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 AC_INIT(h/nmh.h)
   8 AC_CONFIG_HEADER(config.h)
   9
  10 AC_CANONICAL_SYSTEM
  11
  12 dnl ---------------------
  13 dnl define a macro or two
  14 dnl ---------------------
  15
  16 AC_DEFUN(NMH_PROG_GNU_LIBTOOL, [
  17 if test -n "$LIBTOOL" ; then
  18   tmptest=`$LIBTOOL --version 2>&1 | grep GNU`
  19   if test x"$tmptest" != x  ; then
  20     GNU_LIBTOOL=1
  21     AC_SUBST(GNU_LIBTOOL)dnl
  22   fi
  23 fi
  24 ] )
  25
  26
  27 dnl What version of nmh are we building?
  28 VERSION=`sed -e 's/nmh-//' ${srcdir}/VERSION`
  29 echo "configuring for nmh-$VERSION"
  30 AC_SUBST(VERSION)dnl
  31
  32 dnl What date of nmh are we building?
  33 DATE=`cat ${srcdir}/DATE`
  34 echo "configuring for nmh dated $DATE"
  35 AC_SUBST(DATE)dnl
  36
  37 dnl --------------------------
  38 dnl CHECK COMMAND LINE OPTIONS
  39 dnl --------------------------
  40
  41 dnl Do you want client-side support for apop?
  42 AC_ARG_ENABLE(apop,
  43 [  --enable-apop           enable client-side support for POP3 and APOP])
  44 if test x"$enable_apop" = x"yes"; then
  45   AC_DEFINE(APOP)dnl
  46   APOPLIB=md5.o
  47   enable_pop=yes
  48 fi
  49 AC_SUBST(APOPLIB)dnl
  50
  51 dnl Do you want to debug nmh?
  52 AC_ARG_ENABLE(debug,
  53 [  --enable-debug          enable nmh code debugging])
  54 dnl The old redundant --enable-nmh-debug is deprecated and undocumented.
  55 if test x"$enable_nmh_debug" = x"yes"; then
  56   enable_debug=yes
  57 fi
  58
  59 dnl Allow users to send email from addresses other than their default?
  60 AC_ARG_ENABLE(masquerade,
  61   [  --enable-masquerade[='draft_from mmailid username_extension']
  62                           enable up to 3 types of address masquerading [none]],
  63   [if test x"$enable_masquerade" = x"yes"; then
  64     masquerade="draft_from mmailid username_extension"
  65   else
  66     masquerade="$enable_masquerade"
  67   fi])
  68 AC_SUBST(masquerade)dnl
  69
  70 dnl Do you want mhe support?
  71 AC_ARG_ENABLE(mhe,
  72 [  --enable-mhe            enable mhe support (DEFAULT)])
  73
  74 dnl mhe support is on by default, so define it unless --disable-mhe or the
  75 dnl deprecated, undocumented --disable-nmh-mhe are specified.
  76 if test x"$enable_mhe" != x"no" -a x"$enable_nmh_mhe" != x"no"; then
  77   AC_DEFINE(MHE)dnl
  78 fi
  79
  80 dnl Do you want client-side support for pop?
  81 AC_ARG_ENABLE(pop,
  82 [  --enable-pop            enable client-side support for plain POP3])
  83 dnl The old redundant --enable-nmh-pop is deprecated and undocumented.
  84 if test x"$enable_nmh_pop" = x"yes"; then
  85   enable_pop=yes
  86 fi
  87
  88 dnl Do you want client-side support for using SASL for authentication?
  89 dnl Note that this code will be enabled for both POP and SMTP
  90 AC_ARG_WITH(cyrus-sasl,
  91 [  --with-cyrus-sasl=<dir> Specify location of Cyrus SASL library for auth])
  92 if test x"$with_cyrus_sasl" != x -a x"$with_cyrus_sasl" != x"no"; then
  93   AC_DEFINE(CYRUS_SASL)dnl
  94   sasl_support=yes
  95 else
  96   sasl_support=no
  97 fi
  98
  99 dnl What should be the default editor?
 100 AC_ARG_WITH(editor,
 101 [  --with-editor=EDITOR    specify the default editor])
 102
 103 if test -n "$with_editor"; then
 104   editorpath="$with_editor"
 105 fi
 106
 107 dnl Set the backup prefix
 108 AC_ARG_WITH([hash-backup],
 109   [  --with-hash-backup      use # as the backup prefix (default: ,)])
 110 if test x"$with_hash_backup" != x -a x"$with_hash_backup" != x"no"; then
 111   backup_prefix="#"
 112 else
 113   backup_prefix=","
 114 fi
 115 AC_DEFINE_UNQUOTED(BACKUP_PREFIX, "$backup_prefix")dnl
 116
 117 dnl Do you want support for hesiod
 118 AC_ARG_WITH(hesiod,
 119 [  --with-hesiod=PREFIX    specify location of Hesiod])
 120 if test x"$with_hesiod" != x -a x"$with_hesiod" != x"no"; then
 121   AC_DEFINE(HESIOD)dnl
 122 fi
 123
 124 dnl Do you want client-side support for kpop
 125 AC_ARG_WITH(krb4,
 126 [  --with-krb4=PREFIX      specify location of Kerberos V4 for KPOP support])
 127 if test x"$with_krb4" != x -a x"$with_krb4" != x"no"; then
 128   enable_pop=yes
 129   AC_DEFINE(KPOP)dnl
 130   AC_DEFINE(KPOP_PRINCIPAL, "pop")dnl
 131 fi
 132
 133 dnl After we know if we're including apop and kpop support, do pop stuff
 134 if test x"$enable_pop" = x"yes"; then
 135   AC_DEFINE(POP)dnl
 136   POPLIB=popsbr.o
 137   POPSED='/^%nmhbeginpop%/d;/^%nmhendpop%/d'
 138 else
 139   POPSED='/^%nmhbeginpop%/,/^%nmhendpop%/d'
 140 fi
 141 AC_SUBST(POPLIB)dnl
 142 AC_SUBST(POPSED)dnl
 143
 144 dnl What method of locking to use?
 145 AC_ARG_WITH(locking,
 146 [  --with-locking=LOCKTYPE specify the file locking method
 147                           (one of dot, fcntl, flock, lockf)])
 148
 149 if test x"$with_locking" = x"dot"; then
 150   LOCKTYPE="dot"
 151   AC_DEFINE(DOT_LOCKING)dnl
 152 elif test x"$with_locking" = x"flock"; then
 153   LOCKTYPE="flock"
 154   AC_DEFINE(FLOCK_LOCKING)dnl
 155 elif test x"$with_locking" = x"lockf"; then
 156   LOCKTYPE="lockf"
 157   AC_DEFINE(LOCKF_LOCKING)dnl
 158 elif test x"$with_locking" = x"fcntl"; then
 159   LOCKTYPE="fcntl"
 160   AC_DEFINE(FCNTL_LOCKING)dnl
 161 else
 162   LOCKTYPE="dot"
 163   AC_DEFINE(DOT_LOCKING)dnl
 164 fi
 165
 166 dnl What method of posting should post use?
 167 AC_ARG_WITH(mts,
 168 [  --with-mts=MTS          specify the default mail transport agent/service])
 169
 170 if test x"$with_mts" = x"smtp"; then
 171   MTS="smtp"
 172 elif test x"$with_mts" = x"sendmail"; then
 173   MTS="sendmail"
 174 else
 175   MTS="smtp"
 176 fi
 177 AC_SUBST(MTS)dnl
 178
 179 dnl Both the smtp and sendmail mail transport services use the smtp code
 180 AC_DEFINE(SMTPMTS)dnl
 181
 182 dnl What should be the default pager?
 183 AC_ARG_WITH(pager,
 184 [  --with-pager=PAGER      specify the default pager])
 185
 186 if test -n "$with_pager"; then
 187   pagerpath="$with_pager"
 188 fi
 189
 190 dnl What should be the default mail server(s)?
 191 AC_ARG_WITH(smtpservers,
 192 [  --with-smtpservers='SMTPSERVER1[ SMTPSERVER2...]'
 193                           specify the default SMTP server(s) [localhost]])
 194 if test -n "$with_smtpservers"; then
 195   smtpservers="$with_smtpservers"
 196 else
 197   smtpservers="localhost"
 198 fi
 199 AC_SUBST(smtpservers)dnl
 200
 201 dnl ----------------------------------------------------
 202 dnl Default location is /usr/local/nmh/{bin,etc,lib,man}
 203 dnl ----------------------------------------------------
 204 AC_PREFIX_DEFAULT(/usr/local/nmh)
 205
 206 dnl ------------------
 207 dnl CHECK THE COMPILER
 208 dnl ------------------
 209 dnl We want these before the checks,
 210 dnl so the checks can modify their values.
 211 test -z "$CFLAGS" && CFLAGS= auto_cflags=1
 212 if test x"$enable_debug" = x"yes"; then
 213   test -z "$LDFLAGS" && LDFLAGS=-g
 214 fi
 215
 216 AC_PROG_CC
 217
 218 dnl if the user hasn't specified CFLAGS, then
 219 dnl   if compiler is gcc, then
 220 dnl     use -O2 and some warning flags
 221 dnl   else use -O
 222 if test -n "$auto_cflags"; then
 223   if test x"$enable_debug" = x"yes"; then
 224     if test -n "$GCC"; then
 225       test -z "$CFLAGS" && CFLAGS="-Wall -g" || CFLAGS="$CFLAGS -Wall -g"
 226     else
 227       test -z "$CFLAGS" && CFLAGS=-g || CFLAGS="$CFLAGS -g"
 228     fi
 229   else
 230     if test -z "$LDFLAGS"; then
 231       case "$build_os" in
 232         darwin*)
 233           LDFLAGS=
 234           ;;
 235         *)
 236           LDFLAGS=-s
 237           ;;
 238       esac
 239     fi
 240     if test -n "$GCC"; then
 241       test -z "$CFLAGS" && CFLAGS="-Wall -O2" || CFLAGS="$CFLAGS -Wall -O2"
 242     else
 243       test -z "$CFLAGS" && CFLAGS=-O  || CFLAGS="$CFLAGS -O"
 244     fi
 245   fi
 246 fi
 247
 248 AC_C_CONST              dnl Does compiler support `const'.
 249
 250 dnl ------------------
 251 dnl CHECK FOR PROGRAMS
 252 dnl ------------------
 253 AC_PROG_MAKE_SET        dnl Does make define $MAKE
 254 AC_PROG_INSTALL         dnl Check for BSD compatible `install'
 255 AC_PROG_RANLIB          dnl Check for `ranlib'
 256 AC_PROG_AWK             dnl Check for mawk,gawk,nawk, then awk
 257 AC_PROG_LEX             dnl Check for lex/flex
 258
 259 dnl Look for `cut'
 260 pathtmp=/usr/bin:/bin:/usr/local/bin:/usr/xpg4/bin:/usr/ucb
 261 AC_PATH_PROG(cutpath, cut, no, [$pathtmp])
 262
 263 dnl ----------------------------------------------
 264 dnl check for lclint, and lint if it doesn't exist
 265 dnl ----------------------------------------------
 266 AC_CHECK_PROG(linttmp1, lclint, lclint, no)dnl
 267 if test x$ac_cv_prog_linttmp1 != xno ; then
 268   LINT=$ac_cv_prog_linttmp1
 269   LINTFLAGS="-weak +posixlib -macrovarprefixexclude"
 270 else
 271   AC_CHECK_PROG(linttmp2, lint, lint, no)dnl
 272   if test x$ac_cv_prog_linttmp2 != xno ; then
 273     LINT=$ac_cv_prog_linttmp2
 274     LINTFLAGS=""
 275   else
 276     LINT="echo 'No lint program found'"
 277     LINTFLAGS=""
 278   fi
 279 fi
 280 AC_SUBST(LINT)dnl
 281 AC_SUBST(LINTFLAGS)dnl
 282
 283 dnl try to figure out which one we've got
 284 AC_CHECK_PROG(LIBTOOL, libtool, libtool, , [$pathtmp])
 285 NMH_PROG_GNU_LIBTOOL
 286
 287 dnl Check for lorder and tsort commands
 288 AC_CHECK_PROG(LORDER, lorder, lorder, no)dnl
 289 AC_CHECK_PROG(TSORT, tsort, tsort, no)dnl
 290
 291 dnl If either doesn't exist, replace them with echo and cat
 292 if test x$ac_cv_prog_LORDER != xlorder -o x$ac_cv_prog_TSORT != xtsort; then
 293   LORDER=echo
 294   TSORT=cat
 295   AC_SUBST(LORDER)dnl
 296   AC_SUBST(TSORT)dnl
 297 dnl Mac OS X has lorder, but sh is too broken for it to work
 298 dnl elif test -z "`lorder config/config.c 2>&1 | grep config/config.c`" ; then
 299 dnl   LORDER=echo
 300 dnl   TSORT=cat
 301 dnl   AC_SUBST(LORDER)dnl
 302 dnl   AC_SUBST(TSORT)dnl
 303 fi
 304
 305 dnl Check whether tsort can deal with loops
 306 AC_CACHE_CHECK(whether tsort can deal with loops, nmh_cv_tsort_loop,
 307   [if test -z "`echo a b b a | tsort 2>/dev/null | grep a`" ; then
 308     nmh_cv_tsort_loop=no
 309   else
 310     nmh_cv_tsort_loop=yes
 311   fi])
 312 if test x$nmh_cv_tsort_loop = xno ; then
 313   LORDER=echo
 314   TSORT=cat
 315   AC_SUBST(LORDER)dnl
 316   AC_SUBST(TSORT)dnl
 317 fi
 318
 319 dnl Look for `ls'
 320 pathtmp=/usr/bin:/bin:/usr/local/bin:/usr/xpg4/bin:/usr/ucb
 321 AC_PATH_PROG(lspath, ls, no, [$pathtmp])
 322
 323 dnl See how we get ls to display the owner and the group
 324 if test "$lspath" != "no"; then
 325   AC_CACHE_CHECK(how to get ls to show us the group ownership of a file,
 326                  nmh_cv_ls_grpopt,
 327   [if test x"`$lspath -dl / | $AWK '{print $9}'`" = x"/"; then
 328     dnl There were 9 parameters, so unless this is a really bizarre, nonstandard
 329     dnl ls, it would seem -l gave us both the user and group.  On this type of
 330     dnl ls, -g makes _only_ the group be displayed (and not the user).
 331     nmh_cv_ls_grpopt="-l"
 332   else
 333     dnl Looks like -l only gave us the user, so we need -g to get the group too.
 334     nmh_cv_ls_grpopt="-lg"
 335   fi])
 336 fi
 337
 338 dnl Look for `more'
 339 pathtmp=/usr/bin:/bin:/usr/ucb:/usr/local/bin
 340 AC_PATH_PROG(morepath, more, no, [$pathtmp])
 341
 342 dnl If pager is not specified yet,
 343 dnl then use `more' as the default.
 344 if test -z "$pagerpath"; then
 345   pagerpath="$morepath"
 346 fi
 347 AC_SUBST(pagerpath)dnl
 348
 349 dnl Look for `sendmail'
 350 pathtmp=/usr/lib:/usr/sbin:/usr/etc:/usr/ucblib:/usr/bin:/bin
 351 AC_PATH_PROG(sendmailpath, sendmail, no, [$pathtmp])
 352
 353 dnl Look for `vi'
 354 pathtmp=/usr/bin:/bin:/usr/ucb:/usr/local/bin
 355 AC_PATH_PROG(vipath, vi, no, [$pathtmp])
 356
 357 dnl If editor is not specified yet,
 358 dnl then use `vi' as the default.
 359 if test -z "$editorpath"; then
 360   editorpath="$vipath"
 361 fi
 362 AC_SUBST(editorpath)dnl
 363
 364 dnl Check for broken vi
 365 AC_CACHE_CHECK(for broken vi, nmh_cv_attvibug,
 366 [if echo 'r /nonexist-file
 367 q' | ex > /dev/null
 368 then
 369         nmh_cv_attvibug=no
 370 else
 371         nmh_cv_attvibug=yes
 372 fi])
 373
 374 if test "$nmh_cv_attvibug" = yes; then
 375   AC_DEFINE(ATTVIBUG)dnl
 376 fi
 377
 378 dnl ----------------------------------------------------------
 379 dnl FIND MAIL SPOOL AND SEE IF WE NEED TO MAKE inc SETGID MAIL
 380 dnl ----------------------------------------------------------
 381 AC_CACHE_CHECK(where mail spool is located, nmh_cv_mailspool,
 382 [for mailspool in /var/mail        dnl
 383                   /var/spool/mail  dnl
 384                   /usr/spool/mail  dnl
 385                   /dev/null;       dnl Just in case we fall through
 386 do
 387   test -d $mailspool && break
 388 done
 389 nmh_cv_mailspool=$mailspool
 390 ])
 391 mailspool=$nmh_cv_mailspool
 392 AC_SUBST(mailspool)dnl
 393
 394 dnl See whether the mail spool directory is world-writable.
 395 if test "$lspath" != "no" -a "$cutpath" != "no"; then
 396   AC_CACHE_CHECK(whether the mail spool is world-writable,
 397                  nmh_cv_mailspool_world_writable,
 398   [if test "`$lspath -dlL $mailspool | $cutpath -c9`" = "-"; then
 399     nmh_cv_mailspool_world_writable=no
 400   else
 401     nmh_cv_mailspool_world_writable=yes
 402   fi])
 403 fi
 404
 405 dnl Also, check for liblockfile (as found on Debian systems)
 406 AC_CHECK_HEADER(lockfile.h, AC_CHECK_LIB(lockfile, lockfile_create) )
 407
 408 dnl and whether its companion program dotlockfile is setgid
 409 AC_PATH_PROG(dotlockfilepath, dotlockfile, no)
 410 if test "$ac_cv_lib_lockfile_lockfile_create" != "no" ; then
 411   if test "$ac_cv_path_dotlockfilepath" != "no" ; then
 412     AC_CACHE_CHECK(whether dotlockfile is setgid, nmh_cv_dotlockfile_setgid,
 413     [ if test -g "$ac_cv_path_dotlockfilepath" ; then
 414         nmh_cv_dotlockfile_setgid=yes
 415       else
 416         nmh_cv_dotlockfile_setgid=no
 417       fi])
 418   fi
 419 fi
 420
 421 dnl If mailspool is not world-writable and dotlockfile is not setgid,
 422 dnl we need to #define MAILGROUP to 1 and make inc setgid.
 423 if test x"$nmh_cv_mailspool_world_writable" = x"no" -a x"$nmh_cv_dotlockfile_setgid" != x"yes" ; then
 424   dnl do we really need both of these?
 425   AC_DEFINE(MAILGROUP)dnl
 426   SETGID_MAIL=1
 427 fi
 428 AC_SUBST(SETGID_MAIL)dnl
 429
 430 dnl Use ls to see which group owns the mail spool directory.
 431 AC_CACHE_CHECK(what group owns the mail spool, nmh_cv_ls_mail_grp,
 432 [nmh_cv_ls_mail_grp=`$lspath -dL $nmh_cv_ls_grpopt $mailspool|$AWK '{print $4}'`
 433 ])
 434 MAIL_SPOOL_GRP=$nmh_cv_ls_mail_grp
 435 AC_SUBST(MAIL_SPOOL_GRP)dnl
 436
 437 dnl ------------------
 438 dnl CHECK HEADER FILES
 439 dnl ------------------
 440 AC_HEADER_DIRENT
 441 AC_HEADER_STDC
 442 AC_HEADER_TIME
 443 AC_HEADER_SYS_WAIT
 444 AC_HEADER_STAT
 445 AC_CHECK_HEADERS(string.h memory.h stdlib.h unistd.h errno.h fcntl.h \
 446                  limits.h crypt.h termcap.h termio.h termios.h locale.h \
 447                  langinfo.h netdb.h sys/param.h sys/time.h sys/utsname.h \
 448                  iconv.h arpa/inet.h arpa/ftp.h)
 449
 450
 451 AC_CACHE_CHECK(POSIX termios, nmh_cv_sys_posix_termios,
 452 [AC_TRY_LINK([#include <sys/types.h>
 453 #include <unistd.h>
 454 #include <termios.h>],
 455 [/* SunOS 4.0.3 has termios.h but not the library calls.  */
 456 tcgetattr(0, 0);],
 457   nmh_cv_sys_posix_termios=yes, nmh_cv_sys_posix_termios=no)])
 458
 459 if test $nmh_cv_sys_posix_termios = yes; then
 460   AC_CACHE_CHECK(TIOCGWINSZ in termios.h,
 461   nmh_cv_header_termios_h_tiocgwinsz,
 462   [AC_TRY_LINK([#include <sys/types.h>
 463 #include <termios.h>],
 464   [int x = TIOCGWINSZ;],
 465   nmh_cv_header_termios_h_tiocgwinsz=yes,
 466   nmh_cv_header_termios_h_tiocgwinsz=no)])
 467 else
 468   nmh_cv_header_termios_h_tiocgwinsz=no
 469 fi
 470
 471 if test $nmh_cv_header_termios_h_tiocgwinsz = no; then
 472   AC_CACHE_CHECK(TIOCGWINSZ in sys/ioctl.h,
 473   nmh_cv_header_sys_ioctl_h_tiocgwinsz,
 474   [AC_TRY_LINK([#include <sys/types.h>
 475 #include <sys/ioctl.h>],
 476   [int x = TIOCGWINSZ;],
 477   nmh_cv_header_sys_ioctl_h_tiocgwinsz=yes,
 478   nmh_cv_header_sys_ioctl_h_tiocgwinsz=no)])
 479   if test $nmh_cv_header_sys_ioctl_h_tiocgwinsz = yes; then
 480     AC_DEFINE(GWINSZ_IN_SYS_IOCTL)dnl
 481   fi
 482 fi
 483
 484 dnl
 485 dnl Checks for _IO_write_ptr. A Linuxism used by nmh on linux. We
 486 dnl really use a whole set of them, but this check should be
 487 dnl sufficient.
 488 dnl
 489 AC_CHECK_HEADER(libio.h, [
 490   AC_EGREP_HEADER(_IO_write_ptr, libio.h, [
 491     AC_DEFINE(LINUX_STDIO) ]) ])
 492
 493 AC_CHECK_HEADER([sys/ptem.h], AC_DEFINE(WINSIZE_IN_PTEM))
 494
 495 dnl ---------------
 496 dnl CHECK FUNCTIONS
 497 dnl ---------------
 498 AC_FUNC_VFORK
 499 AC_CHECK_LIB(mkstemp,mkstemp)
 500 AC_CHECK_FUNCS(waitpid wait3 sigaction sigprocmask sigblock sigsetmask \
 501                sighold sigrelse writev lstat uname tzset killpg mkstemp \
 502                sethostent getutent nl_langinfo)
 503
 504 dnl solaris screws this up
 505 AC_CHECK_FUNC(gethostbyname, [AC_DEFINE(HAVE_GETHOSTBYNAME)],
 506   AC_CHECK_LIB(nsl, gethostbyname, [AC_DEFINE(HAVE_GETHOSTBYNAME)] ) )
 507
 508 dnl sigsetjmp may be a macro
 509 AC_MSG_CHECKING(for sigsetjmp)
 510 AC_TRY_LINK([#include <setjmp.h>], [sigsetjmp((void *)0, 0);],
 511         [AC_DEFINE(HAVE_SIGSETJMP) AC_MSG_RESULT(yes)], AC_MSG_RESULT(no))
 512
 513 AC_REPLACE_FUNCS(snprintf strerror strdup)
 514
 515 dnl Look for the initgroups() declaration.  On AIX 4.[13], Solaris 4.1.3, and
 516 dnl ULTRIX 4.2A the function is defined in libc but there's no declaration in
 517 dnl any system header.
 518 dnl
 519 dnl On Solaris 2.[456], the declaration is in <grp.h>.  On HP-UX 9-11 and
 520 dnl (reportedly) FreeBSD 3.[23], it's in <unistd.h>.  Any other locations we
 521 dnl need to check?
 522 AC_EGREP_HEADER(initgroups, grp.h, AC_DEFINE(INITGROUPS_HEADER, <grp.h>),
 523                 AC_EGREP_HEADER(initgroups, unistd.h,
 524                                 AC_DEFINE(INITGROUPS_HEADER, <unistd.h>)))
 525
 526 dnl On AIX 4.1, snprintf() is defined in libc.a but there's no prototype in
 527 dnl <stdio.h> or elsewhere.  Apparently it's not officially supported (though it
 528 dnl seems to work perfectly and IBM apparently uses it in internal code).
 529 dnl Anyhow, if we omit our own snprintf() and vsnprintf() prototypes when we
 530 dnl HAVE_SNPRINTF, we get a billion warnings at compile time.  Use the C
 531 dnl preprocessor to preprocess stdio.h and make sure that there's actually a
 532 dnl prototype.
 533 AC_EGREP_HEADER(snprintf, stdio.h, AC_DEFINE(HAVE_SNPRINTF_PROTOTYPE))
 534
 535 dnl -------------------
 536 dnl CHECK FOR LIBRARIES
 537 dnl -------------------
 538 dnl Check location of modf
 539 AC_CHECK_FUNC(modf, , AC_CHECK_LIB(m, modf))
 540
 541 dnl Checks for network libraries (nsl, socket)
 542 AC_CHECK_NETLIBS
 543
 544 termcap_curses_order="termcap curses ncurses"
 545 for lib in $termcap_curses_order; do
 546   AC_CHECK_LIB(${lib}, tgetent, [TERMLIB="-l$lib"; break])
 547 done
 548 AC_SUBST(TERMLIB)dnl
 549
 550 dnl ---------------
 551 dnl CHECK FOR ICONV
 552 dnl ---------------
 553
 554 dnl Find iconv. It may be in libiconv and may be iconv() or libiconv()
 555 if test "x$ac_cv_header_iconv_h" = "xyes"; then
 556   AC_CHECK_FUNC(iconv, ac_found_iconv=yes, ac_found_iconv=no)
 557   if test "x$ac_found_iconv" = "xno"; then
 558     AC_CHECK_LIB(iconv, iconv, ac_found_iconv=yes)
 559     if test "x$ac_found_iconv" = "xno"; then
 560       AC_CHECK_LIB(iconv, libiconv, ac_found_iconv=yes)
 561     fi
 562     if test "x$ac_found_iconv" != "xno"; then
 563       LIBS="-liconv $LIBS"
 564     fi
 565   fi
 566 fi
 567 if test "x$ac_found_iconv" = xyes; then
 568   AC_DEFINE(HAVE_ICONV, 1, [Define if you have the iconv() function.])
 569 fi
 570
 571 dnl Check if iconv uses const in prototype declaration
 572 if test "x$ac_found_iconv" = "xyes"; then
 573   AC_CACHE_CHECK(for iconv declaration, ac_cv_iconv_const,
 574     [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <stdlib.h>
 575         #include <iconv.h>]],
 576         [[#ifdef __cplusplus
 577           "C"
 578           #endif
 579           #if defined(__STDC__) || defined(__cplusplus)
 580           size_t iconv (iconv_t cd, char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);
 581           #else
 582           size_t iconv();
 583           #endif]])],
 584       [ac_cv_iconv_const=],
 585       [ac_cv_iconv_const=const])])
 586   AC_DEFINE_UNQUOTED([ICONV_CONST], $ac_cv_iconv_const,
 587     [Define as const if the declaration of iconv() needs const.])
 588 fi
 589
 590 dnl --------------
 591 dnl CHECK FOR NDBM
 592 dnl --------------
 593 dnl Checks for ndbm
 594 AC_CHECK_FUNC(dbm_open, ,
 595   AC_CHECK_LIB(ndbm, dbm_open, ,
 596     AC_CHECK_LIB(dbm, dbm_open, ,
 597       AC_CHECK_LIB(db1, dbm_open, ,
 598         AC_CHECK_LIB(gdbm, dbm_open, ,
 599           AC_CHECK_LIB(db, __db_ndbm_open))))))
 600
 601 dnl ----------------
 602 dnl CHECK FOR NDBM.H
 603 dnl ----------------
 604
 605 AC_CHECK_HEADERS(db1/ndbm.h gdbm/ndbm.h db.h, break, )
 606
 607 dnl ----------------
 608 dnl CHECK FOR HESIOD
 609 dnl ----------------
 610 if test x"$with_hesiod" != x -a x"$with_hesiod" != x"no"; then
 611   if test x"$with_hesiod" != x"yes"; then
 612     HESIOD_INCLUDES="-I$with_hesiod/include"
 613     HESIOD_LIBS="-L$with_hesiod/lib"
 614   fi
 615   AC_CHECK_FUNC(res_send,
 616         [AC_CHECK_LIB(hesiod, hes_resolve,
 617                 [HESIOD_LIBS="$HESIOD_LIBS -lhesiod"],
 618                 [AC_MSG_ERROR(Hesiod library not found)],
 619                 $HESIOD_LIBS)],
 620         [AC_CHECK_LIB(hesiod, hes_resolve,
 621                 [HESIOD_LIBS="$HESIOD_LIBS -lhesiod -lresolv"],
 622                 [AC_MSG_ERROR(Hesiod library not found)],
 623                 $HESIOD_LIBS -lresolv)])
 624
 625 fi
 626 AC_SUBST(HESIOD_INCLUDES)dnl
 627 AC_SUBST(HESIOD_LIBS)dnl
 628
 629 dnl ----------------------------------
 630 dnl CHECK FOR KRB4 (Kerberos4 support)
 631 dnl ----------------------------------
 632 if test x"$with_krb4" != x -a x"$with_krb4" != x"no"; then
 633   if test x"$with_krb4" != x"yes"; then
 634     KRB4_INCLUDES="-I$with_krb4/include"
 635     if test -d "$with_krb4/include/kerberosIV"; then
 636       KRB4_INCLUDES="$KRB4_INCLUDES -I$with_krb4/include/kerberosIV"
 637     fi
 638     KRB4_LIBS="-L$with_krb4/lib"
 639   elif test -d /usr/include/kerberosIV; then
 640     KRB4_INCLUDES="-I/usr/include/kerberosIV"
 641   fi
 642 dnl First, check if we have -lk5crypto, since that means we have a recent krb5
 643
 644   AC_CHECK_LIB(k5crypto, krb5_encrypt,
 645         [AC_CHECK_LIB(krb4, krb_rd_req,
 646                 [KRB4_LIBS="$KRB4_LIBS -lkrb4 -ldes425 -lkrb5 -lk5crypto -lcom_err"],
 647                 [AC_MSG_ERROR(Kerberos 4 compatibility libraries not found)],
 648                 $KRB4_LIBS -ldes425 -lkrb5 -lk5crypto -lcom_err)],
 649
 650         [AC_CHECK_LIB(krb4, krb_rd_req,
 651             [KRB4_LIBS="$KRB4_LIBS -lkrb4 -ldes425 -lkrb5 -lcrypto -lcom_err"],
 652             [AC_CHECK_LIB(krb, krb_rd_req,
 653               [KRB4_LIBS="$KRB4_LIBS -lkrb -ldes"],
 654               [AC_MSG_ERROR(Kerberos 4 libraries not found)],
 655               $KRB4_LIBS -ldes)],
 656             $KRB4_LIBS -ldes425 -lkrb5 -lcrypto -lcom_err)],
 657         $KRB4_LIBS)
 658
 659 fi
 660 AC_SUBST(KRB4_INCLUDES)dnl
 661 AC_SUBST(KRB4_LIBS)dnl
 662
 663 dnl --------------------
 664 dnl CHECK FOR CYRUS SASL
 665 dnl --------------------
 666 if test x"$with_cyrus_sasl" != x -a x"$with_cyrus_sasl" != x"no"; then
 667   if test x"$with_cyrus_sasl" != x"yes"; then
 668     SASL_INCLUDES="-I$with_cyrus_sasl/include"
 669     SASL_LIBS="-L$with_cyrus_sasl/lib"
 670
 671     dnl Do OS-specific hardcoding of SASL shared library path into executables,
 672     dnl so user isn't forced to set environment variables like Solaris'
 673     dnl LD_LIBRARY_PATH.
 674     case "$target_os" in
 675       solaris*)
 676         SASL_LIBS="$SASL_LIBS -R$with_cyrus_sasl/lib"
 677         ;;
 678     esac
 679   fi
 680   save_LDFLAGS="$LDFLAGS"
 681   LDFLAGS="$LDFLAGS $SASL_LIBS"
 682   AC_CHECK_LIB(sasl2, sasl_client_new,
 683     [SASL_LIBS="$SASL_LIBS -lsasl2"],
 684     [AC_MSG_ERROR(Cyrus SASL library not found)])
 685   LDFLAGS="$save_LDFLAGS"
 686 fi
 687 AC_SUBST(SASL_INCLUDES)dnl
 688 AC_SUBST(SASL_LIBS)dnl
 689
 690 dnl ---------------------
 691 dnl CHECK TERMCAP LIBRARY
 692 dnl ---------------------
 693
 694 dnl Add the termcap library, so that the following configure
 695 dnl tests will find it when it tries to link test programs.
 696 nmh_save_LIBS="$LIBS"
 697 LIBS="$TERMLIB $LIBS"
 698
 699 dnl Checks for external variable ospeed in the termcap library.
 700 AC_CACHE_CHECK(if an include file defines ospeed,
 701 nmh_cv_decl_ospeed_include_defines,
 702 [AC_TRY_LINK(
 703 [#include <sys/types.h>
 704 #if HAVE_TERMIOS_H
 705 #include <termios.h>
 706 #endif
 707 #if HAVE_TERMCAP_H
 708 #include <termcap.h>
 709 #endif], [ospeed = 0;],
 710 nmh_cv_decl_ospeed_include_defines=yes,
 711 nmh_cv_decl_ospeed_include_defines=no)])
 712
 713 if test $nmh_cv_decl_ospeed_include_defines = no; then
 714   AC_CACHE_CHECK(if you must define ospeed,
 715   nmh_cv_decl_ospeed_must_define,
 716   [AC_TRY_LINK( ,[extern short ospeed; ospeed = 0;],
 717   nmh_cv_decl_ospeed_must_define=yes,
 718   nmh_cv_decl_ospeed_must_define=no)])
 719 fi
 720
 721 if test $nmh_cv_decl_ospeed_include_defines = yes; then
 722   AC_DEFINE(HAVE_OSPEED)dnl
 723 elif test $nmh_cv_decl_ospeed_must_define = yes; then
 724   AC_DEFINE(HAVE_OSPEED)
 725   AC_DEFINE(MUST_DEFINE_OSPEED)
 726 fi
 727
 728 dnl dnl Checks if tgetent accepts NULL and will
 729 dnl dnl allocate its own termcap buffer.
 730 dnl AC_CACHE_CHECK(if tgetent accepts NULL,
 731 dnl nmh_cv_func_tgetent_accepts_null,
 732 dnl [AC_TRY_RUN([main(){int i = tgetent((char*)0,"vt100");exit(!i || i == -1);}],
 733 dnl   nmh_cv_func_tgetent_accepts_null=yes,
 734 dnl   nmh_cv_func_tgetent_accepts_null=no,
 735 dnl   nmh_cv_func_tgetent_accepts_null=no)])
 736 dnl if test $nmh_cv_func_tgetent_accepts_null = yes; then
 737 dnl   AC_DEFINE(TGETENT_ACCEPTS_NULL)
 738 dnl fi
 739
 740 dnl Now put the libraries back to what it was before we
 741 dnl starting checking the termcap library.
 742 LIBS="$nmh_save_LIBS"
 743
 744 dnl --------------
 745 dnl CHECK TYPEDEFS
 746 dnl --------------
 747 AC_TYPE_SIGNAL
 748 AC_TYPE_PID_T
 749 AC_TYPE_OFF_T
 750 AC_TYPE_UID_T
 751 AC_TYPE_MODE_T
 752 AC_TYPE_SIZE_T
 753
 754 dnl Check for sigset_t.  Currently I'm looking in
 755 dnl <sys/types.h> and <signal.h>.  Others might need
 756 dnl to be added.
 757 AC_CACHE_CHECK(for sigset_t, nmh_cv_type_sigset_t,
 758 [AC_TRY_COMPILE(
 759 [#include <sys/types.h>
 760 #include <signal.h>], [sigset_t tempsigset;],
 761   nmh_cv_type_sigset_t=yes, nmh_cv_type_sigset_t=no)])
 762 if test $nmh_cv_type_sigset_t = no; then
 763   AC_DEFINE(sigset_t, unsigned int)
 764 fi
 765
 766 dnl ----------------
 767 dnl CHECK STRUCTURES
 768 dnl ----------------
 769 AC_STRUCT_ST_BLKSIZE
 770
 771 AC_CACHE_CHECK(for tm_gmtoff in struct tm, nmh_cv_struct_tm_gmtoff,
 772 [AC_TRY_COMPILE(
 773 [#ifdef TIME_WITH_SYS_TIME
 774 # include <sys/time.h>
 775 # include <time.h>
 776 #else
 777 # ifdef TM_IN_SYS_TIME
 778 #  include <sys/time.h>
 779 # else
 780 #  include <time.h>
 781 # endif
 782 #endif],
 783 [struct tm temptm; temptm.tm_gmtoff = 0;],
 784   nmh_cv_struct_tm_gmtoff=yes, nmh_cv_struct_tm_gmtoff=no)])
 785 if test $nmh_cv_struct_tm_gmtoff = yes; then
 786   AC_DEFINE(HAVE_TM_GMTOFF)
 787 fi
 788
 789 dnl -------------
 790 dnl CHECK SIGNALS
 791 dnl -------------
 792 dnl What style of signal do you have (POSIX, BSD, or SYSV)?
 793 AC_MSG_CHECKING(what style of signals to use)
 794 if test $ac_cv_func_sigaction = yes -a $ac_cv_func_sigprocmask = yes; then
 795   signals_style=POSIX_SIGNALS
 796   AC_DEFINE(POSIX_SIGNALS)
 797   AC_DEFINE(RELIABLE_SIGNALS)
 798 elif test $ac_cv_func_sigblock = yes -a $ac_cv_func_sigsetmask = yes; then
 799   signals_style=BSD_SIGNALS
 800   AC_DEFINE(BSD_SIGNALS)
 801   AC_DEFINE(RELIABLE_SIGNALS)
 802 elif test $ac_cv_func_sighold = yes -a $ac_cv_func_sigrelse = yes; then
 803   signals_style=SYSV_SIGNALS
 804   AC_DEFINE(SYSV_SIGNALS)
 805 else
 806   signals_style=NO_SIGNAL_BLOCKING
 807   AC_DEFINE(NO_SIGNAL_BLOCKING)
 808 fi
 809
 810 AC_MSG_RESULT($signals_style)
 811
 812 dnl Where is <signal.h> located?  Needed as input for signames.awk
 813 AC_CACHE_CHECK(where signal.h is located, nmh_cv_path_signal_h,
 814 [for SIGNAL_H in /usr/include/bsd/sys/signal.h  dnl Next
 815                  /usr/include/asm/signal.h      dnl Linux 1.3.0 and above
 816                  /usr/include/asm/signum.h      dnl some versions of Linux/Alpha
 817                  /usr/include/linux/signal.h    dnl Linux up to 1.2.11
 818                  /usr/include/sys/signal.h      dnl Almost everybody else
 819                  /dev/null;                     dnl Just in case we fall through
 820 do
 821   test -f $SIGNAL_H && \
 822   grep '#[      ]*define[       ][      ]*SIG[0-9A-Z]*[         ]*[0-9][0-9]*' $SIGNAL_H > /dev/null && \
 823   break
 824 done
 825 nmh_cv_path_signal_h=$SIGNAL_H
 826 ])
 827 SIGNAL_H=$nmh_cv_path_signal_h
 828 AC_SUBST(SIGNAL_H)dnl
 829
 830 dnl ----------------
 831 dnl OS SPECIFIC DEFINES
 832 dnl ----------------
 833 case "$target_os" in
 834
 835   solaris2*)
 836     AC_DEFINE(SYS5)
 837     AC_DEFINE(SVR4)
 838     ;;
 839   irix*)
 840     AC_DEFINE(SYS5)
 841     AC_DEFINE(SVR4)
 842     ;;
 843   osf*)
 844     AC_DEFINE(SYS5)
 845     AC_DEFINE(SVR4)
 846     ;;
 847   aix*)
 848     AC_DEFINE(SYS5)
 849     AC_DEFINE(SVR4)
 850     ;;
 851   sunos4*)
 852     AC_DEFINE(BSD42)
 853     ;;
 854   freebsd*)
 855     AC_DEFINE(BSD42)
 856     AC_DEFINE(BSD44)
 857     ;;
 858   netbsd*)
 859     AC_DEFINE(BSD42)
 860     AC_DEFINE(BSD44)
 861     ;;
 862   openbsd*)
 863     AC_DEFINE(BSD42)
 864     AC_DEFINE(BSD44)
 865     ;;
 866   bsd/os*)
 867     AC_DEFINE(BSD42)
 868     AC_DEFINE(BSD44)
 869     ;;
 870   sco5*)
 871     AC_DEFINE(SYS5)
 872     AC_DEFINE(SCO_5_STDIO)
 873     ;;
 874 esac
 875
 876
 877 dnl ----------------
 878 dnl OUTPUT MAKEFILES
 879 dnl ----------------
 880 AC_OUTPUT(Makefile config/Makefile h/Makefile sbr/Makefile uip/Makefile \
 881           mts/Makefile mts/smtp/Makefile \
 882           etc/Makefile docs/Makefile man/Makefile, \
 883           [test -z "$CONFIG_HEADERS" || echo > stamp-h])
 884
 885 dnl Umm, what's the point of these assignments??  -- <dan-nmh@dilvish.speed.net>
 886 eval "nmhbin=${bindir}";         eval "nmhbin2=${nmhbin}"
 887 eval "nmhsysconf=${sysconfdir}"; eval "nmhsysconf2=${nmhsysconf}"
 888 eval "nmhlib=${libdir}";         eval "nmhlib2=${nmhlib}"
 889 eval "nmhman=${mandir}"
 890
 891 pop_kinds=no
 892 if test x"$enable_pop" = x"yes"; then
 893   pop_kinds="yes ("
 894
 895   if test x"$enable_apop" = x"yes"; then
 896     pop_kinds="${pop_kinds}APOP "
 897   fi
 898
 899   if test x"$with_krb4" != x -a x"$with_krb4" != x"no"; then
 900     pop_kinds="${pop_kinds}KPOP "
 901   fi
 902
 903   pop_kinds="${pop_kinds}POP3)"
 904 fi
 905
 906 echo "
 907 nmh configuration
 908 -----------------
 909 nmh version                : ${VERSION}
 910 target os                  : ${target}
 911 compiler                   : ${CC}
 912 compiler flags             : ${CFLAGS}
 913 linker flags               : ${LDFLAGS}
 914 source code location       : ${srcdir}
 915 binary install path        : ${nmhbin2}
 916 libary install path        : ${nmhlib2}
 917 config files install path  : ${nmhsysconf2}
 918 man page install path      : ${nmhman}
 919 backup prefix              : ${backup_prefix}
 920 transport system           : ${MTS}
 921 file locking type          : ${LOCKTYPE}
 922 default smtp servers       : ${smtpservers}
 923 default editor             : ${editorpath}
 924 default pager              : ${pagerpath}
 925 email address masquerading : ${masquerade}
 926 pop is enabled             : ${pop_kinds}
 927 SASL support               : ${sasl_support}"
 928 echo ""