2 dnl configure.ac -- 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$enableval = xyes; then
81 dnl What method of locking to use?
83 AS_HELP_STRING([--with-locking=@<:@dot|fcntl|flock|lockf@:>@],
84 [specify the file locking method]))
86 if test x"$with_locking" = x"dot"; then
88 AC_DEFINE(DOT_LOCKING, 1, [Define to use dot based file locking.])dnl
89 elif test x"$with_locking" = x"flock"; then
91 AC_DEFINE(FLOCK_LOCKING, 1, [Define to use flock() based locking.])dnl
92 elif test x"$with_locking" = x"lockf"; then
94 AC_DEFINE(LOCKF_LOCKING, 1, [Define to use lockf() based locking.])dnl
95 elif test x"$with_locking" = x"fcntl"; then
97 AC_DEFINE(FCNTL_LOCKING, 1, [Define to use fnctl() based locking.])dnl
100 AC_DEFINE(DOT_LOCKING)dnl
103 dnl What should be the default pager?
105 AS_HELP_STRING([--with-pager=PAGER],[specify the default pager]))
107 if test -n "$with_pager"; then
108 pagerpath="$with_pager"
111 dnl ----------------------------------------------------
112 dnl Default location is /usr/local/mmh/{bin,etc,lib,share/man}
113 dnl ----------------------------------------------------
114 AC_PREFIX_DEFAULT(/usr/local/mmh)
117 dnl ------------------
118 dnl CHECK THE COMPILER
119 dnl ------------------
120 dnl We want these before the checks,
121 dnl so the checks can modify their values.
122 test -z "$CFLAGS" && CFLAGS= auto_cflags=1
123 if test x"$enable_debug" = x"yes"; then
124 test -z "$LDFLAGS" && LDFLAGS=-g
129 AC_CACHE_CHECK(whether compiler supports -Wno-pointer-sign, nmh_cv_has_noptrsign,
130 [nmh_saved_cflags="$CFLAGS"
131 CFLAGS="$CFLAGS -Wno-pointer-sign"
132 AC_TRY_COMPILE([],[],nmh_cv_has_noptrsign=yes,nmh_cv_has_noptrsign=no)
133 CFLAGS="$nmh_saved_cflags"])
135 dnl if the user hasn't specified CFLAGS, then
136 dnl if compiler is gcc, then
137 dnl use -O2 and some warning flags
139 dnl We use -Wall; if the compiler supports it we also use -Wno-pointer-sign,
140 dnl because gcc 4 now produces a lot of new warnings which are probably mostly
141 dnl spurious and which in any case we don't want to deal with now.
142 if test "$nmh_cv_has_noptrsign" = "yes"; then
143 nmh_gcc_warnflags="-Wall -Wno-pointer-sign"
145 nmh_gcc_warnflags="-Wall"
148 if test -n "$auto_cflags"; then
149 if test x"$enable_debug" = x"yes"; then
150 if test -n "$GCC"; then
151 test -z "$CFLAGS" && CFLAGS="$nmh_gcc_warnflags -g" || CFLAGS="$CFLAGS $nmh_gcc_warnflags -g"
153 test -z "$CFLAGS" && CFLAGS=-g || CFLAGS="$CFLAGS -g"
156 if test -z "$LDFLAGS"; then
166 if test -n "$GCC"; then
167 test -z "$CFLAGS" && CFLAGS="$nmh_gcc_warnflags -O2" || CFLAGS="$CFLAGS $nmh_gcc_warnflags -O2"
169 test -z "$CFLAGS" && CFLAGS=-O || CFLAGS="$CFLAGS -O"
174 AC_C_CONST dnl Does compiler support `const'.
176 dnl ------------------
177 dnl CHECK FOR PROGRAMS
178 dnl ------------------
179 AC_PROG_MAKE_SET dnl Does make define $MAKE
180 AC_PROG_INSTALL dnl Check for BSD compatible `install'
181 AC_PROG_RANLIB dnl Check for `ranlib'
182 AC_PROG_AWK dnl Check for mawk,gawk,nawk, then awk
183 AC_PROG_LEX dnl Check for lex/flex
186 pathtmp=/usr/bin:/bin:/usr/local/bin:/usr/xpg4/bin:/usr/ucb
187 AC_PATH_PROG(cutpath, cut, no, [$pathtmp])
189 dnl ----------------------------------------------
190 dnl check for lclint, and lint if it doesn't exist
191 dnl ----------------------------------------------
192 AC_CHECK_PROG(linttmp1, lclint, lclint, no)dnl
193 if test x$ac_cv_prog_linttmp1 != xno ; then
194 LINT=$ac_cv_prog_linttmp1
195 LINTFLAGS="-weak +posixlib -macrovarprefixexclude"
197 AC_CHECK_PROG(linttmp2, lint, lint, no)dnl
198 if test x$ac_cv_prog_linttmp2 != xno ; then
199 LINT=$ac_cv_prog_linttmp2
202 LINT="echo 'No lint program found'"
207 AC_SUBST(LINTFLAGS)dnl
209 dnl try to figure out which one we've got
210 AC_CHECK_PROG(LIBTOOL, libtool, libtool, , [$pathtmp])
213 dnl Check for lorder and tsort commands
214 AC_CHECK_PROG(LORDER, lorder, lorder, no)dnl
215 AC_CHECK_PROG(TSORT, tsort, tsort, no)dnl
217 dnl If either doesn't exist, replace them with echo and cat
218 if test x$ac_cv_prog_LORDER != xlorder -o x$ac_cv_prog_TSORT != xtsort; then
223 dnl Mac OS X has lorder, but sh is too broken for it to work
224 dnl elif test -z "`lorder config/config.c 2>&1 | grep config/config.c`" ; then
227 dnl AC_SUBST(LORDER)dnl
228 dnl AC_SUBST(TSORT)dnl
231 dnl Check whether tsort can deal with loops
232 AC_CACHE_CHECK(whether tsort can deal with loops, nmh_cv_tsort_loop,
233 [if test -z "`echo a b b a | tsort 2>/dev/null | grep a`" ; then
236 nmh_cv_tsort_loop=yes
238 if test x$nmh_cv_tsort_loop = xno ; then
246 pathtmp=/usr/bin:/bin:/usr/local/bin:/usr/xpg4/bin:/usr/ucb
247 AC_PATH_PROG(lspath, ls, no, [$pathtmp])
249 dnl See how we get ls to display the owner and the group
250 if test "$lspath" != "no"; then
251 AC_CACHE_CHECK(how to get ls to show us the group ownership of a file,
253 [if test x"`$lspath -dl / | $AWK '{print $9}'`" = x"/"; then
254 dnl There were 9 parameters, so unless this is a really bizarre, nonstandard
255 dnl ls, it would seem -l gave us both the user and group. On this type of
256 dnl ls, -g makes _only_ the group be displayed (and not the user).
257 nmh_cv_ls_grpopt="-l"
259 dnl Looks like -l only gave us the user, so we need -g to get the group too.
260 nmh_cv_ls_grpopt="-lg"
264 dnl Look for `sendmail'
265 pathtmp=/usr/lib:/usr/sbin:/usr/etc:/usr/ucblib:/usr/bin:/bin
266 AC_PATH_PROG(sendmailpath, sendmail, /usr/sbin/sendmail, [$pathtmp])
269 pathtmp=/usr/bin:/bin:/usr/ucb:/usr/local/bin
270 AC_PATH_PROG(vipath, vi, /bin/vi, [$pathtmp])
272 dnl ----------------------------------------------------------
273 dnl FIND MAIL SPOOL AND SEE IF WE NEED TO MAKE inc SETGID MAIL
274 dnl ----------------------------------------------------------
275 AC_CACHE_CHECK(where mail spool is located, nmh_cv_mailspool,
276 [for mailspool in /var/mail dnl
279 /dev/null; dnl Just in case we fall through
281 test -d $mailspool && break
283 nmh_cv_mailspool=$mailspool
285 mailspool=$nmh_cv_mailspool
286 AC_SUBST(mailspool)dnl
288 dnl See whether the mail spool directory is world-writable.
289 if test "$lspath" != "no" -a "$cutpath" != "no"; then
290 AC_CACHE_CHECK(whether the mail spool is world-writable,
291 nmh_cv_mailspool_world_writable,
292 [if test "`$lspath -dlL $mailspool | $cutpath -c9`" = "-"; then
293 nmh_cv_mailspool_world_writable=no
295 nmh_cv_mailspool_world_writable=yes
299 dnl Also, check for liblockfile (as found on Debian systems)
300 AC_CHECK_HEADER(lockfile.h, AC_CHECK_LIB(lockfile, lockfile_create) )
302 dnl and whether its companion program dotlockfile is setgid
303 AC_PATH_PROG(dotlockfilepath, dotlockfile, no)
304 if test "$ac_cv_lib_lockfile_lockfile_create" != "no" ; then
305 if test "$ac_cv_path_dotlockfilepath" != "no" ; then
306 AC_CACHE_CHECK(whether dotlockfile is setgid, nmh_cv_dotlockfile_setgid,
307 [ if test -g "$ac_cv_path_dotlockfilepath" ; then
308 nmh_cv_dotlockfile_setgid=yes
310 nmh_cv_dotlockfile_setgid=no
315 dnl If mailspool is not world-writable and dotlockfile is not setgid,
316 dnl we need to #define MAILGROUP to 1 and make inc setgid.
317 if test x"$LOCKTYPE" = x"dot" -a x"$nmh_cv_mailspool_world_writable" = x"no" -a x"$nmh_cv_dotlockfile_setgid" != x"yes" ; then
318 dnl do we really need both of these?
319 AC_DEFINE(MAILGROUP,1,
320 [Define to 1 if you need to make `inc' set-group-id because your mail spool is not world writable. There are no guarantees as to the safety of doing this, but this #define will add some extra security checks.])dnl
323 AC_SUBST(SETGID_MAIL)dnl
325 dnl Use ls to see which group owns the mail spool directory.
326 AC_CACHE_CHECK(what group owns the mail spool, nmh_cv_ls_mail_grp,
327 [nmh_cv_ls_mail_grp=`$lspath -dL $nmh_cv_ls_grpopt $mailspool|$AWK '{print $4}'`
329 MAIL_SPOOL_GRP=$nmh_cv_ls_mail_grp
330 AC_SUBST(MAIL_SPOOL_GRP)dnl
332 dnl ------------------
333 dnl CHECK HEADER FILES
334 dnl ------------------
336 dnl On glibc we need to define at least the '_XOPEN_SOURCE' level of features,
337 dnl or wchar.h doesn't declare a prototype for wcwidth(). But if we only define
338 dnl that level then db.h won't compile. So we define _GNU_SOURCE which turns
339 dnl on everything. Perhaps other OSes need some feature switch set to get wcwidth()
340 dnl declared; if so they should have an entry added to this case statement.
341 dnl NB that we must define this on the compiler command line, not in config.h,
342 dnl because it must be set before any system header is included and there's no
343 dnl portable way to make sure that files generated by lex include config.h
344 dnl before system header files.
348 # Like DEFS, but doesn't get stomped on by configure when using config.h:
349 OURDEFS="$OURDEFS -D_GNU_SOURCE"
360 AC_CHECK_HEADERS(string.h memory.h stdlib.h unistd.h errno.h fcntl.h \
361 limits.h crypt.h termcap.h termio.h termios.h locale.h \
362 langinfo.h wchar.h wctype.h iconv.h netdb.h \
363 sys/param.h sys/time.h sys/utsname.h sys/stream.h \
364 arpa/inet.h arpa/ftp.h)
367 dnl Checks for _IO_write_ptr. A Linuxism used by nmh on linux. We
368 dnl really use a whole set of them, but this check should be
371 AC_CHECK_HEADER(libio.h, [
372 AC_EGREP_HEADER(_IO_write_ptr, libio.h, [
373 AC_DEFINE(LINUX_STDIO,1,[Use the Linux _IO_*_ptr defines from <libio.h>.]) ]) ])
375 AC_CHECK_HEADER([sys/ptem.h], AC_DEFINE(WINSIZE_IN_PTEM,1,
376 [Define to 1 if `struct winsize' requires <sys/ptem.h>.]),,
377 [[#if HAVE_SYS_STREAM_H
378 # include <sys/stream.h>
386 AC_CHECK_LIB(mkstemp,mkstemp)
387 AC_CHECK_FUNCS(waitpid wait3 sigaction sigprocmask sigblock sigsetmask \
388 sighold sigrelse lstat uname tzset killpg mkstemp \
389 getutent nl_langinfo mbtowc wcwidth)
391 dnl sigsetjmp may be a macro
392 AC_MSG_CHECKING(for sigsetjmp)
393 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <setjmp.h>]],
394 [[sigsetjmp((void *)0, 0);]])],[AC_DEFINE(HAVE_SIGSETJMP, 1,
395 [Define to 1 if you have the `sigsetjmp'.]) AC_MSG_RESULT(yes)],
398 AC_REPLACE_FUNCS(snprintf strdup)
400 dnl Look for the initgroups() declaration. On AIX 4.[13], Solaris 4.1.3, and
401 dnl ULTRIX 4.2A the function is defined in libc but there's no declaration in
402 dnl any system header.
404 dnl On Solaris 2.[456], the declaration is in <grp.h>. On HP-UX 9-11 and
405 dnl (reportedly) FreeBSD 3.[23], it's in <unistd.h>. Any other locations we
407 AH_TEMPLATE(INITGROUPS_HEADER, [Define to the header containing the declaration of `initgroups'.])
408 AC_EGREP_HEADER(initgroups, grp.h, AC_DEFINE(INITGROUPS_HEADER, <grp.h>),
409 AC_EGREP_HEADER(initgroups, unistd.h,
410 AC_DEFINE(INITGROUPS_HEADER, <unistd.h>)))
412 dnl On AIX 4.1, snprintf() is defined in libc.a but there's no prototype in
413 dnl <stdio.h> or elsewhere. Apparently it's not officially supported (though it
414 dnl seems to work perfectly and IBM apparently uses it in internal code).
415 dnl Anyhow, if we omit our own snprintf() and vsnprintf() prototypes when we
416 dnl HAVE_SNPRINTF, we get a billion warnings at compile time. Use the C
417 dnl preprocessor to preprocess stdio.h and make sure that there's actually a
419 AC_EGREP_HEADER(snprintf, stdio.h, AC_DEFINE(HAVE_SNPRINTF_PROTOTYPE,1,
420 [Define to 1 if <stdio.h> has a prototype for snprintf().]))
422 dnl Check for multibyte character set support
423 if test "x$ac_cv_header_wchar_h" = "xyes" -a "x$ac_cv_header_wctype_h" = "xyes" \
424 -a "x$ac_cv_func_wcwidth" = "xyes" -a "x$ac_cv_func_mbtowc" = "xyes"; then
425 AC_DEFINE(MULTIBYTE_SUPPORT, 1,
426 [Define to enable support for multibyte character sets.])
429 dnl -------------------
430 dnl CHECK FOR LIBRARIES
431 dnl -------------------
432 dnl Check location of modf
433 AC_CHECK_FUNC(modf, , AC_CHECK_LIB(m, modf))
435 dnl Checks for network libraries (nsl, socket)
438 termcap_curses_order="termcap curses ncurses"
439 for lib in $termcap_curses_order; do
440 AC_CHECK_LIB(${lib}, tgetent, [TERMLIB="-l$lib"; break])
448 dnl Find iconv. It may be in libiconv and may be iconv() or libiconv()
449 if test "x$ac_cv_header_iconv_h" = "xyes"; then
450 AC_CHECK_FUNC(iconv, ac_found_iconv=yes, ac_found_iconv=no)
451 if test "x$ac_found_iconv" = "xno"; then
452 AC_CHECK_LIB(iconv, iconv, ac_found_iconv=yes)
453 if test "x$ac_found_iconv" = "xno"; then
454 AC_CHECK_LIB(iconv, libiconv, ac_found_iconv=yes)
456 if test "x$ac_found_iconv" != "xno"; then
460 dnl Handle case where there is a native iconv but iconv.h is from libiconv
461 AC_CHECK_DECL(_libiconv_version,
462 [ AC_CHECK_LIB(iconv, libiconv, LIBS="-liconv $LIBS") ],,
463 [ #include <iconv.h> ])
466 if test "x$ac_found_iconv" = xyes; then
467 AC_DEFINE(HAVE_ICONV, 1, [Define if you have the iconv() function.])
470 dnl Check if iconv uses const in prototype declaration
471 if test "x$ac_found_iconv" = "xyes"; then
472 AC_CACHE_CHECK(for iconv declaration, ac_cv_iconv_const,
473 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <stdlib.h>
474 #include <iconv.h>]],
478 #if defined(__STDC__) || defined(__cplusplus)
479 size_t iconv (iconv_t cd, char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);
483 [ac_cv_iconv_const=],
484 [ac_cv_iconv_const=const])])
485 AC_DEFINE_UNQUOTED([ICONV_CONST], $ac_cv_iconv_const,
486 [Define as const if the declaration of iconv() needs const.])
493 AC_ARG_WITH([ndbm],AS_HELP_STRING([--with-ndbm=ARG],[use -lARG to link with ndbm]),
494 [nmh_ndbm=$withval],[nmh_ndbm=autodetect])
495 AC_ARG_WITH([ndbmheader],AS_HELP_STRING([--with-ndbmheader=ARG],[#include <ARG> to use ndbm]),
496 [nmh_ndbmheader=$withval],[nmh_ndbmheader=autodetect])
498 if test "$nmh_ndbm" = "autodetect"; then
499 if test "$nmh_ndbmheader" != "autodetect"; then
500 AC_MSG_ERROR([must specify both --with-ndbm and --with-ndbmheader or neither])
503 dnl There are at least four implementations of ndbm, and
504 dnl several of those can be in different places at the whim
505 dnl of the system integrator. A good summary of this mess
506 dnl can be found at http://www.unixpapa.com/incnote/dbm.html
508 dnl Classic ndbm with no library required (eg NetBSD): try this
509 dnl first so we don't accidentally link in a pointless but harmless
510 dnl library in one of the later ndbm.h+libfoo tests:
511 NMH_CHECK_NDBM(ndbm.h,,,
512 dnl Berkeley DBv2 emulating ndbm: header in db.h:
513 NMH_CHECK_NDBM(db.h,db,,
514 dnl Berkeley DBv1 emulating ndbm:
515 NMH_CHECK_NDBM(ndbm.h,db,,
516 NMH_CHECK_NDBM(ndbm.h,db1,,
518 NMH_CHECK_NDBM(ndbm.h,ndbm,,
519 dnl glibc2.1 systems put db1 in a subdir:
520 NMH_CHECK_NDBM(db1/ndbm.h,db1,,
521 dnl GNU gdbm emulating ndbm, with header possibly in gdbm/
522 dnl and possibly needing gbdm_compat library:
523 NMH_CHECK_NDBM(gdbm/ndbm.h,gdbm,,
524 NMH_CHECK_NDBM(gdbm/ndbm.h,gdbm_compat -lgdbm,,
525 NMH_CHECK_NDBM(ndbm.h,gdbm,,
526 NMH_CHECK_NDBM(ndbm.h,gdbm_compat -lgdbm))))))))))
530 dnl We don't really need to check that the user-specified values work,
531 dnl but it is a convenience to the user to bomb out early rather than
532 dnl after configure and half the compile process.
533 NMH_CHECK_NDBM([$nmh_ndbmheader],[$nmh_ndbm])
536 if test "$nmh_ndbm_found" = "no"; then
537 AC_MSG_ERROR([could not find a working ndbm library/header combination])
539 dnl Now export the lib/header to our makefile/config.h:
540 if test x"$nmh_ndbmheader" != x; then
541 AC_DEFINE_UNQUOTED(NDBM_HEADER, <$nmh_ndbmheader>,
542 [Define to the header containing the ndbm API prototypes.])
544 if test x"$nmh_ndbm" != x; then
545 NDBM_LIBS="-l$nmh_ndbm"
553 dnl ---------------------
554 dnl CHECK TERMCAP LIBRARY
555 dnl ---------------------
557 dnl Add the termcap library, so that the following configure
558 dnl tests will find it when it tries to link test programs.
559 nmh_save_LIBS="$LIBS"
560 LIBS="$TERMLIB $LIBS"
562 dnl Checks for external variable ospeed in the termcap library.
563 AC_CACHE_CHECK(if an include file defines ospeed,
564 nmh_cv_decl_ospeed_include_defines,
565 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
567 # include <termios.h>
570 # include <termcap.h>
571 #endif]], [[ospeed = 0;]])],
572 nmh_cv_decl_ospeed_include_defines=yes,nmh_cv_decl_ospeed_include_defines=no)])
574 if test $nmh_cv_decl_ospeed_include_defines = no; then
575 AC_CACHE_CHECK(if you must define ospeed,
576 nmh_cv_decl_ospeed_must_define,
577 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
578 [[extern short ospeed; ospeed = 0;]])],
579 nmh_cv_decl_ospeed_must_define=yes,nmh_cv_decl_ospeed_must_define=no)])
582 AH_TEMPLATE(HAVE_OSPEED, [Define to 1 if your termcap library has the ospeed variable.])
583 if test $nmh_cv_decl_ospeed_include_defines = yes; then
584 AC_DEFINE(HAVE_OSPEED)dnl
585 elif test $nmh_cv_decl_ospeed_must_define = yes; then
586 AC_DEFINE(HAVE_OSPEED)
587 AC_DEFINE(MUST_DEFINE_OSPEED, 1,
588 [Define to 1 if you have ospeed, but it is not defined in termcap.h.])
591 dnl Check if tgetent accepts NULL (and will allocate its own termcap buffer)
592 dnl Some termcaps reportedly accept a zero buffer, but then dump core
594 dnl Under Cygwin test program crashes but exit code is still 0. So,
595 dnl we test for a file that porgram should create
596 AH_TEMPLATE([TGETENT_ACCEPTS_NULL],
597 [Define to 1 if tgetent() accepts NULL as a buffer.])
598 AC_CACHE_CHECK(if tgetent accepts NULL,
599 nmh_cv_func_tgetent_accepts_null,
604 int r1 = tgetent(buf, "vt100");
605 int r2 = tgetent((char*)0,"vt100");
606 if (r1 >= 0 && r1 == r2) {
610 creat("conftest.tgetent", 0640);
612 exit((r1 != r2) || r2 == -1);
615 if test -f conftest.tgetent; then
616 nmh_cv_func_tgetent_accepts_null=yes
618 nmh_cv_func_tgetent_accepts_null=no
620 nmh_cv_func_tgetent_accepts_null=no,
621 nmh_cv_func_tgetent_accepts_null=no)])
622 if test x$nmh_cv_func_tgetent_accepts_null = xyes; then
623 AC_DEFINE(TGETENT_ACCEPTS_NULL)
625 AC_CACHE_CHECK(if tgetent returns 0 on success,
626 nmh_cv_func_tgetent_zero_success,
631 int r1 = tgetent(buf, "!@#$%^&*");
632 int r2 = tgetent(buf, "vt100");
633 if (r1 < 0 && r2 == 0) {
637 creat("conftest.tgetent0", 0640);
642 if test -f conftest.tgetent0; then
643 nmh_cv_func_tgetent_zero_success=yes
645 nmh_cv_func_tgetent_zero_success=no
647 nmh_cv_func_tgetent_zero_success=no,
648 nmh_cv_func_tgetent_zero_success=no)])
649 AH_TEMPLATE([TGETENT_SUCCESS],
650 [Define to what tgetent() returns on success (0 on HP-UX X/Open curses).])
651 if test x$nmh_cv_func_tgetent_zero_success = xyes; then
652 AC_DEFINE(TGETENT_SUCCESS, 0)
654 AC_DEFINE(TGETENT_SUCCESS, 1)
657 dnl Now put the libraries back to what it was before we
658 dnl starting checking the termcap library.
659 LIBS="$nmh_save_LIBS"
671 dnl Check for sigset_t. Currently I'm looking in
672 dnl <sys/types.h> and <signal.h>. Others might need
674 AC_CACHE_CHECK(for sigset_t, nmh_cv_type_sigset_t,
675 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
676 #include <signal.h>]], [[sigset_t tempsigset;]])],
677 nmh_cv_type_sigset_t=yes,nmh_cv_type_sigset_t=no)])
678 if test $nmh_cv_type_sigset_t = no; then
679 AC_DEFINE(sigset_t, unsigned int,
680 [Define to `unsigned int' if <sys/types.h> or <signal.h> doesn't define.])
686 AC_CHECK_MEMBERS(struct stat.st_blksize)
688 AC_CHECK_MEMBERS(struct tm.tm_gmtoff,,,
689 [#ifdef TIME_WITH_SYS_TIME
690 # include <sys/time.h>
693 # ifdef TM_IN_SYS_TIME
694 # include <sys/time.h>
700 AC_CHECK_MEMBERS(struct utmp.ut_type,,,[#include <utmp.h>])
702 AC_MSG_CHECKING(for union wait)
703 AC_CACHE_VAL(nmh_cv_union_wait, [dnl
704 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
705 #include <sys/wait.h>]],
706 [[union wait status; int pid; pid = wait (&status);
708 /* Some POSIXoid systems have both the new-style macros and the old
709 union wait type, and they do not work together. If union wait
710 conflicts with WEXITSTATUS et al, we don't want to use it at all. */
711 if (WEXITSTATUS (status) != 0) pid = -1;
713 /* If we have WEXITSTATUS and WTERMSIG, just use them on ints. */
714 -- blow chunks here --
718 /* Make sure union wait works with waitpid. */
719 pid = waitpid (-1, &status, 0);
722 [nmh_cv_union_wait=yes],
723 [nmh_cv_union_wait=no])])
724 if test "$nmh_cv_union_wait" = yes; then
725 AC_DEFINE(HAVE_UNION_WAIT, 1,
726 [Define to 1 if you have the \`union wait' type in <sys/wait.h>.])
728 AC_MSG_RESULT($nmh_cv_union_wait)
730 CHECK_TYPE_STRUCT_DIRENT_D_TYPE()
735 dnl What style of signal do you have (POSIX, BSD, or SYSV)?
736 AH_TEMPLATE(RELIABLE_SIGNALS, [Define to 1 if you have reliable signals.])
737 AC_MSG_CHECKING(what style of signals to use)
738 if test $ac_cv_func_sigaction = yes -a $ac_cv_func_sigprocmask = yes; then
739 signals_style=POSIX_SIGNALS
740 AC_DEFINE(POSIX_SIGNALS, 1,
741 [Define to 1 if you use POSIX style signal handling.])
742 AC_DEFINE(RELIABLE_SIGNALS)
743 elif test $ac_cv_func_sigblock = yes -a $ac_cv_func_sigsetmask = yes; then
744 signals_style=BSD_SIGNALS
745 AC_DEFINE(BSD_SIGNALS,1,
746 [Define to 1 if you use BSD style signal handling (and can block signals).])
747 AC_DEFINE(RELIABLE_SIGNALS)
748 elif test $ac_cv_func_sighold = yes -a $ac_cv_func_sigrelse = yes; then
749 signals_style=SYSV_SIGNALS
750 AC_DEFINE(SYSV_SIGNALS,1,
751 [Define to 1 if you use SYSV style signal handling (and can block signals).])
753 signals_style=NO_SIGNAL_BLOCKING
754 AC_DEFINE(NO_SIGNAL_BLOCKING,1,
755 [Define to 1 if you have no signal blocking at all (bummer).])
758 AC_MSG_RESULT($signals_style)
760 dnl Where is <signal.h> located? Needed as input for signames.awk
761 AC_CACHE_CHECK(where signal.h is located, nmh_cv_path_signal_h,
762 [for SIGNAL_H in /usr/include/bsd/sys/signal.h dnl Next
763 /usr/include/asm/signal.h dnl Linux 1.3.0 and above
764 /usr/include/asm/signum.h dnl some versions of Linux/Alpha
765 /usr/include/linux/signal.h dnl Linux up to 1.2.11
766 /usr/include/sys/signal.h dnl Almost everybody else
767 /dev/null; dnl Just in case we fall through
769 test -f $SIGNAL_H && \
770 grep '#[ ]*define[ ][ ]*SIG[0-9A-Z]*[ ]*[0-9][0-9]*' $SIGNAL_H > /dev/null && \
773 nmh_cv_path_signal_h=$SIGNAL_H
775 SIGNAL_H=$nmh_cv_path_signal_h
776 AC_SUBST(SIGNAL_H)dnl
779 dnl OS SPECIFIC DEFINES
781 AH_TEMPLATE(BSD42, [Defined for SunOS 4, FreeBSD, NetBSD, OpenBSD, BSD/OS, Mac OS X/Rhapsody -- does PicoBSD have uname?])
782 AH_TEMPLATE(SCO_5_STDIO, [Defined for SCO5.])
802 AC_DEFINE(SCO_5_STDIO)
810 AC_CONFIG_FILES(Makefile config/Makefile h/Makefile sbr/Makefile uip/Makefile \
811 etc/Makefile docs/Makefile man/Makefile)
812 AC_CONFIG_COMMANDS([stamp],[test -z "$CONFIG_HEADERS" || echo > stamp-h])
815 dnl These odd looking assignments are done to expand out unexpanded
816 dnl variables in bindir et al (for instance mandir is '${datarootdir}/man',
817 dnl but expanding that gives '${prefix}/share/man', so we need to expand
818 dnl again to get the final answer.
819 dnl We only use the expanded versions to print the install paths in
820 dnl the final summary and should use them nowhere else (see the autoconf
821 dnl docs for the rationale for bindir etc being unexpanded).
822 eval "nmhbin=${bindir}"; eval "nmhbin=${nmhbin}"
823 eval "nmhsysconf=${sysconfdir}"; eval "nmhsysconf=${nmhsysconf}"
824 eval "nmhlib=${libdir}"; eval "nmhlib=${nmhlib}"
825 eval "nmhman=${mandir}"; eval "nmhman=${nmhman}"
830 nmh version : AC_PACKAGE_VERSION
831 target os : ${target}
833 compiler flags : ${CFLAGS}
834 linker flags : ${LDFLAGS}
835 definitions : ${OURDEFS}
836 source code location : ${srcdir}
838 binary install path : ${nmhbin}
839 library install path : ${nmhlib}
840 config install path : ${nmhsysconf}
841 man page install path : ${nmhman}
843 sendmail path : ${sendmailpath}
845 file locking type : ${LOCKTYPE}
846 address masquerading : ${masquerade}