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