diplodocus.org Git - nmh/blob - configure.in

   1 dnl
   2 dnl configure.in -- autoconf template for nmh
   3 dnl
   4 dnl $Id$
   5 dnl
   6
   7 dnl 2.13 definitely chokes; 2.53 is the earliest version I've tested.
   8 dnl 2.58 needed for help string macro but that only affects help output
   9 dnl 2.50 is the major breakpoint between the old autoconf and the new,
  10 dnl so require that. If there are bug reports about 2.50-2.52 not working
  11 dnl we can always move this up a little.
  12 AC_PREREQ(2.50)
  13
  14 AC_INIT(nmh, m4_normalize(m4_include([VERSION])))
  15 AC_CONFIG_SRCDIR(h/nmh.h)
  16 AC_CONFIG_HEADER(config.h)
  17
  18 AC_CANONICAL_TARGET
  19
  20 dnl ---------------------
  21 dnl define a macro or two
  22 dnl ---------------------
  23
  24 AC_DEFUN(NMH_PROG_GNU_LIBTOOL, [
  25 if test -n "$LIBTOOL" ; then
  26   tmptest=`$LIBTOOL --version 2>&1 | grep GNU`
  27   if test x"$tmptest" != x  ; then
  28     GNU_LIBTOOL=1
  29     AC_SUBST(GNU_LIBTOOL)dnl
  30   fi
  31 fi
  32 ] )
  33
  34 echo "configuring for AC_PACKAGE_NAME-AC_PACKAGE_VERSION"
  35 AC_SUBST(VERSION,AC_PACKAGE_VERSION)dnl
  36
  37 dnl What date of nmh are we building?
  38 DATE=`cat ${srcdir}/DATE`
  39 echo "configuring for nmh dated $DATE"
  40 AC_SUBST(DATE)dnl
  41
  42 dnl --------------------------
  43 dnl CHECK COMMAND LINE OPTIONS
  44 dnl --------------------------
  45
  46 dnl Do you want client-side support for apop?
  47 AC_ARG_ENABLE(apop, AS_HELP_STRING([--enable-apop],
  48   [enable client-side support for POP3 and APOP]))
  49 if test x"$enable_apop" = x"yes"; then
  50   AC_DEFINE(APOP, 1,
  51     [Define to compile client-side support for apop into inc and msgchk.])dnl
  52   APOPLIB=md5.o
  53   enable_pop=yes
  54 fi
  55 AC_SUBST(APOPLIB)dnl
  56
  57 dnl Do you want to debug nmh?
  58 AC_ARG_ENABLE(debug,
  59   AS_HELP_STRING([--enable-debug],[enable nmh code debugging]))
  60 dnl The old redundant --enable-nmh-debug is deprecated and undocumented.
  61 if test x"$enable_nmh_debug" = x"yes"; then
  62   enable_debug=yes
  63 fi
  64
  65 dnl Allow users to send email from addresses other than their default?
  66 AC_ARG_ENABLE(masquerade,
  67   AS_HELP_STRING([--enable-masquerade='draft_from mmailid username_extension'],
  68     [enable up to 3 types of address masquerading]),
  69   [if test x"$enable_masquerade" = x"yes"; then
  70     masquerade="draft_from mmailid username_extension"
  71   else
  72     masquerade="$enable_masquerade"
  73   fi],
  74   masquerade="draft_from mmailid username_extension")
  75 AC_SUBST(masquerade)dnl
  76
  77 dnl Do you want mhe support?
  78 AC_ARG_ENABLE(mhe,
  79   AS_HELP_STRING([--disable-mhe],[disable mhe support]))
  80
  81 dnl mhe support is on by default, so define it unless --disable-mhe or the
  82 dnl deprecated, undocumented --disable-nmh-mhe are specified.
  83 if test x"$enable_mhe" != x"no" -a x"$enable_nmh_mhe" != x"no"; then
  84   AC_DEFINE(MHE, 1,
  85     [Define to compile in support for the Emacs front-end mh-e.])dnl
  86 fi
  87
  88 dnl Do you want client-side support for pop?
  89 AC_ARG_ENABLE(pop,
  90   AS_HELP_STRING([--enable-pop], [enable client-side support for plain POP3]))
  91 dnl The old redundant --enable-nmh-pop is deprecated and undocumented.
  92 if test x"$enable_nmh_pop" = x"yes"; then
  93   enable_pop=yes
  94 fi
  95
  96 dnl Do you want to disable use of locale functions
  97 AH_TEMPLATE([LOCALE],
  98 [Undefine if you don't want locale features.  By default this is defined.])
  99 AC_ARG_ENABLE([locale],
 100 AC_HELP_STRING([--disable-locale], [turn off locale features]),
 101 [if test x$enableval = xyes; then
 102   AC_DEFINE(LOCALE)
 103 fi],
 104 AC_DEFINE(LOCALE)
 105 )
 106
 107 dnl Do you want client-side support for using SASL for authentication?
 108 dnl Note that this code will be enabled for both POP and SMTP
 109 AC_ARG_WITH(cyrus-sasl, AS_HELP_STRING([--with-cyrus-sasl=DIR],
 110   [specify location of Cyrus SASL library]))
 111 if test x"$with_cyrus_sasl" != x -a x"$with_cyrus_sasl" != x"no"; then
 112   AC_DEFINE(CYRUS_SASL, 1,
 113     [Define to use the Cyrus SASL library for authentication of POP and SMTP.])dnl
 114   sasl_support=yes
 115 else
 116   sasl_support=no
 117 fi
 118
 119 dnl What should be the default editor?
 120 AC_ARG_WITH(editor,
 121   AS_HELP_STRING([--with-editor=EDITOR],[specify the default editor]))
 122
 123 if test -n "$with_editor"; then
 124   editorpath="$with_editor"
 125 fi
 126
 127 dnl Set the backup prefix
 128 AC_ARG_WITH([hash-backup],
 129   AS_HELP_STRING([--with-hash-backup],[use # as the backup prefix (default: ,)]))
 130 if test x"$with_hash_backup" != x -a x"$with_hash_backup" != x"no"; then
 131   backup_prefix="#"
 132 else
 133   backup_prefix=","
 134 fi
 135 AC_DEFINE_UNQUOTED(BACKUP_PREFIX, "$backup_prefix",
 136     [The prefix that is prepended to the name of message files when they are "removed" by rmm. This should typically be `,' or `#'.])dnl
 137
 138 dnl Do you want support for hesiod
 139 AC_ARG_WITH(hesiod,
 140   AS_HELP_STRING([--with-hesiod=DIR],[specify location of Hesiod]))
 141 if test x"$with_hesiod" != x -a x"$with_hesiod" != x"no"; then
 142   AC_DEFINE(HESIOD,1,[Define this to compile support for using Hesiod.])dnl
 143 fi
 144
 145 dnl Do you want client-side support for kpop
 146 AC_ARG_WITH(krb4, AS_HELP_STRING([--with-krb4=DIR],
 147   [specify location of Kerberos V4 for KPOP support]))
 148 if test x"$with_krb4" != x -a x"$with_krb4" != x"no"; then
 149   enable_pop=yes
 150   AC_DEFINE(KPOP, 1,
 151     [Define to compile client-side support for kpop (kerberized pop) into inc and msgchk.])dnl
 152   AC_DEFINE(KPOP_PRINCIPAL, "pop", [Define this to "pop" when using Kerberos V4])dnl
 153 fi
 154
 155 dnl After we know if we're including apop and kpop support, do pop stuff
 156 if test x"$enable_pop" = x"yes"; then
 157   AC_DEFINE(POP, 1,
 158     [Define this to compile client-side support for pop into inc and msgchk.])dnl
 159   POPLIB=popsbr.o
 160   POPSED='/^%nmhbeginpop%/d;/^%nmhendpop%/d'
 161 else
 162   POPSED='/^%nmhbeginpop%/,/^%nmhendpop%/d'
 163 fi
 164 AC_SUBST(POPLIB)dnl
 165 AC_SUBST(POPSED)dnl
 166
 167 dnl What method of locking to use?
 168 AC_ARG_WITH(locking,
 169   AS_HELP_STRING([--with-locking=@<:@dot|fcntl|flock|lockf@:>@],
 170   [specify the file locking method]))
 171
 172 if test x"$with_locking" = x"dot"; then
 173   LOCKTYPE="dot"
 174   AC_DEFINE(DOT_LOCKING, 1, [Define to use dot based file locking.])dnl
 175 elif test x"$with_locking" = x"flock"; then
 176   LOCKTYPE="flock"
 177   AC_DEFINE(FLOCK_LOCKING, 1, [Define to use flock() based locking.])dnl
 178 elif test x"$with_locking" = x"lockf"; then
 179   LOCKTYPE="lockf"
 180   AC_DEFINE(LOCKF_LOCKING, 1, [Define to use lockf() based locking.])dnl
 181 elif test x"$with_locking" = x"fcntl"; then
 182   LOCKTYPE="fcntl"
 183   AC_DEFINE(FCNTL_LOCKING, 1, [Define to use fnctl() based locking.])dnl
 184 else
 185   LOCKTYPE="dot"
 186   AC_DEFINE(DOT_LOCKING)dnl
 187 fi
 188
 189 dnl What method of posting should post use?
 190 AC_ARG_WITH(mts,
 191   AS_HELP_STRING([--with-mts=@<:@smtp|sendmail@:>@],
 192   [specify the default mail transport agent/service]))
 193
 194 if test x"$with_mts" = x"smtp"; then
 195   MTS="smtp"
 196 elif test x"$with_mts" = x"sendmail"; then
 197   MTS="sendmail"
 198 else
 199   MTS="smtp"
 200 fi
 201 AC_SUBST(MTS)dnl
 202
 203 dnl Both the smtp and sendmail mail transport services use the smtp code
 204 AC_DEFINE(SMTPMTS, 1,
 205   [Define if you want SMTP (simple mail transport protocol) support.])dnl
 206
 207 dnl What should be the default pager?
 208 AC_ARG_WITH(pager,
 209   AS_HELP_STRING([--with-pager=PAGER],[specify the default pager]))
 210
 211 if test -n "$with_pager"; then
 212   pagerpath="$with_pager"
 213 fi
 214
 215 dnl What should be the default mail server(s)?
 216 AC_ARG_WITH(smtpservers,
 217   AS_HELP_STRING([--with-smtpservers='SMTPSERVER1@<:@ SMTPSERVER2...@:>@'],
 218   [specify the default SMTP server(s) @<:@localhost@:>@]))
 219 if test -n "$with_smtpservers"; then
 220   smtpservers="$with_smtpservers"
 221 else
 222   smtpservers="localhost"
 223 fi
 224 AC_SUBST(smtpservers)dnl
 225
 226 dnl ----------------------------------------------------
 227 dnl Default location is /usr/local/nmh/{bin,etc,lib,man}
 228 dnl ----------------------------------------------------
 229 AC_PREFIX_DEFAULT(/usr/local/nmh)
 230
 231 dnl ------------------
 232 dnl CHECK THE COMPILER
 233 dnl ------------------
 234 dnl We want these before the checks,
 235 dnl so the checks can modify their values.
 236 test -z "$CFLAGS" && CFLAGS= auto_cflags=1
 237 if test x"$enable_debug" = x"yes"; then
 238   test -z "$LDFLAGS" && LDFLAGS=-g
 239 fi
 240
 241 AC_PROG_CC
 242
 243 AC_CACHE_CHECK(whether compiler supports -Wno-pointer-sign, nmh_cv_has_noptrsign,
 244 [nmh_saved_cflags="$CFLAGS"
 245  CFLAGS="$CFLAGS -Wno-pointer-sign"
 246  AC_TRY_COMPILE([],[],nmh_cv_has_noptrsign=yes,nmh_cv_has_noptrsign=no)
 247  CFLAGS="$nmh_saved_cflags"])
 248
 249 dnl if the user hasn't specified CFLAGS, then
 250 dnl   if compiler is gcc, then
 251 dnl     use -O2 and some warning flags
 252 dnl   else use -O
 253 dnl We use -Wall; if the compiler supports it we also use -Wno-pointer-sign,
 254 dnl because gcc 4 now produces a lot of new warnings which are probably mostly
 255 dnl spurious and which in any case we don't want to deal with now.
 256 if test "$nmh_cv_has_noptrsign" = "yes"; then
 257         nmh_gcc_warnflags="-Wall -Wno-pointer-sign"
 258 else
 259         nmh_gcc_warnflags="-Wall"
 260 fi
 261
 262 if test -n "$auto_cflags"; then
 263   if test x"$enable_debug" = x"yes"; then
 264     if test -n "$GCC"; then
 265       test -z "$CFLAGS" && CFLAGS="$nmh_gcc_warnflags -g" || CFLAGS="$CFLAGS $nmh_gcc_warnflags -g"
 266     else
 267       test -z "$CFLAGS" && CFLAGS=-g || CFLAGS="$CFLAGS -g"
 268     fi
 269   else
 270     if test -z "$LDFLAGS"; then
 271       case "$build_os" in
 272         darwin*)
 273           LDFLAGS=
 274           ;;
 275         *)
 276           LDFLAGS=-s
 277           ;;
 278       esac
 279     fi
 280     if test -n "$GCC"; then
 281       test -z "$CFLAGS" && CFLAGS="$nmh_gcc_warnflags -O2" || CFLAGS="$CFLAGS $nmh_gcc_warnflags -O2"
 282     else
 283       test -z "$CFLAGS" && CFLAGS=-O  || CFLAGS="$CFLAGS -O"
 284     fi
 285   fi
 286 fi
 287
 288 AC_C_CONST              dnl Does compiler support `const'.
 289
 290 dnl ------------------
 291 dnl CHECK FOR PROGRAMS
 292 dnl ------------------
 293 AC_PROG_MAKE_SET        dnl Does make define $MAKE
 294 AC_PROG_INSTALL         dnl Check for BSD compatible `install'
 295 AC_PROG_RANLIB          dnl Check for `ranlib'
 296 AC_PROG_AWK             dnl Check for mawk,gawk,nawk, then awk
 297 AC_PROG_LEX             dnl Check for lex/flex
 298
 299 dnl Look for `cut'
 300 pathtmp=/usr/bin:/bin:/usr/local/bin:/usr/xpg4/bin:/usr/ucb
 301 AC_PATH_PROG(cutpath, cut, no, [$pathtmp])
 302
 303 dnl ----------------------------------------------
 304 dnl check for lclint, and lint if it doesn't exist
 305 dnl ----------------------------------------------
 306 AC_CHECK_PROG(linttmp1, lclint, lclint, no)dnl
 307 if test x$ac_cv_prog_linttmp1 != xno ; then
 308   LINT=$ac_cv_prog_linttmp1
 309   LINTFLAGS="-weak +posixlib -macrovarprefixexclude"
 310 else
 311   AC_CHECK_PROG(linttmp2, lint, lint, no)dnl
 312   if test x$ac_cv_prog_linttmp2 != xno ; then
 313     LINT=$ac_cv_prog_linttmp2
 314     LINTFLAGS=""
 315   else
 316     LINT="echo 'No lint program found'"
 317     LINTFLAGS=""
 318   fi
 319 fi
 320 AC_SUBST(LINT)dnl
 321 AC_SUBST(LINTFLAGS)dnl
 322
 323 dnl try to figure out which one we've got
 324 AC_CHECK_PROG(LIBTOOL, libtool, libtool, , [$pathtmp])
 325 NMH_PROG_GNU_LIBTOOL
 326
 327 dnl Check for lorder and tsort commands
 328 AC_CHECK_PROG(LORDER, lorder, lorder, no)dnl
 329 AC_CHECK_PROG(TSORT, tsort, tsort, no)dnl
 330
 331 dnl If either doesn't exist, replace them with echo and cat
 332 if test x$ac_cv_prog_LORDER != xlorder -o x$ac_cv_prog_TSORT != xtsort; then
 333   LORDER=echo
 334   TSORT=cat
 335   AC_SUBST(LORDER)dnl
 336   AC_SUBST(TSORT)dnl
 337 dnl Mac OS X has lorder, but sh is too broken for it to work
 338 dnl elif test -z "`lorder config/config.c 2>&1 | grep config/config.c`" ; then
 339 dnl   LORDER=echo
 340 dnl   TSORT=cat
 341 dnl   AC_SUBST(LORDER)dnl
 342 dnl   AC_SUBST(TSORT)dnl
 343 fi
 344
 345 dnl Check whether tsort can deal with loops
 346 AC_CACHE_CHECK(whether tsort can deal with loops, nmh_cv_tsort_loop,
 347   [if test -z "`echo a b b a | tsort 2>/dev/null | grep a`" ; then
 348     nmh_cv_tsort_loop=no
 349   else
 350     nmh_cv_tsort_loop=yes
 351   fi])
 352 if test x$nmh_cv_tsort_loop = xno ; then
 353   LORDER=echo
 354   TSORT=cat
 355   AC_SUBST(LORDER)dnl
 356   AC_SUBST(TSORT)dnl
 357 fi
 358
 359 dnl Look for `ls'
 360 pathtmp=/usr/bin:/bin:/usr/local/bin:/usr/xpg4/bin:/usr/ucb
 361 AC_PATH_PROG(lspath, ls, no, [$pathtmp])
 362
 363 dnl See how we get ls to display the owner and the group
 364 if test "$lspath" != "no"; then
 365   AC_CACHE_CHECK(how to get ls to show us the group ownership of a file,
 366                  nmh_cv_ls_grpopt,
 367   [if test x"`$lspath -dl / | $AWK '{print $9}'`" = x"/"; then
 368     dnl There were 9 parameters, so unless this is a really bizarre, nonstandard
 369     dnl ls, it would seem -l gave us both the user and group.  On this type of
 370     dnl ls, -g makes _only_ the group be displayed (and not the user).
 371     nmh_cv_ls_grpopt="-l"
 372   else
 373     dnl Looks like -l only gave us the user, so we need -g to get the group too.
 374     nmh_cv_ls_grpopt="-lg"
 375   fi])
 376 fi
 377
 378 dnl Look for `more'
 379 pathtmp=/usr/bin:/bin:/usr/ucb:/usr/local/bin
 380 AC_PATH_PROG(morepath, more, no, [$pathtmp])
 381
 382 dnl If pager is not specified yet,
 383 dnl then use `more' as the default.
 384 if test -z "$pagerpath"; then
 385   pagerpath="$morepath"
 386 fi
 387 AC_SUBST(pagerpath)dnl
 388
 389 dnl Look for `sendmail'
 390 pathtmp=/usr/lib:/usr/sbin:/usr/etc:/usr/ucblib:/usr/bin:/bin
 391 AC_PATH_PROG(sendmailpath, sendmail, /usr/sbin/sendmail, [$pathtmp])
 392
 393 dnl Look for `vi'
 394 pathtmp=/usr/bin:/bin:/usr/ucb:/usr/local/bin
 395 AC_PATH_PROG(vipath, vi, /bin/vi, [$pathtmp])
 396
 397 dnl If editor is not specified yet,
 398 dnl then use `vi' as the default.
 399 if test -z "$editorpath"; then
 400   editorpath="$vipath"
 401 fi
 402 AC_SUBST(editorpath)dnl
 403
 404 dnl ----------------------------------------------------------
 405 dnl FIND MAIL SPOOL AND SEE IF WE NEED TO MAKE inc SETGID MAIL
 406 dnl ----------------------------------------------------------
 407 AC_CACHE_CHECK(where mail spool is located, nmh_cv_mailspool,
 408 [for mailspool in /var/mail        dnl
 409                   /var/spool/mail  dnl
 410                   /usr/spool/mail  dnl
 411                   /dev/null;       dnl Just in case we fall through
 412 do
 413   test -d $mailspool && break
 414 done
 415 nmh_cv_mailspool=$mailspool
 416 ])
 417 mailspool=$nmh_cv_mailspool
 418 AC_SUBST(mailspool)dnl
 419
 420 dnl See whether the mail spool directory is world-writable.
 421 if test "$lspath" != "no" -a "$cutpath" != "no"; then
 422   AC_CACHE_CHECK(whether the mail spool is world-writable,
 423                  nmh_cv_mailspool_world_writable,
 424   [if test "`$lspath -dlL $mailspool | $cutpath -c9`" = "-"; then
 425     nmh_cv_mailspool_world_writable=no
 426   else
 427     nmh_cv_mailspool_world_writable=yes
 428   fi])
 429 fi
 430
 431 dnl Also, check for liblockfile (as found on Debian systems)
 432 AC_CHECK_HEADER(lockfile.h, AC_CHECK_LIB(lockfile, lockfile_create) )
 433
 434 dnl and whether its companion program dotlockfile is setgid
 435 AC_PATH_PROG(dotlockfilepath, dotlockfile, no)
 436 if test "$ac_cv_lib_lockfile_lockfile_create" != "no" ; then
 437   if test "$ac_cv_path_dotlockfilepath" != "no" ; then
 438     AC_CACHE_CHECK(whether dotlockfile is setgid, nmh_cv_dotlockfile_setgid,
 439     [ if test -g "$ac_cv_path_dotlockfilepath" ; then
 440         nmh_cv_dotlockfile_setgid=yes
 441       else
 442         nmh_cv_dotlockfile_setgid=no
 443       fi])
 444   fi
 445 fi
 446
 447 dnl If mailspool is not world-writable and dotlockfile is not setgid,
 448 dnl we need to #define MAILGROUP to 1 and make inc setgid.
 449 if test x"$LOCKTYPE" = x"dot" -a x"$nmh_cv_mailspool_world_writable" = x"no" -a x"$nmh_cv_dotlockfile_setgid" != x"yes" ; then
 450   dnl do we really need both of these?
 451   AC_DEFINE(MAILGROUP,1,
 452     [Define to 1 if you need to make `inc' set-group-id because your mail spool is not world writable. There are no guarantees as to the safety of doing this, but this #define will add some extra security checks.])dnl
 453   SETGID_MAIL=1
 454 fi
 455 AC_SUBST(SETGID_MAIL)dnl
 456
 457 dnl Use ls to see which group owns the mail spool directory.
 458 AC_CACHE_CHECK(what group owns the mail spool, nmh_cv_ls_mail_grp,
 459 [nmh_cv_ls_mail_grp=`$lspath -dL $nmh_cv_ls_grpopt $mailspool|$AWK '{print $4}'`
 460 ])
 461 MAIL_SPOOL_GRP=$nmh_cv_ls_mail_grp
 462 AC_SUBST(MAIL_SPOOL_GRP)dnl
 463
 464 dnl ------------------
 465 dnl CHECK HEADER FILES
 466 dnl ------------------
 467
 468 dnl On glibc we need to define at least the '_XOPEN_SOURCE' level of features,
 469 dnl or wchar.h doesn't declare a prototype for wcwidth(). But if we only define
 470 dnl that level then db.h won't compile. So we define _GNU_SOURCE which turns
 471 dnl on everything. Perhaps other OSes need some feature switch set to get wcwidth()
 472 dnl declared; if so they should have an entry added to this case statement.
 473 dnl NB that we must define this on the compiler command line, not in config.h,
 474 dnl because it must be set before any system header is included and there's no
 475 dnl portable way to make sure that files generated by lex include config.h
 476 dnl before system header files.
 477
 478 case "$target_os" in
 479   linux*)
 480     # Like DEFS, but doesn't get stomped on by configure when using config.h:
 481     OURDEFS="$OURDEFS -D_GNU_SOURCE"
 482     ;;
 483 esac
 484 AC_SUBST(OURDEFS)
 485
 486 AC_HEADER_DIRENT
 487 AC_HEADER_STDC
 488 AC_HEADER_TIME
 489 AC_HEADER_SYS_WAIT
 490 AC_HEADER_STAT
 491 AC_HEADER_TIOCGWINSZ
 492 AC_CHECK_HEADERS(string.h memory.h stdlib.h unistd.h errno.h fcntl.h \
 493                  limits.h crypt.h termcap.h termio.h termios.h locale.h \
 494                  langinfo.h wchar.h wctype.h iconv.h netdb.h \
 495                  sys/param.h sys/time.h sys/utsname.h sys/stream.h \
 496                  arpa/inet.h arpa/ftp.h)
 497
 498 dnl
 499 dnl Checks for _IO_write_ptr. A Linuxism used by nmh on linux. We
 500 dnl really use a whole set of them, but this check should be
 501 dnl sufficient.
 502 dnl
 503 AC_CHECK_HEADER(libio.h, [
 504   AC_EGREP_HEADER(_IO_write_ptr, libio.h, [
 505     AC_DEFINE(LINUX_STDIO,1,[Use the Linux _IO_*_ptr defines from <libio.h>.]) ]) ])
 506
 507 AC_CHECK_HEADER([sys/ptem.h], AC_DEFINE(WINSIZE_IN_PTEM,1,
 508   [Define to 1 if `struct winsize' requires <sys/ptem.h>.]),,
 509 [[#if HAVE_SYS_STREAM_H
 510 #  include <sys/stream.h>
 511 #endif
 512 ]])
 513
 514 dnl ---------------
 515 dnl CHECK FUNCTIONS
 516 dnl ---------------
 517 AC_FUNC_VFORK
 518 AC_CHECK_LIB(mkstemp,mkstemp)
 519 AC_CHECK_FUNCS(waitpid wait3 sigaction sigprocmask sigblock sigsetmask \
 520                sighold sigrelse writev lstat uname tzset killpg mkstemp \
 521                getutent nl_langinfo mbtowc wcwidth)
 522
 523 dnl solaris has these in the nsl library
 524 AC_SEARCH_LIBS(getaddrinfo, nsl,
 525   [AC_DEFINE(HAVE_GETADDRINFO,1,
 526     [Define to 1 if you have the `getaddrinfo' function.])])
 527
 528 dnl sigsetjmp may be a macro
 529 AC_MSG_CHECKING(for sigsetjmp)
 530 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <setjmp.h>]],
 531   [[sigsetjmp((void *)0, 0);]])],[AC_DEFINE(HAVE_SIGSETJMP, 1,
 532     [Define to 1 if you have the `sigsetjmp'.]) AC_MSG_RESULT(yes)],
 533   [AC_MSG_RESULT(no)])
 534
 535 AC_REPLACE_FUNCS(memmove snprintf strerror strdup)
 536
 537 dnl Look for the initgroups() declaration.  On AIX 4.[13], Solaris 4.1.3, and
 538 dnl ULTRIX 4.2A the function is defined in libc but there's no declaration in
 539 dnl any system header.
 540 dnl
 541 dnl On Solaris 2.[456], the declaration is in <grp.h>.  On HP-UX 9-11 and
 542 dnl (reportedly) FreeBSD 3.[23], it's in <unistd.h>.  Any other locations we
 543 dnl need to check?
 544 AH_TEMPLATE(INITGROUPS_HEADER, [Define to the header containing the declaration of `initgroups'.])
 545 AC_EGREP_HEADER(initgroups, grp.h, AC_DEFINE(INITGROUPS_HEADER, <grp.h>),
 546                 AC_EGREP_HEADER(initgroups, unistd.h,
 547                                 AC_DEFINE(INITGROUPS_HEADER, <unistd.h>)))
 548
 549 dnl On AIX 4.1, snprintf() is defined in libc.a but there's no prototype in
 550 dnl <stdio.h> or elsewhere.  Apparently it's not officially supported (though it
 551 dnl seems to work perfectly and IBM apparently uses it in internal code).
 552 dnl Anyhow, if we omit our own snprintf() and vsnprintf() prototypes when we
 553 dnl HAVE_SNPRINTF, we get a billion warnings at compile time.  Use the C
 554 dnl preprocessor to preprocess stdio.h and make sure that there's actually a
 555 dnl prototype.
 556 AC_EGREP_HEADER(snprintf, stdio.h, AC_DEFINE(HAVE_SNPRINTF_PROTOTYPE,1,
 557   [Define to 1 if <stdio.h> has a prototype for snprintf().]))
 558
 559 dnl Check for multibyte character set support
 560 if test "x$ac_cv_header_wchar_h" = "xyes" -a "x$ac_cv_header_wctype_h" = "xyes" \
 561     -a "x$ac_cv_func_wcwidth" = "xyes" -a "x$ac_cv_func_mbtowc" = "xyes"; then
 562   AC_DEFINE(MULTIBYTE_SUPPORT, 1,
 563     [Define to enable support for multibyte character sets.])
 564 fi
 565
 566 dnl -------------------
 567 dnl CHECK FOR LIBRARIES
 568 dnl -------------------
 569 dnl Check location of modf
 570 AC_CHECK_FUNC(modf, , AC_CHECK_LIB(m, modf))
 571
 572 dnl Checks for network libraries (nsl, socket)
 573 AC_CHECK_NETLIBS
 574
 575 termcap_curses_order="termcap curses ncurses"
 576 for lib in $termcap_curses_order; do
 577   AC_CHECK_LIB(${lib}, tgetent, [TERMLIB="-l$lib"; break])
 578 done
 579 AC_SUBST(TERMLIB)dnl
 580
 581 dnl ---------------
 582 dnl CHECK FOR ICONV
 583 dnl ---------------
 584
 585 dnl Find iconv. It may be in libiconv and may be iconv() or libiconv()
 586 if test "x$ac_cv_header_iconv_h" = "xyes"; then
 587   AC_CHECK_FUNC(iconv, ac_found_iconv=yes, ac_found_iconv=no)
 588   if test "x$ac_found_iconv" = "xno"; then
 589     AC_CHECK_LIB(iconv, iconv, ac_found_iconv=yes)
 590     if test "x$ac_found_iconv" = "xno"; then
 591       AC_CHECK_LIB(iconv, libiconv, ac_found_iconv=yes)
 592     fi
 593     if test "x$ac_found_iconv" != "xno"; then
 594       LIBS="-liconv $LIBS"
 595     fi
 596   else
 597     dnl Handle case where there is a native iconv but iconv.h is from libiconv
 598     AC_CHECK_DECL(_libiconv_version,
 599       [ AC_CHECK_LIB(iconv, libiconv, LIBS="-liconv $LIBS") ],,
 600       [ #include <iconv.h> ])
 601   fi
 602 fi
 603 if test "x$ac_found_iconv" = xyes; then
 604   AC_DEFINE(HAVE_ICONV, 1, [Define if you have the iconv() function.])
 605 fi
 606
 607 dnl Check if iconv uses const in prototype declaration
 608 if test "x$ac_found_iconv" = "xyes"; then
 609   AC_CACHE_CHECK(for iconv declaration, ac_cv_iconv_const,
 610     [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <stdlib.h>
 611         #include <iconv.h>]],
 612         [[#ifdef __cplusplus
 613           "C"
 614           #endif
 615           #if defined(__STDC__) || defined(__cplusplus)
 616           size_t iconv (iconv_t cd, char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);
 617           #else
 618           size_t iconv();
 619           #endif]])],
 620       [ac_cv_iconv_const=],
 621       [ac_cv_iconv_const=const])])
 622   AC_DEFINE_UNQUOTED([ICONV_CONST], $ac_cv_iconv_const,
 623     [Define as const if the declaration of iconv() needs const.])
 624 fi
 625
 626 dnl --------------
 627 dnl CHECK FOR NDBM
 628 dnl --------------
 629
 630 AC_ARG_WITH([ndbm],AS_HELP_STRING([--with-ndbm=ARG],[use -lARG to link with ndbm]),
 631             [nmh_ndbm=$withval],[nmh_ndbm=autodetect])
 632 AC_ARG_WITH([ndbmheader],AS_HELP_STRING([--with-ndbmheader=ARG],[#include <ARG> to use ndbm]),
 633             [nmh_ndbmheader=$withval],[nmh_ndbmheader=autodetect])
 634
 635 if test "$nmh_ndbm" = "autodetect"; then
 636   if test "$nmh_ndbmheader" != "autodetect"; then
 637     AC_MSG_ERROR([must specify both --with-ndbm and --with-ndbmheader or neither])
 638   else
 639
 640     dnl There are at least four implementations of ndbm, and
 641     dnl several of those can be in different places at the whim
 642     dnl of the system integrator. A good summary of this mess
 643     dnl can be found at http://www.unixpapa.com/incnote/dbm.html
 644
 645     dnl Classic ndbm with no library required (eg NetBSD): try this
 646     dnl first so we don't accidentally link in a pointless but harmless
 647     dnl library in one of the later ndbm.h+libfoo tests:
 648     NMH_CHECK_NDBM(ndbm.h,,,
 649     dnl Berkeley DBv2 emulating ndbm: header in db.h:
 650       NMH_CHECK_NDBM(db.h,db,,
 651     dnl Berkeley DBv1 emulating ndbm:
 652         NMH_CHECK_NDBM(ndbm.h,db,,
 653           NMH_CHECK_NDBM(ndbm.h,db1,,
 654     dnl Classic ndbm:
 655             NMH_CHECK_NDBM(ndbm.h,ndbm,,
 656     dnl glibc2.1 systems put db1 in a subdir:
 657               NMH_CHECK_NDBM(db1/ndbm.h,db1,,
 658     dnl GNU gdbm emulating ndbm, with header possibly in gdbm/
 659     dnl and possibly needing gbdm_compat library:
 660                 NMH_CHECK_NDBM(gdbm/ndbm.h,gdbm,,
 661                   NMH_CHECK_NDBM(gdbm/ndbm.h,gdbm_compat -lgdbm,,
 662                     NMH_CHECK_NDBM(ndbm.h,gdbm,,
 663                       NMH_CHECK_NDBM(ndbm.h,gdbm_compat -lgdbm))))))))))
 664
 665   fi
 666 else
 667   dnl We don't really need to check that the user-specified values work,
 668   dnl but it is a convenience to the user to bomb out early rather than
 669   dnl after configure and half the compile process.
 670   NMH_CHECK_NDBM([$nmh_ndbmheader],[$nmh_ndbm])
 671 fi
 672
 673 if test "$nmh_ndbm_found" = "no"; then
 674   AC_MSG_ERROR([could not find a working ndbm library/header combination])
 675 else
 676   dnl Now export the lib/header to our makefile/config.h:
 677   if test x"$nmh_ndbmheader" != x; then
 678     AC_DEFINE_UNQUOTED(NDBM_HEADER, <$nmh_ndbmheader>,
 679       [Define to the header containing the ndbm API prototypes.])
 680   fi
 681   if test x"$nmh_ndbm" != x; then
 682     NDBM_LIBS="-l$nmh_ndbm"
 683   else
 684     NDBM_LIBS=
 685   fi
 686   AC_SUBST(NDBM_LIBS)
 687 fi
 688
 689
 690 dnl ----------------
 691 dnl CHECK FOR HESIOD
 692 dnl ----------------
 693 if test x"$with_hesiod" != x -a x"$with_hesiod" != x"no"; then
 694   if test x"$with_hesiod" != x"yes"; then
 695     HESIOD_INCLUDES="-I$with_hesiod/include"
 696     HESIOD_LIBS="-L$with_hesiod/lib"
 697   fi
 698   AC_CHECK_FUNC(res_send,
 699         [AC_CHECK_LIB(hesiod, hes_resolve,
 700                 [HESIOD_LIBS="$HESIOD_LIBS -lhesiod"],
 701                 [AC_MSG_ERROR(Hesiod library not found)],
 702                 $HESIOD_LIBS)],
 703         [AC_CHECK_LIB(hesiod, hes_resolve,
 704                 [HESIOD_LIBS="$HESIOD_LIBS -lhesiod -lresolv"],
 705                 [AC_MSG_ERROR(Hesiod library not found)],
 706                 $HESIOD_LIBS -lresolv)])
 707
 708 fi
 709 AC_SUBST(HESIOD_INCLUDES)dnl
 710 AC_SUBST(HESIOD_LIBS)dnl
 711
 712 dnl ----------------------------------
 713 dnl CHECK FOR KRB4 (Kerberos4 support)
 714 dnl ----------------------------------
 715 if test x"$with_krb4" != x -a x"$with_krb4" != x"no"; then
 716   if test x"$with_krb4" != x"yes"; then
 717     KRB4_INCLUDES="-I$with_krb4/include"
 718     if test -d "$with_krb4/include/kerberosIV"; then
 719       KRB4_INCLUDES="$KRB4_INCLUDES -I$with_krb4/include/kerberosIV"
 720     fi
 721     KRB4_LIBS="-L$with_krb4/lib"
 722   elif test -d /usr/include/kerberosIV; then
 723     KRB4_INCLUDES="-I/usr/include/kerberosIV"
 724   fi
 725 dnl First, check if we have -lk5crypto, since that means we have a recent krb5
 726
 727   AC_CHECK_LIB(k5crypto, krb5_encrypt,
 728         [AC_CHECK_LIB(krb4, krb_rd_req,
 729                 [KRB4_LIBS="$KRB4_LIBS -lkrb4 -ldes425 -lkrb5 -lk5crypto -lcom_err"],
 730                 [AC_MSG_ERROR(Kerberos 4 compatibility libraries not found)],
 731                 $KRB4_LIBS -ldes425 -lkrb5 -lk5crypto -lcom_err)],
 732
 733         [AC_CHECK_LIB(krb4, krb_rd_req,
 734             [KRB4_LIBS="$KRB4_LIBS -lkrb4 -ldes425 -lkrb5 -lcrypto -lcom_err"],
 735             [AC_CHECK_LIB(krb, krb_rd_req,
 736               [KRB4_LIBS="$KRB4_LIBS -lkrb -ldes"],
 737               [AC_MSG_ERROR(Kerberos 4 libraries not found)],
 738               $KRB4_LIBS -ldes)],
 739             $KRB4_LIBS -ldes425 -lkrb5 -lcrypto -lcom_err)],
 740         $KRB4_LIBS)
 741
 742 fi
 743 AC_SUBST(KRB4_INCLUDES)dnl
 744 AC_SUBST(KRB4_LIBS)dnl
 745
 746 dnl --------------------
 747 dnl CHECK FOR CYRUS SASL
 748 dnl --------------------
 749 if test x"$with_cyrus_sasl" != x -a x"$with_cyrus_sasl" != x"no"; then
 750   if test x"$with_cyrus_sasl" != x"yes"; then
 751     SASL_INCLUDES="-I$with_cyrus_sasl/include"
 752     SASL_LIBS="-L$with_cyrus_sasl/lib"
 753
 754     dnl Do OS-specific hardcoding of SASL shared library path into executables,
 755     dnl so user isn't forced to set environment variables like Solaris'
 756     dnl LD_LIBRARY_PATH.
 757     case "$target_os" in
 758       solaris*)
 759         SASL_LIBS="$SASL_LIBS -R$with_cyrus_sasl/lib"
 760         ;;
 761     esac
 762   fi
 763   save_LDFLAGS="$LDFLAGS"
 764   LDFLAGS="$LDFLAGS $SASL_LIBS"
 765   AC_CHECK_LIB(sasl2, sasl_client_new,
 766     [SASL_LIBS="$SASL_LIBS -lsasl2"],
 767     [AC_MSG_ERROR(Cyrus SASL library not found)])
 768   LDFLAGS="$save_LDFLAGS"
 769 fi
 770 AC_SUBST(SASL_INCLUDES)dnl
 771 AC_SUBST(SASL_LIBS)dnl
 772
 773 dnl ---------------------
 774 dnl CHECK TERMCAP LIBRARY
 775 dnl ---------------------
 776
 777 dnl Add the termcap library, so that the following configure
 778 dnl tests will find it when it tries to link test programs.
 779 nmh_save_LIBS="$LIBS"
 780 LIBS="$TERMLIB $LIBS"
 781
 782 dnl Checks for external variable ospeed in the termcap library.
 783 AC_CACHE_CHECK(if an include file defines ospeed,
 784 nmh_cv_decl_ospeed_include_defines,
 785 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
 786 #if HAVE_TERMIOS_H
 787 #include <termios.h>
 788 #endif
 789 #if HAVE_TERMCAP_H
 790 #include <termcap.h>
 791 #endif]], [[ospeed = 0;]])],
 792 nmh_cv_decl_ospeed_include_defines=yes,nmh_cv_decl_ospeed_include_defines=no)])
 793
 794 if test $nmh_cv_decl_ospeed_include_defines = no; then
 795   AC_CACHE_CHECK(if you must define ospeed,
 796   nmh_cv_decl_ospeed_must_define,
 797   [AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
 798   [[extern short ospeed; ospeed = 0;]])],
 799   nmh_cv_decl_ospeed_must_define=yes,nmh_cv_decl_ospeed_must_define=no)])
 800 fi
 801
 802 AH_TEMPLATE(HAVE_OSPEED, [Define to 1 if your termcap library has the ospeed variable.])
 803 if test $nmh_cv_decl_ospeed_include_defines = yes; then
 804   AC_DEFINE(HAVE_OSPEED)dnl
 805 elif test $nmh_cv_decl_ospeed_must_define = yes; then
 806   AC_DEFINE(HAVE_OSPEED)
 807   AC_DEFINE(MUST_DEFINE_OSPEED, 1,
 808     [Define to 1 if you have ospeed, but it is not defined in termcap.h.])
 809 fi
 810
 811 dnl Check if tgetent accepts NULL (and will allocate its own termcap buffer)
 812 dnl Some termcaps reportedly accept a zero buffer, but then dump core
 813 dnl in tgetstr().
 814 dnl Under Cygwin test program crashes but exit code is still 0. So,
 815 dnl we test for a file that porgram should create
 816 AH_TEMPLATE([TGETENT_ACCEPTS_NULL],
 817 [Define to 1 if tgetent() accepts NULL as a buffer.])
 818 AC_CACHE_CHECK(if tgetent accepts NULL,
 819 nmh_cv_func_tgetent_accepts_null,
 820 [AC_TRY_RUN([
 821 main()
 822 {
 823     char buf[4096];
 824     int r1 = tgetent(buf, "vt100");
 825     int r2 = tgetent((char*)0,"vt100");
 826     if (r1 >= 0 && r1 == r2) {
 827         char tbuf[1024], *u;
 828         u = tbuf;
 829         tgetstr("cl", &u);
 830         creat("conftest.tgetent", 0640);
 831     }
 832     exit((r1 != r2) || r2 == -1);
 833 }
 834 ],
 835   if test -f conftest.tgetent; then
 836     nmh_cv_func_tgetent_accepts_null=yes
 837   else
 838     nmh_cv_func_tgetent_accepts_null=no
 839   fi,
 840   nmh_cv_func_tgetent_accepts_null=no,
 841   nmh_cv_func_tgetent_accepts_null=no)])
 842 if test x$nmh_cv_func_tgetent_accepts_null = xyes; then
 843   AC_DEFINE(TGETENT_ACCEPTS_NULL)
 844 fi
 845 AC_CACHE_CHECK(if tgetent returns 0 on success,
 846 nmh_cv_func_tgetent_zero_success,
 847 [AC_TRY_RUN([
 848 main()
 849 {
 850     char buf[4096];
 851     int r1 = tgetent(buf, "!@#$%^&*");
 852     int r2 = tgetent(buf, "vt100");
 853     if (r1 < 0 && r2 == 0) {
 854         char tbuf[1024], *u;
 855         u = tbuf;
 856         tgetstr("cl", &u);
 857         creat("conftest.tgetent0", 0640);
 858     }
 859     exit(r1 == r2);
 860 }
 861 ],
 862   if test -f conftest.tgetent0; then
 863     nmh_cv_func_tgetent_zero_success=yes
 864   else
 865     nmh_cv_func_tgetent_zero_success=no
 866   fi,
 867   nmh_cv_func_tgetent_zero_success=no,
 868   nmh_cv_func_tgetent_zero_success=no)])
 869 AH_TEMPLATE([TGETENT_SUCCESS],
 870 [Define to what tgetent() returns on success (0 on HP-UX X/Open curses).])
 871 if test x$nmh_cv_func_tgetent_zero_success = xyes; then
 872   AC_DEFINE(TGETENT_SUCCESS, 0)
 873 else
 874   AC_DEFINE(TGETENT_SUCCESS, 1)
 875 fi
 876
 877 dnl Now put the libraries back to what it was before we
 878 dnl starting checking the termcap library.
 879 LIBS="$nmh_save_LIBS"
 880
 881 dnl --------------
 882 dnl CHECK TYPEDEFS
 883 dnl --------------
 884 AC_TYPE_SIGNAL
 885 AC_TYPE_PID_T
 886 AC_TYPE_OFF_T
 887 AC_TYPE_UID_T
 888 AC_TYPE_MODE_T
 889 AC_TYPE_SIZE_T
 890
 891 dnl Check for sigset_t.  Currently I'm looking in
 892 dnl <sys/types.h> and <signal.h>.  Others might need
 893 dnl to be added.
 894 AC_CACHE_CHECK(for sigset_t, nmh_cv_type_sigset_t,
 895 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
 896 #include <signal.h>]], [[sigset_t tempsigset;]])],
 897 nmh_cv_type_sigset_t=yes,nmh_cv_type_sigset_t=no)])
 898 if test $nmh_cv_type_sigset_t = no; then
 899   AC_DEFINE(sigset_t, unsigned int,
 900     [Define to `unsigned int' if <sys/types.h> or <signal.h> doesn't define.])
 901 fi
 902
 903 dnl ----------------
 904 dnl CHECK STRUCTURES
 905 dnl ----------------
 906 AC_CHECK_MEMBERS(struct stat.st_blksize)
 907
 908 AC_CHECK_MEMBERS(struct tm.tm_gmtoff,,,
 909   [#ifdef TIME_WITH_SYS_TIME
 910 # include <sys/time.h>
 911 # include <time.h>
 912 #else
 913 # ifdef TM_IN_SYS_TIME
 914 #  include <sys/time.h>
 915 # else
 916 #  include <time.h>
 917 # endif
 918 #endif])
 919
 920 AC_CHECK_MEMBERS(struct utmp.ut_type,,,[#include <utmp.h>])
 921
 922 AC_MSG_CHECKING(for union wait)
 923 AC_CACHE_VAL(nmh_cv_union_wait, [dnl
 924   AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
 925 #include <sys/wait.h>]],
 926     [[union wait status; int pid; pid = wait (&status);
 927 #ifdef WEXITSTATUS
 928 /* Some POSIXoid systems have both the new-style macros and the old
 929    union wait type, and they do not work together.  If union wait
 930    conflicts with WEXITSTATUS et al, we don't want to use it at all.  */
 931         if (WEXITSTATUS (status) != 0) pid = -1;
 932 #ifdef WTERMSIG
 933         /* If we have WEXITSTATUS and WTERMSIG, just use them on ints.  */
 934         -- blow chunks here --
 935 #endif
 936 #endif
 937 #ifdef HAVE_WAITPID
 938         /* Make sure union wait works with waitpid.  */
 939         pid = waitpid (-1, &status, 0);
 940 #endif
 941       ]])],
 942     [nmh_cv_union_wait=yes],
 943     [nmh_cv_union_wait=no])])
 944 if test "$nmh_cv_union_wait" = yes; then
 945   AC_DEFINE(HAVE_UNION_WAIT, 1,
 946     [Define to 1 if you have the \`union wait' type in <sys/wait.h>.])
 947 fi
 948 AC_MSG_RESULT($nmh_cv_union_wait)
 949
 950 CHECK_TYPE_STRUCT_DIRENT_D_TYPE()
 951
 952 dnl -------------
 953 dnl CHECK SIGNALS
 954 dnl -------------
 955 dnl What style of signal do you have (POSIX, BSD, or SYSV)?
 956 AH_TEMPLATE(RELIABLE_SIGNALS, [Define to 1 if you have reliable signals.])
 957 AC_MSG_CHECKING(what style of signals to use)
 958 if test $ac_cv_func_sigaction = yes -a $ac_cv_func_sigprocmask = yes; then
 959   signals_style=POSIX_SIGNALS
 960   AC_DEFINE(POSIX_SIGNALS, 1,
 961     [Define to 1 if you use POSIX style signal handling.])
 962   AC_DEFINE(RELIABLE_SIGNALS)
 963 elif test $ac_cv_func_sigblock = yes -a $ac_cv_func_sigsetmask = yes; then
 964   signals_style=BSD_SIGNALS
 965   AC_DEFINE(BSD_SIGNALS,1,
 966     [Define to 1 if you use BSD style signal handling (and can block signals).])
 967   AC_DEFINE(RELIABLE_SIGNALS)
 968 elif test $ac_cv_func_sighold = yes -a $ac_cv_func_sigrelse = yes; then
 969   signals_style=SYSV_SIGNALS
 970   AC_DEFINE(SYSV_SIGNALS,1,
 971     [Define to 1 if you use SYSV style signal handling (and can block signals).])
 972 else
 973   signals_style=NO_SIGNAL_BLOCKING
 974   AC_DEFINE(NO_SIGNAL_BLOCKING,1,
 975     [Define to 1 if you have no signal blocking at all (bummer).])
 976 fi
 977
 978 AC_MSG_RESULT($signals_style)
 979
 980 dnl Where is <signal.h> located?  Needed as input for signames.awk
 981 AC_CACHE_CHECK(where signal.h is located, nmh_cv_path_signal_h,
 982 [for SIGNAL_H in /usr/include/bsd/sys/signal.h  dnl Next
 983                  /usr/include/asm/signal.h      dnl Linux 1.3.0 and above
 984                  /usr/include/asm/signum.h      dnl some versions of Linux/Alpha
 985                  /usr/include/linux/signal.h    dnl Linux up to 1.2.11
 986                  /usr/include/sys/signal.h      dnl Almost everybody else
 987                  /dev/null;                     dnl Just in case we fall through
 988 do
 989   test -f $SIGNAL_H && \
 990   grep '#[      ]*define[       ][      ]*SIG[0-9A-Z]*[         ]*[0-9][0-9]*' $SIGNAL_H > /dev/null && \
 991   break
 992 done
 993 nmh_cv_path_signal_h=$SIGNAL_H
 994 ])
 995 SIGNAL_H=$nmh_cv_path_signal_h
 996 AC_SUBST(SIGNAL_H)dnl
 997
 998 dnl ----------------
 999 dnl OS SPECIFIC DEFINES
1000 dnl ----------------
1001 AH_TEMPLATE(SYS5, [Defined for Solaris 2.x, Irix, OSF/1, HP-UX, AIX, SCO5; only used in vmh.c which is not built.])
1002 AH_TEMPLATE(SVR4, [Defined for Solaris 2.x, Irix, OSF/1, HP-UX, AIX; only used in vmh.c which is not built.])
1003 AH_TEMPLATE(BSD44, [Defined for SunOS 4, FreeBSD, NetBSD, OpenBSD, BSD/OS, Mac OS X/Rhapsody; only used in vmh.c which is not built.])
1004 AH_TEMPLATE(BSD42, [Defined for SunOS 4, FreeBSD, NetBSD, OpenBSD, BSD/OS, Mac OS X/Rhapsody -- does PicoBSD have uname?])
1005 AH_TEMPLATE(SCO_5_STDIO, [Defined for SCO5.])
1006
1007 case "$target_os" in
1008
1009   solaris2*)
1010     AC_DEFINE(SYS5)
1011     AC_DEFINE(SVR4)
1012     ;;
1013   irix*)
1014     AC_DEFINE(SYS5)
1015     AC_DEFINE(SVR4)
1016     ;;
1017   osf*)
1018     AC_DEFINE(SYS5)
1019     AC_DEFINE(SVR4)
1020     ;;
1021   aix*)
1022     AC_DEFINE(SYS5)
1023     AC_DEFINE(SVR4)
1024     ;;
1025   sunos4*)
1026     AC_DEFINE(BSD42)
1027     ;;
1028   freebsd*)
1029     AC_DEFINE(BSD42)
1030     AC_DEFINE(BSD44)
1031     ;;
1032   netbsd*)
1033     AC_DEFINE(BSD42)
1034     AC_DEFINE(BSD44)
1035     ;;
1036   openbsd*)
1037     AC_DEFINE(BSD42)
1038     AC_DEFINE(BSD44)
1039     ;;
1040   bsd/os*)
1041     AC_DEFINE(BSD42)
1042     AC_DEFINE(BSD44)
1043     ;;
1044   sco5*)
1045     AC_DEFINE(SYS5)
1046     AC_DEFINE(SCO_5_STDIO)
1047     ;;
1048 esac
1049
1050
1051 dnl ----------------
1052 dnl OUTPUT MAKEFILES
1053 dnl ----------------
1054 AC_CONFIG_FILES(Makefile config/Makefile h/Makefile sbr/Makefile uip/Makefile \
1055                 mts/Makefile mts/smtp/Makefile \
1056                 etc/Makefile docs/Makefile man/Makefile)
1057 AC_CONFIG_COMMANDS([stamp],[test -z "$CONFIG_HEADERS" || echo > stamp-h])
1058 AC_OUTPUT
1059
1060 dnl Umm, what's the point of these assignments??  -- <dan-nmh@dilvish.speed.net>
1061 eval "nmhbin=${bindir}";         eval "nmhbin2=${nmhbin}"
1062 eval "nmhsysconf=${sysconfdir}"; eval "nmhsysconf2=${nmhsysconf}"
1063 eval "nmhlib=${libdir}";         eval "nmhlib2=${nmhlib}"
1064 eval "nmhman=${mandir}"
1065
1066 pop_kinds=no
1067 if test x"$enable_pop" = x"yes"; then
1068   pop_kinds="yes ("
1069
1070   if test x"$enable_apop" = x"yes"; then
1071     pop_kinds="${pop_kinds}APOP "
1072   fi
1073
1074   if test x"$with_krb4" != x -a x"$with_krb4" != x"no"; then
1075     pop_kinds="${pop_kinds}KPOP "
1076   fi
1077
1078   pop_kinds="${pop_kinds}POP3)"
1079 fi
1080
1081 echo "
1082 nmh configuration
1083 -----------------
1084 nmh version                : AC_PACKAGE_VERSION
1085 target os                  : ${target}
1086 compiler                   : ${CC}
1087 compiler flags             : ${CFLAGS}
1088 linker flags               : ${LDFLAGS}
1089 definitions                : ${OURDEFS}
1090 source code location       : ${srcdir}
1091 binary install path        : ${nmhbin2}
1092 libary install path        : ${nmhlib2}
1093 config files install path  : ${nmhsysconf2}
1094 man page install path      : ${nmhman}
1095 backup prefix              : ${backup_prefix}
1096 transport system           : ${MTS}
1097 file locking type          : ${LOCKTYPE}
1098 default smtp servers       : ${smtpservers}
1099 default editor             : ${editorpath}
1100 default pager              : ${pagerpath}
1101 email address masquerading : ${masquerade}
1102 pop is enabled             : ${pop_kinds}
1103 SASL support               : ${sasl_support}"
1104 echo ""