN_INFOFILE)
1952 AC_SUBST(IRIX_BUILD_IP35)
1953 AC_SUBST(HTML_XSL)
1954 AC_SUBST(XSLTPROC)
1955 AC_SUBST(DOCBOOK2PDF)
1956 AC_SUBST(DOCBOOK_STYLESHEETS)
1957
1958 OPENAFS_FUSE
1959 OPENAFS_SWIG
1960
1961 TOP_SRCDIR="${srcdir}/src"
1962 dnl
1963 dnl If we're using ./configure, need a more reasonable TOP_SRCDIR, since relative links don't work everywhere
1964 dnl
1965 case $TOP_SRCDIR in
1966         /*)
1967                 ;;
1968         *)
1969                 TOP_SRCDIR=`cd $TOP_SRCDIR; pwd`
1970                 ;;
1971 esac
1972
1973 TOP_OBJDIR="${SRCDIR_PARENT}"
1974 TOP_INCDIR="${SRCDIR_PARENT}/include"
1975 TOP_LIBDIR="${SRCDIR_PARENT}/lib"
1976 if test "${DEST}x" = "x"; then
1977         DEST="${SRCDIR_PARENT}/${AFS_SYSNAME}/dest"
1978 fi
1979
1980 if test "x$with_crosstools_dir" != "x"; then
1981         if test -f "$with_crosstools_dir/rxgen" -a -f "$with_crosstools_dir/compile_et" -a -f "$with_crosstools_dir/config"; then
1982                 COMPILE_ET_PATH=$with_crosstools_dir/compile_et
1983                 CONFIGTOOL_PATH=$with_crosstools_dir/config
1984                 RXGEN_PATH=$with_crosstools_dir/rxgen
1985         else
1986                 AC_MSG_ERROR(Tools not found in $with_crosstools_dir)
1987                 exit 1
1988         fi
1989 else
1990         COMPILE_ET_PATH="${SRCDIR_PARENT}/src/comerr/compile_et"
1991         CONFIGTOOL_PATH="${SRCDIR_PARENT}/src/config/config"
1992         RXGEN_PATH="${SRCDIR_PARENT}/src/rxgen/rxgen"
1993 fi
1994 AC_SUBST(COMPILE_ET_PATH)
1995 AC_SUBST(CONFIGTOOL_PATH)
1996 AC_SUBST(RXGEN_PATH)
1997
1998 HELPER_SPLINT="${TOP_SRCDIR}/helper-splint.sh"
1999 HELPER_SPLINTCFG="${TOP_SRCDIR}/splint.cfg"
2000 AC_SUBST(HELPER_SPLINT)
2001 AC_SUBST(HELPER_SPLINTCFG)
2002
2003 mkdir -p ${TOP_OBJDIR}/src/JAVA/libjafs
2004
2005 dnl Check to see if crypt lives in a different library
2006 AC_CHECK_LIB(crypt, crypt, LIB_crypt="-lcrypt")
2007 AC_SUBST(LIB_crypt)
2008
2009 dnl Check to see if the compiler support labels in structs
2010 AC_MSG_CHECKING(for label support in structs)
2011 AC_TRY_COMPILE([], [
2012 extern void osi_UFSOpen(void);
2013 struct labeltest {
2014    void (*open) (void);
2015 };
2016 struct labeltest struct_labeltest = {
2017    .open       = osi_UFSOpen,
2018 }
2019 ],
2020 [AC_MSG_RESULT(yes)
2021  AC_DEFINE(HAVE_STRUCT_LABEL_SUPPORT, 1, [Define to 1 if your compiler supports labels in structs.])
2022 ],
2023 [AC_MSG_RESULT(no)
2024 ])
2025
2026 AC_MSG_CHECKING([checking for dirfd])
2027 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
2028 #ifdef HAVE_DIRENT_H
2029 #include <dirent.h>
2030 #endif
2031 ]],
2032         [[DIR *d = 0; dirfd(d);]])],
2033         [ac_rk_have_dirfd=yes], [ac_rk_have_dirfd=no])
2034 if test "$ac_rk_have_dirfd" = "yes" ; then
2035         AC_DEFINE_UNQUOTED(HAVE_DIRFD, 1, [have a dirfd function/macro])
2036 fi
2037 AC_MSG_RESULT($ac_rk_have_dirfd)
2038
2039 OPENAFS_HAVE_STRUCT_FIELD(DIR, dd_fd, [#include <sys/types.h>
2040 #ifdef HAVE_DIRENT_H
2041 #include <dirent.h>
2042 #endif])
2043
2044 OPENAFS_HAVE_STRUCT_FIELD(struct rusage, ru_idrss,
2045 [#ifdef HAVE_SYS_RESOURCE_H
2046 #include <sys/resource.h>
2047 #endif])
2048
2049 dnl Check for UUID library
2050 AC_CHECK_HEADERS([uuid/uuid.h])
2051 AC_CHECK_LIB(uuid, uuid_generate, LIBS_uuid="-luuid")
2052 AC_CHECK_FUNCS([uuid_generate])
2053 ])
2054
2055