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)dnl
  51   APOPLIB=md5.o
  52   enable_pop=yes
  53 fi
  54 AC_SUBST(APOPLIB)dnl
  55
  56 dnl Do you want to debug nmh?
  57 AC_ARG_ENABLE(debug,
  58   AS_HELP_STRING([--enable-debug],[enable nmh code debugging]))
  59 dnl The old redundant --enable-nmh-debug is deprecated and undocumented.
  60 if test x"$enable_nmh_debug" = x"yes"; then
  61   enable_debug=yes
  62 fi
  63
  64 dnl Allow users to send email from addresses other than their default?
  65 AC_ARG_ENABLE(masquerade,
  66   AS_HELP_STRING([--enable-masquerade='draft_from mmailid username_extension'],
  67     [enable up to 3 types of address masquerading]),
  68   [if test x"$enable_masquerade" = x"yes"; then
  69     masquerade="draft_from mmailid username_extension"
  70   else
  71     masquerade="$enable_masquerade"
  72   fi])
  73 AC_SUBST(masquerade)dnl
  74
  75 dnl Do you want mhe support?
  76 AC_ARG_ENABLE(mhe,
  77   AS_HELP_STRING([--disable-mhe],[disable mhe support]))
  78
  79 dnl mhe support is on by default, so define it unless --disable-mhe or the
  80 dnl deprecated, undocumented --disable-nmh-mhe are specified.
  81 if test x"$enable_mhe" != x"no" -a x"$enable_nmh_mhe" != x"no"; then
  82   AC_DEFINE(MHE)dnl
  83 fi
  84
  85 dnl Do you want client-side support for pop?
  86 AC_ARG_ENABLE(pop,
  87   AS_HELP_STRING([--enable-pop], [enable client-side support for plain POP3]))
  88 dnl The old redundant --enable-nmh-pop is deprecated and undocumented.
  89 if test x"$enable_nmh_pop" = x"yes"; then
  90   enable_pop=yes
  91 fi
  92
  93 dnl Do you want client-side support for using SASL for authentication?
  94 dnl Note that this code will be enabled for both POP and SMTP
  95 AC_ARG_WITH(cyrus-sasl, AS_HELP_STRING([--with-cyrus-sasl=DIR],
  96   [specify location of Cyrus SASL library]))
  97 if test x"$with_cyrus_sasl" != x -a x"$with_cyrus_sasl" != x"no"; then
  98   AC_DEFINE(CYRUS_SASL)dnl
  99   sasl_support=yes
 100 else
 101   sasl_support=no
 102 fi
 103
 104 dnl What should be the default editor?
 105 AC_ARG_WITH(editor,
 106   AS_HELP_STRING([--with-editor=EDITOR],[specify the default editor]))
 107
 108 if test -n "$with_editor"; then
 109   editorpath="$with_editor"
 110 fi
 111
 112 dnl Set the backup prefix
 113 AC_ARG_WITH([hash-backup],
 114   AS_HELP_STRING([--with-hash-backup],[use # as the backup prefix (default: ,)]))
 115 if test x"$with_hash_backup" != x -a x"$with_hash_backup" != x"no"; then
 116   backup_prefix="#"
 117 else
 118   backup_prefix=","
 119 fi
 120 AC_DEFINE_UNQUOTED(BACKUP_PREFIX, "$backup_prefix")dnl
 121
 122 dnl Do you want support for hesiod
 123 AC_ARG_WITH(hesiod,
 124   AS_HELP_STRING([--with-hesiod=DIR],[specify location of Hesiod]))
 125 if test x"$with_hesiod" != x -a x"$with_hesiod" != x"no"; then
 126   AC_DEFINE(HESIOD)dnl
 127 fi
 128
 129 dnl Do you want client-side support for kpop
 130 AC_ARG_WITH(krb4, AS_HELP_STRING([--with-krb4=DIR],
 131   [specify location of Kerberos V4 for KPOP support]))
 132 if test x"$with_krb4" != x -a x"$with_krb4" != x"no"; then
 133   enable_pop=yes
 134   AC_DEFINE(KPOP)dnl
 135   AC_DEFINE(KPOP_PRINCIPAL, "pop")dnl
 136 fi
 137
 138 dnl After we know if we're including apop and kpop support, do pop stuff
 139 if test x"$enable_pop" = x"yes"; then
 140   AC_DEFINE(POP)dnl
 141   POPLIB=popsbr.o
 142   POPSED='/^%nmhbeginpop%/d;/^%nmhendpop%/d'
 143 else
 144   POPSED='/^%nmhbeginpop%/,/^%nmhendpop%/d'
 145 fi
 146 AC_SUBST(POPLIB)dnl
 147 AC_SUBST(POPSED)dnl
 148
 149 dnl What method of locking to use?
 150 AC_ARG_WITH(locking,
 151   AS_HELP_STRING([--with-locking=@<:@dot|fcntl|flock|lockf@:>@],
 152   [specify the file locking method]))
 153
 154 if test x"$with_locking" = x"dot"; then
 155   LOCKTYPE="dot"
 156   AC_DEFINE(DOT_LOCKING)dnl
 157 elif test x"$with_locking" = x"flock"; then
 158   LOCKTYPE="flock"
 159   AC_DEFINE(FLOCK_LOCKING)dnl
 160 elif test x"$with_locking" = x"lockf"; then
 161   LOCKTYPE="lockf"
 162   AC_DEFINE(LOCKF_LOCKING)dnl
 163 elif test x"$with_locking" = x"fcntl"; then
 164   LOCKTYPE="fcntl"
 165   AC_DEFINE(FCNTL_LOCKING)dnl
 166 else
 167   LOCKTYPE="dot"
 168   AC_DEFINE(DOT_LOCKING)dnl
 169 fi
 170
 171 dnl What method of posting should post use?
 172 AC_ARG_WITH(mts,
 173   AS_HELP_STRING([--with-mts=@<:@smtp|sendmail@:>@],
 174   [specify the default mail transport agent/service]))
 175
 176 if test x"$with_mts" = x"smtp"; then
 177   MTS="smtp"
 178 elif test x"$with_mts" = x"sendmail"; then
 179   MTS="sendmail"
 180 else
 181   MTS="smtp"
 182 fi
 183 AC_SUBST(MTS)dnl
 184
 185 dnl Both the smtp and sendmail mail transport services use the smtp code
 186 AC_DEFINE(SMTPMTS)dnl
 187
 188 dnl What should be the default pager?
 189 AC_ARG_WITH(pager,
 190   AS_HELP_STRING([--with-pager=PAGER],[specify the default pager]))
 191
 192 if test -n "$with_pager"; then
 193   pagerpath="$with_pager"
 194 fi
 195
 196 dnl What should be the default mail server(s)?
 197 AC_ARG_WITH(smtpservers,
 198   AS_HELP_STRING([--with-smtpservers='SMTPSERVER1@<:@ SMTPSERVER2...@:>@'],
 199   [specify the default SMTP server(s) @<:@localhost@:>@]))
 200 if test -n "$with_smtpservers"; then
 201   smtpservers="$with_smtpservers"
 202 else
 203   smtpservers="localhost"
 204 fi
 205 AC_SUBST(smtpservers)dnl
 206
 207 dnl ----------------------------------------------------
 208 dnl Default location is /usr/local/nmh/{bin,etc,lib,man}
 209 dnl ----------------------------------------------------
 210 AC_PREFIX_DEFAULT(/usr/local/nmh)
 211
 212 dnl ------------------
 213 dnl CHECK THE COMPILER
 214 dnl ------------------
 215 dnl We want these before the checks,
 216 dnl so the checks can modify their values.
 217 test -z "$CFLAGS" && CFLAGS= auto_cflags=1
 218 if test x"$enable_debug" = x"yes"; then
 219   test -z "$LDFLAGS" && LDFLAGS=-g
 220 fi
 221
 222 AC_PROG_CC
 223
 224 dnl if the user hasn't specified CFLAGS, then
 225 dnl   if compiler is gcc, then
 226 dnl     use -O2 and some warning flags
 227 dnl   else use -O
 228 if test -n "$auto_cflags"; then
 229   if test x"$enable_debug" = x"yes"; then
 230     if test -n "$GCC"; then
 231       test -z "$CFLAGS" && CFLAGS="-Wall -g" || CFLAGS="$CFLAGS -Wall -g"
 232     else
 233       test -z "$CFLAGS" && CFLAGS=-g || CFLAGS="$CFLAGS -g"
 234     fi
 235   else
 236     if test -z "$LDFLAGS"; then
 237       case "$build_os" in
 238         darwin*)
 239           LDFLAGS=
 240           ;;
 241         *)
 242           LDFLAGS=-s
 243           ;;
 244       esac
 245     fi
 246     if test -n "$GCC"; then
 247       test -z "$CFLAGS" && CFLAGS="-Wall -O2" || CFLAGS="$CFLAGS -Wall -O2"
 248     else
 249       test -z "$CFLAGS" && CFLAGS=-O  || CFLAGS="$CFLAGS -O"
 250     fi
 251   fi
 252 fi
 253
 254 AC_C_CONST              dnl Does compiler support `const'.
 255
 256 dnl ------------------
 257 dnl CHECK FOR PROGRAMS
 258 dnl ------------------
 259 AC_PROG_MAKE_SET        dnl Does make define $MAKE
 260 AC_PROG_INSTALL         dnl Check for BSD compatible `install'
 261 AC_PROG_RANLIB          dnl Check for `ranlib'
 262 AC_PROG_AWK             dnl Check for mawk,gawk,nawk, then awk
 263 AC_PROG_LEX             dnl Check for lex/flex
 264
 265 dnl Look for `cut'
 266 pathtmp=/usr/bin:/bin:/usr/local/bin:/usr/xpg4/bin:/usr/ucb
 267 AC_PATH_PROG(cutpath, cut, no, [$pathtmp])
 268
 269 dnl ----------------------------------------------
 270 dnl check for lclint, and lint if it doesn't exist
 271 dnl ----------------------------------------------
 272 AC_CHECK_PROG(linttmp1, lclint, lclint, no)dnl
 273 if test x$ac_cv_prog_linttmp1 != xno ; then
 274   LINT=$ac_cv_prog_linttmp1
 275   LINTFLAGS="-weak +posixlib -macrovarprefixexclude"
 276 else
 277   AC_CHECK_PROG(linttmp2, lint, lint, no)dnl
 278   if test x$ac_cv_prog_linttmp2 != xno ; then
 279     LINT=$ac_cv_prog_linttmp2
 280     LINTFLAGS=""
 281   else
 282     LINT="echo 'No lint program found'"
 283     LINTFLAGS=""
 284   fi
 285 fi
 286 AC_SUBST(LINT)dnl
 287 AC_SUBST(LINTFLAGS)dnl
 288
 289 dnl try to figure out which one we've got
 290 AC_CHECK_PROG(LIBTOOL, libtool, libtool, , [$pathtmp])
 291 NMH_PROG_GNU_LIBTOOL
 292
 293 dnl Check for lorder and tsort commands
 294 AC_CHECK_PROG(LORDER, lorder, lorder, no)dnl
 295 AC_CHECK_PROG(TSORT, tsort, tsort, no)dnl
 296
 297 dnl If either doesn't exist, replace them with echo and cat
 298 if test x$ac_cv_prog_LORDER != xlorder -o x$ac_cv_prog_TSORT != xtsort; then
 299   LORDER=echo
 300   TSORT=cat
 301   AC_SUBST(LORDER)dnl
 302   AC_SUBST(TSORT)dnl
 303 dnl Mac OS X has lorder, but sh is too broken for it to work
 304 dnl elif test -z "`lorder config/config.c 2>&1 | grep config/config.c`" ; then
 305 dnl   LORDER=echo
 306 dnl   TSORT=cat
 307 dnl   AC_SUBST(LORDER)dnl
 308 dnl   AC_SUBST(TSORT)dnl
 309 fi
 310
 311 dnl Check whether tsort can deal with loops
 312 AC_CACHE_CHECK(whether tsort can deal with loops, nmh_cv_tsort_loop,
 313   [if test -z "`echo a b b a | tsort 2>/dev/null | grep a`" ; then
 314     nmh_cv_tsort_loop=no
 315   else
 316     nmh_cv_tsort_loop=yes
 317   fi])
 318 if test x$nmh_cv_tsort_loop = xno ; then
 319   LORDER=echo
 320   TSORT=cat
 321   AC_SUBST(LORDER)dnl
 322   AC_SUBST(TSORT)dnl
 323 fi
 324
 325 dnl Look for `ls'
 326 pathtmp=/usr/bin:/bin:/usr/local/bin:/usr/xpg4/bin:/usr/ucb
 327 AC_PATH_PROG(lspath, ls, no, [$pathtmp])
 328
 329 dnl See how we get ls to display the owner and the group
 330 if test "$lspath" != "no"; then
 331   AC_CACHE_CHECK(how to get ls to show us the group ownership of a file,
 332                  nmh_cv_ls_grpopt,
 333   [if test x"`$lspath -dl / | $AWK '{print $9}'`" = x"/"; then
 334     dnl There were 9 parameters, so unless this is a really bizarre, nonstandard
 335     dnl ls, it would seem -l gave us both the user and group.  On this type of
 336     dnl ls, -g makes _only_ the group be displayed (and not the user).
 337     nmh_cv_ls_grpopt="-l"
 338   else
 339     dnl Looks like -l only gave us the user, so we need -g to get the group too.
 340     nmh_cv_ls_grpopt="-lg"
 341   fi])
 342 fi
 343
 344 dnl Look for `more'
 345 pathtmp=/usr/bin:/bin:/usr/ucb:/usr/local/bin
 346 AC_PATH_PROG(morepath, more, no, [$pathtmp])
 347
 348 dnl If pager is not specified yet,
 349 dnl then use `more' as the default.
 350 if test -z "$pagerpath"; then
 351   pagerpath="$morepath"
 352 fi
 353 AC_SUBST(pagerpath)dnl
 354
 355 dnl Look for `sendmail'
 356 pathtmp=/usr/lib:/usr/sbin:/usr/etc:/usr/ucblib:/usr/bin:/bin
 357 AC_PATH_PROG(sendmailpath, sendmail, /usr/sbin/sendmail, [$pathtmp])
 358
 359 dnl Look for `vi'
 360 pathtmp=/usr/bin:/bin:/usr/ucb:/usr/local/bin
 361 AC_PATH_PROG(vipath, vi, /bin/vi, [$pathtmp])
 362
 363 dnl If editor is not specified yet,
 364 dnl then use `vi' as the default.
 365 if test -z "$editorpath"; then
 366   editorpath="$vipath"
 367 fi
 368 AC_SUBST(editorpath)dnl
 369
 370 dnl Check for broken vi
 371 AC_CACHE_CHECK(for broken vi, nmh_cv_attvibug,
 372 [if echo 'r /nonexist-file
 373 q' | ex > /dev/null
 374 then
 375         nmh_cv_attvibug=no
 376 else
 377         nmh_cv_attvibug=yes
 378 fi])
 379
 380 if test "$nmh_cv_attvibug" = yes; then
 381   AC_DEFINE(ATTVIBUG)dnl
 382 fi
 383
 384 dnl ----------------------------------------------------------
 385 dnl FIND MAIL SPOOL AND SEE IF WE NEED TO MAKE inc SETGID MAIL
 386 dnl ----------------------------------------------------------
 387 AC_CACHE_CHECK(where mail spool is located, nmh_cv_mailspool,
 388 [for mailspool in /var/mail        dnl
 389                   /var/spool/mail  dnl
 390                   /usr/spool/mail  dnl
 391                   /dev/null;       dnl Just in case we fall through
 392 do
 393   test -d $mailspool && break
 394 done
 395 nmh_cv_mailspool=$mailspool
 396 ])
 397 mailspool=$nmh_cv_mailspool
 398 AC_SUBST(mailspool)dnl
 399
 400 dnl See whether the mail spool directory is world-writable.
 401 if test "$lspath" != "no" -a "$cutpath" != "no"; then
 402   AC_CACHE_CHECK(whether the mail spool is world-writable,
 403                  nmh_cv_mailspool_world_writable,
 404   [if test "`$lspath -dlL $mailspool | $cutpath -c9`" = "-"; then
 405     nmh_cv_mailspool_world_writable=no
 406   else
 407     nmh_cv_mailspool_world_writable=yes
 408   fi])
 409 fi
 410
 411 dnl Also, check for liblockfile (as found on Debian systems)
 412 AC_CHECK_HEADER(lockfile.h, AC_CHECK_LIB(lockfile, lockfile_create) )
 413
 414 dnl and whether its companion program dotlockfile is setgid
 415 AC_PATH_PROG(dotlockfilepath, dotlockfile, no)
 416 if test "$ac_cv_lib_lockfile_lockfile_create" != "no" ; then
 417   if test "$ac_cv_path_dotlockfilepath" != "no" ; then
 418     AC_CACHE_CHECK(whether dotlockfile is setgid, nmh_cv_dotlockfile_setgid,
 419     [ if test -g "$ac_cv_path_dotlockfilepath" ; then
 420         nmh_cv_dotlockfile_setgid=yes
 421       else
 422         nmh_cv_dotlockfile_setgid=no
 423       fi])
 424   fi
 425 fi
 426
 427 dnl If mailspool is not world-writable and dotlockfile is not setgid,
 428 dnl we need to #define MAILGROUP to 1 and make inc setgid.
 429 if test x"$nmh_cv_mailspool_world_writable" = x"no" -a x"$nmh_cv_dotlockfile_setgid" != x"yes" ; then
 430   dnl do we really need both of these?
 431   AC_DEFINE(MAILGROUP)dnl
 432   SETGID_MAIL=1
 433 fi
 434 AC_SUBST(SETGID_MAIL)dnl
 435
 436 dnl Use ls to see which group owns the mail spool directory.
 437 AC_CACHE_CHECK(what group owns the mail spool, nmh_cv_ls_mail_grp,
 438 [nmh_cv_ls_mail_grp=`$lspath -dL $nmh_cv_ls_grpopt $mailspool|$AWK '{print $4}'`
 439 ])
 440 MAIL_SPOOL_GRP=$nmh_cv_ls_mail_grp
 441 AC_SUBST(MAIL_SPOOL_GRP)dnl
 442
 443 dnl ------------------
 444 dnl CHECK HEADER FILES
 445 dnl ------------------
 446 AC_HEADER_DIRENT
 447 AC_HEADER_STDC
 448 AC_HEADER_TIME
 449 AC_HEADER_SYS_WAIT
 450 AC_HEADER_STAT
 451 AC_CHECK_HEADERS(string.h memory.h stdlib.h unistd.h errno.h fcntl.h \
 452                  limits.h crypt.h termcap.h termio.h termios.h locale.h \
 453                  langinfo.h wchar.h wctype.h iconv.h netdb.h \
 454                  sys/param.h sys/time.h sys/utsname.h sys/stream.h \
 455                  arpa/inet.h arpa/ftp.h)
 456
 457 AC_CACHE_CHECK(POSIX termios, nmh_cv_sys_posix_termios,
 458 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
 459 #include <unistd.h>
 460 #include <termios.h>]],
 461 [[/* SunOS 4.0.3 has termios.h but not the library calls.  */
 462 tcgetattr(0, 0);]])],
 463 nmh_cv_sys_posix_termios=yes, nmh_cv_sys_posix_termios=no)])
 464
 465 if test $nmh_cv_sys_posix_termios = yes; then
 466   AC_CACHE_CHECK(TIOCGWINSZ in termios.h,
 467   nmh_cv_header_termios_h_tiocgwinsz,
 468   [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
 469 #include <termios.h>]],
 470   [[int x = TIOCGWINSZ;]])],
 471   nmh_cv_header_termios_h_tiocgwinsz=yes,nmh_cv_header_termios_h_tiocgwinsz=no)])
 472 else
 473   nmh_cv_header_termios_h_tiocgwinsz=no
 474 fi
 475
 476 if test $nmh_cv_header_termios_h_tiocgwinsz = no; then
 477   AC_CACHE_CHECK(TIOCGWINSZ in sys/ioctl.h,
 478   nmh_cv_header_sys_ioctl_h_tiocgwinsz,
 479   [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
 480 #include <sys/ioctl.h>]],
 481   [[int x = TIOCGWINSZ;]])],
 482   nmh_cv_header_sys_ioctl_h_tiocgwinsz=yes,nmh_cv_header_sys_ioctl_h_tiocgwinsz=no)])
 483   if test $nmh_cv_header_sys_ioctl_h_tiocgwinsz = yes; then
 484     AC_DEFINE(GWINSZ_IN_SYS_IOCTL)dnl
 485   fi
 486 fi
 487
 488 dnl
 489 dnl Checks for _IO_write_ptr. A Linuxism used by nmh on linux. We
 490 dnl really use a whole set of them, but this check should be
 491 dnl sufficient.
 492 dnl
 493 AC_CHECK_HEADER(libio.h, [
 494   AC_EGREP_HEADER(_IO_write_ptr, libio.h, [
 495     AC_DEFINE(LINUX_STDIO) ]) ])
 496
 497 AC_CHECK_HEADER([sys/ptem.h], AC_DEFINE(WINSIZE_IN_PTEM),,
 498 [[#if HAVE_SYS_STREAM_H
 499 #  include <sys/stream.h>
 500 #endif
 501 ]])
 502
 503 dnl ---------------
 504 dnl CHECK FUNCTIONS
 505 dnl ---------------
 506 AC_FUNC_VFORK
 507 AC_CHECK_LIB(mkstemp,mkstemp)
 508 AC_CHECK_FUNCS(waitpid wait3 sigaction sigprocmask sigblock sigsetmask \
 509                sighold sigrelse writev lstat uname tzset killpg mkstemp \
 510                sethostent getutent nl_langinfo mbtowc wcwidth)
 511
 512 dnl solaris screws this up
 513 AC_CHECK_FUNC(gethostbyname, [AC_DEFINE(HAVE_GETHOSTBYNAME)],
 514   AC_CHECK_LIB(nsl, gethostbyname, [AC_DEFINE(HAVE_GETHOSTBYNAME)] ) )
 515
 516 dnl sigsetjmp may be a macro
 517 AC_MSG_CHECKING(for sigsetjmp)
 518 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <setjmp.h>]],
 519   [[sigsetjmp((void *)0, 0);]])],[AC_DEFINE(HAVE_SIGSETJMP) AC_MSG_RESULT(yes)],
 520   [AC_MSG_RESULT(no)])
 521
 522 AC_REPLACE_FUNCS(snprintf strdup)
 523
 524 dnl Look for the initgroups() declaration.  On AIX 4.[13], Solaris 4.1.3, and
 525 dnl ULTRIX 4.2A the function is defined in libc but there's no declaration in
 526 dnl any system header.
 527 dnl
 528 dnl On Solaris 2.[456], the declaration is in <grp.h>.  On HP-UX 9-11 and
 529 dnl (reportedly) FreeBSD 3.[23], it's in <unistd.h>.  Any other locations we
 530 dnl need to check?
 531 AC_EGREP_HEADER(initgroups, grp.h, AC_DEFINE(INITGROUPS_HEADER, <grp.h>),
 532                 AC_EGREP_HEADER(initgroups, unistd.h,
 533                                 AC_DEFINE(INITGROUPS_HEADER, <unistd.h>)))
 534
 535 dnl On AIX 4.1, snprintf() is defined in libc.a but there's no prototype in
 536 dnl <stdio.h> or elsewhere.  Apparently it's not officially supported (though it
 537 dnl seems to work perfectly and IBM apparently uses it in internal code).
 538 dnl Anyhow, if we omit our own snprintf() and vsnprintf() prototypes when we
 539 dnl HAVE_SNPRINTF, we get a billion warnings at compile time.  Use the C
 540 dnl preprocessor to preprocess stdio.h and make sure that there's actually a
 541 dnl prototype.
 542 AC_EGREP_HEADER(snprintf, stdio.h, AC_DEFINE(HAVE_SNPRINTF_PROTOTYPE))
 543
 544 dnl Check for multibyte character set support
 545 if test "x$ac_cv_header_wchar_h" = "xyes" -a "x$ac_cv_header_wctype_h" = "xyes" \
 546     -a "x$ac_cv_func_wcwidth" = "xyes" -a "x$ac_cv_func_mbtowc" = "xyes"; then
 547   AC_DEFINE(MULTIBYTE_SUPPORT, 1,
 548     [Define to enable support for multibyte character sets])
 549 fi
 550
 551 dnl -------------------
 552 dnl CHECK FOR LIBRARIES
 553 dnl -------------------
 554 dnl Check location of modf
 555 AC_CHECK_FUNC(modf, , AC_CHECK_LIB(m, modf))
 556
 557 dnl Checks for network libraries (nsl, socket)
 558 AC_CHECK_NETLIBS
 559
 560 termcap_curses_order="termcap curses ncurses"
 561 for lib in $termcap_curses_order; do
 562   AC_CHECK_LIB(${lib}, tgetent, [TERMLIB="-l$lib"; break])
 563 done
 564 AC_SUBST(TERMLIB)dnl
 565
 566 dnl ---------------
 567 dnl CHECK FOR ICONV
 568 dnl ---------------
 569
 570 dnl Find iconv. It may be in libiconv and may be iconv() or libiconv()
 571 if test "x$ac_cv_header_iconv_h" = "xyes"; then
 572   AC_CHECK_FUNC(iconv, ac_found_iconv=yes, ac_found_iconv=no)
 573   if test "x$ac_found_iconv" = "xno"; then
 574     AC_CHECK_LIB(iconv, iconv, ac_found_iconv=yes)
 575     if test "x$ac_found_iconv" = "xno"; then
 576       AC_CHECK_LIB(iconv, libiconv, ac_found_iconv=yes)
 577     fi
 578     if test "x$ac_found_iconv" != "xno"; then
 579       LIBS="-liconv $LIBS"
 580     fi
 581   else
 582     dnl Handle case where there is a native iconv but iconv.h is from libiconv
 583     AC_CHECK_DECL(_libiconv_version,
 584       [ AC_CHECK_LIB(iconv, libiconv, LIBS="-liconv $LIBS") ],,
 585       [ #include <iconv.h> ])
 586   fi
 587 fi
 588 if test "x$ac_found_iconv" = xyes; then
 589   AC_DEFINE(HAVE_ICONV, 1, [Define if you have the iconv() function.])
 590 fi
 591
 592 dnl Check if iconv uses const in prototype declaration
 593 if test "x$ac_found_iconv" = "xyes"; then
 594   AC_CACHE_CHECK(for iconv declaration, ac_cv_iconv_const,
 595     [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <stdlib.h>
 596         #include <iconv.h>]],
 597         [[#ifdef __cplusplus
 598           "C"
 599           #endif
 600           #if defined(__STDC__) || defined(__cplusplus)
 601           size_t iconv (iconv_t cd, char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);
 602           #else
 603           size_t iconv();
 604           #endif]])],
 605       [ac_cv_iconv_const=],
 606       [ac_cv_iconv_const=const])])
 607   AC_DEFINE_UNQUOTED([ICONV_CONST], $ac_cv_iconv_const,
 608     [Define as const if the declaration of iconv() needs const.])
 609 fi
 610
 611 dnl --------------
 612 dnl CHECK FOR NDBM
 613 dnl --------------
 614
 615 AC_ARG_WITH([ndbm],AS_HELP_STRING([--with-ndbm=ARG],[use -lARG to link with ndbm]),
 616             [nmh_ndbm=$withval],[nmh_ndbm=autodetect])
 617 AC_ARG_WITH([ndbmheader],AS_HELP_STRING([--with-ndbmheader=ARG],[#include <ARG> to use ndbm]),
 618             [nmh_ndbmheader=$withval],[nmh_ndbmheader=autodetect])
 619
 620 if test "$nmh_ndbm" = "autodetect"; then
 621   if test "$nmh_ndbmheader" != "autodetect"; then
 622     AC_MSG_ERROR([must specify both --with-ndbm and --with-ndbmheader or neither])
 623   else
 624
 625     dnl There are at least four implementations of ndbm, and
 626     dnl several of those can be in different places at the whim
 627     dnl of the system integrator. A good summary of this mess
 628     dnl can be found at http://www.unixpapa.com/incnote/dbm.html
 629
 630     dnl Classic ndbm with no library required (eg NetBSD): try this
 631     dnl first so we don't accidentally link in a pointless but harmless
 632     dnl library in one of the later ndbm.h+libfoo tests:
 633     NMH_CHECK_NDBM(ndbm.h,,,
 634     dnl Berkeley DBv2 emulating ndbm: header in db.h:
 635       NMH_CHECK_NDBM(db.h,db,,
 636     dnl Berkeley DBv1 emulating ndbm:
 637         NMH_CHECK_NDBM(ndbm.h,db,,
 638           NMH_CHECK_NDBM(ndbm.h,db1,,
 639     dnl Classic ndbm:
 640             NMH_CHECK_NDBM(ndbm.h,ndbm,,
 641     dnl glibc2.1 systems put db1 in a subdir:
 642               NMH_CHECK_NDBM(db1/ndbm.h,db1,,
 643     dnl GNU gdbm emulating ndbm, with header possibly in gdbm/
 644     dnl and possibly needing gbdm_compat library:
 645                 NMH_CHECK_NDBM(gdbm/ndbm.h,gdbm,,
 646                   NMH_CHECK_NDBM(gdbm/ndbm.h,gdbm_compat -lgdbm,,
 647                     NMH_CHECK_NDBM(ndbm.h,gdbm,,
 648                       NMH_CHECK_NDBM(ndbm.h,gdbm_compat -lgdbm))))))))))
 649
 650   fi
 651 else
 652   dnl We don't really need to check that the user-specified values work,
 653   dnl but it is a convenience to the user to bomb out early rather than
 654   dnl after configure and half the compile process.
 655   NMH_CHECK_NDBM([$nmh_ndbmheader],[$nmh_ndbm])
 656 fi
 657
 658 if test "$nmh_ndbm_found" = "no"; then
 659   AC_MSG_ERROR([could not find a working ndbm library/header combination])
 660 else
 661   dnl Now export the lib/header to our makefile/config.h:
 662   if test x"$nmh_ndbmheader" != x; then
 663     AC_DEFINE_UNQUOTED(NDBM_HEADER, <$nmh_ndbmheader>)
 664   fi
 665   if test x"$nmh_ndbm" != x; then
 666     NDBM_LIBS="-l$nmh_ndbm"
 667   else
 668     NDBM_LIBS=
 669   fi
 670   AC_SUBST(NDBM_LIBS)
 671 fi
 672
 673
 674 dnl ----------------
 675 dnl CHECK FOR HESIOD
 676 dnl ----------------
 677 if test x"$with_hesiod" != x -a x"$with_hesiod" != x"no"; then
 678   if test x"$with_hesiod" != x"yes"; then
 679     HESIOD_INCLUDES="-I$with_hesiod/include"
 680     HESIOD_LIBS="-L$with_hesiod/lib"
 681   fi
 682   AC_CHECK_FUNC(res_send,
 683         [AC_CHECK_LIB(hesiod, hes_resolve,
 684                 [HESIOD_LIBS="$HESIOD_LIBS -lhesiod"],
 685                 [AC_MSG_ERROR(Hesiod library not found)],
 686                 $HESIOD_LIBS)],
 687         [AC_CHECK_LIB(hesiod, hes_resolve,
 688                 [HESIOD_LIBS="$HESIOD_LIBS -lhesiod -lresolv"],
 689                 [AC_MSG_ERROR(Hesiod library not found)],
 690                 $HESIOD_LIBS -lresolv)])
 691
 692 fi
 693 AC_SUBST(HESIOD_INCLUDES)dnl
 694 AC_SUBST(HESIOD_LIBS)dnl
 695
 696 dnl ----------------------------------
 697 dnl CHECK FOR KRB4 (Kerberos4 support)
 698 dnl ----------------------------------
 699 if test x"$with_krb4" != x -a x"$with_krb4" != x"no"; then
 700   if test x"$with_krb4" != x"yes"; then
 701     KRB4_INCLUDES="-I$with_krb4/include"
 702     if test -d "$with_krb4/include/kerberosIV"; then
 703       KRB4_INCLUDES="$KRB4_INCLUDES -I$with_krb4/include/kerberosIV"
 704     fi
 705     KRB4_LIBS="-L$with_krb4/lib"
 706   elif test -d /usr/include/kerberosIV; then
 707     KRB4_INCLUDES="-I/usr/include/kerberosIV"
 708   fi
 709 dnl First, check if we have -lk5crypto, since that means we have a recent krb5
 710
 711   AC_CHECK_LIB(k5crypto, krb5_encrypt,
 712         [AC_CHECK_LIB(krb4, krb_rd_req,
 713                 [KRB4_LIBS="$KRB4_LIBS -lkrb4 -ldes425 -lkrb5 -lk5crypto -lcom_err"],
 714                 [AC_MSG_ERROR(Kerberos 4 compatibility libraries not found)],
 715                 $KRB4_LIBS -ldes425 -lkrb5 -lk5crypto -lcom_err)],
 716
 717         [AC_CHECK_LIB(krb4, krb_rd_req,
 718             [KRB4_LIBS="$KRB4_LIBS -lkrb4 -ldes425 -lkrb5 -lcrypto -lcom_err"],
 719             [AC_CHECK_LIB(krb, krb_rd_req,
 720               [KRB4_LIBS="$KRB4_LIBS -lkrb -ldes"],
 721               [AC_MSG_ERROR(Kerberos 4 libraries not found)],
 722               $KRB4_LIBS -ldes)],
 723             $KRB4_LIBS -ldes425 -lkrb5 -lcrypto -lcom_err)],
 724         $KRB4_LIBS)
 725
 726 fi
 727 AC_SUBST(KRB4_INCLUDES)dnl
 728 AC_SUBST(KRB4_LIBS)dnl
 729
 730 dnl --------------------
 731 dnl CHECK FOR CYRUS SASL
 732 dnl --------------------
 733 if test x"$with_cyrus_sasl" != x -a x"$with_cyrus_sasl" != x"no"; then
 734   if test x"$with_cyrus_sasl" != x"yes"; then
 735     SASL_INCLUDES="-I$with_cyrus_sasl/include"
 736     SASL_LIBS="-L$with_cyrus_sasl/lib"
 737
 738     dnl Do OS-specific hardcoding of SASL shared library path into executables,
 739     dnl so user isn't forced to set environment variables like Solaris'
 740     dnl LD_LIBRARY_PATH.
 741     case "$target_os" in
 742       solaris*)
 743         SASL_LIBS="$SASL_LIBS -R$with_cyrus_sasl/lib"
 744         ;;
 745     esac
 746   fi
 747   save_LDFLAGS="$LDFLAGS"
 748   LDFLAGS="$LDFLAGS $SASL_LIBS"
 749   AC_CHECK_LIB(sasl2, sasl_client_new,
 750     [SASL_LIBS="$SASL_LIBS -lsasl2"],
 751     [AC_MSG_ERROR(Cyrus SASL library not found)])
 752   LDFLAGS="$save_LDFLAGS"
 753 fi
 754 AC_SUBST(SASL_INCLUDES)dnl
 755 AC_SUBST(SASL_LIBS)dnl
 756
 757 dnl ---------------------
 758 dnl CHECK TERMCAP LIBRARY
 759 dnl ---------------------
 760
 761 dnl Add the termcap library, so that the following configure
 762 dnl tests will find it when it tries to link test programs.
 763 nmh_save_LIBS="$LIBS"
 764 LIBS="$TERMLIB $LIBS"
 765
 766 dnl Checks for external variable ospeed in the termcap library.
 767 AC_CACHE_CHECK(if an include file defines ospeed,
 768 nmh_cv_decl_ospeed_include_defines,
 769 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
 770 #if HAVE_TERMIOS_H
 771 #include <termios.h>
 772 #endif
 773 #if HAVE_TERMCAP_H
 774 #include <termcap.h>
 775 #endif]], [[ospeed = 0;]])],
 776 nmh_cv_decl_ospeed_include_defines=yes,nmh_cv_decl_ospeed_include_defines=no)])
 777
 778 if test $nmh_cv_decl_ospeed_include_defines = no; then
 779   AC_CACHE_CHECK(if you must define ospeed,
 780   nmh_cv_decl_ospeed_must_define,
 781   [AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
 782   [[extern short ospeed; ospeed = 0;]])],
 783   nmh_cv_decl_ospeed_must_define=yes,nmh_cv_decl_ospeed_must_define=no)])
 784 fi
 785
 786 if test $nmh_cv_decl_ospeed_include_defines = yes; then
 787   AC_DEFINE(HAVE_OSPEED)dnl
 788 elif test $nmh_cv_decl_ospeed_must_define = yes; then
 789   AC_DEFINE(HAVE_OSPEED)
 790   AC_DEFINE(MUST_DEFINE_OSPEED)
 791 fi
 792
 793 dnl dnl Checks if tgetent accepts NULL and will
 794 dnl dnl allocate its own termcap buffer.
 795 dnl AC_CACHE_CHECK(if tgetent accepts NULL,
 796 dnl nmh_cv_func_tgetent_accepts_null,
 797 dnl [AC_TRY_RUN([main(){int i = tgetent((char*)0,"vt100");exit(!i || i == -1);}],
 798 dnl   nmh_cv_func_tgetent_accepts_null=yes,
 799 dnl   nmh_cv_func_tgetent_accepts_null=no,
 800 dnl   nmh_cv_func_tgetent_accepts_null=no)])
 801 dnl if test $nmh_cv_func_tgetent_accepts_null = yes; then
 802 dnl   AC_DEFINE(TGETENT_ACCEPTS_NULL)
 803 dnl fi
 804
 805 dnl Now put the libraries back to what it was before we
 806 dnl starting checking the termcap library.
 807 LIBS="$nmh_save_LIBS"
 808
 809 dnl --------------
 810 dnl CHECK TYPEDEFS
 811 dnl --------------
 812 AC_TYPE_SIGNAL
 813 AC_TYPE_PID_T
 814 AC_TYPE_OFF_T
 815 AC_TYPE_UID_T
 816 AC_TYPE_MODE_T
 817 AC_TYPE_SIZE_T
 818
 819 dnl Check for sigset_t.  Currently I'm looking in
 820 dnl <sys/types.h> and <signal.h>.  Others might need
 821 dnl to be added.
 822 AC_CACHE_CHECK(for sigset_t, nmh_cv_type_sigset_t,
 823 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
 824 #include <signal.h>]], [[sigset_t tempsigset;]])],
 825 nmh_cv_type_sigset_t=yes,nmh_cv_type_sigset_t=no)])
 826 if test $nmh_cv_type_sigset_t = no; then
 827   AC_DEFINE(sigset_t, unsigned int)
 828 fi
 829
 830 dnl ----------------
 831 dnl CHECK STRUCTURES
 832 dnl ----------------
 833 AC_CHECK_MEMBERS(struct stat.st_blksize)
 834
 835 AC_CACHE_CHECK(for tm_gmtoff in struct tm, nmh_cv_struct_tm_gmtoff,
 836 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#ifdef TIME_WITH_SYS_TIME
 837 # include <sys/time.h>
 838 # include <time.h>
 839 #else
 840 # ifdef TM_IN_SYS_TIME
 841 #  include <sys/time.h>
 842 # else
 843 #  include <time.h>
 844 # endif
 845 #endif]], [[struct tm temptm; temptm.tm_gmtoff = 0;]])],
 846 nmh_cv_struct_tm_gmtoff=yes,nmh_cv_struct_tm_gmtoff=no)])
 847 if test $nmh_cv_struct_tm_gmtoff = yes; then
 848   AC_DEFINE(HAVE_TM_GMTOFF)
 849 fi
 850
 851 AC_CACHE_CHECK(for ut_type in struct utmp, nmh_cv_struct_utmp_ut_type,
 852 [AC_TRY_COMPILE(
 853 [#include <utmp.h>],
 854 [struct utmp temputmp; temputmp.ut_type = 0;],
 855   nmh_cv_struct_utmp_ut_type=yes, nmh_cv_struct_utmp_ut_type=no)])
 856 if test $nmh_cv_struct_utmp_ut_type = yes; then
 857   AC_DEFINE(HAVE_UTMP_UT_TYPE)
 858 fi
 859
 860 dnl -------------
 861 dnl CHECK SIGNALS
 862 dnl -------------
 863 dnl What style of signal do you have (POSIX, BSD, or SYSV)?
 864 AC_MSG_CHECKING(what style of signals to use)
 865 if test $ac_cv_func_sigaction = yes -a $ac_cv_func_sigprocmask = yes; then
 866   signals_style=POSIX_SIGNALS
 867   AC_DEFINE(POSIX_SIGNALS)
 868   AC_DEFINE(RELIABLE_SIGNALS)
 869 elif test $ac_cv_func_sigblock = yes -a $ac_cv_func_sigsetmask = yes; then
 870   signals_style=BSD_SIGNALS
 871   AC_DEFINE(BSD_SIGNALS)
 872   AC_DEFINE(RELIABLE_SIGNALS)
 873 elif test $ac_cv_func_sighold = yes -a $ac_cv_func_sigrelse = yes; then
 874   signals_style=SYSV_SIGNALS
 875   AC_DEFINE(SYSV_SIGNALS)
 876 else
 877   signals_style=NO_SIGNAL_BLOCKING
 878   AC_DEFINE(NO_SIGNAL_BLOCKING)
 879 fi
 880
 881 AC_MSG_RESULT($signals_style)
 882
 883 dnl Where is <signal.h> located?  Needed as input for signames.awk
 884 AC_CACHE_CHECK(where signal.h is located, nmh_cv_path_signal_h,
 885 [for SIGNAL_H in /usr/include/bsd/sys/signal.h  dnl Next
 886                  /usr/include/asm/signal.h      dnl Linux 1.3.0 and above
 887                  /usr/include/asm/signum.h      dnl some versions of Linux/Alpha
 888                  /usr/include/linux/signal.h    dnl Linux up to 1.2.11
 889                  /usr/include/sys/signal.h      dnl Almost everybody else
 890                  /dev/null;                     dnl Just in case we fall through
 891 do
 892   test -f $SIGNAL_H && \
 893   grep '#[      ]*define[       ][      ]*SIG[0-9A-Z]*[         ]*[0-9][0-9]*' $SIGNAL_H > /dev/null && \
 894   break
 895 done
 896 nmh_cv_path_signal_h=$SIGNAL_H
 897 ])
 898 SIGNAL_H=$nmh_cv_path_signal_h
 899 AC_SUBST(SIGNAL_H)dnl
 900
 901 dnl ----------------
 902 dnl OS SPECIFIC DEFINES
 903 dnl ----------------
 904 case "$target_os" in
 905
 906   solaris2*)
 907     AC_DEFINE(SYS5)
 908     AC_DEFINE(SVR4)
 909     ;;
 910   irix*)
 911     AC_DEFINE(SYS5)
 912     AC_DEFINE(SVR4)
 913     ;;
 914   osf*)
 915     AC_DEFINE(SYS5)
 916     AC_DEFINE(SVR4)
 917     ;;
 918   aix*)
 919     AC_DEFINE(SYS5)
 920     AC_DEFINE(SVR4)
 921     ;;
 922   sunos4*)
 923     AC_DEFINE(BSD42)
 924     ;;
 925   freebsd*)
 926     AC_DEFINE(BSD42)
 927     AC_DEFINE(BSD44)
 928     ;;
 929   netbsd*)
 930     AC_DEFINE(BSD42)
 931     AC_DEFINE(BSD44)
 932     ;;
 933   openbsd*)
 934     AC_DEFINE(BSD42)
 935     AC_DEFINE(BSD44)
 936     ;;
 937   bsd/os*)
 938     AC_DEFINE(BSD42)
 939     AC_DEFINE(BSD44)
 940     ;;
 941   sco5*)
 942     AC_DEFINE(SYS5)
 943     AC_DEFINE(SCO_5_STDIO)
 944     ;;
 945 esac
 946
 947
 948 dnl ----------------
 949 dnl OUTPUT MAKEFILES
 950 dnl ----------------
 951 AC_CONFIG_FILES(Makefile config/Makefile h/Makefile sbr/Makefile uip/Makefile \
 952                 mts/Makefile mts/smtp/Makefile \
 953                 etc/Makefile docs/Makefile man/Makefile)
 954 AC_CONFIG_COMMANDS([stamp],[test -z "$CONFIG_HEADERS" || echo > stamp-h])
 955 AC_OUTPUT
 956
 957 dnl Umm, what's the point of these assignments??  -- <dan-nmh@dilvish.speed.net>
 958 eval "nmhbin=${bindir}";         eval "nmhbin2=${nmhbin}"
 959 eval "nmhsysconf=${sysconfdir}"; eval "nmhsysconf2=${nmhsysconf}"
 960 eval "nmhlib=${libdir}";         eval "nmhlib2=${nmhlib}"
 961 eval "nmhman=${mandir}"
 962
 963 pop_kinds=no
 964 if test x"$enable_pop" = x"yes"; then
 965   pop_kinds="yes ("
 966
 967   if test x"$enable_apop" = x"yes"; then
 968     pop_kinds="${pop_kinds}APOP "
 969   fi
 970
 971   if test x"$with_krb4" != x -a x"$with_krb4" != x"no"; then
 972     pop_kinds="${pop_kinds}KPOP "
 973   fi
 974
 975   pop_kinds="${pop_kinds}POP3)"
 976 fi
 977
 978 echo "
 979 nmh configuration
 980 -----------------
 981 nmh version                : AC_PACKAGE_VERSION
 982 target os                  : ${target}
 983 compiler                   : ${CC}
 984 compiler flags             : ${CFLAGS}
 985 linker flags               : ${LDFLAGS}
 986 source code location       : ${srcdir}
 987 binary install path        : ${nmhbin2}
 988 libary install path        : ${nmhlib2}
 989 config files install path  : ${nmhsysconf2}
 990 man page install path      : ${nmhman}
 991 backup prefix              : ${backup_prefix}
 992 transport system           : ${MTS}
 993 file locking type          : ${LOCKTYPE}
 994 default smtp servers       : ${smtpservers}
 995 default editor             : ${editorpath}
 996 default pager              : ${pagerpath}
 997 email address masquerading : ${masquerade}
 998 pop is enabled             : ${pop_kinds}
 999 SASL support               : ${sasl_support}"
1000 echo ""