2 dnl configure.ac -- autoconf template for nmh
8 AC_INIT([nmh], m4_normalize(m4_include([VERSION])), [nmh-workers@nongnu.org])
9 AC_CONFIG_SRCDIR([h/nmh.h])
10 AC_CONFIG_HEADER([config.h])
11 AM_INIT_AUTOMAKE([-Wall foreign subdir-objects])
15 AC_MSG_NOTICE([configuring for AC_PACKAGE_NAME-AC_PACKAGE_VERSION])
16 AC_SUBST(VERSION,AC_PACKAGE_VERSION)dnl
18 dnl What date of nmh are we building?
19 DATE=`cat ${srcdir}/DATE`
20 AC_MSG_NOTICE([configuring for nmh dated $DATE])
23 dnl --------------------------
24 dnl CHECK COMMAND LINE OPTIONS
25 dnl --------------------------
27 dnl Do you want to debug nmh?
28 AC_ARG_ENABLE([debug],
29 AS_HELP_STRING([--enable-debug],[enable nmh code debugging]))
30 dnl The old redundant --enable-nmh-debug is deprecated and undocumented.
31 AS_IF([test x"$enable_nmh_debug" = x"yes"], [enable_debug=yes])
33 dnl Do you want to disable use of locale functions
35 [Undefine if you don't want locale features. By default this is defined.])
36 AC_ARG_ENABLE([locale],
37 [AS_HELP_STRING([--disable-locale], [turn off locale features])],
38 [AS_IF([test x$enableval = xyes], [AC_DEFINE(LOCALE)])],
41 dnl Do you want client-side support for using SASL for authentication?
42 dnl Note that this code will be enabled for both POP and SMTP
43 AC_ARG_WITH([cyrus-sasl], AS_HELP_STRING([--with-cyrus-sasl],
44 [Enable SASL support via the Cyrus SASL library]))
45 AS_IF([test x"$with_cyrus_sasl" != x -a x"$with_cyrus_sasl" != x"no"],[
46 AC_DEFINE([CYRUS_SASL], [1],
47 [Define to use the Cyrus SASL library for authentication of POP and SMTP.])dnl
48 AS_IF([test x"$with_cyrus_sasl" != xyes],[
49 AC_MSG_WARN([Arguments to --with-cyrus-sasl now ignored])
50 AC_MSG_WARN([Please pass the appropriate arguments to CPPFLAGS/LDFLAGS])])
51 sasl_support=yes], [sasl_support=no])
53 dnl Do you want client-side support for encryption with TLS?
54 AC_ARG_WITH([tls], AS_HELP_STRING([--with-tls], [Enable TLS support]))
55 AS_IF([test x"$with_tls" != x -a x"$with_tls" != x"no"],[
56 AC_DEFINE([TLS_SUPPORT], [1], [Support TLS for session encryption.])dnl
57 tls_support=yes],[tls_support=no])
59 dnl What should be the default editor?
61 AS_HELP_STRING([--with-editor=EDITOR],[specify the default editor]))
63 AS_IF([test -n "$with_editor"], [editorpath="$with_editor"])
65 dnl Set the backup prefix
66 AC_ARG_WITH([hash-backup],
67 AS_HELP_STRING([--with-hash-backup],[use # as the backup prefix (default: ,)]))
68 AS_IF([test x"$with_hash_backup" != x -a x"$with_hash_backup" != x"no"],
69 [backup_prefix="#"], [backup_prefix=","])
70 AC_DEFINE_UNQUOTED([BACKUP_PREFIX], "$backup_prefix",
71 [The prefix that is prepended to the name of message files when they are "removed" by rmm. This should typically be `,' or `#'.])dnl
73 dnl What method of locking to use?
75 [aix*|cygwin*|linux*],
76 [default_locktype="fcntl"; default_locking=FCNTL_LOCKING],
77 [freebsd*|openbsd*|darwin*], [default_locktype="flock"; default_locking=FLOCK_LOCKING],
78 [default_locktype="dot"; default_locking=DOT_LOCKING])
81 AS_HELP_STRING([--with-locking=@<:@dot|fcntl|flock|lockf@:>@],
82 [specify the file locking method]))
84 if test x"$with_locking" = x"dot"; then
86 AC_DEFINE(DOT_LOCKING, 1, [Define to use dot based file locking.])dnl
87 elif test x"$with_locking" = x"flock"; then
89 AC_DEFINE(FLOCK_LOCKING, 1, [Define to use flock() based locking.])dnl
90 elif test x"$with_locking" = x"lockf"; then
92 AC_DEFINE(LOCKF_LOCKING, 1, [Define to use lockf() based locking.])dnl
93 elif test x"$with_locking" = x"fcntl"; then
95 AC_DEFINE(FCNTL_LOCKING, 1, [Define to use fnctl() based locking.])dnl
97 LOCKTYPE="$default_locktype"
98 AC_DEFINE_UNQUOTED($default_locking, 1)dnl
101 dnl Should we use a locking directory?
102 AC_ARG_ENABLE([lockdir],
103 [AS_HELP_STRING([--enable-lockdir=dir], [Store dot-lock files in "dir"])], [
104 AS_IF([test "x$enableval" = xyes],[
105 AC_MSG_ERROR([--enable-lockdir requires an argument])])
106 AS_IF([test "x$LOCKTYPE" != xdot],[
107 AC_MSG_ERROR([Can only use --enable-lockdir with dot locking])])
108 AC_DEFINE_UNQUOTED([LOCKDIR], ["$enableval"],
109 [Directory to store dot-locking lock files])
112 dnl What method of posting should post use?
114 AS_HELP_STRING([--with-mts=@<:@smtp|sendmail/smtp|sendmail/pipe@:>@],
115 [specify the default mail transport agent/service]))
117 AS_IF([test x"$with_mts" = x"smtp"], [MTS="smtp"],
118 [test x"$with_mts" = x"sendmail"], [MTS="sendmail/smtp"],
119 [test x"$with_mts" = x"sendmail/smtp"], [MTS="sendmail/smtp"],
120 [test x"$with_mts" = x"sendmail/pipe"], [MTS="sendmail/pipe"],
124 dnl What should be the default pager?
126 AS_HELP_STRING([--with-pager=PAGER],[specify the default pager]))
128 AS_IF([test -n "$with_pager"], [pagerpath="$with_pager"])
130 dnl If a pager is not explicitly specified, then look for one.
131 dnl Fall back to `cat', to avoid catastrophic failure of
132 dnl `mhshow', et al., if pagerpath is set to `no'.
133 if test -z "$pagerpath"; then
134 pathtmp=/usr/bin:/bin:/usr/ucb:/usr/local/bin
135 AC_PATH_PROGS([pagerpath], [more less most cat], [no], [$pathtmp])
137 AC_SUBST(pagerpath)dnl
139 dnl What should be the default mail server(s)?
140 AC_ARG_WITH(smtpservers,
141 AS_HELP_STRING([--with-smtpservers='SMTPSERVER1@<:@ SMTPSERVER2...@:>@'],
142 [specify the default SMTP server(s) @<:@localhost@:>@]))
143 AS_IF([test -n "$with_smtpservers"], [smtpservers="$with_smtpservers"],
144 [smtpservers="localhost"])
145 AC_SUBST([smtpservers])dnl
147 dnl ----------------------------------------------------
148 dnl Default location is /usr/local/nmh/{bin,etc,lib,man}
149 dnl ----------------------------------------------------
150 AC_PREFIX_DEFAULT([/usr/local/nmh])
152 dnl ------------------
153 dnl CHECK THE COMPILER
154 dnl ------------------
155 dnl We want these before the checks,
156 dnl so the checks can modify their values.
157 test -z "$CFLAGS" && CFLAGS= auto_cflags=1
158 if test x"$enable_debug" = x"yes"; then
159 test -z "$LDFLAGS" && LDFLAGS=-g
165 AC_CACHE_CHECK([whether preprocessor supports -Wunused-macros],
166 [nmh_cv_has_unusedmacros],
167 [nmh_saved_cppflags="$CPPFLAGS"
168 CPPFLAGS="$CPPFLAGS -Wunused-macros -Wno-unused-macros"
169 AC_TRY_COMPILE([],[],nmh_cv_has_unusedmacros=yes,nmh_cv_has_unusedmacros=no)
170 CPPFLAGS="$nmh_saved_cppflags"])
172 if test "$nmh_cv_has_unusedmacros" = 'yes'; then
173 test -z "$CPPFLAGS" && CPPFLAGS=-Wunused-macros \
174 || CPPFLAGS="$CPPFLAGS -Wunused-macros"
175 DISABLE_UNUSED_MACROS_WARNING=-Wno-unused-macros
177 AC_SUBST(DISABLE_UNUSED_MACROS_WARNING)dnl
179 AC_CACHE_CHECK([whether compiler supports -Wno-sign-compare],
180 [nmh_cv_has_nosigncompare],
181 [nmh_saved_cppflags="$CPPFLAGS"
182 CPPFLAGS="$CPPFLAGS -Wno-sign-compare"
183 AC_TRY_COMPILE([],[],nmh_cv_has_nosigncompare=yes,
184 nmh_cv_has_nosigncompare=no)
185 CPPFLAGS="$nmh_saved_cppflags"])
187 if test "$nmh_cv_has_nosigncompare" = 'yes'; then
188 DISABLE_SIGN_COMPARE_WARNING=-Wno-sign-compare
190 AC_SUBST(DISABLE_SIGN_COMPARE_WARNING)dnl
192 AC_CACHE_CHECK([whether compiler supports -Wextra], [nmh_cv_has_wextra],
193 [nmh_saved_cflags="$CFLAGS"
194 CFLAGS="$CFLAGS -Wextra -Wno-clobbered"
195 AC_TRY_COMPILE([],[],nmh_cv_has_wextra=yes,nmh_cv_has_wextra=no)
196 CFLAGS="$nmh_saved_cflags"])
198 AC_CACHE_CHECK([whether compiler supports -Wno-pointer-sign], [nmh_cv_has_noptrsign],
199 [nmh_saved_cflags="$CFLAGS"
200 CFLAGS="$CFLAGS -Wno-pointer-sign"
201 AC_TRY_COMPILE([],[],nmh_cv_has_noptrsign=yes,nmh_cv_has_noptrsign=no)
202 CFLAGS="$nmh_saved_cflags"])
204 dnl Can't use -ansi with gcc 4.5.3 on Cygwin, at least through setup
205 dnl setup version 2.763, because it disables some features in the
206 dnl system system header files and warns about them with -Wall. Try
207 dnl to test for that generally, though still with gcc.
208 if test "$GCC" = yes; then
209 AC_CACHE_CHECK([whether we can use -ansi with gcc], [nmh_cv_has_dash_ansi],
210 [nmh_saved_cppflags="$CPPFLAGS"
211 nmh_saved_cflags="$CFLAGS"
212 CPPFLAGS="-D_GNU_SOURCE"
213 CFLAGS="-ansi -Wall -Werror"
214 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <time.h>],[tzset();])],
215 [nmh_cv_has_dash_ansi=yes],
216 [nmh_cv_has_dash_ansi=no])
217 CPPFLAGS="$nmh_saved_cppflags"
218 CFLAGS="$nmh_saved_cflags"])
220 nmh_cv_has_dash_ansi=no
223 dnl if the user hasn't specified CFLAGS, then
224 dnl if compiler is gcc, then
225 dnl use -O2 and some warning flags
227 dnl We use -Wall and -Wextra if supported. If the compiler supports it we
228 dnl also use -Wno-pointer-sign, because gcc 4 now produces a lot of new
229 dnl warnings which are probably mostly spurious and which in any case we
230 dnl don't want to deal with now.
231 if test "$nmh_cv_has_noptrsign" = "yes"; then
232 if test "$nmh_cv_has_dash_ansi" = "yes"; then
233 nmh_gcc_common_flags="-ansi -pedantic -Wall"
235 nmh_gcc_common_flags="-Wall"
237 if test "$nmh_cv_has_wextra" = "yes"; then
238 nmh_gcc_warnflags="${nmh_gcc_common_flags} -Wextra -Wno-clobbered "\
241 nmh_gcc_warnflags="${nmh_gcc_common_flags} -Wno-pointer-sign"
244 if test "$nmh_cv_has_wextra" = "yes"; then
245 nmh_gcc_warnflags="${nmh_gcc_common_flags} -Wextra -Wno-clobbered"
247 nmh_gcc_warnflags="${nmh_gcc_common_flags}"
251 if test -n "$auto_cflags"; then
252 if test x"$enable_debug" = x"yes"; then
253 if test -n "$GCC"; then
254 test -z "$CFLAGS" && CFLAGS="$nmh_gcc_warnflags -g" || CFLAGS="$CFLAGS $nmh_gcc_warnflags -g"
256 test -z "$CFLAGS" && CFLAGS=-g || CFLAGS="$CFLAGS -g"
259 if test -z "$LDFLAGS"; then
269 if test -n "$GCC"; then
270 test -z "$CFLAGS" && CFLAGS="$nmh_gcc_warnflags -O2" || CFLAGS="$CFLAGS $nmh_gcc_warnflags -O2"
272 test -z "$CFLAGS" && CFLAGS=-O || CFLAGS="$CFLAGS -O"
277 AC_C_CONST dnl Does compiler support `const'.
279 dnl ------------------
280 dnl CHECK FOR PROGRAMS
281 dnl ------------------
282 AC_PROG_MAKE_SET dnl Does make define $MAKE
283 AC_PROG_INSTALL dnl Check for BSD compatible `install'
284 AC_PROG_RANLIB dnl Check for `ranlib'
285 AC_PROG_AWK dnl Check for mawk,gawk,nawk, then awk
286 AC_PROG_SED dnl Check for Posix-compliant sed
287 AC_PROG_LEX dnl Check for lex/flex
290 pathtmp=/usr/bin:/bin:/usr/local/bin:/usr/xpg4/bin:/usr/ucb
291 AC_PATH_PROG([cutpath], [cut], [no], [$pathtmp])
294 dnl Check for MD5 program and formatting command
296 AC_CHECK_PROGS([MD5SUM], [md5sum md5], [missing])
297 AS_CASE(["${MD5SUM}"],
298 [md5sum], [MD5FMT="cat"],
299 [md5], [[MD5FMT="${SED} -e 's/MD5 *(\(.*\)) *= \([0-9a-f]*\)/\2 \1/'"]],
303 dnl ----------------------------------------------
304 dnl check for lclint, and lint if it doesn't exist
305 dnl ----------------------------------------------
306 AC_CHECK_PROG(linttmp1, lclint, lclint, no)dnl
307 if test x$ac_cv_prog_linttmp1 != xno ; then
308 LINT=$ac_cv_prog_linttmp1
309 LINTFLAGS="-weak +posixlib -macrovarprefixexclude"
311 AC_CHECK_PROG(linttmp2, lint, lint, no)dnl
312 if test x$ac_cv_prog_linttmp2 != xno ; then
313 LINT=$ac_cv_prog_linttmp2
316 LINT="echo 'No lint program found'"
321 AC_SUBST([LINTFLAGS])dnl
324 pathtmp=/usr/bin:/bin:/usr/local/bin:/usr/xpg4/bin:/usr/ucb
325 AC_PATH_PROG([lspath], [ls], [no], [$pathtmp])
327 dnl See how we get ls to display the owner and the group
328 if test "$lspath" != "no"; then
329 AC_CACHE_CHECK([how to get ls to show us the group ownership of a file],
331 [if test x"`$lspath -dl / | $AWK '{print $9}'`" = x"/"; then
332 dnl There were 9 parameters, so unless this is a really bizarre, nonstandard
333 dnl ls, it would seem -l gave us both the user and group. On this type of
334 dnl ls, -g makes _only_ the group be displayed (and not the user).
335 nmh_cv_ls_grpopt="-l"
337 dnl Looks like -l only gave us the user, so we need -g to get the group too.
338 nmh_cv_ls_grpopt="-lg"
342 dnl Look for `sendmail'
343 pathtmp=/usr/lib:/usr/sbin:/usr/etc:/usr/ucblib:/usr/bin:/bin
344 AC_PATH_PROG([sendmailpath], [sendmail], [/usr/sbin/sendmail], [$pathtmp])
347 pathtmp=/usr/bin:/bin:/usr/ucb:/usr/local/bin
348 AC_PATH_PROG([vipath], [vi], [/bin/vi], [$pathtmp])
350 dnl If editor is not specified yet,
351 dnl then use `vi' as the default.
352 AS_IF([test -z "$editorpath"], [editorpath="$vipath"])
353 AC_SUBST([editorpath])dnl
355 dnl Cygwin FAT filesystems do not support hard links. So default to
356 dnl cp instead, even if running on an NTFS or other filesystem.
357 AS_CASE(["$host_os"],
362 dnl ----------------------------------------------------------
363 dnl FIND MAIL SPOOL AND SEE IF WE NEED TO MAKE inc SETGID MAIL
364 dnl ----------------------------------------------------------
365 AC_CACHE_CHECK(where mail spool is located, nmh_cv_mailspool,
366 [for mailspool in /var/mail dnl
369 /dev/null; dnl Just in case we fall through
371 test -d $mailspool && break
373 nmh_cv_mailspool=$mailspool
375 mailspool=$nmh_cv_mailspool
376 AC_SUBST([mailspool])dnl
378 dnl See whether the mail spool directory is world-writable.
379 if test "$lspath" != "no" -a "$cutpath" != "no"; then
380 AC_CACHE_CHECK(whether the mail spool is world-writable,
381 nmh_cv_mailspool_world_writable,
382 [if test "`$lspath -dlL $mailspool | $cutpath -c9`" = "-"; then
383 nmh_cv_mailspool_world_writable=no
385 nmh_cv_mailspool_world_writable=yes
389 dnl Also, check for liblockfile (as found on Debian systems)
390 AC_CHECK_HEADER([lockfile.h], [AC_CHECK_LIB(lockfile, lockfile_create)])
392 dnl and whether its companion program dotlockfile is setgid
393 AC_PATH_PROG(dotlockfilepath, dotlockfile, no)
394 if test "$ac_cv_lib_lockfile_lockfile_create" != "no" ; then
395 if test "$ac_cv_path_dotlockfilepath" != "no" ; then
396 AC_CACHE_CHECK(whether dotlockfile is setgid, nmh_cv_dotlockfile_setgid,
397 [ if test -g "$ac_cv_path_dotlockfilepath" ; then
398 nmh_cv_dotlockfile_setgid=yes
400 nmh_cv_dotlockfile_setgid=no
405 dnl Provide a way for distcheck to disable setgid_mail via
406 dnl DISTCHECK_CONFIGURE_FLAGS.
407 if test x"$DISABLE_SETGID_MAIL" != x -a x"$DISABLE_SETGID_MAIL" != x0; then
408 nmh_cv_dotlockfile_setgid=yes
411 dnl If mailspool is not world-writable and dotlockfile is not setgid,
412 dnl we need to #define MAILGROUP to 1 and make inc setgid.
413 if test x"$LOCKTYPE" = x"dot" -a x"$nmh_cv_mailspool_world_writable" = x"no" -a x"$nmh_cv_dotlockfile_setgid" != x"yes" ; then
414 dnl do we really need both of these?
415 AC_DEFINE(MAILGROUP,1,
416 [Define to 1 if you need to make `inc' set-group-id because your mail spool is not world writable. There are no guarantees as to the safety of doing this, but this #define will add some extra security checks.])dnl
419 AC_SUBST(SETGID_MAIL)dnl
421 dnl Use ls to see which group owns the mail spool directory.
422 AC_CACHE_CHECK(what group owns the mail spool, nmh_cv_ls_mail_grp,
423 [nmh_cv_ls_mail_grp=`$lspath -dL $nmh_cv_ls_grpopt $mailspool|$AWK '{print $4}'`
425 MAIL_SPOOL_GRP=$nmh_cv_ls_mail_grp
426 AC_SUBST(MAIL_SPOOL_GRP)dnl
428 dnl ------------------
429 dnl CHECK HEADER FILES
430 dnl ------------------
432 dnl On glibc we need to define at least the '_XOPEN_SOURCE' level of features,
433 dnl or wchar.h doesn't declare a prototype for wcwidth(). But if we only define
434 dnl that level then db.h won't compile. So we define _GNU_SOURCE which turns
435 dnl on everything. Perhaps other OSes need some feature switch set to get wcwidth()
436 dnl declared; if so they should have an entry added to this case statement.
437 dnl NB that we must define this on the compiler command line, not in config.h,
438 dnl because it must be set before any system header is included and there's no
439 dnl portable way to make sure that files generated by lex include config.h
440 dnl before system header files.
442 AS_CASE(["$host_os"],
444 [# Like DEFS, but doesn't get stomped on by configure when using config.h:
445 AS_IF([test -z "$CPPFLAGS"],[CPPFLAGS="-D_GNU_SOURCE"],
446 [CPPFLAGS="$CPPFLAGS -D_GNU_SOURCE"])])
450 AC_CHECK_HEADERS([errno.h fcntl.h crypt.h ncurses/termcap.h termcap.h \
451 langinfo.h wchar.h wctype.h iconv.h netdb.h \
452 sys/param.h sys/time.h sys/stream.h])
455 dnl Checks for _IO_write_ptr. A Linuxism used by nmh on linux. We
456 dnl really use a whole set of them, but this check should be
459 AC_CHECK_HEADER(libio.h, [
460 AC_EGREP_HEADER(_IO_write_ptr, libio.h, [
461 AC_DEFINE(LINUX_STDIO,1,[Use the Linux _IO_*_ptr defines from <libio.h>.]) ]) ])
463 AC_CHECK_HEADER([sys/ptem.h], AC_DEFINE(WINSIZE_IN_PTEM,1,
464 [Define to 1 if `struct winsize' requires <sys/ptem.h>.]),,
465 [[#if HAVE_SYS_STREAM_H
466 # include <sys/stream.h>
473 AC_CHECK_FUNCS([wcwidth mbtowc writev lstat nl_langinfo getutxent])
475 dnl Check for multibyte character set support
476 AS_IF([test "x$ac_cv_header_wchar_h" = "xyes" -a \
477 "x$ac_cv_header_wctype_h" = "xyes" -a \
478 "x$ac_cv_func_wcwidth" = "xyes" -a \
479 "x$ac_cv_func_mbtowc" = "xyes"],
480 [AC_DEFINE([MULTIBYTE_SUPPORT], [1],
481 [Define to enable support for multibyte character sets.])
482 MULTIBYTE_ENABLED=1],
483 [MULTIBYTE_ENABLED=0])
484 AC_SUBST([MULTIBYTE_ENABLED])
486 dnl -------------------
487 dnl CHECK FOR LIBRARIES
488 dnl -------------------
489 dnl Check location of modf
490 AC_CHECK_FUNC([modf], , AC_CHECK_LIB([m], [modf]))
492 dnl Checks for network libraries (nsl, socket)
497 termcap_curses_order="termcap curses ncurses"
498 for lib in $termcap_curses_order; do
499 AC_CHECK_LIB(${lib}, tgetent, [TERMLIB="-l$lib"; break])
501 AC_SUBST([TERMLIB])dnl
502 AS_IF([test "x$TERMLIB" = "x"],
503 [AC_MSG_FAILURE([Could not find tgetent in any library. Is there a curses
504 or ncurses library or package that you can install?])])
511 dnl Find iconv. It may be in libiconv and may be iconv() or libiconv()
512 if test "x$ac_cv_header_iconv_h" = "xyes"; then
513 AC_CHECK_FUNC(iconv, ac_found_iconv=yes, ac_found_iconv=no)
514 if test "x$ac_found_iconv" = "xno"; then
515 AC_CHECK_LIB(iconv, iconv, ac_found_iconv=yes)
516 if test "x$ac_found_iconv" = "xno"; then
517 AC_CHECK_LIB(iconv, libiconv, ac_found_iconv=yes)
519 if test "x$ac_found_iconv" != "xno"; then
523 dnl Handle case where there is a native iconv but iconv.h is from libiconv
524 AC_CHECK_DECL(_libiconv_version,
525 [ AC_CHECK_LIB(iconv, libiconv, LIBS="-liconv $LIBS") ],,
526 [ #include <iconv.h> ])
529 if test "x$ac_found_iconv" = xyes; then
530 AC_DEFINE([HAVE_ICONV], [1], [Define if you have the iconv() function.])
534 dnl Check if iconv uses const in prototype declaration
535 if test "x$ac_found_iconv" = "xyes"; then
536 AC_CACHE_CHECK(for iconv declaration, ac_cv_iconv_const,
537 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <stdlib.h>
538 #include <iconv.h>]],
542 #if defined(__STDC__) || defined(__cplusplus)
543 size_t iconv (iconv_t cd, char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);
547 [ac_cv_iconv_const=],
548 [ac_cv_iconv_const=const])])
549 AC_DEFINE_UNQUOTED([ICONV_CONST], $ac_cv_iconv_const,
550 [Define as const if the declaration of iconv() needs const.])
557 AC_ARG_WITH([ndbm],AS_HELP_STRING([--with-ndbm=ARG],[use -lARG to link with ndbm]),
558 [nmh_ndbm=$withval],[nmh_ndbm=autodetect])
559 AC_ARG_WITH([ndbmheader],AS_HELP_STRING([--with-ndbmheader=ARG],[#include <ARG> to use ndbm]),
560 [nmh_ndbmheader=$withval],[nmh_ndbmheader=autodetect])
562 if test "$nmh_ndbm" = "autodetect"; then
563 if test "$nmh_ndbmheader" != "autodetect"; then
564 AC_MSG_ERROR([must specify both --with-ndbm and --with-ndbmheader or neither])
567 dnl There are at least four implementations of ndbm, and
568 dnl several of those can be in different places at the whim
569 dnl of the system integrator. A good summary of this mess
570 dnl can be found at http://www.unixpapa.com/incnote/dbm.html
572 dnl Classic ndbm with no library required (eg NetBSD): try this
573 dnl first so we don't accidentally link in a pointless but harmless
574 dnl library in one of the later ndbm.h+libfoo tests:
575 NMH_CHECK_NDBM(ndbm.h,,,
576 dnl Berkeley DBv2 emulating ndbm: header in db.h:
577 NMH_CHECK_NDBM(db.h,db,,
578 dnl Berkeley DBv1 emulating ndbm:
579 NMH_CHECK_NDBM(ndbm.h,db,,
580 NMH_CHECK_NDBM(ndbm.h,db1,,
582 NMH_CHECK_NDBM(ndbm.h,ndbm,,
583 dnl glibc2.1 systems put db1 in a subdir:
584 NMH_CHECK_NDBM(db1/ndbm.h,db1,,
585 dnl GNU gdbm emulating ndbm, with header possibly in gdbm/
586 dnl and possibly needing gbdm_compat library:
587 NMH_CHECK_NDBM(gdbm/ndbm.h,gdbm,,
588 NMH_CHECK_NDBM(gdbm/ndbm.h,gdbm_compat -lgdbm,,
589 NMH_CHECK_NDBM(ndbm.h,gdbm,,
590 NMH_CHECK_NDBM(ndbm.h,gdbm_compat -lgdbm))))))))))
594 dnl We don't really need to check that the user-specified values work,
595 dnl but it is a convenience to the user to bomb out early rather than
596 dnl after configure and half the compile process.
597 NMH_CHECK_NDBM([$nmh_ndbmheader],[$nmh_ndbm])
600 if test "$nmh_ndbm_found" = "no"; then
601 AC_MSG_ERROR([could not find a working ndbm library/header combination])
603 dnl Now export the lib/header to our makefile/config.h:
604 if test x"$nmh_ndbmheader" != x; then
605 AC_DEFINE_UNQUOTED(NDBM_HEADER, <$nmh_ndbmheader>,
606 [Define to the header containing the ndbm API prototypes.])
608 if test x"$nmh_ndbm" != x; then
609 NDBM_LIBS="-l$nmh_ndbm"
613 AC_SUBST([NDBM_LIBS])
616 dnl ------------------
617 dnl Set RPM build root
618 dnl ------------------
619 dnl nmhrpm is used in the final summary, see below. The default value is
620 dnl reported there as ./RPM, consistent with the reporting of the default
621 dnl source code location as ., but its absolute path is used in the Makefile.
623 AS_HELP_STRING([--with-rpmdir=RPMDIR], [RPM build directory @<:@RPM@:>@]))
624 AS_IF([test x"$with_rpmdir" = x], [rpmdir='$(abs_srcdir)/RPM'; nmhrpm=./RPM],
625 [rpmdir="$with_rpmdir"; eval "nmhrpm=${rpmdir}"])
629 dnl --------------------
630 dnl CHECK FOR CYRUS-SASL
631 dnl --------------------
633 AS_IF([test x"$sasl_support" = x"yes"],[
634 AC_CHECK_HEADER([sasl/sasl.h], , [AC_MSG_ERROR([sasl.h not found])])
635 AC_CHECK_LIB([sasl2], [sasl_client_new], [SASLLIB="-lsasl2"],
636 [AC_MSG_ERROR([Cyrus SASL library not found])])],[SASLLIB=""])
639 dnl -----------------
640 dnl CHECK FOR OPENSSL
641 dnl -----------------
643 AS_IF([test x"$tls_support" = x"yes"],[
644 AC_CHECK_HEADER([openssl/ssl.h], , [AC_MSG_ERROR([openssl/ssl.h not found])])
645 AC_CHECK_LIB([crypto], [BIO_write], ,
646 [AC_MSG_ERROR([OpenSSL crypto library not found])])
647 AC_CHECK_LIB([ssl], [SSL_library_init], ,
648 [AC_MSG_ERROR([OpenSSL library not found])])])
650 dnl ---------------------
651 dnl CHECK TERMCAP LIBRARY
652 dnl ---------------------
654 dnl Add the termcap library, so that the following configure
655 dnl tests will find it when it tries to link test programs.
656 nmh_save_LIBS="$LIBS"
657 LIBS="$TERMLIB $LIBS"
659 dnl Check if tgetent accepts NULL (and will allocate its own termcap buffer)
660 dnl Some termcaps reportedly accept a zero buffer, but then dump core
662 dnl Under Cygwin test program crashes but exit code is still 0. So,
663 dnl we test for a file that porgram should create
664 AH_TEMPLATE([TGETENT_ACCEPTS_NULL],
665 [Define to 1 if tgetent() accepts NULL as a buffer.])
666 AC_CACHE_CHECK(if tgetent accepts NULL,
667 nmh_cv_func_tgetent_accepts_null,
672 int r1 = tgetent(buf, "vt100");
673 int r2 = tgetent((char*)0,"vt100");
674 if (r1 >= 0 && r1 == r2) {
678 creat("conftest.tgetent", 0640);
680 exit((r1 != r2) || r2 == -1);
683 if test -f conftest.tgetent; then
684 nmh_cv_func_tgetent_accepts_null=yes
686 nmh_cv_func_tgetent_accepts_null=no
688 nmh_cv_func_tgetent_accepts_null=no,
689 nmh_cv_func_tgetent_accepts_null=no)])
690 if test x$nmh_cv_func_tgetent_accepts_null = xyes; then
691 AC_DEFINE(TGETENT_ACCEPTS_NULL)
693 AC_CACHE_CHECK(if tgetent returns 0 on success,
694 nmh_cv_func_tgetent_zero_success,
699 int r1 = tgetent(buf, "!@#$%^&*");
700 int r2 = tgetent(buf, "vt100");
701 if (r1 < 0 && r2 == 0) {
705 creat("conftest.tgetent0", 0640);
710 if test -f conftest.tgetent0; then
711 nmh_cv_func_tgetent_zero_success=yes
713 nmh_cv_func_tgetent_zero_success=no
715 nmh_cv_func_tgetent_zero_success=no,
716 nmh_cv_func_tgetent_zero_success=no)])
717 AH_TEMPLATE([TGETENT_SUCCESS],
718 [Define to what tgetent() returns on success (0 on HP-UX X/Open curses).])
719 if test x$nmh_cv_func_tgetent_zero_success = xyes; then
720 AC_DEFINE(TGETENT_SUCCESS, 0)
722 AC_DEFINE(TGETENT_SUCCESS, 1)
725 dnl Now put the libraries back to what it was before we
726 dnl starting checking the termcap library.
727 LIBS="$nmh_save_LIBS"
742 dnl For platforms such as FreeBSD that have tm_gmtoff in struct tm.
743 dnl (FreeBSD has a timezone() function but not a timezone global
744 dnl variable that is visible).
745 AC_CHECK_MEMBERS([struct tm.tm_gmtoff],,,[#include <time.h>])
747 AC_STRUCT_DIRENT_D_TYPE
749 dnl Where is <signal.h> located? Needed as input for signames.awk
750 AC_CACHE_CHECK(where signal.h is located, nmh_cv_path_signal_h,
751 [for SIGNAL_H in /usr/include/bsd/sys/signal.h dnl Next
752 /usr/include/asm/signal.h dnl Linux 1.3.0 and above
753 /usr/include/asm/signum.h dnl some versions of Linux/Alpha
754 /usr/include/linux/signal.h dnl Linux up to 1.2.11
755 /usr/include/sys/signal.h dnl Almost everybody else
756 /dev/null; dnl Just in case we fall through
758 test -f $SIGNAL_H && \
759 grep '#[ ]*define[ ][ ]*SIG[0-9A-Z]*[ ]*[0-9][0-9]*' $SIGNAL_H > /dev/null && \
762 nmh_cv_path_signal_h=$SIGNAL_H
764 SIGNAL_H=$nmh_cv_path_signal_h
765 AC_SUBST(SIGNAL_H)dnl
768 dnl Sigh, this is required because under the new world order autoconf has
769 dnl nothing to create in a few of the build directories when doing an object
770 dnl tree build. So make sure we created certain directories if they don't
774 AC_CONFIG_COMMANDS([build-directories],
775 [test -d etc || ${MKDIR_P} etc
776 test -d man || ${MKDIR_P} man])
778 AC_CONFIG_COMMANDS_POST([
780 dnl These odd looking assignments are done to expand out unexpanded
781 dnl variables in bindir et al (for instance mandir is '${datarootdir}/man'),
782 dnl but expanding that gives '${prefix}/share/man', so we need to expand
783 dnl again to get the final answer.
784 dnl We only use the expanded versions to print the install paths in
785 dnl the final summary and should use them nowhere else (see the autoconf
786 dnl docs for the rationale for bindir etc being unexpanded).
787 eval "nmhbin=${bindir}"; eval "nmhbin=${nmhbin}"
788 eval "nmhsysconf=${sysconfdir}"; eval "nmhsysconf=${nmhsysconf}"
789 eval "nmhlib=${libdir}"; eval "nmhlib=${nmhlib}"
790 eval "nmhman=${mandir}"; eval "nmhman=${nmhman}"
791 eval "nmhrpm=${nmhrpm}";
796 nmh version : AC_PACKAGE_VERSION
799 compiler flags : ${CFLAGS}
800 linker flags : ${LDFLAGS}
801 preprocessor flags : ${CPPFLAGS}
802 source code location : ${srcdir}
803 binary install path : ${nmhbin}
804 library install path : ${nmhlib}
805 config files install path : ${nmhsysconf}
806 man page install path : ${nmhman}
807 RPM build root : ${nmhrpm}
808 backup prefix : ${backup_prefix}
809 transport system : ${MTS}
810 file locking type : ${LOCKTYPE}
811 default smtp servers : ${smtpservers}
812 default editor : ${editorpath}
813 default pager : ${pagerpath}
814 SASL support : ${sasl_support}
815 TLS support : ${tls_support}
821 AC_CONFIG_FILES([Makefile test/common.sh])
822 AC_CONFIG_FILES([uip/spost], [chmod +x uip/spost])