2 dnl configure.in -- autoconf template for nmh
8 AC_INIT(mmh, m4_normalize(m4_include([VERSION])))
9 AC_CONFIG_SRCDIR(h/nmh.h)
10 AC_CONFIG_HEADER(config.h)
14 dnl ---------------------
15 dnl define a macro or two
16 dnl ---------------------
18 AC_DEFUN(NMH_PROG_GNU_LIBTOOL, [
19 if test -n "$LIBTOOL" ; then
20 tmptest=`$LIBTOOL --version 2>&1 | grep GNU`
21 if test x"$tmptest" != x ; then
23 AC_SUBST(GNU_LIBTOOL)dnl
28 echo "configuring for AC_PACKAGE_NAME-AC_PACKAGE_VERSION"
29 AC_SUBST(VERSION,AC_PACKAGE_VERSION)dnl
31 dnl What date of nmh are we building?
32 DATE=`cat ${srcdir}/DATE`
33 echo "configuring for nmh dated $DATE"
36 dnl --------------------------
37 dnl CHECK COMMAND LINE OPTIONS
38 dnl --------------------------
40 dnl Do you want to debug nmh?
42 AS_HELP_STRING([--enable-debug],[enable nmh code debugging]))
43 dnl The old redundant --enable-nmh-debug is deprecated and undocumented.
44 if test x"$enable_nmh_debug" = x"yes"; then
48 dnl Allow users to send email from addresses other than their default?
49 AC_ARG_ENABLE(masquerade,
50 AS_HELP_STRING([--enable-masquerade='draft_from mmailid username_extension'],
51 [enable up to 3 types of address masquerading]),
52 [if test x"$enable_masquerade" = x"yes"; then
53 masquerade="draft_from mmailid username_extension"
55 masquerade="$enable_masquerade"
56 fi], [masquerade="draft_from mmailid username_extension"])
57 AC_SUBST(masquerade)dnl
59 dnl Do you want mhe support?
61 AS_HELP_STRING([--disable-mhe],[disable mhe support]))
63 dnl mhe support is on by default, so define it unless --disable-mhe or the
64 dnl deprecated, undocumented --disable-nmh-mhe are specified.
65 if test x"$enable_mhe" != x"no" -a x"$enable_nmh_mhe" != x"no"; then
67 [Define to compile in support for the Emacs front-end mh-e.])dnl
70 dnl Do you want to disable use of locale functions
72 [Undefine if you don't want locale features. By default this is defined.])
73 AC_ARG_ENABLE([locale],
74 AC_HELP_STRING([--disable-locale], [turn off locale features]),
75 [if test x$enableval = xyes; then
81 dnl Do you want client-side support for encryption with TLS?
82 AC_ARG_WITH(tls, AS_HELP_STRING([--with-tls], [Enable TLS support]))
83 if test x"$with_tls" != x -a x"$with_tls" != x"no"; then
84 AC_DEFINE(TLS_SUPPORT, 1, [Support TLS for session encryption.])dnl
90 dnl What should be the default editor?
92 AS_HELP_STRING([--with-editor=EDITOR],[specify the default editor]))
94 if test -n "$with_editor"; then
95 editorpath="$with_editor"
98 dnl Set the backup prefix
99 AC_ARG_WITH([hash-backup],
100 AS_HELP_STRING([--with-hash-backup],[use # as the backup prefix (default: ,)]))
101 if test x"$with_hash_backup" != x -a x"$with_hash_backup" != x"no"; then
106 AC_DEFINE_UNQUOTED(BACKUP_PREFIX, "$backup_prefix",
107 [The prefix that is prepended to the name of message files when they are "removed" by rmm. This should typically be `,' or `#'.])dnl
109 dnl What method of locking to use?
111 AS_HELP_STRING([--with-locking=@<:@dot|fcntl|flock|lockf@:>@],
112 [specify the file locking method]))
114 if test x"$with_locking" = x"dot"; then
116 AC_DEFINE(DOT_LOCKING, 1, [Define to use dot based file locking.])dnl
117 elif test x"$with_locking" = x"flock"; then
119 AC_DEFINE(FLOCK_LOCKING, 1, [Define to use flock() based locking.])dnl
120 elif test x"$with_locking" = x"lockf"; then
122 AC_DEFINE(LOCKF_LOCKING, 1, [Define to use lockf() based locking.])dnl
123 elif test x"$with_locking" = x"fcntl"; then
125 AC_DEFINE(FCNTL_LOCKING, 1, [Define to use fnctl() based locking.])dnl
128 AC_DEFINE(DOT_LOCKING)dnl
131 dnl What should be the default pager?
133 AS_HELP_STRING([--with-pager=PAGER],[specify the default pager]))
135 if test -n "$with_pager"; then
136 pagerpath="$with_pager"
139 dnl ----------------------------------------------------
140 dnl Default location is /usr/local/mmh/{bin,etc,lib,share/man}
141 dnl ----------------------------------------------------
142 AC_PREFIX_DEFAULT(/usr/local/mmh)
145 dnl ------------------
146 dnl CHECK THE COMPILER
147 dnl ------------------
148 dnl We want these before the checks,
149 dnl so the checks can modify their values.
150 test -z "$CFLAGS" && CFLAGS= auto_cflags=1
151 if test x"$enable_debug" = x"yes"; then
152 test -z "$LDFLAGS" && LDFLAGS=-g
157 AC_CACHE_CHECK(whether compiler supports -Wno-pointer-sign, nmh_cv_has_noptrsign,
158 [nmh_saved_cflags="$CFLAGS"
159 CFLAGS="$CFLAGS -Wno-pointer-sign"
160 AC_TRY_COMPILE([],[],nmh_cv_has_noptrsign=yes,nmh_cv_has_noptrsign=no)
161 CFLAGS="$nmh_saved_cflags"])
163 dnl if the user hasn't specified CFLAGS, then
164 dnl if compiler is gcc, then
165 dnl use -O2 and some warning flags
167 dnl We use -Wall; if the compiler supports it we also use -Wno-pointer-sign,
168 dnl because gcc 4 now produces a lot of new warnings which are probably mostly
169 dnl spurious and which in any case we don't want to deal with now.
170 if test "$nmh_cv_has_noptrsign" = "yes"; then
171 nmh_gcc_warnflags="-Wall -Wno-pointer-sign"
173 nmh_gcc_warnflags="-Wall"
176 if test -n "$auto_cflags"; then
177 if test x"$enable_debug" = x"yes"; then
178 if test -n "$GCC"; then
179 test -z "$CFLAGS" && CFLAGS="$nmh_gcc_warnflags -g" || CFLAGS="$CFLAGS $nmh_gcc_warnflags -g"
181 test -z "$CFLAGS" && CFLAGS=-g || CFLAGS="$CFLAGS -g"
184 if test -z "$LDFLAGS"; then
194 if test -n "$GCC"; then
195 test -z "$CFLAGS" && CFLAGS="$nmh_gcc_warnflags -O2" || CFLAGS="$CFLAGS $nmh_gcc_warnflags -O2"
197 test -z "$CFLAGS" && CFLAGS=-O || CFLAGS="$CFLAGS -O"
202 AC_C_CONST dnl Does compiler support `const'.
204 dnl ------------------
205 dnl CHECK FOR PROGRAMS
206 dnl ------------------
207 AC_PROG_MAKE_SET dnl Does make define $MAKE
208 AC_PROG_INSTALL dnl Check for BSD compatible `install'
209 AC_PROG_RANLIB dnl Check for `ranlib'
210 AC_PROG_AWK dnl Check for mawk,gawk,nawk, then awk
211 AC_PROG_LEX dnl Check for lex/flex
214 pathtmp=/usr/bin:/bin:/usr/local/bin:/usr/xpg4/bin:/usr/ucb
215 AC_PATH_PROG(cutpath, cut, no, [$pathtmp])
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"
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
230 LINT="echo 'No lint program found'"
235 AC_SUBST(LINTFLAGS)dnl
237 dnl try to figure out which one we've got
238 AC_CHECK_PROG(LIBTOOL, libtool, libtool, , [$pathtmp])
241 dnl Check for lorder and tsort commands
242 AC_CHECK_PROG(LORDER, lorder, lorder, no)dnl
243 AC_CHECK_PROG(TSORT, tsort, tsort, no)dnl
245 dnl If either doesn't exist, replace them with echo and cat
246 if test x$ac_cv_prog_LORDER != xlorder -o x$ac_cv_prog_TSORT != xtsort; then
251 dnl Mac OS X has lorder, but sh is too broken for it to work
252 dnl elif test -z "`lorder config/config.c 2>&1 | grep config/config.c`" ; then
255 dnl AC_SUBST(LORDER)dnl
256 dnl AC_SUBST(TSORT)dnl
259 dnl Check whether tsort can deal with loops
260 AC_CACHE_CHECK(whether tsort can deal with loops, nmh_cv_tsort_loop,
261 [if test -z "`echo a b b a | tsort 2>/dev/null | grep a`" ; then
264 nmh_cv_tsort_loop=yes
266 if test x$nmh_cv_tsort_loop = xno ; then
274 pathtmp=/usr/bin:/bin:/usr/local/bin:/usr/xpg4/bin:/usr/ucb
275 AC_PATH_PROG(lspath, ls, no, [$pathtmp])
277 dnl See how we get ls to display the owner and the group
278 if test "$lspath" != "no"; then
279 AC_CACHE_CHECK(how to get ls to show us the group ownership of a file,
281 [if test x"`$lspath -dl / | $AWK '{print $9}'`" = x"/"; then
282 dnl There were 9 parameters, so unless this is a really bizarre, nonstandard
283 dnl ls, it would seem -l gave us both the user and group. On this type of
284 dnl ls, -g makes _only_ the group be displayed (and not the user).
285 nmh_cv_ls_grpopt="-l"
287 dnl Looks like -l only gave us the user, so we need -g to get the group too.
288 nmh_cv_ls_grpopt="-lg"
293 pathtmp=/usr/bin:/bin:/usr/ucb:/usr/local/bin
294 AC_PATH_PROG(morepath, more, no, [$pathtmp])
296 dnl If pager is not specified yet,
297 dnl then use `more' as the default.
298 if test -z "$pagerpath"; then
299 pagerpath="$morepath"
301 AC_SUBST(pagerpath)dnl
303 dnl Look for `sendmail'
304 pathtmp=/usr/lib:/usr/sbin:/usr/etc:/usr/ucblib:/usr/bin:/bin
305 AC_PATH_PROG(sendmailpath, sendmail, /usr/sbin/sendmail, [$pathtmp])
308 pathtmp=/usr/bin:/bin:/usr/ucb:/usr/local/bin
309 AC_PATH_PROG(vipath, vi, /bin/vi, [$pathtmp])
311 dnl If editor is not specified yet,
312 dnl then use `vi' as the default.
313 if test -z "$editorpath"; then
316 AC_SUBST(editorpath)dnl
318 dnl ----------------------------------------------------------
319 dnl FIND MAIL SPOOL AND SEE IF WE NEED TO MAKE inc SETGID MAIL
320 dnl ----------------------------------------------------------
321 AC_CACHE_CHECK(where mail spool is located, nmh_cv_mailspool,
322 [for mailspool in /var/mail dnl
325 /dev/null; dnl Just in case we fall through
327 test -d $mailspool && break
329 nmh_cv_mailspool=$mailspool
331 mailspool=$nmh_cv_mailspool
332 AC_SUBST(mailspool)dnl
334 dnl See whether the mail spool directory is world-writable.
335 if test "$lspath" != "no" -a "$cutpath" != "no"; then
336 AC_CACHE_CHECK(whether the mail spool is world-writable,
337 nmh_cv_mailspool_world_writable,
338 [if test "`$lspath -dlL $mailspool | $cutpath -c9`" = "-"; then
339 nmh_cv_mailspool_world_writable=no
341 nmh_cv_mailspool_world_writable=yes
345 dnl Also, check for liblockfile (as found on Debian systems)
346 AC_CHECK_HEADER(lockfile.h, AC_CHECK_LIB(lockfile, lockfile_create) )
348 dnl and whether its companion program dotlockfile is setgid
349 AC_PATH_PROG(dotlockfilepath, dotlockfile, no)
350 if test "$ac_cv_lib_lockfile_lockfile_create" != "no" ; then
351 if test "$ac_cv_path_dotlockfilepath" != "no" ; then
352 AC_CACHE_CHECK(whether dotlockfile is setgid, nmh_cv_dotlockfile_setgid,
353 [ if test -g "$ac_cv_path_dotlockfilepath" ; then
354 nmh_cv_dotlockfile_setgid=yes
356 nmh_cv_dotlockfile_setgid=no
361 dnl If mailspool is not world-writable and dotlockfile is not setgid,
362 dnl we need to #define MAILGROUP to 1 and make inc setgid.
363 if test x"$LOCKTYPE" = x"dot" -a x"$nmh_cv_mailspool_world_writable" = x"no" -a x"$nmh_cv_dotlockfile_setgid" != x"yes" ; then
364 dnl do we really need both of these?
365 AC_DEFINE(MAILGROUP,1,
366 [Define to 1 if you need to make `inc' set-group-id because your mail spool is not world writable. There are no guarantees as to the safety of doing this, but this #define will add some extra security checks.])dnl
369 AC_SUBST(SETGID_MAIL)dnl
371 dnl Use ls to see which group owns the mail spool directory.
372 AC_CACHE_CHECK(what group owns the mail spool, nmh_cv_ls_mail_grp,
373 [nmh_cv_ls_mail_grp=`$lspath -dL $nmh_cv_ls_grpopt $mailspool|$AWK '{print $4}'`
375 MAIL_SPOOL_GRP=$nmh_cv_ls_mail_grp
376 AC_SUBST(MAIL_SPOOL_GRP)dnl
378 dnl ------------------
379 dnl CHECK HEADER FILES
380 dnl ------------------
382 dnl On glibc we need to define at least the '_XOPEN_SOURCE' level of features,
383 dnl or wchar.h doesn't declare a prototype for wcwidth(). But if we only define
384 dnl that level then db.h won't compile. So we define _GNU_SOURCE which turns
385 dnl on everything. Perhaps other OSes need some feature switch set to get wcwidth()
386 dnl declared; if so they should have an entry added to this case statement.
387 dnl NB that we must define this on the compiler command line, not in config.h,
388 dnl because it must be set before any system header is included and there's no
389 dnl portable way to make sure that files generated by lex include config.h
390 dnl before system header files.
394 # Like DEFS, but doesn't get stomped on by configure when using config.h:
395 OURDEFS="$OURDEFS -D_GNU_SOURCE"
406 AC_CHECK_HEADERS(string.h memory.h stdlib.h unistd.h errno.h fcntl.h \
407 limits.h crypt.h termcap.h termio.h termios.h locale.h \
408 langinfo.h wchar.h wctype.h iconv.h netdb.h \
409 sys/param.h sys/time.h sys/utsname.h sys/stream.h \
410 arpa/inet.h arpa/ftp.h)
413 dnl Checks for _IO_write_ptr. A Linuxism used by nmh on linux. We
414 dnl really use a whole set of them, but this check should be
417 AC_CHECK_HEADER(libio.h, [
418 AC_EGREP_HEADER(_IO_write_ptr, libio.h, [
419 AC_DEFINE(LINUX_STDIO,1,[Use the Linux _IO_*_ptr defines from <libio.h>.]) ]) ])
421 AC_CHECK_HEADER([sys/ptem.h], AC_DEFINE(WINSIZE_IN_PTEM,1,
422 [Define to 1 if `struct winsize' requires <sys/ptem.h>.]),,
423 [[#if HAVE_SYS_STREAM_H
424 # include <sys/stream.h>
432 AC_CHECK_LIB(mkstemp,mkstemp)
433 AC_CHECK_FUNCS(waitpid wait3 sigaction sigprocmask sigblock sigsetmask \
434 sighold sigrelse writev lstat uname tzset killpg mkstemp \
435 getutent nl_langinfo mbtowc wcwidth)
437 dnl sigsetjmp may be a macro
438 AC_MSG_CHECKING(for sigsetjmp)
439 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <setjmp.h>]],
440 [[sigsetjmp((void *)0, 0);]])],[AC_DEFINE(HAVE_SIGSETJMP, 1,
441 [Define to 1 if you have the `sigsetjmp'.]) AC_MSG_RESULT(yes)],
444 AC_REPLACE_FUNCS(memmove snprintf strerror strdup)
446 dnl Look for the initgroups() declaration. On AIX 4.[13], Solaris 4.1.3, and
447 dnl ULTRIX 4.2A the function is defined in libc but there's no declaration in
448 dnl any system header.
450 dnl On Solaris 2.[456], the declaration is in <grp.h>. On HP-UX 9-11 and
451 dnl (reportedly) FreeBSD 3.[23], it's in <unistd.h>. Any other locations we
453 AH_TEMPLATE(INITGROUPS_HEADER, [Define to the header containing the declaration of `initgroups'.])
454 AC_EGREP_HEADER(initgroups, grp.h, AC_DEFINE(INITGROUPS_HEADER, <grp.h>),
455 AC_EGREP_HEADER(initgroups, unistd.h,
456 AC_DEFINE(INITGROUPS_HEADER, <unistd.h>)))
458 dnl On AIX 4.1, snprintf() is defined in libc.a but there's no prototype in
459 dnl <stdio.h> or elsewhere. Apparently it's not officially supported (though it
460 dnl seems to work perfectly and IBM apparently uses it in internal code).
461 dnl Anyhow, if we omit our own snprintf() and vsnprintf() prototypes when we
462 dnl HAVE_SNPRINTF, we get a billion warnings at compile time. Use the C
463 dnl preprocessor to preprocess stdio.h and make sure that there's actually a
465 AC_EGREP_HEADER(snprintf, stdio.h, AC_DEFINE(HAVE_SNPRINTF_PROTOTYPE,1,
466 [Define to 1 if <stdio.h> has a prototype for snprintf().]))
468 dnl Check for multibyte character set support
469 if test "x$ac_cv_header_wchar_h" = "xyes" -a "x$ac_cv_header_wctype_h" = "xyes" \
470 -a "x$ac_cv_func_wcwidth" = "xyes" -a "x$ac_cv_func_mbtowc" = "xyes"; then
471 AC_DEFINE(MULTIBYTE_SUPPORT, 1,
472 [Define to enable support for multibyte character sets.])
475 dnl -------------------
476 dnl CHECK FOR LIBRARIES
477 dnl -------------------
478 dnl Check location of modf
479 AC_CHECK_FUNC(modf, , AC_CHECK_LIB(m, modf))
481 dnl Checks for network libraries (nsl, socket)
484 termcap_curses_order="termcap curses ncurses"
485 for lib in $termcap_curses_order; do
486 AC_CHECK_LIB(${lib}, tgetent, [TERMLIB="-l$lib"; break])
494 dnl Find iconv. It may be in libiconv and may be iconv() or libiconv()
495 if test "x$ac_cv_header_iconv_h" = "xyes"; then
496 AC_CHECK_FUNC(iconv, ac_found_iconv=yes, ac_found_iconv=no)
497 if test "x$ac_found_iconv" = "xno"; then
498 AC_CHECK_LIB(iconv, iconv, ac_found_iconv=yes)
499 if test "x$ac_found_iconv" = "xno"; then
500 AC_CHECK_LIB(iconv, libiconv, ac_found_iconv=yes)
502 if test "x$ac_found_iconv" != "xno"; then
506 dnl Handle case where there is a native iconv but iconv.h is from libiconv
507 AC_CHECK_DECL(_libiconv_version,
508 [ AC_CHECK_LIB(iconv, libiconv, LIBS="-liconv $LIBS") ],,
509 [ #include <iconv.h> ])
512 if test "x$ac_found_iconv" = xyes; then
513 AC_DEFINE(HAVE_ICONV, 1, [Define if you have the iconv() function.])
516 dnl Check if iconv uses const in prototype declaration
517 if test "x$ac_found_iconv" = "xyes"; then
518 AC_CACHE_CHECK(for iconv declaration, ac_cv_iconv_const,
519 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <stdlib.h>
520 #include <iconv.h>]],
524 #if defined(__STDC__) || defined(__cplusplus)
525 size_t iconv (iconv_t cd, char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);
529 [ac_cv_iconv_const=],
530 [ac_cv_iconv_const=const])])
531 AC_DEFINE_UNQUOTED([ICONV_CONST], $ac_cv_iconv_const,
532 [Define as const if the declaration of iconv() needs const.])
539 AC_ARG_WITH([ndbm],AS_HELP_STRING([--with-ndbm=ARG],[use -lARG to link with ndbm]),
540 [nmh_ndbm=$withval],[nmh_ndbm=autodetect])
541 AC_ARG_WITH([ndbmheader],AS_HELP_STRING([--with-ndbmheader=ARG],[#include <ARG> to use ndbm]),
542 [nmh_ndbmheader=$withval],[nmh_ndbmheader=autodetect])
544 if test "$nmh_ndbm" = "autodetect"; then
545 if test "$nmh_ndbmheader" != "autodetect"; then
546 AC_MSG_ERROR([must specify both --with-ndbm and --with-ndbmheader or neither])
549 dnl There are at least four implementations of ndbm, and
550 dnl several of those can be in different places at the whim
551 dnl of the system integrator. A good summary of this mess
552 dnl can be found at http://www.unixpapa.com/incnote/dbm.html
554 dnl Classic ndbm with no library required (eg NetBSD): try this
555 dnl first so we don't accidentally link in a pointless but harmless
556 dnl library in one of the later ndbm.h+libfoo tests:
557 NMH_CHECK_NDBM(ndbm.h,,,
558 dnl Berkeley DBv2 emulating ndbm: header in db.h:
559 NMH_CHECK_NDBM(db.h,db,,
560 dnl Berkeley DBv1 emulating ndbm:
561 NMH_CHECK_NDBM(ndbm.h,db,,
562 NMH_CHECK_NDBM(ndbm.h,db1,,
564 NMH_CHECK_NDBM(ndbm.h,ndbm,,
565 dnl glibc2.1 systems put db1 in a subdir:
566 NMH_CHECK_NDBM(db1/ndbm.h,db1,,
567 dnl GNU gdbm emulating ndbm, with header possibly in gdbm/
568 dnl and possibly needing gbdm_compat library:
569 NMH_CHECK_NDBM(gdbm/ndbm.h,gdbm,,
570 NMH_CHECK_NDBM(gdbm/ndbm.h,gdbm_compat -lgdbm,,
571 NMH_CHECK_NDBM(ndbm.h,gdbm,,
572 NMH_CHECK_NDBM(ndbm.h,gdbm_compat -lgdbm))))))))))
576 dnl We don't really need to check that the user-specified values work,
577 dnl but it is a convenience to the user to bomb out early rather than
578 dnl after configure and half the compile process.
579 NMH_CHECK_NDBM([$nmh_ndbmheader],[$nmh_ndbm])
582 if test "$nmh_ndbm_found" = "no"; then
583 AC_MSG_ERROR([could not find a working ndbm library/header combination])
585 dnl Now export the lib/header to our makefile/config.h:
586 if test x"$nmh_ndbmheader" != x; then
587 AC_DEFINE_UNQUOTED(NDBM_HEADER, <$nmh_ndbmheader>,
588 [Define to the header containing the ndbm API prototypes.])
590 if test x"$nmh_ndbm" != x; then
591 NDBM_LIBS="-l$nmh_ndbm"
599 dnl -----------------
600 dnl CHECK FOR OPENSSL
601 dnl -----------------
603 AS_IF([test x"$tls_support" = x"yes"],[
604 AC_CHECK_HEADER([openssl/ssl.h], , [AC_MSG_ERROR([openssl/ssl.h not found])])
605 AC_CHECK_LIB([crypto], [BIO_write], ,
606 [AC_MSG_ERROR([OpenSSL crypto library not found])])
607 AC_CHECK_LIB([ssl], [SSL_library_init], ,
608 [AC_MSG_ERROR([OpenSSL library not found])])])
610 dnl ---------------------
611 dnl CHECK TERMCAP LIBRARY
612 dnl ---------------------
614 dnl Add the termcap library, so that the following configure
615 dnl tests will find it when it tries to link test programs.
616 nmh_save_LIBS="$LIBS"
617 LIBS="$TERMLIB $LIBS"
619 dnl Checks for external variable ospeed in the termcap library.
620 AC_CACHE_CHECK(if an include file defines ospeed,
621 nmh_cv_decl_ospeed_include_defines,
622 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
628 #endif]], [[ospeed = 0;]])],
629 nmh_cv_decl_ospeed_include_defines=yes,nmh_cv_decl_ospeed_include_defines=no)])
631 if test $nmh_cv_decl_ospeed_include_defines = no; then
632 AC_CACHE_CHECK(if you must define ospeed,
633 nmh_cv_decl_ospeed_must_define,
634 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
635 [[extern short ospeed; ospeed = 0;]])],
636 nmh_cv_decl_ospeed_must_define=yes,nmh_cv_decl_ospeed_must_define=no)])
639 AH_TEMPLATE(HAVE_OSPEED, [Define to 1 if your termcap library has the ospeed variable.])
640 if test $nmh_cv_decl_ospeed_include_defines = yes; then
641 AC_DEFINE(HAVE_OSPEED)dnl
642 elif test $nmh_cv_decl_ospeed_must_define = yes; then
643 AC_DEFINE(HAVE_OSPEED)
644 AC_DEFINE(MUST_DEFINE_OSPEED, 1,
645 [Define to 1 if you have ospeed, but it is not defined in termcap.h.])
648 dnl Check if tgetent accepts NULL (and will allocate its own termcap buffer)
649 dnl Some termcaps reportedly accept a zero buffer, but then dump core
651 dnl Under Cygwin test program crashes but exit code is still 0. So,
652 dnl we test for a file that porgram should create
653 AH_TEMPLATE([TGETENT_ACCEPTS_NULL],
654 [Define to 1 if tgetent() accepts NULL as a buffer.])
655 AC_CACHE_CHECK(if tgetent accepts NULL,
656 nmh_cv_func_tgetent_accepts_null,
661 int r1 = tgetent(buf, "vt100");
662 int r2 = tgetent((char*)0,"vt100");
663 if (r1 >= 0 && r1 == r2) {
667 creat("conftest.tgetent", 0640);
669 exit((r1 != r2) || r2 == -1);
672 if test -f conftest.tgetent; then
673 nmh_cv_func_tgetent_accepts_null=yes
675 nmh_cv_func_tgetent_accepts_null=no
677 nmh_cv_func_tgetent_accepts_null=no,
678 nmh_cv_func_tgetent_accepts_null=no)])
679 if test x$nmh_cv_func_tgetent_accepts_null = xyes; then
680 AC_DEFINE(TGETENT_ACCEPTS_NULL)
682 AC_CACHE_CHECK(if tgetent returns 0 on success,
683 nmh_cv_func_tgetent_zero_success,
688 int r1 = tgetent(buf, "!@#$%^&*");
689 int r2 = tgetent(buf, "vt100");
690 if (r1 < 0 && r2 == 0) {
694 creat("conftest.tgetent0", 0640);
699 if test -f conftest.tgetent0; then
700 nmh_cv_func_tgetent_zero_success=yes
702 nmh_cv_func_tgetent_zero_success=no
704 nmh_cv_func_tgetent_zero_success=no,
705 nmh_cv_func_tgetent_zero_success=no)])
706 AH_TEMPLATE([TGETENT_SUCCESS],
707 [Define to what tgetent() returns on success (0 on HP-UX X/Open curses).])
708 if test x$nmh_cv_func_tgetent_zero_success = xyes; then
709 AC_DEFINE(TGETENT_SUCCESS, 0)
711 AC_DEFINE(TGETENT_SUCCESS, 1)
714 dnl Now put the libraries back to what it was before we
715 dnl starting checking the termcap library.
716 LIBS="$nmh_save_LIBS"
728 dnl Check for sigset_t. Currently I'm looking in
729 dnl <sys/types.h> and <signal.h>. Others might need
731 AC_CACHE_CHECK(for sigset_t, nmh_cv_type_sigset_t,
732 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
733 #include <signal.h>]], [[sigset_t tempsigset;]])],
734 nmh_cv_type_sigset_t=yes,nmh_cv_type_sigset_t=no)])
735 if test $nmh_cv_type_sigset_t = no; then
736 AC_DEFINE(sigset_t, unsigned int,
737 [Define to `unsigned int' if <sys/types.h> or <signal.h> doesn't define.])
743 AC_CHECK_MEMBERS(struct stat.st_blksize)
745 AC_CHECK_MEMBERS(struct tm.tm_gmtoff,,,
746 [#ifdef TIME_WITH_SYS_TIME
747 # include <sys/time.h>
750 # ifdef TM_IN_SYS_TIME
751 # include <sys/time.h>
757 AC_CHECK_MEMBERS(struct utmp.ut_type,,,[#include <utmp.h>])
759 AC_MSG_CHECKING(for union wait)
760 AC_CACHE_VAL(nmh_cv_union_wait, [dnl
761 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
762 #include <sys/wait.h>]],
763 [[union wait status; int pid; pid = wait (&status);
765 /* Some POSIXoid systems have both the new-style macros and the old
766 union wait type, and they do not work together. If union wait
767 conflicts with WEXITSTATUS et al, we don't want to use it at all. */
768 if (WEXITSTATUS (status) != 0) pid = -1;
770 /* If we have WEXITSTATUS and WTERMSIG, just use them on ints. */
771 -- blow chunks here --
775 /* Make sure union wait works with waitpid. */
776 pid = waitpid (-1, &status, 0);
779 [nmh_cv_union_wait=yes],
780 [nmh_cv_union_wait=no])])
781 if test "$nmh_cv_union_wait" = yes; then
782 AC_DEFINE(HAVE_UNION_WAIT, 1,
783 [Define to 1 if you have the \`union wait' type in <sys/wait.h>.])
785 AC_MSG_RESULT($nmh_cv_union_wait)
787 CHECK_TYPE_STRUCT_DIRENT_D_TYPE()
792 dnl What style of signal do you have (POSIX, BSD, or SYSV)?
793 AH_TEMPLATE(RELIABLE_SIGNALS, [Define to 1 if you have reliable signals.])
794 AC_MSG_CHECKING(what style of signals to use)
795 if test $ac_cv_func_sigaction = yes -a $ac_cv_func_sigprocmask = yes; then
796 signals_style=POSIX_SIGNALS
797 AC_DEFINE(POSIX_SIGNALS, 1,
798 [Define to 1 if you use POSIX style signal handling.])
799 AC_DEFINE(RELIABLE_SIGNALS)
800 elif test $ac_cv_func_sigblock = yes -a $ac_cv_func_sigsetmask = yes; then
801 signals_style=BSD_SIGNALS
802 AC_DEFINE(BSD_SIGNALS,1,
803 [Define to 1 if you use BSD style signal handling (and can block signals).])
804 AC_DEFINE(RELIABLE_SIGNALS)
805 elif test $ac_cv_func_sighold = yes -a $ac_cv_func_sigrelse = yes; then
806 signals_style=SYSV_SIGNALS
807 AC_DEFINE(SYSV_SIGNALS,1,
808 [Define to 1 if you use SYSV style signal handling (and can block signals).])
810 signals_style=NO_SIGNAL_BLOCKING
811 AC_DEFINE(NO_SIGNAL_BLOCKING,1,
812 [Define to 1 if you have no signal blocking at all (bummer).])
815 AC_MSG_RESULT($signals_style)
817 dnl Where is <signal.h> located? Needed as input for signames.awk
818 AC_CACHE_CHECK(where signal.h is located, nmh_cv_path_signal_h,
819 [for SIGNAL_H in /usr/include/bsd/sys/signal.h dnl Next
820 /usr/include/asm/signal.h dnl Linux 1.3.0 and above
821 /usr/include/asm/signum.h dnl some versions of Linux/Alpha
822 /usr/include/linux/signal.h dnl Linux up to 1.2.11
823 /usr/include/sys/signal.h dnl Almost everybody else
824 /dev/null; dnl Just in case we fall through
826 test -f $SIGNAL_H && \
827 grep '#[ ]*define[ ][ ]*SIG[0-9A-Z]*[ ]*[0-9][0-9]*' $SIGNAL_H > /dev/null && \
830 nmh_cv_path_signal_h=$SIGNAL_H
832 SIGNAL_H=$nmh_cv_path_signal_h
833 AC_SUBST(SIGNAL_H)dnl
836 dnl OS SPECIFIC DEFINES
838 AH_TEMPLATE(SYS5, [Defined for Solaris 2.x, Irix, OSF/1, HP-UX, AIX, SCO5; only used in vmh.c which is not built.])
839 AH_TEMPLATE(SVR4, [Defined for Solaris 2.x, Irix, OSF/1, HP-UX, AIX; only used in vmh.c which is not built.])
840 AH_TEMPLATE(BSD44, [Defined for SunOS 4, FreeBSD, NetBSD, OpenBSD, BSD/OS, Mac OS X/Rhapsody; only used in vmh.c which is not built.])
841 AH_TEMPLATE(BSD42, [Defined for SunOS 4, FreeBSD, NetBSD, OpenBSD, BSD/OS, Mac OS X/Rhapsody -- does PicoBSD have uname?])
842 AH_TEMPLATE(SCO_5_STDIO, [Defined for SCO5.])
883 AC_DEFINE(SCO_5_STDIO)
891 AC_CONFIG_FILES(Makefile config/Makefile h/Makefile sbr/Makefile uip/Makefile \
892 etc/Makefile docs/Makefile man/Makefile)
893 AC_CONFIG_COMMANDS([stamp],[test -z "$CONFIG_HEADERS" || echo > stamp-h])
896 dnl These odd looking assignments are done to expand out unexpanded
897 dnl variables in bindir et al (for instance mandir is '${datarootdir}/man',
898 dnl but expanding that gives '${prefix}/share/man', so we need to expand
899 dnl again to get the final answer.
900 dnl We only use the expanded versions to print the install paths in
901 dnl the final summary and should use them nowhere else (see the autoconf
902 dnl docs for the rationale for bindir etc being unexpanded).
903 eval "nmhbin=${bindir}"; eval "nmhbin=${nmhbin}"
904 eval "nmhsysconf=${sysconfdir}"; eval "nmhsysconf=${nmhsysconf}"
905 eval "nmhlib=${libdir}"; eval "nmhlib=${nmhlib}"
906 eval "nmhman=${mandir}"; eval "nmhman=${nmhman}"
911 nmh version : AC_PACKAGE_VERSION
912 target os : ${target}
914 compiler flags : ${CFLAGS}
915 linker flags : ${LDFLAGS}
916 definitions : ${OURDEFS}
917 source code location : ${srcdir}
918 binary install path : ${nmhbin}
919 library install path : ${nmhlib}
920 config files install path : ${nmhsysconf}
921 man page install path : ${nmhman}
922 backup prefix : ${backup_prefix}
923 file locking type : ${LOCKTYPE}
924 default editor : ${editorpath}
925 default pager : ${pagerpath}
926 email address masquerading : ${masquerade}
927 TLS support : ${tls_support}"