2 dnl configure.ac -- autoconf template for mmh
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 mmh are we building?
32 DATE=`cat ${srcdir}/DATE`
33 echo "configuring for mmh dated $DATE"
36 dnl --------------------------
37 dnl CHECK COMMAND LINE OPTIONS
38 dnl --------------------------
40 dnl Do you want to debug mmh?
42 AS_HELP_STRING([--enable-debug],[enable nmh code debugging]))
43 dnl The old redundant --enable-nmh-debug is deprecated and undocumented.
44 if test x"$enable_nmh_debug" = x"yes"; then
48 dnl Do you want mhe support?
50 AS_HELP_STRING([--disable-mhe],[disable mhe support]))
52 dnl mhe support is on by default, so define it unless --disable-mhe or the
53 dnl deprecated, undocumented --disable-nmh-mhe are specified.
54 if test x"$enable_mhe" != x"no" -a x"$enable_nmh_mhe" != x"no"; then
56 [Define to compile in support for the Emacs front-end mh-e.])dnl
59 dnl Do you want to disable use of locale functions
61 [Undefine if you don't want locale features. By default this is defined.])
62 AC_ARG_ENABLE([locale],
63 AC_HELP_STRING([--disable-locale], [turn off locale features]),
64 [if test x$enableval = xyes; then
70 dnl What method of locking to use?
72 AS_HELP_STRING([--with-locking=@<:@dot|fcntl|flock|lockf@:>@],
73 [specify the file locking method]))
75 if test x"$with_locking" = x"dot"; then
77 AC_DEFINE(DOT_LOCKING, 1, [Define to use dot based file locking.])dnl
78 elif test x"$with_locking" = x"flock"; then
80 AC_DEFINE(FLOCK_LOCKING, 1, [Define to use flock() based locking.])dnl
81 elif test x"$with_locking" = x"lockf"; then
83 AC_DEFINE(LOCKF_LOCKING, 1, [Define to use lockf() based locking.])dnl
84 elif test x"$with_locking" = x"fcntl"; then
86 AC_DEFINE(FCNTL_LOCKING, 1, [Define to use fnctl() based locking.])dnl
89 AC_DEFINE(DOT_LOCKING)dnl
93 dnl ----------------------------------------------------
94 dnl Default location is /usr/local/mmh/{bin,etc,lib,share/man}
95 dnl ----------------------------------------------------
96 AC_PREFIX_DEFAULT(/usr/local/mmh)
99 dnl ------------------
100 dnl CHECK THE COMPILER
101 dnl ------------------
102 dnl We want these before the checks,
103 dnl so the checks can modify their values.
104 test -z "$CFLAGS" && CFLAGS= auto_cflags=1
105 if test x"$enable_debug" = x"yes"; then
106 test -z "$LDFLAGS" && LDFLAGS=-g
111 AC_CACHE_CHECK(whether compiler supports -Wno-pointer-sign, nmh_cv_has_noptrsign,
112 [nmh_saved_cflags="$CFLAGS"
113 CFLAGS="$CFLAGS -Wno-pointer-sign"
114 AC_TRY_COMPILE([],[],nmh_cv_has_noptrsign=yes,nmh_cv_has_noptrsign=no)
115 CFLAGS="$nmh_saved_cflags"])
117 dnl if the user hasn't specified CFLAGS, then
118 dnl if compiler is gcc, then
119 dnl use -O2 and some warning flags
121 dnl We use -Wall; if the compiler supports it we also use -Wno-pointer-sign,
122 dnl because gcc 4 now produces a lot of new warnings which are probably mostly
123 dnl spurious and which in any case we don't want to deal with now.
124 if test "$nmh_cv_has_noptrsign" = "yes"; then
125 nmh_gcc_warnflags="-Wall -Wno-pointer-sign"
127 nmh_gcc_warnflags="-Wall"
130 if test -n "$auto_cflags"; then
131 if test x"$enable_debug" = x"yes"; then
132 if test -n "$GCC"; then
133 test -z "$CFLAGS" && CFLAGS="$nmh_gcc_warnflags -g" || CFLAGS="$CFLAGS $nmh_gcc_warnflags -g"
135 test -z "$CFLAGS" && CFLAGS=-g || CFLAGS="$CFLAGS -g"
138 if test -z "$LDFLAGS"; then
148 if test -n "$GCC"; then
149 test -z "$CFLAGS" && CFLAGS="$nmh_gcc_warnflags -O2" || CFLAGS="$CFLAGS $nmh_gcc_warnflags -O2"
151 test -z "$CFLAGS" && CFLAGS=-O || CFLAGS="$CFLAGS -O"
156 AC_C_CONST dnl Does compiler support `const'.
158 dnl ------------------
159 dnl CHECK FOR PROGRAMS
160 dnl ------------------
161 AC_PROG_MAKE_SET dnl Does make define $MAKE
162 AC_PROG_INSTALL dnl Check for BSD compatible `install'
163 AC_PROG_RANLIB dnl Check for `ranlib'
164 AC_PROG_AWK dnl Check for mawk,gawk,nawk, then awk
165 AC_PROG_LEX dnl Check for lex/flex
168 pathtmp=/usr/bin:/bin:/usr/local/bin:/usr/xpg4/bin:/usr/ucb
169 AC_PATH_PROG(cutpath, cut, no, [$pathtmp])
171 dnl ----------------------------------------------
172 dnl check for lclint, and lint if it doesn't exist
173 dnl ----------------------------------------------
174 AC_CHECK_PROG(linttmp1, lclint, lclint, no)dnl
175 if test x$ac_cv_prog_linttmp1 != xno ; then
176 LINT=$ac_cv_prog_linttmp1
177 LINTFLAGS="-weak +posixlib -macrovarprefixexclude"
179 AC_CHECK_PROG(linttmp2, lint, lint, no)dnl
180 if test x$ac_cv_prog_linttmp2 != xno ; then
181 LINT=$ac_cv_prog_linttmp2
184 LINT="echo 'No lint program found'"
189 AC_SUBST(LINTFLAGS)dnl
191 dnl try to figure out which one we've got
192 AC_CHECK_PROG(LIBTOOL, libtool, libtool, , [$pathtmp])
195 dnl Check for lorder and tsort commands
196 AC_CHECK_PROG(LORDER, lorder, lorder, no)dnl
197 AC_CHECK_PROG(TSORT, tsort, tsort, no)dnl
199 dnl If either doesn't exist, replace them with echo and cat
200 if test x$ac_cv_prog_LORDER != xlorder -o x$ac_cv_prog_TSORT != xtsort; then
205 dnl Mac OS X has lorder, but sh is too broken for it to work
206 dnl elif test -z "`lorder config/config.c 2>&1 | grep config/config.c`" ; then
209 dnl AC_SUBST(LORDER)dnl
210 dnl AC_SUBST(TSORT)dnl
213 dnl Check whether tsort can deal with loops
214 AC_CACHE_CHECK(whether tsort can deal with loops, nmh_cv_tsort_loop,
215 [if test -z "`echo a b b a | tsort 2>/dev/null | grep a`" ; then
218 nmh_cv_tsort_loop=yes
220 if test x$nmh_cv_tsort_loop = xno ; then
228 pathtmp=/usr/bin:/bin:/usr/local/bin:/usr/xpg4/bin:/usr/ucb
229 AC_PATH_PROG(lspath, ls, no, [$pathtmp])
231 dnl See how we get ls to display the owner and the group
232 if test "$lspath" != "no"; then
233 AC_CACHE_CHECK(how to get ls to show us the group ownership of a file,
235 [if test x"`$lspath -dl / | $AWK '{print $9}'`" = x"/"; then
236 dnl There were 9 parameters, so unless this is a really bizarre, nonstandard
237 dnl ls, it would seem -l gave us both the user and group. On this type of
238 dnl ls, -g makes _only_ the group be displayed (and not the user).
239 nmh_cv_ls_grpopt="-l"
241 dnl Looks like -l only gave us the user, so we need -g to get the group too.
242 nmh_cv_ls_grpopt="-lg"
246 dnl Look for `sendmail'
247 pathtmp=/usr/lib:/usr/sbin:/usr/etc:/usr/ucblib:/usr/bin:/bin
248 AC_PATH_PROG(sendmailpath, sendmail, /usr/sbin/sendmail, [$pathtmp])
251 pathtmp=/usr/bin:/bin:/usr/ucb:/usr/local/bin
252 AC_PATH_PROG(vipath, vi, /bin/vi, [$pathtmp])
254 dnl ----------------------------------------------------------
255 dnl FIND MAIL SPOOL AND SEE IF WE NEED TO MAKE inc SETGID MAIL
256 dnl ----------------------------------------------------------
257 AC_CACHE_CHECK(where mail spool is located, nmh_cv_mailspool,
258 [for mailspool in /var/mail dnl
261 /dev/null; dnl Just in case we fall through
263 test -d $mailspool && break
265 nmh_cv_mailspool=$mailspool
267 mailspool=$nmh_cv_mailspool
268 AC_SUBST(mailspool)dnl
270 dnl See whether the mail spool directory is world-writable.
271 if test "$lspath" != "no" -a "$cutpath" != "no"; then
272 AC_CACHE_CHECK(whether the mail spool is world-writable,
273 nmh_cv_mailspool_world_writable,
274 [if test "`$lspath -dlL $mailspool | $cutpath -c9`" = "-"; then
275 nmh_cv_mailspool_world_writable=no
277 nmh_cv_mailspool_world_writable=yes
281 dnl Also, check for liblockfile (as found on Debian systems)
282 AC_CHECK_HEADER(lockfile.h, AC_CHECK_LIB(lockfile, lockfile_create) )
284 dnl and whether its companion program dotlockfile is setgid
285 AC_PATH_PROG(dotlockfilepath, dotlockfile, no)
286 if test "$ac_cv_lib_lockfile_lockfile_create" != "no" ; then
287 if test "$ac_cv_path_dotlockfilepath" != "no" ; then
288 AC_CACHE_CHECK(whether dotlockfile is setgid, nmh_cv_dotlockfile_setgid,
289 [ if test -g "$ac_cv_path_dotlockfilepath" ; then
290 nmh_cv_dotlockfile_setgid=yes
292 nmh_cv_dotlockfile_setgid=no
297 dnl If mailspool is not world-writable and dotlockfile is not setgid,
298 dnl we need to #define MAILGROUP to 1 and make inc setgid.
299 if test x"$LOCKTYPE" = x"dot" -a x"$nmh_cv_mailspool_world_writable" = x"no" -a x"$nmh_cv_dotlockfile_setgid" != x"yes" ; then
300 dnl do we really need both of these?
301 AC_DEFINE(MAILGROUP,1,
302 [Define to 1 if you need to make `inc' set-group-id because your mail spool is not world writable. There are no guarantees as to the safety of doing this, but this #define will add some extra security checks.])dnl
305 AC_SUBST(SETGID_MAIL)dnl
307 dnl Use ls to see which group owns the mail spool directory.
308 AC_CACHE_CHECK(what group owns the mail spool, nmh_cv_ls_mail_grp,
309 [nmh_cv_ls_mail_grp=`$lspath -dL $nmh_cv_ls_grpopt $mailspool|$AWK '{print $4}'`
311 MAIL_SPOOL_GRP=$nmh_cv_ls_mail_grp
312 AC_SUBST(MAIL_SPOOL_GRP)dnl
314 dnl ------------------
315 dnl CHECK HEADER FILES
316 dnl ------------------
318 dnl On glibc we need to define at least the '_XOPEN_SOURCE' level of features,
319 dnl or wchar.h doesn't declare a prototype for wcwidth(). But if we only define
320 dnl that level then db.h won't compile. So we define _GNU_SOURCE which turns
321 dnl on everything. Perhaps other OSes need some feature switch set to get wcwidth()
322 dnl declared; if so they should have an entry added to this case statement.
323 dnl NB that we must define this on the compiler command line, not in config.h,
324 dnl because it must be set before any system header is included and there's no
325 dnl portable way to make sure that files generated by lex include config.h
326 dnl before system header files.
330 # Like DEFS, but doesn't get stomped on by configure when using config.h:
331 OURDEFS="$OURDEFS -D_GNU_SOURCE"
342 AC_CHECK_HEADERS(string.h memory.h stdlib.h unistd.h errno.h fcntl.h \
343 limits.h crypt.h termcap.h termio.h termios.h locale.h \
344 langinfo.h wchar.h wctype.h iconv.h netdb.h \
345 sys/param.h sys/time.h sys/utsname.h sys/stream.h \
346 arpa/inet.h arpa/ftp.h)
349 dnl Checks for _IO_write_ptr. A Linuxism used by nmh on linux. We
350 dnl really use a whole set of them, but this check should be
353 AC_CHECK_HEADER(libio.h, [
354 AC_EGREP_HEADER(_IO_write_ptr, libio.h, [
355 AC_DEFINE(LINUX_STDIO,1,[Use the Linux _IO_*_ptr defines from <libio.h>.]) ]) ])
357 AC_CHECK_HEADER([sys/ptem.h], AC_DEFINE(WINSIZE_IN_PTEM,1,
358 [Define to 1 if `struct winsize' requires <sys/ptem.h>.]),,
359 [[#if HAVE_SYS_STREAM_H
360 # include <sys/stream.h>
367 AC_CHECK_LIB(mkstemp,mkstemp)
368 AC_CHECK_FUNCS(waitpid sigaction sigprocmask sigblock sigsetmask \
369 sighold sigrelse lstat uname tzset killpg mkstemp \
370 getutent nl_langinfo mbtowc wcwidth)
372 dnl sigsetjmp may be a macro
373 AC_MSG_CHECKING(for sigsetjmp)
374 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <setjmp.h>]],
375 [[sigsetjmp((void *)0, 0);]])],[AC_DEFINE(HAVE_SIGSETJMP, 1,
376 [Define to 1 if you have the `sigsetjmp'.]) AC_MSG_RESULT(yes)],
379 AC_REPLACE_FUNCS(snprintf strdup)
381 dnl Look for the initgroups() declaration. On AIX 4.[13], Solaris 4.1.3, and
382 dnl ULTRIX 4.2A the function is defined in libc but there's no declaration in
383 dnl any system header.
385 dnl On Solaris 2.[456], the declaration is in <grp.h>. On HP-UX 9-11 and
386 dnl (reportedly) FreeBSD 3.[23], it's in <unistd.h>. Any other locations we
388 AH_TEMPLATE(INITGROUPS_HEADER, [Define to the header containing the declaration of `initgroups'.])
389 AC_EGREP_HEADER(initgroups, grp.h, AC_DEFINE(INITGROUPS_HEADER, <grp.h>),
390 AC_EGREP_HEADER(initgroups, unistd.h,
391 AC_DEFINE(INITGROUPS_HEADER, <unistd.h>)))
393 dnl On AIX 4.1, snprintf() is defined in libc.a but there's no prototype in
394 dnl <stdio.h> or elsewhere. Apparently it's not officially supported (though it
395 dnl seems to work perfectly and IBM apparently uses it in internal code).
396 dnl Anyhow, if we omit our own snprintf() and vsnprintf() prototypes when we
397 dnl HAVE_SNPRINTF, we get a billion warnings at compile time. Use the C
398 dnl preprocessor to preprocess stdio.h and make sure that there's actually a
400 AC_EGREP_HEADER(snprintf, stdio.h, AC_DEFINE(HAVE_SNPRINTF_PROTOTYPE,1,
401 [Define to 1 if <stdio.h> has a prototype for snprintf().]))
403 dnl Check for multibyte character set support
404 if test "x$ac_cv_header_wchar_h" = "xyes" -a "x$ac_cv_header_wctype_h" = "xyes" \
405 -a "x$ac_cv_func_wcwidth" = "xyes" -a "x$ac_cv_func_mbtowc" = "xyes"; then
406 AC_DEFINE(MULTIBYTE_SUPPORT, 1,
407 [Define to enable support for multibyte character sets.])
410 dnl -------------------
411 dnl CHECK FOR LIBRARIES
412 dnl -------------------
413 dnl Check location of modf
414 AC_CHECK_FUNC(modf, , AC_CHECK_LIB(m, modf))
416 dnl Checks for network libraries (nsl, socket)
419 termcap_curses_order="termcap curses ncurses"
420 for lib in $termcap_curses_order; do
421 AC_CHECK_LIB(${lib}, tgetent, [TERMLIB="-l$lib"; break])
429 dnl Find iconv. It may be in libiconv and may be iconv() or libiconv()
430 if test "x$ac_cv_header_iconv_h" = "xyes"; then
431 AC_CHECK_FUNC(iconv, ac_found_iconv=yes, ac_found_iconv=no)
432 if test "x$ac_found_iconv" = "xno"; then
433 AC_CHECK_LIB(iconv, iconv, ac_found_iconv=yes)
434 if test "x$ac_found_iconv" = "xno"; then
435 AC_CHECK_LIB(iconv, libiconv, ac_found_iconv=yes)
437 if test "x$ac_found_iconv" != "xno"; then
441 dnl Handle case where there is a native iconv but iconv.h is from libiconv
442 AC_CHECK_DECL(_libiconv_version,
443 [ AC_CHECK_LIB(iconv, libiconv, LIBS="-liconv $LIBS") ],,
444 [ #include <iconv.h> ])
447 if test "x$ac_found_iconv" = xyes; then
448 AC_DEFINE(HAVE_ICONV, 1, [Define if you have the iconv() function.])
451 dnl Check if iconv uses const in prototype declaration
452 if test "x$ac_found_iconv" = "xyes"; then
453 AC_CACHE_CHECK(for iconv declaration, ac_cv_iconv_const,
454 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <stdlib.h>
455 #include <iconv.h>]],
459 #if defined(__STDC__) || defined(__cplusplus)
460 size_t iconv (iconv_t cd, char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);
464 [ac_cv_iconv_const=],
465 [ac_cv_iconv_const=const])])
466 AC_DEFINE_UNQUOTED([ICONV_CONST], $ac_cv_iconv_const,
467 [Define as const if the declaration of iconv() needs const.])
471 dnl ---------------------
472 dnl CHECK TERMCAP LIBRARY
473 dnl ---------------------
475 dnl Add the termcap library, so that the following configure
476 dnl tests will find it when it tries to link test programs.
477 nmh_save_LIBS="$LIBS"
478 LIBS="$TERMLIB $LIBS"
480 dnl Checks for external variable ospeed in the termcap library.
481 AC_CACHE_CHECK(if an include file defines ospeed,
482 nmh_cv_decl_ospeed_include_defines,
483 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
485 # include <termios.h>
488 # include <termcap.h>
489 #endif]], [[ospeed = 0;]])],
490 nmh_cv_decl_ospeed_include_defines=yes,nmh_cv_decl_ospeed_include_defines=no)])
492 if test $nmh_cv_decl_ospeed_include_defines = no; then
493 AC_CACHE_CHECK(if you must define ospeed,
494 nmh_cv_decl_ospeed_must_define,
495 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
496 [[extern short ospeed; ospeed = 0;]])],
497 nmh_cv_decl_ospeed_must_define=yes,nmh_cv_decl_ospeed_must_define=no)])
500 AH_TEMPLATE(HAVE_OSPEED, [Define to 1 if your termcap library has the ospeed variable.])
501 if test $nmh_cv_decl_ospeed_include_defines = yes; then
502 AC_DEFINE(HAVE_OSPEED)dnl
503 elif test $nmh_cv_decl_ospeed_must_define = yes; then
504 AC_DEFINE(HAVE_OSPEED)
505 AC_DEFINE(MUST_DEFINE_OSPEED, 1,
506 [Define to 1 if you have ospeed, but it is not defined in termcap.h.])
509 dnl Check if tgetent accepts NULL (and will allocate its own termcap buffer)
510 dnl Some termcaps reportedly accept a zero buffer, but then dump core
512 dnl Under Cygwin test program crashes but exit code is still 0. So,
513 dnl we test for a file that porgram should create
514 AH_TEMPLATE([TGETENT_ACCEPTS_NULL],
515 [Define to 1 if tgetent() accepts NULL as a buffer.])
516 AC_CACHE_CHECK(if tgetent accepts NULL,
517 nmh_cv_func_tgetent_accepts_null,
522 int r1 = tgetent(buf, "vt100");
523 int r2 = tgetent(NULL,"vt100");
524 if (r1 >= 0 && r1 == r2) {
528 creat("conftest.tgetent", 0640);
530 exit((r1 != r2) || r2 == -1);
533 if test -f conftest.tgetent; then
534 nmh_cv_func_tgetent_accepts_null=yes
536 nmh_cv_func_tgetent_accepts_null=no
538 nmh_cv_func_tgetent_accepts_null=no,
539 nmh_cv_func_tgetent_accepts_null=no)])
540 if test x$nmh_cv_func_tgetent_accepts_null = xyes; then
541 AC_DEFINE(TGETENT_ACCEPTS_NULL)
543 AC_CACHE_CHECK(if tgetent returns 0 on success,
544 nmh_cv_func_tgetent_zero_success,
549 int r1 = tgetent(buf, "!@#$%^&*");
550 int r2 = tgetent(buf, "vt100");
551 if (r1 < 0 && r2 == 0) {
555 creat("conftest.tgetent0", 0640);
560 if test -f conftest.tgetent0; then
561 nmh_cv_func_tgetent_zero_success=yes
563 nmh_cv_func_tgetent_zero_success=no
565 nmh_cv_func_tgetent_zero_success=no,
566 nmh_cv_func_tgetent_zero_success=no)])
567 AH_TEMPLATE([TGETENT_SUCCESS],
568 [Define to what tgetent() returns on success (0 on HP-UX X/Open curses).])
569 if test x$nmh_cv_func_tgetent_zero_success = xyes; then
570 AC_DEFINE(TGETENT_SUCCESS, 0)
572 AC_DEFINE(TGETENT_SUCCESS, 1)
575 dnl Now put the libraries back to what it was before we
576 dnl starting checking the termcap library.
577 LIBS="$nmh_save_LIBS"
589 dnl Check for sigset_t. Currently I'm looking in
590 dnl <sys/types.h> and <signal.h>. Others might need
592 AC_CACHE_CHECK(for sigset_t, nmh_cv_type_sigset_t,
593 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
594 #include <signal.h>]], [[sigset_t tempsigset;]])],
595 nmh_cv_type_sigset_t=yes,nmh_cv_type_sigset_t=no)])
596 if test $nmh_cv_type_sigset_t = no; then
597 AC_DEFINE(sigset_t, unsigned int,
598 [Define to `unsigned int' if <sys/types.h> or <signal.h> doesn't define.])
604 AC_CHECK_MEMBERS(struct stat.st_blksize)
606 AC_CHECK_MEMBERS(struct tm.tm_gmtoff,,,
607 [#ifdef TIME_WITH_SYS_TIME
608 # include <sys/time.h>
611 # ifdef TM_IN_SYS_TIME
612 # include <sys/time.h>
618 AC_CHECK_MEMBERS(struct utmp.ut_type,,,[#include <utmp.h>])
620 AC_MSG_CHECKING(for union wait)
621 AC_CACHE_VAL(nmh_cv_union_wait, [dnl
622 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
623 #include <sys/wait.h>]],
624 [[union wait status; int pid; pid = wait (&status);
626 /* Some POSIXoid systems have both the new-style macros and the old
627 union wait type, and they do not work together. If union wait
628 conflicts with WEXITSTATUS et al, we don't want to use it at all. */
629 if (WEXITSTATUS (status) != 0) pid = -1;
631 /* If we have WEXITSTATUS and WTERMSIG, just use them on ints. */
632 -- blow chunks here --
636 /* Make sure union wait works with waitpid. */
637 pid = waitpid (-1, &status, 0);
640 [nmh_cv_union_wait=yes],
641 [nmh_cv_union_wait=no])])
642 if test "$nmh_cv_union_wait" = yes; then
643 AC_DEFINE(HAVE_UNION_WAIT, 1,
644 [Define to 1 if you have the \`union wait' type in <sys/wait.h>.])
646 AC_MSG_RESULT($nmh_cv_union_wait)
648 CHECK_TYPE_STRUCT_DIRENT_D_TYPE()
653 dnl What style of signal do you have (POSIX, BSD, or SYSV)?
654 AH_TEMPLATE(RELIABLE_SIGNALS, [Define to 1 if you have reliable signals.])
655 AC_MSG_CHECKING(what style of signals to use)
656 if test $ac_cv_func_sigaction = yes -a $ac_cv_func_sigprocmask = yes; then
657 signals_style=POSIX_SIGNALS
658 AC_DEFINE(POSIX_SIGNALS, 1,
659 [Define to 1 if you use POSIX style signal handling.])
660 AC_DEFINE(RELIABLE_SIGNALS)
661 elif test $ac_cv_func_sigblock = yes -a $ac_cv_func_sigsetmask = yes; then
662 signals_style=BSD_SIGNALS
663 AC_DEFINE(BSD_SIGNALS,1,
664 [Define to 1 if you use BSD style signal handling (and can block signals).])
665 AC_DEFINE(RELIABLE_SIGNALS)
666 elif test $ac_cv_func_sighold = yes -a $ac_cv_func_sigrelse = yes; then
667 signals_style=SYSV_SIGNALS
668 AC_DEFINE(SYSV_SIGNALS,1,
669 [Define to 1 if you use SYSV style signal handling (and can block signals).])
671 signals_style=NO_SIGNAL_BLOCKING
672 AC_DEFINE(NO_SIGNAL_BLOCKING,1,
673 [Define to 1 if you have no signal blocking at all (bummer).])
676 AC_MSG_RESULT($signals_style)
678 dnl Where is <signal.h> located? Needed as input for signames.awk
679 AC_CACHE_CHECK(where signal.h is located, nmh_cv_path_signal_h,
680 [for SIGNAL_H in /usr/include/bsd/sys/signal.h dnl Next
681 /usr/include/asm/signal.h dnl Linux 1.3.0 and above
682 /usr/include/asm/signum.h dnl some versions of Linux/Alpha
683 /usr/include/linux/signal.h dnl Linux up to 1.2.11
684 /usr/include/sys/signal.h dnl Almost everybody else
685 /dev/null; dnl Just in case we fall through
687 test -f $SIGNAL_H && \
688 grep '#[ ]*define[ ][ ]*SIG[0-9A-Z]*[ ]*[0-9][0-9]*' $SIGNAL_H > /dev/null && \
691 nmh_cv_path_signal_h=$SIGNAL_H
693 SIGNAL_H=$nmh_cv_path_signal_h
694 AC_SUBST(SIGNAL_H)dnl
697 dnl OS SPECIFIC DEFINES
699 AH_TEMPLATE(BSD42, [Defined for SunOS 4, FreeBSD, NetBSD, OpenBSD, BSD/OS, Mac OS X/Rhapsody -- does PicoBSD have uname?])
700 AH_TEMPLATE(SCO_5_STDIO, [Defined for SCO5.])
720 AC_DEFINE(SCO_5_STDIO)
728 AC_CONFIG_FILES(Makefile config/Makefile h/Makefile sbr/Makefile uip/Makefile \
729 etc/Makefile docs/Makefile man/Makefile)
730 AC_CONFIG_COMMANDS([stamp],[test -z "$CONFIG_HEADERS" || echo > stamp-h])
733 dnl These odd looking assignments are done to expand out unexpanded
734 dnl variables in bindir et al (for instance mandir is '${datarootdir}/man',
735 dnl but expanding that gives '${prefix}/share/man', so we need to expand
736 dnl again to get the final answer.
737 dnl We only use the expanded versions to print the install paths in
738 dnl the final summary and should use them nowhere else (see the autoconf
739 dnl docs for the rationale for bindir etc being unexpanded).
740 eval "nmhbin=${bindir}"; eval "nmhbin=${nmhbin}"
741 eval "nmhsysconf=${sysconfdir}"; eval "nmhsysconf=${nmhsysconf}"
742 eval "nmhlib=${libdir}"; eval "nmhlib=${nmhlib}"
743 eval "nmhman=${mandir}"; eval "nmhman=${nmhman}"
748 mmh version : AC_PACKAGE_VERSION
749 target os : ${target}
751 compiler flags : ${CFLAGS}
752 linker flags : ${LDFLAGS}
753 definitions : ${OURDEFS}
754 source code location : ${srcdir}
756 binary install path : ${nmhbin}
757 library install path : ${nmhlib}
758 config install path : ${nmhsysconf}
759 man page install path : ${nmhman}
761 sendmail path : ${sendmailpath}
762 mail spool : ${mailspool}
764 file locking type : ${LOCKTYPE}