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