2 dnl configure.ac -- autoconf template for mmh
7 dnl (I was able to configure with autoconf-2.59 --meillo 2012-03-22)
9 AC_INIT(mmh, m4_normalize(m4_include([VERSION])))
10 AC_CONFIG_SRCDIR(h/mh.h)
11 AC_CONFIG_HEADER(config.h)
15 dnl ---------------------
16 dnl define a macro or two
17 dnl ---------------------
19 AC_DEFUN(NMH_PROG_GNU_LIBTOOL, [
20 if test -n "$LIBTOOL" ; then
21 tmptest=`$LIBTOOL --version 2>&1 | grep GNU`
22 if test x"$tmptest" != x ; then
24 AC_SUBST(GNU_LIBTOOL)dnl
29 echo "configuring for AC_PACKAGE_NAME-AC_PACKAGE_VERSION"
30 AC_SUBST(VERSION,AC_PACKAGE_VERSION)dnl
32 dnl What date of mmh are we building?
33 DATE=`cat ${srcdir}/DATE`
34 echo "configuring for mmh dated $DATE"
37 dnl --------------------------
38 dnl CHECK COMMAND LINE OPTIONS
39 dnl --------------------------
41 dnl Do you want to debug mmh?
43 AS_HELP_STRING([--enable-debug],[enable nmh code debugging]))
44 dnl The old redundant --enable-nmh-debug is deprecated and undocumented.
45 if test x"$enable_nmh_debug" = x"yes"; then
49 dnl What method of locking to use?
51 AS_HELP_STRING([--with-locking=@<:@dot|fcntl|flock|lockf@:>@],
52 [specify the file locking method]))
54 if test x"$with_locking" = x"dot"; then
56 AC_DEFINE(DOT_LOCKING, 1, [Define to use dot based file locking.])dnl
57 elif test x"$with_locking" = x"flock"; then
59 AC_DEFINE(FLOCK_LOCKING, 1, [Define to use flock() based locking.])dnl
60 elif test x"$with_locking" = x"lockf"; then
62 AC_DEFINE(LOCKF_LOCKING, 1, [Define to use lockf() based locking.])dnl
63 elif test x"$with_locking" = x"fcntl"; then
65 AC_DEFINE(FCNTL_LOCKING, 1, [Define to use fnctl() based locking.])dnl
68 AC_DEFINE(DOT_LOCKING)dnl
72 dnl ----------------------------------------------------
73 dnl Default location is /usr/local/mmh/{bin,etc,lib,share/man}
74 dnl ----------------------------------------------------
75 AC_PREFIX_DEFAULT(/usr/local/mmh)
78 dnl ------------------
79 dnl CHECK THE COMPILER
80 dnl ------------------
81 dnl We want these before the checks,
82 dnl so the checks can modify their values.
83 test -z "$CFLAGS" && CFLAGS= auto_cflags=1
84 if test x"$enable_debug" = x"yes"; then
85 test -z "$LDFLAGS" && LDFLAGS=-g
90 AC_CACHE_CHECK(whether compiler supports -Wno-pointer-sign, nmh_cv_has_noptrsign,
91 [nmh_saved_cflags="$CFLAGS"
92 CFLAGS="$CFLAGS -Wno-pointer-sign"
93 AC_TRY_COMPILE([],[],nmh_cv_has_noptrsign=yes,nmh_cv_has_noptrsign=no)
94 CFLAGS="$nmh_saved_cflags"])
96 dnl if the user hasn't specified CFLAGS, then
97 dnl if compiler is gcc, then
98 dnl use -O2 and some warning flags
100 dnl We use -Wall; if the compiler supports it we also use -Wno-pointer-sign,
101 dnl because gcc 4 now produces a lot of new warnings which are probably mostly
102 dnl spurious and which in any case we don't want to deal with now.
103 if test "$nmh_cv_has_noptrsign" = "yes"; then
104 nmh_gcc_warnflags="-Wall -Wno-pointer-sign"
106 nmh_gcc_warnflags="-Wall"
109 if test -n "$auto_cflags"; then
110 if test x"$enable_debug" = x"yes"; then
111 if test -n "$GCC"; then
112 test -z "$CFLAGS" && CFLAGS="$nmh_gcc_warnflags -g" || CFLAGS="$CFLAGS $nmh_gcc_warnflags -g"
114 test -z "$CFLAGS" && CFLAGS=-g || CFLAGS="$CFLAGS -g"
117 if test -z "$LDFLAGS"; then
127 if test -n "$GCC"; then
128 test -z "$CFLAGS" && CFLAGS="$nmh_gcc_warnflags -O2" || CFLAGS="$CFLAGS $nmh_gcc_warnflags -O2"
130 test -z "$CFLAGS" && CFLAGS=-O || CFLAGS="$CFLAGS -O"
135 AC_C_CONST dnl Does compiler support `const'.
137 dnl ------------------
138 dnl CHECK FOR PROGRAMS
139 dnl ------------------
140 AC_PROG_MAKE_SET dnl Does make define $MAKE
141 AC_PROG_INSTALL dnl Check for BSD compatible `install'
142 AC_PROG_RANLIB dnl Check for `ranlib'
143 AC_PROG_AWK dnl Check for mawk,gawk,nawk, then awk
144 AC_PROG_LEX dnl Check for lex/flex
147 pathtmp=/usr/bin:/bin:/usr/local/bin:/usr/xpg4/bin:/usr/ucb
148 AC_PATH_PROG(cutpath, cut, no, [$pathtmp])
150 dnl ----------------------------------------------
151 dnl check for lclint, and lint if it doesn't exist
152 dnl ----------------------------------------------
153 AC_CHECK_PROG(linttmp1, lclint, lclint, no)dnl
154 if test x$ac_cv_prog_linttmp1 != xno ; then
155 LINT=$ac_cv_prog_linttmp1
156 LINTFLAGS="-weak +posixlib -macrovarprefixexclude"
158 AC_CHECK_PROG(linttmp2, lint, lint, no)dnl
159 if test x$ac_cv_prog_linttmp2 != xno ; then
160 LINT=$ac_cv_prog_linttmp2
163 LINT="echo 'No lint program found'"
168 AC_SUBST(LINTFLAGS)dnl
170 dnl try to figure out which one we've got
171 AC_CHECK_PROG(LIBTOOL, libtool, libtool, , [$pathtmp])
174 dnl Check for lorder and tsort commands
175 AC_CHECK_PROG(LORDER, lorder, lorder, no)dnl
176 AC_CHECK_PROG(TSORT, tsort, tsort, no)dnl
178 dnl If either doesn't exist, replace them with echo and cat
179 if test x$ac_cv_prog_LORDER != xlorder -o x$ac_cv_prog_TSORT != xtsort; then
184 dnl Mac OS X has lorder, but sh is too broken for it to work
185 dnl elif test -z "`lorder config/config.c 2>&1 | grep config/config.c`" ; then
188 dnl AC_SUBST(LORDER)dnl
189 dnl AC_SUBST(TSORT)dnl
192 dnl Check whether tsort can deal with loops
193 AC_CACHE_CHECK(whether tsort can deal with loops, nmh_cv_tsort_loop,
194 [if test -z "`echo a b b a | tsort 2>/dev/null | grep a`" ; then
197 nmh_cv_tsort_loop=yes
199 if test x$nmh_cv_tsort_loop = xno ; then
207 pathtmp=/usr/bin:/bin:/usr/local/bin:/usr/xpg4/bin:/usr/ucb
208 AC_PATH_PROG(lspath, ls, no, [$pathtmp])
210 dnl See how we get ls to display the owner and the group
211 if test "$lspath" != "no"; then
212 AC_CACHE_CHECK(how to get ls to show us the group ownership of a file,
214 [if test x"`$lspath -dl / | $AWK '{print $9}'`" = x"/"; then
215 dnl There were 9 parameters, so unless this is a really bizarre, nonstandard
216 dnl ls, it would seem -l gave us both the user and group. On this type of
217 dnl ls, -g makes _only_ the group be displayed (and not the user).
218 nmh_cv_ls_grpopt="-l"
220 dnl Looks like -l only gave us the user, so we need -g to get the group too.
221 nmh_cv_ls_grpopt="-lg"
225 dnl Look for `sendmail'
226 pathtmp=/usr/lib:/usr/sbin:/usr/etc:/usr/ucblib:/usr/bin:/bin
227 AC_PATH_PROG(sendmailpath, sendmail, /usr/sbin/sendmail, [$pathtmp])
230 pathtmp=/usr/bin:/bin:/usr/ucb:/usr/local/bin
231 AC_PATH_PROG(vipath, vi, /bin/vi, [$pathtmp])
233 dnl ----------------------------------------------------------
234 dnl FIND MAIL SPOOL AND SEE IF WE NEED TO MAKE inc SETGID MAIL
235 dnl ----------------------------------------------------------
236 AC_CACHE_CHECK(where mail spool is located, nmh_cv_mailspool,
237 [for mailspool in /var/mail dnl
240 /dev/null; dnl Just in case we fall through
242 test -d $mailspool && break
244 nmh_cv_mailspool=$mailspool
246 mailspool=$nmh_cv_mailspool
247 AC_SUBST(mailspool)dnl
249 dnl See whether the mail spool directory is world-writable.
250 if test "$lspath" != "no" -a "$cutpath" != "no"; then
251 AC_CACHE_CHECK(whether the mail spool is world-writable,
252 nmh_cv_mailspool_world_writable,
253 [if test "`$lspath -dl $mailspool/ | $cutpath -c9`" = "-"; then
254 nmh_cv_mailspool_world_writable=no
256 nmh_cv_mailspool_world_writable=yes
260 dnl Also, check for liblockfile (as found on Debian systems)
261 AC_CHECK_HEADER(lockfile.h, AC_CHECK_LIB(lockfile, lockfile_create) )
263 dnl and whether its companion program dotlockfile is setgid
264 AC_PATH_PROG(dotlockfilepath, dotlockfile, no)
265 if test "$ac_cv_lib_lockfile_lockfile_create" != "no" ; then
266 if test "$ac_cv_path_dotlockfilepath" != "no" ; then
267 AC_CACHE_CHECK(whether dotlockfile is setgid, nmh_cv_dotlockfile_setgid,
268 [ if test -g "$ac_cv_path_dotlockfilepath" ; then
269 nmh_cv_dotlockfile_setgid=yes
271 nmh_cv_dotlockfile_setgid=no
276 dnl If mailspool is not world-writable and dotlockfile is not setgid,
277 dnl we need to #define MAILGROUP to 1 and make inc setgid.
278 if test x"$LOCKTYPE" = x"dot" -a x"$nmh_cv_mailspool_world_writable" = x"no" -a x"$nmh_cv_dotlockfile_setgid" != x"yes" ; then
279 dnl do we really need both of these?
280 AC_DEFINE(MAILGROUP,1,
281 [Define to 1 if you need to make `inc' set-group-id because your mail spool is not world writable. There are no guarantees as to the safety of doing this, but this #define will add some extra security checks.])dnl
284 AC_SUBST(SETGID_MAIL)dnl
286 dnl Use ls to see which group owns the mail spool directory.
287 AC_CACHE_CHECK(what group owns the mail spool, nmh_cv_ls_mail_grp,
288 [nmh_cv_ls_mail_grp=`$lspath -dL $nmh_cv_ls_grpopt $mailspool|$AWK '{print $4}'`
290 MAIL_SPOOL_GRP=$nmh_cv_ls_mail_grp
291 AC_SUBST(MAIL_SPOOL_GRP)dnl
293 dnl ------------------
294 dnl CHECK HEADER FILES
295 dnl ------------------
297 dnl On glibc we need to define at least the '_XOPEN_SOURCE' level of features,
298 dnl or wchar.h doesn't declare a prototype for wcwidth(). But if we only define
299 dnl that level then db.h won't compile. So we define _GNU_SOURCE which turns
300 dnl on everything. Perhaps other OSes need some feature switch set to get wcwidth()
301 dnl declared; if so they should have an entry added to this case statement.
302 dnl NB that we must define this on the compiler command line, not in config.h,
303 dnl because it must be set before any system header is included and there's no
304 dnl portable way to make sure that files generated by lex include config.h
305 dnl before system header files.
309 # Like DEFS, but doesn't get stomped on by configure when using config.h:
310 OURDEFS="$OURDEFS -D_GNU_SOURCE"
317 AC_CHECK_HEADERS(fcntl.h crypt.h termcap.h \
318 langinfo.h wchar.h wctype.h iconv.h \
319 sys/param.h sys/time.h sys/stream.h )
321 AC_CHECK_HEADER([sys/ptem.h], AC_DEFINE(WINSIZE_IN_PTEM,1,
322 [Define to 1 if `struct winsize' requires <sys/ptem.h>.]),,
323 [[#if HAVE_SYS_STREAM_H
324 # include <sys/stream.h>
331 AC_CHECK_FUNCS(nl_langinfo mbtowc wcwidth)
333 dnl Look for the initgroups() declaration. On AIX 4.[13], Solaris 4.1.3, and
334 dnl ULTRIX 4.2A the function is defined in libc but there's no declaration in
335 dnl any system header.
337 dnl On Solaris 2.[456], the declaration is in <grp.h>. On HP-UX 9-11 and
338 dnl (reportedly) FreeBSD 3.[23], it's in <unistd.h>. Any other locations we
340 AH_TEMPLATE(INITGROUPS_HEADER, [Define to the header containing the declaration of `initgroups'.])
341 AC_EGREP_HEADER(initgroups, grp.h, AC_DEFINE(INITGROUPS_HEADER, <grp.h>),
342 AC_EGREP_HEADER(initgroups, unistd.h,
343 AC_DEFINE(INITGROUPS_HEADER, <unistd.h>)))
345 dnl Check for multibyte character set support
346 if test "x$ac_cv_header_wchar_h" = "xyes" -a "x$ac_cv_header_wctype_h" = "xyes" \
347 -a "x$ac_cv_func_wcwidth" = "xyes" -a "x$ac_cv_func_mbtowc" = "xyes"; then
348 AC_DEFINE(MULTIBYTE_SUPPORT, 1,
349 [Define to enable support for multibyte character sets.])
352 dnl -------------------
353 dnl CHECK FOR LIBRARIES
354 dnl -------------------
355 dnl Check location of modf
356 AC_CHECK_FUNC(modf, , AC_CHECK_LIB(m, modf))
358 dnl Checks for network libraries (nsl, socket)
361 termcap_curses_order="termcap curses ncurses"
362 for lib in $termcap_curses_order; do
363 AC_CHECK_LIB(${lib}, tgetent, [TERMLIB="-l$lib"; break])
366 if test "x$TERMLIB" = "x"; then
367 echo 'Could not find tgetent() in any library.'
368 echo 'Is there a ncurses-devel package that you can install?'
377 dnl Find iconv. It may be in libiconv and may be iconv() or libiconv()
378 if test "x$ac_cv_header_iconv_h" = "xyes"; then
379 AC_CHECK_FUNC(iconv, ac_found_iconv=yes, ac_found_iconv=no)
380 if test "x$ac_found_iconv" = "xno"; then
381 AC_CHECK_LIB(iconv, iconv, ac_found_iconv=yes)
382 if test "x$ac_found_iconv" = "xno"; then
383 AC_CHECK_LIB(iconv, libiconv, ac_found_iconv=yes)
385 if test "x$ac_found_iconv" != "xno"; then
389 dnl Handle case where there is a native iconv but iconv.h is from libiconv
390 AC_CHECK_DECL(_libiconv_version,
391 [ AC_CHECK_LIB(iconv, libiconv, LIBS="-liconv $LIBS") ],,
392 [ #include <iconv.h> ])
395 if test "x$ac_found_iconv" = xyes; then
396 AC_DEFINE(HAVE_ICONV, 1, [Define if you have the iconv() function.])
399 dnl Check if iconv uses const in prototype declaration
400 if test "x$ac_found_iconv" = "xyes"; then
401 AC_CACHE_CHECK(for iconv declaration, ac_cv_iconv_const,
402 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <stdlib.h>
403 #include <iconv.h>]],
407 #if defined(__STDC__) || defined(__cplusplus)
408 size_t iconv (iconv_t cd, char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);
412 [ac_cv_iconv_const=],
413 [ac_cv_iconv_const=const])])
414 AC_DEFINE_UNQUOTED([ICONV_CONST], $ac_cv_iconv_const,
415 [Define as const if the declaration of iconv() needs const.])
419 dnl ---------------------
420 dnl CHECK TERMCAP LIBRARY
421 dnl ---------------------
423 dnl Add the termcap library, so that the following configure
424 dnl tests will find it when it tries to link test programs.
425 nmh_save_LIBS="$LIBS"
426 LIBS="$TERMLIB $LIBS"
428 dnl Check if tgetent accepts NULL (and will allocate its own termcap buffer)
429 dnl Some termcaps reportedly accept a zero buffer, but then dump core
431 dnl Under Cygwin test program crashes but exit code is still 0. So,
432 dnl we test for a file that porgram should create
433 AH_TEMPLATE([TGETENT_ACCEPTS_NULL],
434 [Define to 1 if tgetent() accepts NULL as a buffer.])
435 AC_CACHE_CHECK(if tgetent accepts NULL,
436 nmh_cv_func_tgetent_accepts_null,
441 int r1 = tgetent(buf, "vt100");
442 int r2 = tgetent(NULL,"vt100");
443 if (r1 >= 0 && r1 == r2) {
447 creat("conftest.tgetent", 0640);
449 exit((r1 != r2) || r2 == -1);
452 if test -f conftest.tgetent; then
453 nmh_cv_func_tgetent_accepts_null=yes
455 nmh_cv_func_tgetent_accepts_null=no
457 nmh_cv_func_tgetent_accepts_null=no,
458 nmh_cv_func_tgetent_accepts_null=no)])
459 if test x$nmh_cv_func_tgetent_accepts_null = xyes; then
460 AC_DEFINE(TGETENT_ACCEPTS_NULL)
462 AC_CACHE_CHECK(if tgetent returns 0 on success,
463 nmh_cv_func_tgetent_zero_success,
468 int r1 = tgetent(buf, "!@#$%^&*");
469 int r2 = tgetent(buf, "vt100");
470 if (r1 < 0 && r2 == 0) {
474 creat("conftest.tgetent0", 0640);
479 if test -f conftest.tgetent0; then
480 nmh_cv_func_tgetent_zero_success=yes
482 nmh_cv_func_tgetent_zero_success=no
484 nmh_cv_func_tgetent_zero_success=no,
485 nmh_cv_func_tgetent_zero_success=no)])
486 AH_TEMPLATE([TGETENT_SUCCESS],
487 [Define to what tgetent() returns on success (0 on HP-UX X/Open curses).])
488 if test x$nmh_cv_func_tgetent_zero_success = xyes; then
489 AC_DEFINE(TGETENT_SUCCESS, 0)
491 AC_DEFINE(TGETENT_SUCCESS, 1)
494 dnl Now put the libraries back to what it was before we
495 dnl starting checking the termcap library.
496 LIBS="$nmh_save_LIBS"
511 dnl For platforms such as FreeBSD that have tm_gmtoff in struct tm.
512 dnl (FreeBSD has a timezone() function but not a timezone global
513 dnl variable that is visible).
514 AC_CHECK_MEMBERS([struct tm.tm_gmtoff],,,[#include <time.h>])
516 AC_STRUCT_DIRENT_D_TYPE
518 dnl Where is <signal.h> located? Needed as input for signames.awk
519 AC_CACHE_CHECK(where signal.h is located, nmh_cv_path_signal_h,
520 [for SIGNAL_H in /usr/include/bsd/sys/signal.h dnl Next
521 /usr/include/asm/signal.h dnl Linux 1.3.0 and above
522 /usr/include/asm/signum.h dnl some versions of Linux/Alpha
523 /usr/include/linux/signal.h dnl Linux up to 1.2.11
524 /usr/include/sys/signal.h dnl Almost everybody else
525 /dev/null; dnl Just in case we fall through
527 test -f $SIGNAL_H && \
528 grep '#[ ]*define[ ][ ]*SIG[0-9A-Z]*[ ]*[0-9][0-9]*' $SIGNAL_H > /dev/null && \
531 nmh_cv_path_signal_h=$SIGNAL_H
533 SIGNAL_H=$nmh_cv_path_signal_h
534 AC_SUBST(SIGNAL_H)dnl
540 AC_CONFIG_FILES(Makefile config/Makefile h/Makefile sbr/Makefile uip/Makefile \
541 etc/Makefile docs/Makefile man/Makefile)
542 AC_CONFIG_COMMANDS([stamp],[test -z "$CONFIG_HEADERS" || echo > stamp-h])
545 dnl These odd looking assignments are done to expand out unexpanded
546 dnl variables in bindir et al (for instance mandir is '${datarootdir}/man',
547 dnl but expanding that gives '${prefix}/share/man', so we need to expand
548 dnl again to get the final answer.
549 dnl We only use the expanded versions to print the install paths in
550 dnl the final summary and should use them nowhere else (see the autoconf
551 dnl docs for the rationale for bindir etc being unexpanded).
552 eval "nmhbin=${bindir}"; eval "nmhbin=${nmhbin}"
553 eval "nmhsysconf=${sysconfdir}"; eval "nmhsysconf=${nmhsysconf}"
554 eval "nmhlib=${libdir}"; eval "nmhlib=${nmhlib}"
555 eval "nmhman=${mandir}"; eval "nmhman=${nmhman}"
560 mmh version : AC_PACKAGE_VERSION
561 target os : ${target}
563 compiler flags : ${CFLAGS}
564 linker flags : ${LDFLAGS}
565 definitions : ${OURDEFS}
566 source code location : ${srcdir}
568 binary install path : ${nmhbin}
569 library install path : ${nmhlib}
570 config install path : ${nmhsysconf}
571 man page install path : ${nmhman}
573 sendmail path : ${sendmailpath}
574 mail spool : ${mailspool}
576 file locking type : ${LOCKTYPE}