afs: Avoid incorrect size when fetching beyond EOF
[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_type], [instantiate_prep], [key-type.h])
952                  AC_CHECK_LINUX_STRUCT([key_type], [match_preparse], [key-type.h])
953                  AC_CHECK_LINUX_STRUCT([key_type], [preparse], [key-type.h])
954                  AC_CHECK_LINUX_STRUCT([msghdr], [msg_iter], [socket.h])
955                  AC_CHECK_LINUX_STRUCT([nameidata], [path], [namei.h])
956                  AC_CHECK_LINUX_STRUCT([proc_dir_entry], [owner], [proc_fs.h])
957                  AC_CHECK_LINUX_STRUCT([super_block], [s_bdi], [fs.h])
958                  AC_CHECK_LINUX_STRUCT([super_block], [s_d_op], [fs.h])
959                  AC_CHECK_LINUX_STRUCT([super_operations], [alloc_inode],
960                                        [fs.h])
961                  AC_CHECK_LINUX_STRUCT([super_operations], [evict_inode],
962                                        [fs.h])
963                  AC_CHECK_LINUX_STRUCT([task_struct], [cred], [sched.h])
964                  AC_CHECK_LINUX_STRUCT([task_struct], [exit_state], [sched.h])
965                  AC_CHECK_LINUX_STRUCT([task_struct], [parent], [sched.h])
966                  AC_CHECK_LINUX_STRUCT([task_struct], [real_parent], [sched.h])
967                  AC_CHECK_LINUX_STRUCT([task_struct], [rlim], [sched.h])
968                  AC_CHECK_LINUX_STRUCT([task_struct], [sig], [sched.h])
969                  AC_CHECK_LINUX_STRUCT([task_struct], [sighand], [sched.h])
970                  AC_CHECK_LINUX_STRUCT([task_struct], [sigmask_lock], [sched.h])
971                  AC_CHECK_LINUX_STRUCT([task_struct], [tgid], [sched.h])
972                  AC_CHECK_LINUX_STRUCT([task_struct], [thread_info], [sched.h])
973                  AC_CHECK_LINUX_STRUCT([task_struct], [total_link_count], [sched.h])
974                  LINUX_SCHED_STRUCT_TASK_STRUCT_HAS_SIGNAL_RLIM
975
976                  dnl Check for typed structure elements
977                  AC_CHECK_LINUX_TYPED_STRUCT([read_descriptor_t],
978                                              [buf], [fs.h])
979
980                  dnl Function existence checks
981
982                  AC_CHECK_LINUX_FUNC([__vfs_read],
983                                      [#include <linux/fs.h>],
984                                      [__vfs_read(NULL, NULL, 0, NULL);])
985                  AC_CHECK_LINUX_FUNC([bdi_init],
986                                      [#include <linux/backing-dev.h>],
987                                      [bdi_init(NULL);])
988                  AC_CHECK_LINUX_FUNC([PageChecked],
989                                      [#include <linux/mm.h>
990 #include <linux/page-flags.h>],
991                                      [struct page *_page;
992                                       int bchecked = PageChecked(_page);])
993                  AC_CHECK_LINUX_FUNC([PageFsMisc],
994                                      [#include <linux/mm.h>
995 #include <linux/page-flags.h>],
996                                      [struct page *_page;
997                                       int bchecked = PageFsMisc(_page);])
998                  AC_CHECK_LINUX_FUNC([clear_inode],
999                                      [#include <linux/fs.h>],
1000                                      [clear_inode(NULL);])
1001                  AC_CHECK_LINUX_FUNC([current_kernel_time],
1002                                      [#include <linux/time.h>],
1003                                      [struct timespec s;
1004                                       s = current_kernel_time();])
1005                  AC_CHECK_LINUX_FUNC([d_alloc_anon],
1006                                      [#include <linux/fs.h>],
1007                                      [d_alloc_anon(NULL);])
1008                  AC_CHECK_LINUX_FUNC([d_count],
1009                                      [#include <linux/dcache.h>],
1010                                      [d_count(NULL);])
1011                  AC_CHECK_LINUX_FUNC([d_make_root],
1012                                      [#include <linux/fs.h>],
1013                                      [d_make_root(NULL);])
1014                  AC_CHECK_LINUX_FUNC([do_sync_read],
1015                                      [#include <linux/fs.h>],
1016                                      [do_sync_read(NULL, NULL, 0, NULL);])
1017                  AC_CHECK_LINUX_FUNC([find_task_by_pid],
1018                                      [#include <linux/sched.h>],
1019                                      [pid_t p; find_task_by_pid(p);])
1020                  AC_CHECK_LINUX_FUNC([generic_file_aio_read],
1021                                      [#include <linux/fs.h>],
1022                                      [generic_file_aio_read(NULL,NULL,0,0);])
1023                  AC_CHECK_LINUX_FUNC([grab_cache_page_write_begin],
1024                                      [#include <linux/pagemap.h>],
1025                                      [grab_cache_page_write_begin(NULL, 0, 0);])
1026                  AC_CHECK_LINUX_FUNC([hlist_unhashed],
1027                                      [#include <linux/list.h>],
1028                                      [hlist_unhashed(0);])
1029                  AC_CHECK_LINUX_FUNC([ihold],
1030                                      [#include <linux/fs.h>],
1031                                      [ihold(NULL);])
1032                  AC_CHECK_LINUX_FUNC([i_size_read],
1033                                      [#include <linux/fs.h>],
1034                                      [i_size_read(NULL);])
1035                  AC_CHECK_LINUX_FUNC([inode_setattr],
1036                                      [#include <linux/fs.h>],
1037                                      [inode_setattr(NULL, NULL);])
1038                  AC_CHECK_LINUX_FUNC([iter_file_splice_write],
1039                                      [#include <linux/fs.h>],
1040                                      [iter_file_splice_write(NULL,NULL,NULL,0,0);])
1041                  AC_CHECK_LINUX_FUNC([kernel_setsockopt],
1042                                      [#include <linux/net.h>],
1043                                      [kernel_setsockopt(NULL, 0, 0, NULL, 0);])
1044                  AC_CHECK_LINUX_FUNC([page_follow_link],
1045                                      [#include <linux/fs.h>],
1046                                      [page_follow_link(0,0);])
1047                  AC_CHECK_LINUX_FUNC([page_offset],
1048                                      [#include <linux/pagemap.h>],
1049                                      [page_offset(NULL);])
1050                  AC_CHECK_LINUX_FUNC([pagevec_lru_add_file],
1051                                      [#include <linux/pagevec.h>],
1052                                      [__pagevec_lru_add_file(NULL);])
1053                  AC_CHECK_LINUX_FUNC([path_lookup],
1054                                      [#include <linux/fs.h>
1055                                       #include <linux/namei.h>],
1056                                      [path_lookup(NULL, 0, NULL);])
1057                  AC_CHECK_LINUX_FUNC([proc_create],
1058                                      [#include <linux/proc_fs.h>],
1059                                      [proc_create(NULL, 0, NULL, NULL);])
1060                  AC_CHECK_LINUX_FUNC([rcu_read_lock],
1061                                      [#include <linux/rcupdate.h>],
1062                                      [rcu_read_lock();])
1063                  AC_CHECK_LINUX_FUNC([set_nlink],
1064                                      [#include <linux/fs.h>],
1065                                      [set_nlink(NULL, 1);])
1066                  AC_CHECK_LINUX_FUNC([sock_create_kern],
1067                                      [#include <linux/net.h>],
1068                                      [sock_create_kern(0, 0, 0, NULL);])
1069                  AC_CHECK_LINUX_FUNC([sock_create_kern_ns],
1070                                      [#include <linux/net.h>],
1071                                      [sock_create_kern(NULL, 0, 0, 0, NULL);])
1072                  AC_CHECK_LINUX_FUNC([splice_direct_to_actor],
1073                                      [#include <linux/splice.h>],
1074                                      [splice_direct_to_actor(NULL,NULL,NULL);])
1075                  AC_CHECK_LINUX_FUNC([svc_addr_in],
1076                                      [#include <linux/sunrpc/svc.h>],
1077                                      [svc_addr_in(NULL);])
1078                  AC_CHECK_LINUX_FUNC([zero_user_segments],
1079                                      [#include <linux/highmem.h>],
1080                                      [zero_user_segments(NULL, 0, 0, 0, 0);])
1081                  AC_CHECK_LINUX_FUNC([noop_fsync],
1082                                      [#include <linux/fs.h>],
1083                                      [void *address = &noop_fsync; printk("%p\n", address)];)
1084                  AC_CHECK_LINUX_FUNC([kthread_run],
1085                                      [#include <linux/kernel.h>
1086                                       #include <linux/kthread.h>],
1087                                      [kthread_run(NULL, NULL, "test");])
1088
1089                  dnl Consequences - things which get set as a result of the
1090                  dnl                above tests
1091                  AS_IF([test "x$ac_cv_linux_func_d_alloc_anon" = "xno"],
1092                        [AC_DEFINE([AFS_NONFSTRANS], 1,
1093                                   [define to disable the nfs translator])])
1094
1095                  dnl Assorted more complex tests
1096                  LINUX_AIO_NONVECTOR
1097                  LINUX_EXPORTS_PROC_ROOT_FS
1098                  LINUX_KMEM_CACHE_INIT
1099                  LINUX_HAVE_KMEM_CACHE_T
1100                  LINUX_KMEM_CACHE_CREATE_TAKES_DTOR
1101                  LINUX_KMEM_CACHE_CREATE_CTOR_TAKES_VOID
1102                  LINUX_D_PATH_TAKES_STRUCT_PATH
1103                  LINUX_NEW_EXPORT_OPS
1104                  LINUX_INODE_SETATTR_RETURN_TYPE
1105                  LINUX_IOP_I_CREATE_TAKES_NAMEIDATA
1106                  LINUX_IOP_I_LOOKUP_TAKES_NAMEIDATA
1107                  LINUX_IOP_I_PERMISSION_TAKES_FLAGS
1108                  LINUX_IOP_I_PERMISSION_TAKES_NAMEIDATA
1109                  LINUX_IOP_I_PUT_LINK_TAKES_COOKIE
1110                  LINUX_DOP_D_DELETE_TAKES_CONST
1111                  LINUX_DOP_D_REVALIDATE_TAKES_NAMEIDATA
1112                  LINUX_FOP_F_FLUSH_TAKES_FL_OWNER_T
1113                  LINUX_FOP_F_FSYNC_TAKES_DENTRY
1114                  LINUX_FOP_F_FSYNC_TAKES_RANGE
1115                  LINUX_AOP_WRITEBACK_CONTROL
1116                  LINUX_FS_STRUCT_FOP_HAS_SPLICE
1117                  LINUX_KERNEL_POSIX_LOCK_FILE_WAIT_ARG
1118                  LINUX_POSIX_TEST_LOCK_RETURNS_CONFLICT
1119                  LINUX_POSIX_TEST_LOCK_CONFLICT_ARG
1120                  LINUX_KERNEL_SOCK_CREATE
1121                  LINUX_EXPORTS_KEY_TYPE_KEYRING
1122                  LINUX_NEED_RHCONFIG
1123                  LINUX_RECALC_SIGPENDING_ARG_TYPE
1124                  LINUX_EXPORTS_TASKLIST_LOCK
1125                  LINUX_GET_SB_HAS_STRUCT_VFSMOUNT
1126                  LINUX_STATFS_TAKES_DENTRY
1127                  LINUX_REFRIGERATOR
1128                  LINUX_HAVE_TRY_TO_FREEZE
1129                  LINUX_LINUX_KEYRING_SUPPORT
1130                  LINUX_KEY_ALLOC_NEEDS_STRUCT_TASK
1131                  LINUX_KEY_ALLOC_NEEDS_CRED
1132                  LINUX_INIT_WORK_HAS_DATA
1133                  LINUX_REGISTER_SYSCTL_TABLE_NOFLAG
1134                  LINUX_HAVE_DCACHE_LOCK
1135                  LINUX_D_COUNT_IS_INT
1136                  LINUX_IOP_MKDIR_TAKES_UMODE_T
1137                  LINUX_IOP_CREATE_TAKES_UMODE_T
1138                  LINUX_EXPORT_OP_ENCODE_FH_TAKES_INODES
1139                  LINUX_KMAP_ATOMIC_TAKES_NO_KM_TYPE
1140                  LINUX_DENTRY_OPEN_TAKES_PATH
1141                  LINUX_D_ALIAS_IS_HLIST
1142                  LINUX_HLIST_ITERATOR_NO_NODE
1143                  LINUX_IOP_I_CREATE_TAKES_BOOL
1144                  LINUX_DOP_D_REVALIDATE_TAKES_UNSIGNED
1145                  LINUX_IOP_LOOKUP_TAKES_UNSIGNED
1146                  LINUX_D_INVALIDATE_IS_VOID
1147
1148                  dnl If we are guaranteed that keyrings will work - that is
1149                  dnl  a) The kernel has keyrings enabled
1150                  dnl  b) The code is new enough to give us a key_type_keyring
1151                  dnl then we just disable syscall probing unless we've been
1152                  dnl told otherwise
1153
1154                  AS_IF([test "$enable_linux_syscall_probing" = "maybe"],
1155                    [AS_IF([test "$ac_cv_linux_keyring_support" = "yes" -a "$ac_cv_linux_exports_key_type_keyring" = "yes"],
1156                           [enable_linux_syscall_probing="no"],
1157                           [enable_linux_syscall_probing="yes"])
1158                  ])
1159
1160                  dnl Syscall probing needs a few tests of its own, and just
1161                  dnl won't work if the kernel doesn't export init_mm
1162                  AS_IF([test "$enable_linux_syscall_probing" = "yes"], [
1163                    LINUX_EXPORTS_INIT_MM
1164                    AS_IF([test "$ac_cv_linux_exports_init_mm" = "no"], [
1165                      AC_MSG_ERROR(
1166                        [Can't do syscall probing without exported init_mm])
1167                    ])
1168                    LINUX_EXPORTS_SYS_CHDIR
1169                    LINUX_EXPORTS_SYS_OPEN
1170                    AC_DEFINE(ENABLE_LINUX_SYSCALL_PROBING, 1,
1171                              [define to enable syscall table probes])
1172                  ])
1173
1174                  dnl Packaging and SMP build
1175                  if test "x$with_linux_kernel_packaging" != "xyes" ; then
1176                    LINUX_WHICH_MODULES
1177                  else
1178                    AC_SUBST(MPS,'SP')
1179                  fi
1180
1181                  dnl Syscall probing
1182                  if test "x$ac_cv_linux_config_modversions" = "xno" -o $AFS_SYSKVERS -ge 26; then
1183                    AS_IF([test "$enable_linux_syscall_probing" = "yes"], [
1184                      AC_MSG_WARN([Cannot determine sys_call_table status. assuming it isn't exported])
1185                    ])
1186                    ac_cv_linux_exports_sys_call_table=no
1187                    if test -f "$LINUX_KERNEL_PATH/include/asm/ia32_unistd.h"; then
1188                      ac_cv_linux_exports_ia32_sys_call_table=yes
1189                    fi
1190                  else
1191                    LINUX_EXPORTS_KALLSYMS_ADDRESS
1192                    LINUX_EXPORTS_KALLSYMS_SYMBOL
1193                    LINUX_EXPORTS_SYS_CALL_TABLE
1194                    LINUX_EXPORTS_IA32_SYS_CALL_TABLE
1195                    if test "x$ac_cv_linux_exports_sys_call_table" = "xno"; then
1196                          linux_syscall_method=none
1197                          if test "x$ac_cv_linux_exports_init_mm" = "xyes"; then
1198                             linux_syscall_method=scan
1199                             if test "x$ac_cv_linux_exports_kallsyms_address" = "xyes"; then
1200                                linux_syscall_method=scan_with_kallsyms_address
1201                             fi
1202                          fi
1203                          if test "x$ac_cv_linux_exports_kallsyms_symbol" = "xyes"; then
1204                             linux_syscall_method=kallsyms_symbol
1205                          fi
1206                          if test "x$linux_syscall_method" = "xnone"; then
1207                             AC_MSG_WARN([no available sys_call_table access method -- guessing scan])
1208                             linux_syscall_method=scan
1209                          fi
1210                    fi
1211                  fi
1212                  if test -f "$LINUX_KERNEL_PATH/include/linux/in_systm.h"; then
1213                   AC_DEFINE(HAVE_IN_SYSTM_H, 1, [define if you have in_systm.h header file])
1214                  fi
1215                  if test -f "$LINUX_KERNEL_PATH/include/linux/mm_inline.h"; then
1216                   AC_DEFINE(HAVE_MM_INLINE_H, 1, [define if you have mm_inline.h header file])
1217                  fi
1218                  if test "x$ac_cv_linux_kernel_page_follow_link" = "xyes" -o "x$ac_cv_linux_func_i_put_link_takes_cookie" = "xyes"; then
1219                   AC_DEFINE(USABLE_KERNEL_PAGE_SYMLINK_CACHE, 1, [define if your kernel has a usable symlink cache API])
1220                  else
1221                   AC_MSG_WARN([your kernel does not have a usable symlink cache API])
1222                  fi
1223                 :
1224                 fi
1225                 if test "x$enable_linux_d_splice_alias_extra_iput" = xyes; then
1226                     AC_DEFINE(D_SPLICE_ALIAS_LEAK_ON_ERROR, 1, [for internal use])
1227                 fi
1228 dnl Linux-only, but just enable always.
1229                 AC_DEFINE(AFS_CACHE_BYPASS, 1, [define to activate cache bypassing Unix client])
1230 esac
1231
1232 AC_CACHE_CHECK([if compiler has __sync_add_and_fetch],
1233     [ac_cv_sync_fetch_and_add],
1234     [AC_TRY_LINK(, [int var; return __sync_add_and_fetch(&var, 1);],
1235                     [ac_cv_sync_fetch_and_add=yes],
1236                     [ac_cv_sync_fetch_and_add=no])
1237 ])
1238 AS_IF([test "$ac_cv_sync_fetch_and_add" = "yes"],
1239       [AC_DEFINE(HAVE_SYNC_FETCH_AND_ADD, 1,
1240                 [define if your C compiler has __sync_add_and_fetch])])
1241
1242 AC_CACHE_CHECK([if struct sockaddr has sa_len field],
1243     [ac_cv_sockaddr_len],
1244     [AC_TRY_COMPILE( [#include <sys/types.h>
1245 #include <sys/socket.h>],
1246                      [struct sockaddr *a; a->sa_len=0;],
1247                      [ac_cv_sockaddr_len=yes],
1248                      [ac_cv_sockaddr_len=no])
1249 ])
1250 AS_IF([test "$ac_cv_sockaddr_len" = "yes"],
1251       [AC_DEFINE(STRUCT_SOCKADDR_HAS_SA_LEN, 1,
1252                  [define if you struct sockaddr sa_len])])
1253
1254 if test "x${MKAFS_OSTYPE}" = "xIRIX"; then
1255         echo Skipping library tests because they confuse Irix.
1256 else
1257   AC_SEARCH_LIBS([socket], [socket inet])
1258   AC_SEARCH_LIBS([connect], [nsl])
1259   AC_SEARCH_LIBS([gethostbyname], [dns nsl resolv])
1260
1261   dnl darwin wants it, aix hates it
1262   AC_MSG_CHECKING(for the useability of arpa/nameser_compat.h)
1263   AC_TRY_COMPILE([
1264   #include <stdlib.h>
1265   #include <stdio.h>
1266   #include <sys/types.h>
1267   #include <sys/socket.h>
1268   #include <netinet/in.h>
1269   #include <arpa/inet.h>
1270   #include <arpa/nameser.h>
1271   #include <arpa/nameser_compat.h>
1272   #include <resolv.h>
1273   ], [static int i; i = 0;],
1274   [AC_MSG_RESULT(yes)
1275    AC_DEFINE(HAVE_ARPA_NAMESER_COMPAT_H, 1, [define if arpa/nameser_compat.h exists])],
1276   [AC_MSG_RESULT(no)
1277    ])
1278
1279   openafs_save_libs="$LIBS"
1280   AC_MSG_CHECKING([for res_search])
1281   AC_FUNC_RES_SEARCH
1282
1283   if test "$ac_cv_func_res_search" = no; then
1284       for lib in dns nsl resolv; do
1285         if test "$ac_cv_func_res_search" != yes; then
1286           LIBS="-l$lib $LIBS"
1287           AC_FUNC_RES_SEARCH
1288           LIBS="$openafs_save_libs"
1289         fi
1290       done    
1291       if test "$ac_cv_func_res_search" = yes; then
1292         LIB_AFSDB="-l$lib"
1293         AC_DEFINE(HAVE_RES_SEARCH, 1, [])
1294         AC_MSG_RESULT([yes, in lib$lib])
1295       else
1296         AC_MSG_RESULT(no)
1297       fi
1298   else
1299     AC_DEFINE(HAVE_RES_SEARCH, 1, [])
1300     AC_MSG_RESULT(yes)
1301   fi
1302   
1303 fi
1304 XLIBS="$LIB_AFSDB $XLIBS"
1305
1306 AC_CHECK_RESOLV_RETRANS
1307
1308 AC_CACHE_CHECK([for setsockopt(, SOL_IP, IP_RECVERR)],
1309     [ac_cv_setsockopt_iprecverr],
1310     [AC_TRY_COMPILE( [
1311 #include <sys/types.h>
1312 #include <sys/socket.h>
1313 #include <netinet/in.h>],
1314 [int on=1;
1315 setsockopt(0, SOL_IP, IP_RECVERR, &on, sizeof(on));],
1316         [ac_cv_setsockopt_iprecverr=yes],
1317         [ac_cv_setsockopt_iprecverr=no])])
1318
1319 AS_IF([test "$ac_cv_setsockopt_iprecverr" = "yes"],
1320       [AC_DEFINE([HAVE_SETSOCKOPT_IP_RECVERR], [1],
1321                  [define if we can receive socket errors via IP_RECVERR])])
1322
1323 PTHREAD_LIBS=error
1324 if test "x$MKAFS_OSTYPE" = OBSD; then
1325         PTHREAD_LIBS="-pthread"
1326 fi
1327 if test "x$MKAFS_OSTYPE" = xDFBSD; then
1328         PTHREAD_LIBS="-pthread"
1329 fi
1330 if test "x$PTHREAD_LIBS" = xerror; then
1331         AC_CHECK_LIB(pthread, pthread_attr_init,
1332                 PTHREAD_LIBS="-lpthread")
1333 fi
1334 if test "x$PTHREAD_LIBS" = xerror; then
1335         AC_CHECK_LIB(pthreads, pthread_attr_init,
1336                 PTHREAD_LIBS="-lpthreads")
1337 fi
1338 if test "x$PTHREAD_LIBS" = xerror; then
1339         AC_CHECK_LIB(c_r, pthread_attr_init,
1340                 PTHREAD_LIBS="-lc_r")
1341 fi
1342 if test "x$PTHREAD_LIBS" = xerror; then
1343         AC_CHECK_FUNC(pthread_attr_init, PTHREAD_LIBS="")
1344 fi
1345 if test "x$PTHREAD_LIBS" = xerror; then
1346         # pthread_attr_init is a macro under HPUX 11.0 and 11.11
1347         AC_CHECK_LIB(pthread, pthread_attr_destroy,
1348                 PTHREAD_LIBS="-lpthread")
1349 fi
1350 if test "x$PTHREAD_LIBS" = xerror; then
1351         AC_MSG_WARN(*** Unable to locate working posix thread library ***)
1352 fi
1353 AC_SUBST(PTHREAD_LIBS)
1354
1355 HOST_CPU="$host_cpu"
1356
1357 if test "x$with_bsd_kernel_headers" != "x"; then
1358         BSD_KERNEL_PATH="$with_bsd_kernel_headers"
1359 else
1360         BSD_KERNEL_PATH="/usr/src/sys"
1361 fi
1362
1363 if test "x$with_bsd_kernel_build" != "x"; then
1364         BSD_KERNEL_BUILD="$with_bsd_kernel_build"
1365 else
1366         case $AFS_SYSNAME in
1367                 *_fbsd_*)
1368                         BSD_KERNEL_BUILD="${BSD_KERNEL_PATH}/${HOST_CPU}/compile/GENERIC"
1369                         ;;
1370                 *_nbsd*)
1371                         BSD_KERNEL_BUILD="${BSD_KERNEL_PATH}/arch/${HOST_CPU}/compile/GENERIC"
1372         esac
1373 fi
1374
1375 # Fast restart
1376 if test "$enable_supergroups" = "yes"; then
1377         AC_DEFINE(SUPERGROUPS, 1, [define if you want to have support for nested pts groups])
1378 fi
1379
1380 if test "$enable_bitmap_later" = "yes"; then
1381         AC_DEFINE(BITMAP_LATER, 1, [define if you want to salvager to check bitmasks later])
1382 fi
1383
1384 if test "$enable_unix_sockets" = "yes"; then
1385         AC_DEFINE(USE_UNIX_SOCKETS, 1, [define if you want to use UNIX sockets for fssync.])
1386         USE_UNIX_SOCKETS="yes"
1387 else
1388         USE_UNIX_SOCKETS="no"
1389 fi
1390 AC_SUBST(USE_UNIX_SOCKETS)
1391
1392 if test "$enable_namei_fileserver" = "yes"; then
1393         AC_DEFINE(AFS_NAMEI_ENV, 1, [define if you want to want namei fileserver])
1394         VFSCK=""
1395 else
1396         if test "$enable_namei_fileserver" = "default"; then
1397                 case $host in
1398                         *-solaris2.10*)
1399                                 AC_MSG_WARN(Some Solaris 10 versions are not safe with the inode fileserver. Forcing namei. Override with --disable-namei-fileserver)
1400                                 AC_DEFINE(AFS_NAMEI_ENV, 1, [define if you want to want namei fileserver])
1401                                 VFSCK=""
1402                                 ;;
1403                         *-solaris2.11*)
1404                                 AC_MSG_WARN(Solaris 11 versions are not safe with the inode fileserver. Forcing namei. Override with --disable-namei-fileserver)
1405                                 AC_DEFINE(AFS_NAMEI_ENV, 1, [define if you want to want namei fileserver])
1406                                 VFSCK=""
1407                                 ;;
1408                         *)
1409                                 VFSCK="vfsck"
1410                                 ;;
1411                 esac
1412         else
1413                 VFSCK="vfsck"
1414         fi
1415 fi
1416
1417 dnl check for tivoli
1418 AC_MSG_CHECKING(for tivoli tsm butc support)
1419 XBSA_CFLAGS=""
1420 if test "$enable_tivoli_tsm" = "yes"; then
1421         XBSADIR1=/usr/tivoli/tsm/client/api/bin/xopen
1422         XBSADIR2=/opt/tivoli/tsm/client/api/bin/xopen
1423         XBSADIR3=/usr/tivoli/tsm/client/api/bin/sample
1424         XBSADIR4=/opt/tivoli/tsm/client/api/bin/sample
1425
1426         if test -r "$XBSADIR3/dsmapifp.h"; then
1427                 XBSA_CFLAGS="-Dxbsa -DNEW_XBSA -I$XBSADIR3"
1428                 XBSA_XLIBS="-ldl"
1429                 AC_MSG_RESULT([yes, $XBSA_CFLAGS])
1430         elif test -r "$XBSADIR4/dsmapifp.h"; then
1431                 XBSA_CFLAGS="-Dxbsa -DNEW_XBSA -I$XBSADIR4"
1432                 XBSA_XLIBS="-ldl"
1433                 AC_MSG_RESULT([yes, $XBSA_CFLAGS])
1434         elif test -r "$XBSADIR1/xbsa.h"; then
1435                 XBSA_CFLAGS="-Dxbsa -I$XBSADIR1"
1436                 XBSA_XLIBS=""
1437                 AC_MSG_RESULT([yes, $XBSA_CFLAGS])
1438         elif test -r "$XBSADIR2/xbsa.h"; then
1439                 XBSA_CFLAGS="-Dxbsa -I$XBSADIR2"
1440                 XBSA_XLIBS=""
1441                 AC_MSG_RESULT([yes, $XBSA_CFLAGS])
1442         else
1443                 AC_MSG_RESULT([no, missing xbsa.h and dsmapifp.h header files])
1444         fi
1445 else
1446         AC_MSG_RESULT([no])
1447 fi
1448 AC_SUBST(XBSA_CFLAGS)
1449 AC_SUBST(XBSA_XLIBS) 
1450 XLIBS="$XBSA_XLIBS $XLIBS"
1451
1452 dnl checks for header files.
1453 AC_HEADER_STDC
1454 AC_HEADER_SYS_WAIT
1455 AC_HEADER_DIRENT
1456 AC_CHECK_HEADERS([ \
1457                    arpa/inet.h \
1458                    arpa/nameser.h \
1459                    curses.h\
1460                    direct.h \
1461                    errno.h \
1462                    fcntl.h \
1463                    grp.h \
1464                    math.h \
1465                    mntent.h \
1466                    ncurses.h \
1467                    ncurses/ncurses.h \
1468                    netdb.h \
1469                    netinet/in.h \
1470                    pthread_np.h \
1471                    pwd.h \
1472                    regex.h \
1473                    security/pam_appl.h \
1474                    signal.h \
1475                    stdint.h \
1476                    stdio_ext.h \
1477                    stdlib.h \
1478                    string.h \
1479                    strings.h \
1480                    sys/bitypes.h \
1481                    sys/bswap.h \
1482                    sys/dk.h \
1483                    sys/fcntl.h \
1484                    sys/file.h \
1485                    sys/fs_types.h \
1486                    sys/fstyp.h \
1487                    sys/ioctl.h \
1488                    sys/ipc.h \
1489                    sys/lockf.h \
1490                    sys/map.h \
1491                    sys/mount.h \
1492                    sys/mntent.h \
1493                    sys/mnttab.h \
1494                    sys/pag.h \
1495                    sys/param.h \
1496                    sys/resource.h \
1497                    sys/select.h \
1498                    sys/statfs.h \
1499                    sys/statvfs.h \
1500                    sys/socket.h \
1501                    sys/sysctl.h \
1502                    sys/time.h \
1503                    sys/types.h \
1504                    sys/uio.h \
1505                    sys/un.h \
1506                    sys/vfs.h \
1507                    syslog.h \
1508                    termios.h \
1509                    time.h \
1510                    ucontext.h \
1511                    unistd.h \
1512                    windows.h \
1513                 ])
1514
1515 AC_CHECK_HEADERS([resolv.h], [], [], [AC_INCLUDES_DEFAULT
1516 #ifdef HAVE_NETINET_IN_H
1517 # include <netinet/in.h>
1518 #endif])
1519
1520 AC_CHECK_HEADERS([net/if.h],[],[],[AC_INCLUDES_DEFAULT
1521 #ifdef HAVE_SYS_SOCKET_H
1522 # include <sys/socket.h>
1523 #endif])
1524
1525 AC_CHECK_HEADERS([netinet/if_ether.h],[],[],[AC_INCLUDES_DEFAULT
1526 #ifdef HAVE_SYS_SOCKET_H
1527 # include <sys/socket.h>
1528 #endif
1529 #ifdef HAVE_NETINET_IN_H
1530 # include <netinet/in.h>
1531 #endif
1532 #ifdef HAVE_NET_IF_H
1533 # include <net/if.h>
1534 #endif])
1535
1536 AC_CHECK_HEADERS([security/pam_modules.h],[],[],[AC_INCLUDES_DEFAULT
1537 #ifdef HAVE_SECURITY_PAM_APPL_H
1538 # include <security/pam_appl.h>
1539 #endif])
1540
1541 AC_CHECK_HEADERS(linux/errqueue.h,,,[#include <linux/types.h>])
1542
1543 AC_CHECK_TYPES([fsblkcnt_t],,,[
1544 #include <sys/types.h>
1545 #ifdef HAVE_SYS_BITYPES_H
1546 #include <sys/bitypes.h>
1547 #endif
1548 #ifdef HAVE_SYS_STATFS_H
1549 #include <sys/statfs.h>
1550 #endif
1551 #ifdef HAVE_SYS_STATVFS_H
1552 #include <sys/statvfs.h>
1553 #endif
1554 ])
1555
1556 dnl see what struct stat has for timestamps
1557 AC_CHECK_MEMBERS([struct stat.st_ctimespec, struct stat.st_ctimensec])
1558
1559 OPENAFS_TEST_PACKAGE(libintl,[#include <libintl.h>],[-lintl],,,INTL)
1560
1561 if test "$enable_debug_locks" = yes; then
1562         AC_DEFINE(OPR_DEBUG_LOCKS, 1, [turn on lock debugging in opr])
1563 fi
1564
1565 if test "$ac_cv_header_security_pam_modules_h" = yes -a "$enable_pam" = yes; then
1566         HAVE_PAM="YES"
1567 else
1568         HAVE_PAM="no"
1569 fi
1570 AC_SUBST(HAVE_PAM)
1571
1572 if test "$enable_login" = yes; then
1573         BUILD_LOGIN="yes"
1574 else
1575         BUILD_LOGIN="no"
1576 fi
1577 AC_SUBST(BUILD_LOGIN)
1578
1579 if test "$enable_kauth" = yes; then
1580         INSTALL_KAUTH="yes"
1581 else
1582         INSTALL_KAUTH="no"
1583 fi
1584 AC_SUBST(INSTALL_KAUTH)
1585
1586 AC_CHECK_FUNCS([ \
1587         arc4random \
1588         fcntl \
1589         fseeko64 \
1590         ftello64 \
1591         getcwd \
1592         getegid \
1593         geteuid \
1594         getgid \
1595         getuid \
1596         getrlimit \
1597         issetugid \
1598         mkstemp \
1599         poll \
1600         pread \
1601         preadv \
1602         preadv64 \
1603         pwrite \
1604         pwritev \
1605         pwritev64 \
1606         regcomp \
1607         regerror \
1608         regexec \
1609         setitimer \
1610         setvbuf \
1611         sigaction \
1612         strcasestr \
1613         strerror \
1614         sysconf \
1615         sysctl \
1616         tdestroy \
1617         timegm \
1618 ])
1619
1620 OPENAFS_ROKEN()
1621 OPENAFS_HCRYPTO()
1622 OPENAFS_CURSES()
1623 OPENAFS_C_ATTRIBUTE()
1624
1625 dnl Functions that Heimdal's libroken provides, but that we
1626 dnl haven't found a need for yet, and so haven't imported
1627 AC_CHECK_FUNCS([ \
1628         chown \
1629         fchown \
1630         gethostname \
1631         lstat \
1632         inet_aton \
1633         putenv \
1634         readv \
1635         setenv \
1636         strdup \
1637         strftime \
1638         strndup \
1639         strsep \
1640         unsetenv \
1641 ])
1642
1643 dnl Functions that are in objects that we always build from libroken
1644 AC_CHECK_FUNCS([ \
1645         asprintf \
1646         asnprintf \
1647         vasprintf \
1648         vasnprintf \
1649         vsnprintf \
1650         snprintf \
1651 ])
1652
1653 dnl Functions that we're going to try and get from libroken
1654 AC_REPLACE_FUNCS([ \
1655         daemon \
1656         ecalloc \
1657         emalloc \
1658         erealloc \
1659         err \
1660         errx \
1661         flock \
1662         freeaddrinfo \
1663         gai_strerror \
1664         getaddrinfo \
1665         getdtablesize \
1666         getnameinfo \
1667         getopt \
1668         getprogname \
1669         gettimeofday \
1670         inet_ntop \
1671         inet_pton \
1672         localtime_r \
1673         mkstemp \
1674         setenv \
1675         setprogname \
1676         strcasecmp \
1677         strlcat \
1678         strnlen \
1679         strlcpy \
1680         strsep \
1681         tdelete \
1682         tfind \
1683         tsearch \
1684         twalk \
1685         unsetenv \
1686         verr \
1687         verrx \
1688         vsyslog \
1689         vwarn \
1690         vwarnx \
1691         warn \
1692         warnx \
1693 ])
1694
1695 dnl Headers that we're going to try and get from libroken
1696 AC_CHECK_HEADERS([ \
1697         err.h \
1698         search.h \
1699 ])
1700
1701 AC_CHECK_DECLS([h_errno], [], [], [
1702 #include <sys/types.h>
1703 #ifdef HAVE_NETDB_H
1704 #include <netdb.h>
1705 #endif
1706 ])
1707
1708 AC_HEADER_TIME
1709
1710 ROKEN_HEADERS=
1711 AS_IF([test "$ac_cv_header_err_h" != "yes" ],
1712       [ROKEN_HEADERS="$ROKEN_HEADERS \$(TOP_INCDIR)/err.h"],
1713       [])
1714 AC_SUBST(ROKEN_HEADERS)
1715
1716 dnl Stuff that's harder ...
1717 AC_MSG_CHECKING([for bswap16])
1718 AC_LINK_IFELSE([AC_LANG_PROGRAM([
1719 #ifdef HAVE_SYS_TYPES_H
1720 #include <sys/types.h>
1721 #endif
1722 #ifdef HAVE_SYS_BSWAP_H
1723 #include <sys/bswap.h>
1724 #endif
1725 ],
1726 [short a, b; b = bswap16(a); ])],
1727 [AC_MSG_RESULT(yes)
1728  AC_DEFINE(HAVE_BSWAP16, 1, [Define to 1 if you have the bswap16 function])
1729 ],
1730 [AC_MSG_RESULT(no)])
1731
1732 AC_MSG_CHECKING([for bswap32])
1733 AC_LINK_IFELSE([AC_LANG_PROGRAM([#ifdef HAVE_SYS_TYPES_H
1734 #include <sys/types.h>
1735 #endif
1736 #ifdef HAVE_SYS_BSWAP_H
1737 #include <sys/bswap.h>
1738 #endif
1739 ],
1740 [int a, b; b = bswap32(a); ])],
1741 [AC_MSG_RESULT(yes)
1742  AC_DEFINE(HAVE_BSWAP32, 1, [Define to 1 if you have the bswap32 function])
1743 ],
1744 [AC_MSG_RESULT(no)])
1745
1746 case $AFS_SYSNAME in
1747 *hp_ux* | *hpux*)
1748    AC_MSG_WARN([Some versions of HP-UX have a buggy positional I/O implementation. Forcing no positional I/O.])
1749    ;;
1750 *)
1751    AC_MSG_CHECKING([for positional I/O])
1752    if test "$ac_cv_func_pread" = "yes" && \
1753            test "$ac_cv_func_pwrite" = "yes"; then
1754       AC_DEFINE(HAVE_PIO, 1, [define if you have pread() and pwrite()])
1755       AC_MSG_RESULT(yes)
1756    else
1757      AC_MSG_RESULT(no)
1758    fi
1759    AC_MSG_CHECKING([for vectored positional I/O])
1760    AS_IF([test "$ac_cv_func_preadv" = "yes" -a \
1761                "$ac_cv_func_pwritev" = "yes" -a \
1762                "$ac_cv_func_preadv64" = "yes" -a \
1763                "$ac_cv_func_pwritev64" = "yes"],
1764          [AC_DEFINE(HAVE_PIOV, 1, [define if you have preadv() and pwritev()])
1765           AC_MSG_RESULT(yes)],
1766          [AC_MSG_RESULT(no)])
1767    ;;
1768 esac
1769
1770 AC_MSG_CHECKING([for POSIX regex library])
1771 if test "$ac_cv_header_regex_h" = "yes" && \
1772         test "$ac_cv_func_regcomp" = "yes" && \
1773         test "$ac_cv_func_regexec" = "yes" && \
1774         test "$ac_cv_func_regerror" = "yes"; then
1775     AC_DEFINE(HAVE_POSIX_REGEX, 1, [define if you have POSIX regex library])
1776     AC_MSG_RESULT(yes)
1777 else
1778     AC_MSG_RESULT(no)
1779 fi
1780
1781 dnl Look for "non-portable" pthreads functions.
1782 save_LIBS="$LIBS"
1783 LIBS="$LIBS $PTHREAD_LIBS"
1784 AC_CHECK_FUNCS([ \
1785         pthread_set_name_np \
1786         pthread_setname_np \
1787 ])
1788
1789 dnl Sadly, there are three different versions of pthread_setname_np.
1790 dnl Try to cater for all of them.
1791 if test "$ac_cv_func_pthread_setname_np" = "yes" ; then
1792     AC_MSG_CHECKING([for signature of pthread_setname_np])
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", (void *)0)], [
1799         AC_MSG_RESULT([three arguments])
1800         pthread_setname_np_args=3], [
1801         AC_TRY_COMPILE([
1802 #include <pthread.h>
1803 #ifdef HAVE_PTHREAD_NP_H
1804 #include <pthread_np.h>
1805 #endif
1806 ], [pthread_setname_np(pthread_self(), "test")], [
1807             AC_MSG_RESULT([two arguments])
1808             pthread_setname_np_args=2], [
1809             AC_TRY_COMPILE([
1810 #include <pthread.h>
1811 #ifdef HAVE_PTHREAD_NP_H
1812 #include <pthread_np.h>
1813 #endif
1814 ], [pthread_setname_np("test")], [
1815                 AC_MSG_RESULT([one argument])
1816                 pthread_setname_np_args=1], [pthread_setname_np_args=0])
1817 ])
1818 ])
1819 AC_DEFINE_UNQUOTED([PTHREAD_SETNAME_NP_ARGS], $pthread_setname_np_args, [Number of arguments required by pthread_setname_np() function])
1820 fi
1821 LIBS="$save_LIBS"
1822
1823 openafs_cv_saved_CFLAGS="$CFLAGS"
1824 CFLAGS="$CFLAGS $XCFLAGS_NOCHECKING"
1825
1826 AC_TYPE_SIGNAL
1827 OPENAFS_RETSIGTYPE
1828 AC_CHECK_SIZEOF(void *)
1829 AC_CHECK_SIZEOF(unsigned long long)
1830 AC_CHECK_SIZEOF(unsigned long)
1831 AC_CHECK_SIZEOF(unsigned int)
1832 AC_TYPE_INTPTR_T
1833 AC_TYPE_UINTPTR_T
1834 AC_TYPE_SSIZE_T
1835 AC_CHECK_TYPE([sig_atomic_t],[],
1836     [AC_DEFINE([sig_atomic_t], [int],
1837         [Define to int if <signal.h> does not define.])],
1838 [#include <sys/types.h>
1839 #include <signal.h>])
1840 AC_CHECK_TYPE([socklen_t],[],
1841     [AC_DEFINE([socklen_t], [int],
1842         [Define to int if <sys/socket.h> does not define.])],
1843 [#include <sys/types.h>
1844 #include <sys/socket.h>])
1845 AC_CHECK_TYPES(off64_t)
1846 AC_CHECK_TYPES([ssize_t], [], [], [#include <unistd.h>])
1847 AC_CHECK_TYPES([struct winsize], [], [], [
1848 #ifdef HAVE_TERMIOS_H
1849 # include <termios.h>
1850 #else
1851 # include <sys/termios.h>
1852 #endif
1853 #include <sys/ioctl.h>])
1854 AC_CHECK_TYPES([sa_family_t, socklen_t, struct sockaddr,
1855                 struct sockaddr_storage],
1856                [], [], [
1857 #include <sys/types.h>
1858 #include <sys/socket.h>
1859 ])
1860 AC_CHECK_TYPES([sa_family_t], [], [], [
1861 #include <sys/types.h>
1862 #include <sys/socket.h>
1863 ])
1864 AC_CHECK_TYPES([struct addrinfo], [], [], [
1865 #include <sys/types.h>
1866 #ifdef HAVE_NETDB_H
1867 #include <netdb.h>
1868 #endif
1869 ])
1870 AC_CHECK_TYPES([long long], [], [], [])
1871
1872 AC_SIZEOF_TYPE(long)
1873
1874 CFLAGS="$openafs_cv_saved_CFLAGS"
1875
1876 RRA_HEADER_PAM_CONST
1877
1878
1879 dnl Directory PATH handling
1880 if test "x$enable_transarc_paths" = "xyes"  ; then 
1881     afsconfdir=${afsconfdir=/usr/afs/etc}
1882     viceetcdir=${viceetcdir=/usr/vice/etc}
1883     afskerneldir=${afskerneldir=${viceetcdir}}
1884     afssrvbindir=${afssrvbindir=/usr/afs/bin}
1885     afssrvsbindir=${afssrvsbindir=/usr/afs/bin}
1886     afssrvlibexecdir=${afssrvlibexecdir=/usr/afs/bin}
1887     afsdbdir=${afsdbdir=/usr/afs/db}
1888     afslogsdir=${afslogsdir=/usr/afs/logs}
1889     afslocaldir=${afslocaldir=/usr/afs/local}
1890     afsbackupdir=${afsbackupdir=/usr/afs/backup}
1891     afsbosconfigdir=${afsbosconfigdir=/usr/afs/local}
1892     afsdatadir=${afsdatadir=/usr/vice/etc}
1893 else 
1894     afsconfdir=${afsconfdir='${sysconfdir}/openafs/server'}
1895     viceetcdir=${viceetcdir='${sysconfdir}/openafs'}
1896     afskerneldir=${afskerneldir='${libdir}/openafs'}
1897     afssrvbindir=${afssrvbindir='${bindir}'}
1898     afssrvsbindir=${afssrvsbindir='${sbindir}'}
1899     afssrvlibexecdir=${afssrvlibexecdir='${libexecdir}/openafs'}
1900     afsdbdir=${afsdbdir='${localstatedir}/openafs/db'}
1901     afslogsdir=${afslogsdir='${localstatedir}/openafs/logs'}
1902     afslocaldir=${afslocaldir='${localstatedir}/openafs'}
1903     afsbackupdir=${afsbackupdir='${localstatedir}/openafs/backup'}
1904     afsbosconfigdir=${afsbosconfigdir='${sysconfdir}/openafs'}
1905     afsdatadir=${afsdatadir='${datadir}/openafs'}
1906 fi
1907 AC_SUBST(afsconfdir)
1908 AC_SUBST(viceetcdir)
1909 AC_SUBST(afskerneldir)
1910 AC_SUBST(afssrvbindir)
1911 AC_SUBST(afssrvsbindir)
1912 AC_SUBST(afssrvlibexecdir)
1913 AC_SUBST(afsdbdir)
1914 AC_SUBST(afslogsdir)
1915 AC_SUBST(afslocaldir)
1916 AC_SUBST(afsbackupdir)
1917 AC_SUBST(afsbosconfigdir)
1918 AC_SUBST(afsdatadir)
1919
1920 if test "x$enable_kernel_module" = "xyes"; then
1921 ENABLE_KERNEL_MODULE=libafs
1922 fi
1923
1924 if test "x$enable_pthreaded_ubik" = "xyes"; then
1925 ENABLE_PTHREADED_UBIK=yes
1926 fi
1927
1928 AC_SUBST(VFSCK)
1929 AC_SUBST(AFS_SYSNAME)
1930 AC_SUBST(AFS_PARAM_COMMON)
1931 AC_SUBST(ENABLE_KERNEL_MODULE)
1932 AC_SUBST(ENABLE_PTHREADED_UBIK)
1933 AC_SUBST(LIB_AFSDB)
1934 AC_SUBST(LINUX_KERNEL_PATH)
1935 AC_SUBST(LINUX_KERNEL_BUILD)
1936 AC_SUBST(HOST_CPU)
1937 AC_SUBST(BSD_KERNEL_PATH)
1938 AC_SUBST(BSD_KERNEL_BUILD)
1939 AC_SUBST(LINUX_VERSION)
1940 AC_SUBST(MKAFS_OSTYPE)
1941 AC_SUBST(TOP_OBJDIR)
1942 AC_SUBST(TOP_SRCDIR)
1943 AC_SUBST(TOP_INCDIR)
1944 AC_SUBST(TOP_LIBDIR)
1945 AC_SUBST(DEST)
1946 AC_SUBST(DARWIN_INFOFILE)
1947 AC_SUBST(IRIX_BUILD_IP35)
1948 AC_SUBST(HTML_XSL)
1949 AC_SUBST(XSLTPROC)
1950 AC_SUBST(DOCBOOK2PDF)
1951 AC_SUBST(DOCBOOK_STYLESHEETS)
1952
1953 OPENAFS_FUSE
1954 OPENAFS_SWIG
1955
1956 TOP_SRCDIR="${srcdir}/src"
1957 dnl
1958 dnl If we're using ./configure, need a more reasonable TOP_SRCDIR, since relative links don't work everywhere
1959 dnl
1960 case $TOP_SRCDIR in
1961         /*)
1962                 ;;
1963         *)
1964                 TOP_SRCDIR=`cd $TOP_SRCDIR; pwd`
1965                 ;;
1966 esac
1967
1968 TOP_OBJDIR="${SRCDIR_PARENT}"
1969 TOP_INCDIR="${SRCDIR_PARENT}/include"
1970 TOP_LIBDIR="${SRCDIR_PARENT}/lib"
1971 if test "${DEST}x" = "x"; then
1972         DEST="${SRCDIR_PARENT}/${AFS_SYSNAME}/dest"
1973 fi
1974
1975 if test "x$with_crosstools_dir" != "x"; then
1976         if test -f "$with_crosstools_dir/rxgen" -a -f "$with_crosstools_dir/compile_et" -a -f "$with_crosstools_dir/config"; then
1977                 COMPILE_ET_PATH=$with_crosstools_dir/compile_et
1978                 CONFIGTOOL_PATH=$with_crosstools_dir/config
1979                 RXGEN_PATH=$with_crosstools_dir/rxgen
1980         else
1981                 AC_MSG_ERROR(Tools not found in $with_crosstools_dir)
1982                 exit 1
1983         fi
1984 else
1985         COMPILE_ET_PATH="${SRCDIR_PARENT}/src/comerr/compile_et"
1986         CONFIGTOOL_PATH="${SRCDIR_PARENT}/src/config/config"
1987         RXGEN_PATH="${SRCDIR_PARENT}/src/rxgen/rxgen"
1988 fi
1989 AC_SUBST(COMPILE_ET_PATH)
1990 AC_SUBST(CONFIGTOOL_PATH)
1991 AC_SUBST(RXGEN_PATH)
1992
1993 HELPER_SPLINT="${TOP_SRCDIR}/helper-splint.sh"
1994 HELPER_SPLINTCFG="${TOP_SRCDIR}/splint.cfg"
1995 AC_SUBST(HELPER_SPLINT)
1996 AC_SUBST(HELPER_SPLINTCFG)
1997
1998 mkdir -p ${TOP_OBJDIR}/src/JAVA/libjafs
1999
2000 dnl Check to see if crypt lives in a different library
2001 AC_CHECK_LIB(crypt, crypt, LIB_crypt="-lcrypt")
2002 AC_SUBST(LIB_crypt)
2003
2004 dnl Check to see if the compiler support labels in structs
2005 AC_MSG_CHECKING(for label support in structs)
2006 AC_TRY_COMPILE([], [
2007 extern void osi_UFSOpen(void);
2008 struct labeltest {
2009    void (*open) (void);
2010 };
2011 struct labeltest struct_labeltest = {
2012    .open       = osi_UFSOpen,
2013 }
2014 ],
2015 [AC_MSG_RESULT(yes)
2016  AC_DEFINE(HAVE_STRUCT_LABEL_SUPPORT, 1, [Define to 1 if your compiler supports labels in structs.])
2017 ],
2018 [AC_MSG_RESULT(no)
2019 ])
2020
2021 AC_MSG_CHECKING([checking for dirfd])
2022 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
2023 #ifdef HAVE_DIRENT_H
2024 #include <dirent.h>
2025 #endif
2026 ]],
2027         [[DIR *d = 0; dirfd(d);]])],
2028         [ac_rk_have_dirfd=yes], [ac_rk_have_dirfd=no])
2029 if test "$ac_rk_have_dirfd" = "yes" ; then
2030         AC_DEFINE_UNQUOTED(HAVE_DIRFD, 1, [have a dirfd function/macro])
2031 fi
2032 AC_MSG_RESULT($ac_rk_have_dirfd)
2033
2034 OPENAFS_HAVE_STRUCT_FIELD(DIR, dd_fd, [#include <sys/types.h>
2035 #ifdef HAVE_DIRENT_H
2036 #include <dirent.h>
2037 #endif])
2038
2039 OPENAFS_HAVE_STRUCT_FIELD(struct rusage, ru_idrss,
2040 [#ifdef HAVE_SYS_RESOURCE_H
2041 #include <sys/resource.h>
2042 #endif])
2043
2044 dnl Check for UUID library
2045 AC_CHECK_HEADERS([uuid/uuid.h])
2046 AC_CHECK_LIB(uuid, uuid_generate, LIBS_uuid="-luuid")
2047 AC_CHECK_FUNCS([uuid_generate])
2048 ])
2049
2050