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 -Werror 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], "$backup_prefix",
71 [The prefix that is prepended to the name of message files when they are "removed" by rmm. This should typically be `,' or `#'.])dnl
73 dnl What method of locking to use?
75 [aix*|cygwin*|linux*],
76 [default_locktype="fcntl"; default_locking=FCNTL_LOCKING],
77 [freebsd*], [default_locktype="flock"; default_locking=FLOCK_LOCKING],
78 [default_locktype="dot"; default_locking=DOT_LOCKING])
81 AS_HELP_STRING([--with-locking=@<:@dot|fcntl|flock|lockf@:>@],
82 [specify the file locking method]))
84 if test x"$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@:>@],
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"],
122 dnl What should be the default pager?
124 AS_HELP_STRING([--with-pager=PAGER],[specify the default pager]))
126 AS_IF([test -n "$with_pager"], [pagerpath="$with_pager"])
128 dnl If a pager is not explicitly specified, then look for one.
129 dnl Fall back to `cat', to avoid catastrophic failure of
130 dnl `mhshow', et al., if pagerpath is set to `no'.
131 if test -z "$pagerpath"; then
132 pathtmp=/usr/bin:/bin:/usr/ucb:/usr/local/bin
133 AC_PATH_PROGS([pagerpath], [more less most cat], [no], [$pathtmp])
135 AC_SUBST(pagerpath)dnl
137 dnl What should be the default mail server(s)?
138 AC_ARG_WITH(smtpservers,
139 AS_HELP_STRING([--with-smtpservers='SMTPSERVER1@<:@ SMTPSERVER2...@:>@'],
140 [specify the default SMTP server(s) @<:@localhost@:>@]))
141 AS_IF([test -n "$with_smtpservers"], [smtpservers="$with_smtpservers"],
142 [smtpservers="localhost"])
143 AC_SUBST([smtpservers])dnl
145 dnl ----------------------------------------------------
146 dnl Default location is /usr/local/nmh/{bin,etc,lib,man}
147 dnl ----------------------------------------------------
148 AC_PREFIX_DEFAULT([/usr/local/nmh])
150 dnl ------------------
151 dnl CHECK THE COMPILER
152 dnl ------------------
153 dnl We want these before the checks,
154 dnl so the checks can modify their values.
155 test -z "$CFLAGS" && CFLAGS= auto_cflags=1
156 if test x"$enable_debug" = x"yes"; then
157 test -z "$LDFLAGS" && LDFLAGS=-g
163 AC_CACHE_CHECK([whether preprocessor supports -Wunused-macros],
164 [nmh_cv_has_unusedmacros],
165 [nmh_saved_cppflags="$CPPFLAGS"
166 CPPFLAGS="$CPPFLAGS -Wunused-macros -Wno-unused-macros"
167 AC_TRY_COMPILE([],[],nmh_cv_has_unusedmacros=yes,nmh_cv_has_unusedmacros=no)
168 CPPFLAGS="$nmh_saved_cppflags"])
170 if test "$nmh_cv_has_unusedmacros" = 'yes'; then
171 test -z "$CPPFLAGS" && CPPFLAGS=-Wunused-macros \
172 || CPPFLAGS="$CPPFLAGS -Wunused-macros"
173 DISABLE_UNUSED_MACROS_WARNING=-Wno-unused-macros
175 AC_SUBST(DISABLE_UNUSED_MACROS_WARNING)dnl
177 AC_CACHE_CHECK([whether compiler supports -Wno-sign-compare],
178 [nmh_cv_has_nosigncompare],
179 [nmh_saved_cppflags="$CPPFLAGS"
180 CPPFLAGS="$CPPFLAGS -Wno-sign-compare"
181 AC_TRY_COMPILE([],[],nmh_cv_has_nosigncompare=yes,
182 nmh_cv_has_nosigncompare=no)
183 CPPFLAGS="$nmh_saved_cppflags"])
185 if test "$nmh_cv_has_nosigncompare" = 'yes'; then
186 DISABLE_SIGN_COMPARE_WARNING=-Wno-sign-compare
188 AC_SUBST(DISABLE_SIGN_COMPARE_WARNING)dnl
190 AC_CACHE_CHECK([whether compiler supports -Wextra], [nmh_cv_has_wextra],
191 [nmh_saved_cflags="$CFLAGS"
192 CFLAGS="$CFLAGS -Wextra -Wno-clobbered"
193 AC_TRY_COMPILE([],[],nmh_cv_has_wextra=yes,nmh_cv_has_wextra=no)
194 CFLAGS="$nmh_saved_cflags"])
196 AC_CACHE_CHECK([whether compiler supports -Wno-pointer-sign], [nmh_cv_has_noptrsign],
197 [nmh_saved_cflags="$CFLAGS"
198 CFLAGS="$CFLAGS -Wno-pointer-sign"
199 AC_TRY_COMPILE([],[],nmh_cv_has_noptrsign=yes,nmh_cv_has_noptrsign=no)
200 CFLAGS="$nmh_saved_cflags"])
202 dnl Can't use -ansi with gcc 4.5.3 on Cygwin, at least through setup
203 dnl setup version 2.763, because it disables some features in the
204 dnl system system header files and warns about them with -Wall. Try
205 dnl to test for that generally, though still with gcc.
206 if test "$GCC" = yes; then
207 AC_CACHE_CHECK([whether we can use -ansi with gcc], [nmh_cv_has_dash_ansi],
208 [nmh_saved_cppflags="$CPPFLAGS"
209 nmh_saved_cflags="$CFLAGS"
210 CPPFLAGS="-D_GNU_SOURCE"
211 CFLAGS="-ansi -Wall -Werror"
212 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <time.h>],[tzset();])],
213 [nmh_cv_has_dash_ansi=yes],
214 [nmh_cv_has_dash_ansi=no])
215 CPPFLAGS="$nmh_saved_cppflags"
216 CFLAGS="$nmh_saved_cflags"])
218 nmh_cv_has_dash_ansi=no
221 dnl if the user hasn't specified CFLAGS, then
222 dnl if compiler is gcc, then
223 dnl use -O2 and some warning flags
225 dnl We use -Wall and -Wextra if supported. If the compiler supports it we
226 dnl also use -Wno-pointer-sign, because gcc 4 now produces a lot of new
227 dnl warnings which are probably mostly spurious and which in any case we
228 dnl don't want to deal with now.
229 if test "$nmh_cv_has_noptrsign" = "yes"; then
230 if test "$nmh_cv_has_dash_ansi" = "yes"; then
231 nmh_gcc_common_flags="-ansi -pedantic -Wall"
233 nmh_gcc_common_flags="-Wall"
235 if test "$nmh_cv_has_wextra" = "yes"; then
236 nmh_gcc_warnflags="${nmh_gcc_common_flags} -Wextra -Wno-clobbered "\
239 nmh_gcc_warnflags="${nmh_gcc_common_flags} -Wno-pointer-sign"
242 if test "$nmh_cv_has_wextra" = "yes"; then
243 nmh_gcc_warnflags="${nmh_gcc_common_flags} -Wextra -Wno-clobbered"
245 nmh_gcc_warnflags="${nmh_gcc_common_flags}"
249 if test -n "$auto_cflags"; then
250 if test x"$enable_debug" = x"yes"; then
251 if test -n "$GCC"; then
252 test -z "$CFLAGS" && CFLAGS="$nmh_gcc_warnflags -g" || CFLAGS="$CFLAGS $nmh_gcc_warnflags -g"
254 test -z "$CFLAGS" && CFLAGS=-g || CFLAGS="$CFLAGS -g"
257 if test -z "$LDFLAGS"; then
267 if test -n "$GCC"; then
268 test -z "$CFLAGS" && CFLAGS="$nmh_gcc_warnflags -O2" || CFLAGS="$CFLAGS $nmh_gcc_warnflags -O2"
270 test -z "$CFLAGS" && CFLAGS=-O || CFLAGS="$CFLAGS -O"
275 AC_C_CONST dnl Does compiler support `const'.
277 dnl ------------------
278 dnl CHECK FOR PROGRAMS
279 dnl ------------------
280 AC_PROG_MAKE_SET dnl Does make define $MAKE
281 AC_PROG_INSTALL dnl Check for BSD compatible `install'
282 AC_PROG_RANLIB dnl Check for `ranlib'
283 AC_PROG_AWK dnl Check for mawk,gawk,nawk, then awk
284 AC_PROG_SED dnl Check for Posix-compliant sed
285 AC_PROG_LEX dnl Check for lex/flex
288 pathtmp=/usr/bin:/bin:/usr/local/bin:/usr/xpg4/bin:/usr/ucb
289 AC_PATH_PROG([cutpath], [cut], [no], [$pathtmp])
292 dnl Check for MD5 program and formatting command
294 AC_CHECK_PROGS([MD5SUM], [md5sum md5], [missing])
295 AS_CASE(["${MD5SUM}"],
296 [md5sum], [MD5FMT="cat"],
297 [md5], [[MD5FMT="${SED} -e 's/MD5 *(\(.*\)) *= \([0-9a-f]*\)/\2 \1/'"]],
301 dnl ----------------------------------------------
302 dnl check for lclint, and lint if it doesn't exist
303 dnl ----------------------------------------------
304 AC_CHECK_PROG(linttmp1, lclint, lclint, no)dnl
305 if test x$ac_cv_prog_linttmp1 != xno ; then
306 LINT=$ac_cv_prog_linttmp1
307 LINTFLAGS="-weak +posixlib -macrovarprefixexclude"
309 AC_CHECK_PROG(linttmp2, lint, lint, no)dnl
310 if test x$ac_cv_prog_linttmp2 != xno ; then
311 LINT=$ac_cv_prog_linttmp2
314 LINT="echo 'No lint program found'"
319 AC_SUBST([LINTFLAGS])dnl
322 pathtmp=/usr/bin:/bin:/usr/local/bin:/usr/xpg4/bin:/usr/ucb
323 AC_PATH_PROG([lspath], [ls], [no], [$pathtmp])
325 dnl See how we get ls to display the owner and the group
326 if test "$lspath" != "no"; then
327 AC_CACHE_CHECK([how to get ls to show us the group ownership of a file],
329 [if test x"`$lspath -dl / | $AWK '{print $9}'`" = x"/"; then
330 dnl There were 9 parameters, so unless this is a really bizarre, nonstandard
331 dnl ls, it would seem -l gave us both the user and group. On this type of
332 dnl ls, -g makes _only_ the group be displayed (and not the user).
333 nmh_cv_ls_grpopt="-l"
335 dnl Looks like -l only gave us the user, so we need -g to get the group too.
336 nmh_cv_ls_grpopt="-lg"
340 dnl Look for `sendmail'
341 pathtmp=/usr/lib:/usr/sbin:/usr/etc:/usr/ucblib:/usr/bin:/bin
342 AC_PATH_PROG([sendmailpath], [sendmail], [/usr/sbin/sendmail], [$pathtmp])
345 pathtmp=/usr/bin:/bin:/usr/ucb:/usr/local/bin
346 AC_PATH_PROG([vipath], [vi], [/bin/vi], [$pathtmp])
348 dnl If editor is not specified yet,
349 dnl then use `vi' as the default.
350 AS_IF([test -z "$editorpath"], [editorpath="$vipath"])
351 AC_SUBST([editorpath])dnl
353 dnl Cygwin FAT filesystems do not support hard links. So use cp instead,
354 dnl even if running on an NTFS or other filesystem.
355 AS_CASE(["$host_os"],
356 [cygwin*],[LINK_FILE=cp],
358 AC_SUBST([LINK_FILE])
360 dnl ----------------------------------------------------------
361 dnl FIND MAIL SPOOL AND SEE IF WE NEED TO MAKE inc SETGID MAIL
362 dnl ----------------------------------------------------------
363 AC_CACHE_CHECK(where mail spool is located, nmh_cv_mailspool,
364 [for mailspool in /var/mail dnl
367 /dev/null; dnl Just in case we fall through
369 test -d $mailspool && break
371 nmh_cv_mailspool=$mailspool
373 mailspool=$nmh_cv_mailspool
374 AC_SUBST([mailspool])dnl
376 dnl See whether the mail spool directory is world-writable.
377 if test "$lspath" != "no" -a "$cutpath" != "no"; then
378 AC_CACHE_CHECK(whether the mail spool is world-writable,
379 nmh_cv_mailspool_world_writable,
380 [if test "`$lspath -dlL $mailspool | $cutpath -c9`" = "-"; then
381 nmh_cv_mailspool_world_writable=no
383 nmh_cv_mailspool_world_writable=yes
387 dnl Also, check for liblockfile (as found on Debian systems)
388 AC_CHECK_HEADER([lockfile.h], [AC_CHECK_LIB(lockfile, lockfile_create)])
390 dnl and whether its companion program dotlockfile is setgid
391 AC_PATH_PROG(dotlockfilepath, dotlockfile, no)
392 if test "$ac_cv_lib_lockfile_lockfile_create" != "no" ; then
393 if test "$ac_cv_path_dotlockfilepath" != "no" ; then
394 AC_CACHE_CHECK(whether dotlockfile is setgid, nmh_cv_dotlockfile_setgid,
395 [ if test -g "$ac_cv_path_dotlockfilepath" ; then
396 nmh_cv_dotlockfile_setgid=yes
398 nmh_cv_dotlockfile_setgid=no
403 dnl Provide a way for distcheck to disable setgid_mail via
404 dnl DISTCHECK_CONFIGURE_FLAGS.
405 if test x"$DISABLE_SETGID_MAIL" != x -a x"$DISABLE_SETGID_MAIL" != x0; then
406 nmh_cv_dotlockfile_setgid=yes
409 dnl If mailspool is not world-writable and dotlockfile is not setgid,
410 dnl we need to #define MAILGROUP to 1 and make inc setgid.
411 if test x"$LOCKTYPE" = x"dot" -a x"$nmh_cv_mailspool_world_writable" = x"no" -a x"$nmh_cv_dotlockfile_setgid" != x"yes" ; then
412 dnl do we really need both of these?
413 AC_DEFINE(MAILGROUP,1,
414 [Define to 1 if you need to make `inc' set-group-id because your mail spool is not world writable. There are no guarantees as to the safety of doing this, but this #define will add some extra security checks.])dnl
417 AC_SUBST(SETGID_MAIL)dnl
419 dnl Use ls to see which group owns the mail spool directory.
420 AC_CACHE_CHECK(what group owns the mail spool, nmh_cv_ls_mail_grp,
421 [nmh_cv_ls_mail_grp=`$lspath -dL $nmh_cv_ls_grpopt $mailspool|$AWK '{print $4}'`
423 MAIL_SPOOL_GRP=$nmh_cv_ls_mail_grp
424 AC_SUBST(MAIL_SPOOL_GRP)dnl
426 dnl ------------------
427 dnl CHECK HEADER FILES
428 dnl ------------------
430 dnl On glibc we need to define at least the '_XOPEN_SOURCE' level of features,
431 dnl or wchar.h doesn't declare a prototype for wcwidth(). But if we only define
432 dnl that level then db.h won't compile. So we define _GNU_SOURCE which turns
433 dnl on everything. Perhaps other OSes need some feature switch set to get wcwidth()
434 dnl declared; if so they should have an entry added to this case statement.
435 dnl NB that we must define this on the compiler command line, not in config.h,
436 dnl because it must be set before any system header is included and there's no
437 dnl portable way to make sure that files generated by lex include config.h
438 dnl before system header files.
440 AS_CASE(["$host_os"],
442 [# Like DEFS, but doesn't get stomped on by configure when using config.h:
443 AS_IF([test -z "$CPPFLAGS"],[CPPFLAGS="-D_GNU_SOURCE"],
444 [CPPFLAGS="$CPPFLAGS -D_GNU_SOURCE"])])
448 AC_CHECK_HEADERS([errno.h fcntl.h crypt.h ncurses/termcap.h termcap.h \
449 langinfo.h wchar.h wctype.h iconv.h netdb.h \
450 sys/param.h sys/time.h sys/stream.h])
453 dnl Checks for _IO_write_ptr. A Linuxism used by nmh on linux. We
454 dnl really use a whole set of them, but this check should be
457 AC_CHECK_HEADER(libio.h, [
458 AC_EGREP_HEADER(_IO_write_ptr, libio.h, [
459 AC_DEFINE(LINUX_STDIO,1,[Use the Linux _IO_*_ptr defines from <libio.h>.]) ]) ])
461 AC_CHECK_HEADER([sys/ptem.h], AC_DEFINE(WINSIZE_IN_PTEM,1,
462 [Define to 1 if `struct winsize' requires <sys/ptem.h>.]),,
463 [[#if HAVE_SYS_STREAM_H
464 # include <sys/stream.h>
471 AC_CHECK_FUNCS([wcwidth mbtowc writev lstat nl_langinfo getutxent])
473 dnl Check for multibyte character set support
474 AS_IF([test "x$ac_cv_header_wchar_h" = "xyes" -a \
475 "x$ac_cv_header_wctype_h" = "xyes" -a \
476 "x$ac_cv_func_wcwidth" = "xyes" -a \
477 "x$ac_cv_func_mbtowc" = "xyes"],
478 [AC_DEFINE([MULTIBYTE_SUPPORT], [1],
479 [Define to enable support for multibyte character sets.])
480 MULTIBYTE_ENABLED=1],
481 [MULTIBYTE_ENABLED=0])
482 AC_SUBST([MULTIBYTE_ENABLED])
484 dnl -------------------
485 dnl CHECK FOR LIBRARIES
486 dnl -------------------
487 dnl Check location of modf
488 AC_CHECK_FUNC([modf], , AC_CHECK_LIB([m], [modf]))
490 dnl Checks for network libraries (nsl, socket)
495 termcap_curses_order="termcap curses ncurses"
496 for lib in $termcap_curses_order; do
497 AC_CHECK_LIB(${lib}, tgetent, [TERMLIB="-l$lib"; break])
499 AC_SUBST([TERMLIB])dnl
500 AS_IF([test "x$TERMLIB" = "x"],
501 [AC_MSG_FAILURE([Could not find tgetent in any library. Is there a curses
502 or ncurses library or package that you can install?])])
509 dnl Find iconv. It may be in libiconv and may be iconv() or libiconv()
510 if test "x$ac_cv_header_iconv_h" = "xyes"; then
511 AC_CHECK_FUNC(iconv, ac_found_iconv=yes, ac_found_iconv=no)
512 if test "x$ac_found_iconv" = "xno"; then
513 AC_CHECK_LIB(iconv, iconv, ac_found_iconv=yes)
514 if test "x$ac_found_iconv" = "xno"; then
515 AC_CHECK_LIB(iconv, libiconv, ac_found_iconv=yes)
517 if test "x$ac_found_iconv" != "xno"; then
521 dnl Handle case where there is a native iconv but iconv.h is from libiconv
522 AC_CHECK_DECL(_libiconv_version,
523 [ AC_CHECK_LIB(iconv, libiconv, LIBS="-liconv $LIBS") ],,
524 [ #include <iconv.h> ])
527 if test "x$ac_found_iconv" = xyes; then
528 AC_DEFINE([HAVE_ICONV], [1], [Define if you have the iconv() function.])
532 dnl Check if iconv uses const in prototype declaration
533 if test "x$ac_found_iconv" = "xyes"; then
534 AC_CACHE_CHECK(for iconv declaration, ac_cv_iconv_const,
535 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <stdlib.h>
536 #include <iconv.h>]],
540 #if defined(__STDC__) || defined(__cplusplus)
541 size_t iconv (iconv_t cd, char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);
545 [ac_cv_iconv_const=],
546 [ac_cv_iconv_const=const])])
547 AC_DEFINE_UNQUOTED([ICONV_CONST], $ac_cv_iconv_const,
548 [Define as const if the declaration of iconv() needs const.])
555 AC_ARG_WITH([ndbm],AS_HELP_STRING([--with-ndbm=ARG],[use -lARG to link with ndbm]),
556 [nmh_ndbm=$withval],[nmh_ndbm=autodetect])
557 AC_ARG_WITH([ndbmheader],AS_HELP_STRING([--with-ndbmheader=ARG],[#include <ARG> to use ndbm]),
558 [nmh_ndbmheader=$withval],[nmh_ndbmheader=autodetect])
560 if test "$nmh_ndbm" = "autodetect"; then
561 if test "$nmh_ndbmheader" != "autodetect"; then
562 AC_MSG_ERROR([must specify both --with-ndbm and --with-ndbmheader or neither])
565 dnl There are at least four implementations of ndbm, and
566 dnl several of those can be in different places at the whim
567 dnl of the system integrator. A good summary of this mess
568 dnl can be found at http://www.unixpapa.com/incnote/dbm.html
570 dnl Classic ndbm with no library required (eg NetBSD): try this
571 dnl first so we don't accidentally link in a pointless but harmless
572 dnl library in one of the later ndbm.h+libfoo tests:
573 NMH_CHECK_NDBM(ndbm.h,,,
574 dnl Berkeley DBv2 emulating ndbm: header in db.h:
575 NMH_CHECK_NDBM(db.h,db,,
576 dnl Berkeley DBv1 emulating ndbm:
577 NMH_CHECK_NDBM(ndbm.h,db,,
578 NMH_CHECK_NDBM(ndbm.h,db1,,
580 NMH_CHECK_NDBM(ndbm.h,ndbm,,
581 dnl glibc2.1 systems put db1 in a subdir:
582 NMH_CHECK_NDBM(db1/ndbm.h,db1,,
583 dnl GNU gdbm emulating ndbm, with header possibly in gdbm/
584 dnl and possibly needing gbdm_compat library:
585 NMH_CHECK_NDBM(gdbm/ndbm.h,gdbm,,
586 NMH_CHECK_NDBM(gdbm/ndbm.h,gdbm_compat -lgdbm,,
587 NMH_CHECK_NDBM(ndbm.h,gdbm,,
588 NMH_CHECK_NDBM(ndbm.h,gdbm_compat -lgdbm))))))))))
592 dnl We don't really need to check that the user-specified values work,
593 dnl but it is a convenience to the user to bomb out early rather than
594 dnl after configure and half the compile process.
595 NMH_CHECK_NDBM([$nmh_ndbmheader],[$nmh_ndbm])
598 if test "$nmh_ndbm_found" = "no"; then
599 AC_MSG_ERROR([could not find a working ndbm library/header combination])
601 dnl Now export the lib/header to our makefile/config.h:
602 if test x"$nmh_ndbmheader" != x; then
603 AC_DEFINE_UNQUOTED(NDBM_HEADER, <$nmh_ndbmheader>,
604 [Define to the header containing the ndbm API prototypes.])
606 if test x"$nmh_ndbm" != x; then
607 NDBM_LIBS="-l$nmh_ndbm"
611 AC_SUBST([NDBM_LIBS])
614 dnl ------------------
615 dnl Set RPM build root
616 dnl ------------------
617 dnl nmhrpm is used in the final summary, see below. The default value is
618 dnl reported there as ./RPM, consistent with the reporting of the default
619 dnl source code location as ., but its absolute path is used in the Makefile.
621 AS_HELP_STRING([--with-rpmdir=RPMDIR], [RPM build directory @<:@RPM@:>@]))
622 AS_IF([test x"$with_rpmdir" = x], [rpmdir='$(abs_srcdir)/RPM'; nmhrpm=./RPM],
623 [rpmdir="$with_rpmdir"; eval "nmhrpm=${rpmdir}"])
627 dnl --------------------
628 dnl CHECK FOR CYRUS-SASL
629 dnl --------------------
631 AS_IF([test x"$sasl_support" = x"yes"],[
632 AC_CHECK_HEADER([sasl/sasl.h], , [AC_MSG_ERROR([sasl.h not found])])
633 AC_CHECK_LIB([sasl2], [sasl_client_new], [SASLLIB="-lsasl2"],
634 [AC_MSG_ERROR([Cyrus SASL library not found])])],[SASLLIB=""])
637 dnl -----------------
638 dnl CHECK FOR OPENSSL
639 dnl -----------------
641 AS_IF([test x"$tls_support" = x"yes"],[
642 AC_CHECK_HEADER([openssl/ssl.h], , [AC_MSG_ERROR([openssl/ssl.h not found])])
643 AC_CHECK_LIB([crypto], [BIO_write], ,
644 [AC_MSG_ERROR([OpenSSL crypto library not found])])
645 AC_CHECK_LIB([ssl], [SSL_library_init], ,
646 [AC_MSG_ERROR([OpenSSL library not found])])])
648 dnl ---------------------
649 dnl CHECK TERMCAP LIBRARY
650 dnl ---------------------
652 dnl Add the termcap library, so that the following configure
653 dnl tests will find it when it tries to link test programs.
654 nmh_save_LIBS="$LIBS"
655 LIBS="$TERMLIB $LIBS"
657 dnl Check if tgetent accepts NULL (and will allocate its own termcap buffer)
658 dnl Some termcaps reportedly accept a zero buffer, but then dump core
660 dnl Under Cygwin test program crashes but exit code is still 0. So,
661 dnl we test for a file that porgram should create
662 AH_TEMPLATE([TGETENT_ACCEPTS_NULL],
663 [Define to 1 if tgetent() accepts NULL as a buffer.])
664 AC_CACHE_CHECK(if tgetent accepts NULL,
665 nmh_cv_func_tgetent_accepts_null,
670 int r1 = tgetent(buf, "vt100");
671 int r2 = tgetent((char*)0,"vt100");
672 if (r1 >= 0 && r1 == r2) {
676 creat("conftest.tgetent", 0640);
678 exit((r1 != r2) || r2 == -1);
681 if test -f conftest.tgetent; then
682 nmh_cv_func_tgetent_accepts_null=yes
684 nmh_cv_func_tgetent_accepts_null=no
686 nmh_cv_func_tgetent_accepts_null=no,
687 nmh_cv_func_tgetent_accepts_null=no)])
688 if test x$nmh_cv_func_tgetent_accepts_null = xyes; then
689 AC_DEFINE(TGETENT_ACCEPTS_NULL)
691 AC_CACHE_CHECK(if tgetent returns 0 on success,
692 nmh_cv_func_tgetent_zero_success,
697 int r1 = tgetent(buf, "!@#$%^&*");
698 int r2 = tgetent(buf, "vt100");
699 if (r1 < 0 && r2 == 0) {
703 creat("conftest.tgetent0", 0640);
708 if test -f conftest.tgetent0; then
709 nmh_cv_func_tgetent_zero_success=yes
711 nmh_cv_func_tgetent_zero_success=no
713 nmh_cv_func_tgetent_zero_success=no,
714 nmh_cv_func_tgetent_zero_success=no)])
715 AH_TEMPLATE([TGETENT_SUCCESS],
716 [Define to what tgetent() returns on success (0 on HP-UX X/Open curses).])
717 if test x$nmh_cv_func_tgetent_zero_success = xyes; then
718 AC_DEFINE(TGETENT_SUCCESS, 0)
720 AC_DEFINE(TGETENT_SUCCESS, 1)
723 dnl Now put the libraries back to what it was before we
724 dnl starting checking the termcap library.
725 LIBS="$nmh_save_LIBS"
740 dnl For platforms such as FreeBSD that have tm_gmtoff in struct tm.
741 dnl (FreeBSD has a timezone() function but not a timezone global
742 dnl variable that is visible).
743 AC_CHECK_MEMBERS([struct tm.tm_gmtoff],,,[#include <time.h>])
745 AC_STRUCT_DIRENT_D_TYPE
747 dnl Where is <signal.h> located? Needed as input for signames.awk
748 AC_CACHE_CHECK(where signal.h is located, nmh_cv_path_signal_h,
749 [for SIGNAL_H in /usr/include/bsd/sys/signal.h dnl Next
750 /usr/include/asm/signal.h dnl Linux 1.3.0 and above
751 /usr/include/asm/signum.h dnl some versions of Linux/Alpha
752 /usr/include/linux/signal.h dnl Linux up to 1.2.11
753 /usr/include/sys/signal.h dnl Almost everybody else
754 /dev/null; dnl Just in case we fall through
756 test -f $SIGNAL_H && \
757 grep '#[ ]*define[ ][ ]*SIG[0-9A-Z]*[ ]*[0-9][0-9]*' $SIGNAL_H > /dev/null && \
760 nmh_cv_path_signal_h=$SIGNAL_H
762 SIGNAL_H=$nmh_cv_path_signal_h
763 AC_SUBST(SIGNAL_H)dnl
766 dnl Sigh, this is required because under the new world order autoconf has
767 dnl nothing to create in a few of the build directories when doing an object
768 dnl tree build. So make sure we created certain directories if they don't
772 AC_CONFIG_COMMANDS([build-directories],
773 [test -d etc || ${MKDIR_P} etc
774 test -d man || ${MKDIR_P} man])
776 AC_CONFIG_COMMANDS_POST([
778 dnl These odd looking assignments are done to expand out unexpanded
779 dnl variables in bindir et al (for instance mandir is '${datarootdir}/man'),
780 dnl but expanding that gives '${prefix}/share/man', so we need to expand
781 dnl again to get the final answer.
782 dnl We only use the expanded versions to print the install paths in
783 dnl the final summary and should use them nowhere else (see the autoconf
784 dnl docs for the rationale for bindir etc being unexpanded).
785 eval "nmhbin=${bindir}"; eval "nmhbin=${nmhbin}"
786 eval "nmhsysconf=${sysconfdir}"; eval "nmhsysconf=${nmhsysconf}"
787 eval "nmhlib=${libdir}"; eval "nmhlib=${nmhlib}"
788 eval "nmhman=${mandir}"; eval "nmhman=${nmhman}"
789 eval "nmhrpm=${nmhrpm}";
794 nmh version : AC_PACKAGE_VERSION
797 compiler flags : ${CFLAGS}
798 linker flags : ${LDFLAGS}
799 preprocessor flags : ${CPPFLAGS}
800 source code location : ${srcdir}
801 binary install path : ${nmhbin}
802 library install path : ${nmhlib}
803 config files install path : ${nmhsysconf}
804 man page install path : ${nmhman}
805 RPM build root : ${nmhrpm}
806 backup prefix : ${backup_prefix}
807 transport system : ${MTS}
808 file locking type : ${LOCKTYPE}
809 default smtp servers : ${smtpservers}
810 default editor : ${editorpath}
811 default pager : ${pagerpath}
812 SASL support : ${sasl_support}
813 TLS support : ${tls_support}
819 AC_CONFIG_FILES([Makefile test/common.sh])