dnl Autoconfigure input file for fetchmail

#

# Fetchmail automatic configuration support

#

# Eric S. Raymond <esr@thyrsus.com>

# 2004 - 2012 Matthias Andree <matthias.andree@gmx.de>

#

dnl Process this file with autoconf to produce a configure script.

dnl

dnl XXX - if bumping version here, check fetchmail.man, too!

AC_INIT([fetchmail],[6.3.22],[fetchmail-users@lists.berlios.de])

AC_CONFIG_SRCDIR([fetchmail.h])

AC_CONFIG_HEADERS([config.h])

AC_CONFIG_LIBOBJ_DIR([.])

AC_CANONICAL_HOST

dnl automake options are in Makefile.am

AC_PREREQ(2.60)

dnl 2.60 required for AC_USE_SYSTEM_EXTENSIONS

AM_INIT_AUTOMAKE

dnl python is optional

#

# you can pass PYTHON=: in environment or on the command line

# to disable python detection and continue without building/installing

# fetchmail.conf -- be sure to check README.packaging, too!

#

AM_PATH_PYTHON(2.0,,AC_MSG_WARN([Disabling fetchmailconf: python 2.0 or greater not found]))

AM_CONDITIONAL([HAVE_PYTHON], [test "$PYTHON" != :])

AC_PROG_AWK

AC_PROG_CC

AM_PROG_CC_C_O

AC_PROG_INSTALL

AC_PROG_CPP			dnl Later checks need this.

AC_PROG_RANLIB

AM_PROG_CC_C_O

AC_USE_SYSTEM_EXTENSIONS

AC_ISC_POSIX

dnl AC_ISC_POSIX: - XXX FIXME: remove in fetchmail 6.4.

dnl This macro adds `-lcposix' to output variable `LIBS' if necessary

dnl for Posix facilities.  Sun dropped support for the obsolete

dnl INTERACTIVE Systems Corporation Unix on 2006-07-23.  New programs

dnl need not use this macro.  It is implemented as

dnl `AC_SEARCH_LIBS([strerror], [cposix])'

dnl check for b0rked Solaris (and other shells) and find one that works

AC_MSG_CHECKING(for a working shell...)

for i in /usr/xpg6/bin/sh /usr/xpg4/bin/sh /usr/ccs/bin/sh /bin/sh /usr/bin/sh /bin/ksh /bin/bash /usr/local/bin/bash ; do

    $i -c 'if ! false ; then echo $(echo ok) ; fi' >config.$$ 2>/dev/null

    j=`cat config.$$`

    rm -f config.$$

    if test "x$j" = "xok" ; then

        SHELL=$i

        AC_SUBST(SHELL)

        break

    fi

done

AC_MSG_RESULT($SHELL)

if test "x$SHELL" = "x" ; then

    AC_MSG_ERROR(no SUS compliant shell found - on Solaris, install SUNWxcu4)

fi

AC_HEADER_STDC

AC_HEADER_TIME

AC_TYPE_SIZE_T

AC_TYPE_PID_T

AC_TYPE_SIGNAL

AC_CHECK_HEADERS([unistd.h termios.h termio.h sgtty.h stdarg.h \

	sys/itimer.h fcntl.h sys/fcntl.h memory.h sys/wait.h \

	arpa/inet.h arpa/nameser.h netinet/in.h net/socket.h netdb.h \

	sys/select.h sys/socket.h sys/time.h langinfo.h])

if test _$ac_cv_header_stdarg_h != _yes ; then

AC_MSG_WARN([stdarg.h is not defined. Unsupported configuration, proceed at your own risk.])

fi

AC_CHECK_TYPE(u_int32_t,,

	AC_DEFINE(u_int32_t,unsigned int,

		[Define to unsigned int if <sys/types.h> does not define.]),

	[AC_INCLUDES_DEFAULT

#ifdef HAVE_ARPA_NAMESER_H

#include <arpa/nameser.h>

#endif])

AC_CHECK_HEADERS([resolv.h],,,[

#include <sys/types.h>

#ifdef HAVE_NETINET_IN_H

#include <netinet/in.h>

#endif

#ifdef HAVE_ARPA_NAMESER_H

#include <arpa/nameser.h>

#endif

])

AC_CHECK_DECLS([h_errno],,,[

	AC_INCLUDES_DEFAULT

	#ifdef HAVE_NETDB_H

	#include <netdb.h>

	#endif

])

AC_C_CONST			dnl getopt needs this.

AM_PROG_LEX

AC_PROG_MAKE_SET

AC_PROG_YACC

# Check for OS special cases

case $host_os in

darwin*)

    AC_MSG_NOTICE(found Darwin - Adding -DBIND_8_COMPAT to CFLAGS)

    CPPFLAGS="$CPPFLAGS -DBIND_8_COMPAT"

    ;;

# Check for FreeBSD special case: more libs needed

freebsd*)

    AC_MSG_NOTICE(found FreeBSD - Adding -lkvm -lcom_err to standard libraries)

    LIBS="$LIBS -lkvm -lcom_err"

    ;;

# Check for LynxOS special case: -lbsd needed (at least on 2.3.0) and -s

# not working.

lynxos*)

    AC_MSG_NOTICE(found LynxOS - Adding -lbsd to standard libraries)

    LIBS="$LIBS -lbsd"

    LDFLAGS=`echo $LDFLAGS | sed "s/-s //"`

    AC_MSG_NOTICE(found LynxOS - Prepending standard include path to gcc flags)

    CPPFLAGS="$CPPFLAGS -I/usr/include"

    ;;

# Check for Rhapsody special case: it doesn't like -s

rhapsody*)

    AC_MSG_NOTICE(found Rhapsody - Removing -s load flag)

    LDFLAGS=`echo $LDFLAGS | sed "s/-s //"`

    ;;

esac

AC_CACHE_SAVE

dnl i18n

AM_GNU_GETTEXT([external], [need-ngettext])

AM_GNU_GETTEXT_VERSION([0.17])

dnl end i18n

# Under sysV68, socket and friends are provided by the C library.

# -linet does not provide socket, but causes multiple definition

# errors at link-time.  It is thus better to only use the C library.

# So don't add -linet to the link list unless it's necessary

AC_CHECK_FUNC(socket,

    AC_MSG_RESULT(using libc's socket),

    AC_CHECK_LIB(socket,socket)

    AC_CHECK_LIB(inet,socket))

# The condition in this test copes with the presence of inet_addr in libc6.

AC_CHECK_FUNC(inet_addr,

    AC_MSG_RESULT(using libc's inet_addr),

    AC_CHECK_LIB(nsl,inet_addr))

dnl Port hack for Interactive UNIX System V/386 Release 3.2

AC_CHECK_LIB(cposix, strchr,

		[DEFS="$DEFS -D_SYSV3"

		LIBS="$LIBS -lcposix"])

dnl Port hack for Sparc/NetBSD-1.5

dnl

dnl NB: this has been disabled as it causes the unconditional

dnl addition of libintl to the build, which is both undesired

dnl and breaks on Solaris/Blastwave.org machines.

dnl

dnl AC_CHECK_LIB(intl, gettext,

dnl 		[LIBS="$LIBS -lintl"])

AC_REPLACE_FUNCS([strstr strcasecmp memmove stpcpy strlcpy strlcat])

AC_CHECK_FUNC(getopt_long, [],

              [AC_LIBSOURCES([getopt.c, getopt1.c])

	       EXTRAOBJ="$EXTRAOBJ getopt.\$(OBJEXT) getopt1.\$(OBJEXT)"])

AC_FUNC_VPRINTF

AC_SUBST(EXTRAOBJ)

AC_CHECK_FUNCS(tcsetattr stty setsid geteuid seteuid dnl

  strerror syslog snprintf vprintf vsnprintf vsyslog dnl

  atexit inet_aton strftime setrlimit socketpair dnl

  sigaction strdup setlocale)

AC_CHECK_DECLS([strerror,getenv])

dnl INET6 is used by KAME/getnameinfo

AC_CACHE_CHECK(for AF_INET6/PF_INET6,ac_cv_inet6,

AC_COMPILE_IFELSE([

  AC_LANG_PROGRAM([[

    #ifdef HAVE_SYS_TYPES_H

    #include <sys/types.h>

    #endif

    #ifdef HAVE_SYS_SOCKET_H

    #include <sys/socket.h>

    #endif

  ]],[[

    int foo = AF_INET6;

    int bar = PF_INET6;

  ]])],

  ac_cv_inet6=yes , ac_cv_inet6=no

))

if test "x$ac_cv_inet6" = xyes

then

    AC_DEFINE(INET6,1,Define to 1 if your system defines AF_INET6 and PF_INET6.)

fi

# Under Red Hat 4.0 (and many other Linuxes) -lresolv is seriously flaky

# and breaks gethostbyname(2).  It's better to use the bind stuff in the C

# library.  So don't add -lresolv to the link list unless it's necessary

# (It will be necessary when using GNU libc6).

old_LIBS="$LIBS"

for lib in '' -lresolv; do

    if test -z "$lib"; then

       AC_MSG_CHECKING([for res_search in libc])

    else

       AC_MSG_CHECKING([for res_search in $lib])

    fi

    LIBS="$old_LIBS $lib"

    AC_LINK_IFELSE([AC_LANG_PROGRAM([[

#include <sys/types.h>

#ifdef HAVE_NETINET_IN_H

#include <netinet/in.h>

#endif

#ifdef HAVE_ARPA_NAMESER_H

#include <arpa/nameser.h>

#endif

#ifdef HAVE_RESOLV_H

#include <resolv.h>

#endif

extern int res_search();

]], [[res_search(0, 0, 0, 0, 0); dn_skipname(0,0);]])],

    [AC_MSG_RESULT([found])

     AC_DEFINE(HAVE_RES_SEARCH, [1],

	       [Define to 1 if you have the 'res_search' and 'dn_skipname' functions.])

     break], [AC_MSG_RESULT([not found])])

     LIBS=$old_LIBS

done

dnl Check for libcrypt -- it may live in libc or libcrypt, as on IRIX

AC_CHECK_FUNC(crypt, , AC_CHECK_LIB(crypt,crypt))

dnl Check for usable void pointer type

AC_MSG_CHECKING(use of void pointer type)

AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[char *p;

    void *xmalloc();

    p = (char *) xmalloc(1);

   ]])],[AC_DEFINE(HAVE_VOIDPOINTER,1,[Define if your C compiler allows void * as a function result]) AC_MSG_RESULT(yes)],[AC_MSG_RESULT(no)])

dnl Check for ANSI volatile

AC_C_VOLATILE

dnl Check out the wait reality.  We have to assume sys/wait.h is present.

AC_CHECK_FUNCS(waitpid wait3)

AC_MSG_CHECKING(for union wait);

AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>

#include <sys/wait.h>]], [[union wait status; int pid; pid = wait (&status);

#ifdef WEXITSTATUS

/* Some POSIXoid systems have both the new-style macros and the old

   union wait type, and they do not work together.  If union wait

   conflicts with WEXITSTATUS et al, we don't want to use it at all.  */

if (WEXITSTATUS (status) != 0) pid = -1;

#endif

#ifdef HAVE_WAITPID

/* Make sure union wait works with waitpid.  */

pid = waitpid (-1, &status, 0);

#endif

]])],[AC_DEFINE(HAVE_UNION_WAIT,1,Define if 'union wait' is the type of the first arg to wait functions.) AC_MSG_RESULT(yes)],[AC_MSG_RESULT(no)])

AC_MSG_CHECKING(sys_siglist declaration in signal.h or unistd.h)

AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <signal.h>

/* NetBSD declares sys_siglist in <unistd.h>.  */

#ifdef HAVE_UNISTD_H

#include <unistd.h>

#endif]], [[char *msg = *(sys_siglist + 1);]])],[AC_DEFINE(SYS_SIGLIST_DECLARED,1,[Define if 'sys_siglist' is declared by <signal.h>.]) AC_MSG_RESULT(yes)],[AC_MSG_RESULT(no)])

# Find the right directory to put the root-mode PID file in

for dir in "/var/run" "/etc"

do

	if test -d $dir 

	then

		break;

	fi

done

AC_MSG_RESULT(root-mode pid file will go in $dir)

AC_DEFINE_UNQUOTED(PID_DIR, "$dir", directory for PID lock files)

# We may have a fallback MDA available in case the socket open to the 

# local SMTP listener fails.  Best to use procmail for this, as we know

# it won't try delivering through local SMTP and cause a mail loop.

# Sendmail without the -t option to use the message headers will work too,

# not just for sendmail itself but for workalikes like exim.

#

# Note1: A disadvantage of using procmail is that local alias expansion

# according to /etc/aliases won't get done if we fall back.  This doesn't

# matter in single-drop mode.

#

# Note2: it would be a very bad idea to use any MDA that doesn't return

# a refuse-to-deliver status on disk- or process-table-full

# conditions; mail could get lost that way.  Sendmail and all of the MDAs

# like exim that might be lurking under a sendmail alias) do the right 

# thing in this circumstance.  Matthias Andree warns that procmail does

# not.  

#

# Note3: Defalt value of fallback is now off.  Matthias writes:

#

# 1. there is no way to predict when the fallback is used. With some MTAs

#    (such as those limiting load average), outer circumstances can cause

#    the fallback to kick in.

# 

# 2. the fallback changes fetchmail behaviour in unpredictable ways. It's

#    not only about alias expansion, .forwards to special filters won't

#    work, mail may end up in a different place (users claim "mail loss"

#    for that).

# 

# 3. The claim procmail did the right thing with its exit codes is plain

#    wrong. I've seen procmail exit with code 1 when it should have exited

#    with code 75, like, configuration errors. Procmail is a dangerous

#    beast and is best replaced by maildrop.

# 

# 4. if multiple choices exist (like procmail and maildrop), fetchmail

#    cannot tell which one it should choose. Say, your MTA is configured

#    to use maildrop to deliver to user's mailboxes, if fetchmail then

#    chooses procmail, this is plain wrong.

#

AC_PATH_PROG(procmail, procmail, "", $PATH:/usr/sbin)

AC_PATH_PROG(sendmail, sendmail, "", $PATH:/usr/sbin:/usr/lib)

AC_PATH_PROG(maildrop, maildrop, "", $PATH:/usr/local/bin)

###	use option --disable-fallback to disable fallback MDA

###	use option --enable-fallback=procmail or 

###		   --enable-fallback=sendmail to select

AC_ARG_ENABLE(fallback,

	[  --enable-fallback=procmail    enable procmail as fallback

  --enable-fallback=sendmail    enable /usr/sbin/sendmail as fallback

  --enable-fallback=maildrop    enable maildrop as fallback

  --enable-fallback=no          disable fallback],,[enable_fallback=no])

case "$enable_fallback" in

	sendmail)	if test -z "$sendmail" ; then 

				AC_MSG_ERROR([Sendmail selected as fallback, but not found])

				#not reached

			fi

			AC_DEFINE_UNQUOTED(FALLBACK_MDA, "$sendmail -i %T", Fallback MTA to use if defined)

			AC_MSG_NOTICE(Will use $sendmail as fallback MDA.)

			;;

	procmail)	if test -z "$procmail" ; then

				AC_MSG_ERROR([procmail selected as fallback, but not found])

				#not reached

			fi

			AC_DEFINE_UNQUOTED(FALLBACK_MDA, "$procmail -d %T")

			AC_MSG_NOTICE(Will use $procmail as fallback MDA.)

			;;

	maildrop)	if test -z "$maildrop" ; then

				AC_MSG_ERROR([maildrop selected as fallback, but not found])

				#not reached

			fi

			AC_DEFINE_UNQUOTED(FALLBACK_MDA, "$maildrop -d %T")

			AC_MSG_NOTICE(Will use $maildrop as fallback MDA.)

			;;

	no|unset)	AC_MSG_NOTICE(Will not use a fallback MDA.)

			;;

	auto|yes|set)	if test -n "$sendmail" ; then

				AC_DEFINE_UNQUOTED(FALLBACK_MDA,"$sendmail -i %T")

				AC_MSG_NOTICE(Will use $sendmail as fallback MDA.)

			else

				AC_MSG_WARN(No fallback MDA available.  procmail and maildrop are not eligible)

				AC_MSG_WARN(for automatic fallback MDA configuration for reliability reasons.)

			fi

			;;

	*)		AC_MSG_ERROR([unkown value for --enable-fallback given: $enable_fallback])

			#notreached

			;;

esac

AC_CHECK_SIZEOF(short)

AC_CHECK_SIZEOF(int)

AC_CHECK_SIZEOF(long)

###	use option --enable-POP2 to compile in the POP2 support

AC_ARG_ENABLE(POP2,

	[  --enable-POP2           compile in POP2 protocol support (obsolete)],

	[with_POP2=$enableval],

	[with_POP2=no])

test "$with_POP2" = "yes" && AC_DEFINE(POP2_ENABLE,1,Define if you want POP2 support compiled in)

AM_CONDITIONAL(POP2_ENABLE, test "$with_POP2" = yes)

###	use option --disable-POP3 to omit the POP3 support

AC_ARG_ENABLE(POP3,

	[  --disable-POP3          don't compile in POP3 protocol support],

	[with_POP3=$enableval],

	[with_POP3=yes])

test "$with_POP3" = "yes" && AC_DEFINE(POP3_ENABLE,1,Define if you want POP3 support compiled in)

AM_CONDITIONAL(POP3_ENABLE, test "$with_POP3" = yes)

###	use option --disable-IMAP to omit the IMAP support

AC_ARG_ENABLE(IMAP,

	[  --disable-IMAP          don't compile in IMAP protocol support],

	[with_IMAP=$enableval],

	[with_IMAP=yes])

test "$with_IMAP" = "yes" && AC_DEFINE(IMAP_ENABLE,1,Define if you want IMAP support compiled in)

AM_CONDITIONAL(IMAP_ENABLE, test "$with_IMAP" = yes)

###	use option --disable-ETRN to omit the ETRN support

AC_ARG_ENABLE(ETRN,

	[  --disable-ETRN          don't compile in ETRN protocol support],

	[with_ETRN=$enableval],

	[with_ETRN=yes])

test "$with_ETRN" = "yes" && AC_DEFINE(ETRN_ENABLE,1,Define if you want ETRN support compiled in.)

AM_CONDITIONAL(ETRN_ENABLE, test "$with_ETRN" = yes)

###	use option --disable-ODMR to omit the ODMR support

AC_ARG_ENABLE(ODMR,

	[  --disable-ODMR          don't compile in ODMR protocol support],

	[with_ODMR=$enableval],

	[with_ODMR=yes])

test "$with_ODMR" = "yes" && AC_DEFINE(ODMR_ENABLE,1,Define if you want ODMR support compiled in)

AM_CONDITIONAL(ODMR_ENABLE, test "$with_ODMR" = yes)

###	use option --enable-RPA to compile in the RPA support

AC_ARG_ENABLE(RPA,

	[  --enable-RPA            compile in RPA protocol support],

	[with_RPA=$enableval],

	[with_RPA=no])

test "$with_RPA" = "yes" && AC_DEFINE(RPA_ENABLE,1,Define if you want RPA support compiled in)

AM_CONDITIONAL(RPA_ENABLE, test "$with_RPA" = yes)

###	use option --enable-NTLM to compile in the NTLM support

AC_ARG_ENABLE(NTLM,

	[  --enable-NTLM           compile in NTLM authentication support],

	[with_NTLM=$enableval],

	[with_NTLM=no])

test "$with_NTLM" = "yes" && AC_DEFINE(NTLM_ENABLE,1,Define if you want NTLM authentication)

AM_CONDITIONAL(NTLM_ENABLE, test "$with_NTLM" = yes)

###	use option --enable-SDPS to compile in the SDPS support

AC_ARG_ENABLE(SDPS,

	[  --enable-SDPS           compile in SDPS protocol support],

	[with_SDPS=$enableval],

	[with_SDPS=no])

if test "$with_SDPS" = yes ; then

   if test "$with_POP3" != yes ; then

       AC_MSG_WARN([SDPS cannot be enabled with POP3 disabled. Disabling SDPS.])

       with_SDPS=no

   else

       AC_DEFINE(SDPS_ENABLE,1,Define if you want SDPS support compiled in)

   fi

fi

if test "$with_POP3" != yes && test "$with_POP2" != yes \

    && test "$with_IMAP"  != yes ; then

    AC_MSG_ERROR([You must enable at least one of POP2, POP3 and IMAP.])

fi

AC_CACHE_SAVE

###	use option --enable-opie to compile in the OPIE support

AC_ARG_ENABLE(opie,

	[  --enable-opie           support OTP through the OPIE library],

	[ AC_CHECK_HEADER(opie.h,, [AC_MSG_ERROR([cannot find <opie.h>, which is required for OPIE support.])])

          AC_CHECK_LIB(opie,opiegenerator,, [AC_MSG_ERROR([cannot find libopie, which is required for OPIE support.])])

          with_opie=$enableval],

	[with_opie=no])

test "$with_opie" = "yes" && AC_DEFINE(OPIE_ENABLE,1,Define if you want OPIE support compiled in)

dnl Mostly stolen from gnulib's getaddrinfo.m4

AC_SEARCH_LIBS(getaddrinfo, [nsl socket])

AC_CACHE_CHECK([for getaddrinfo],[fm_cv_getaddrinfo],[

  AC_TRY_LINK([

#include <sys/types.h>

#ifdef HAVE_SYS_SOCKET_H

#include <sys/socket.h>

#endif

#ifdef HAVE_NETDB_H

#include <netdb.h>

#endif

  ], [getaddrinfo(0, 0, 0, 0);],

    [ fm_cv_getaddrinfo=yes],

    [ fm_cv_getaddrinfo=no ])

])

if test x"$fm_cv_getaddrinfo" = "xyes"; then  

     AC_DEFINE(HAVE_GETADDRINFO, 1,

      [Define to 1 if you have the getaddrinfo function.])

fi

AC_CACHE_CHECK([for getnameinfo],[fm_cv_getnameinfo],[

  AC_TRY_LINK([

#include <sys/types.h>

#ifdef HAVE_SYS_SOCKET_H

#include <sys/socket.h>

#endif

#ifdef HAVE_NETDB_H

#include <netdb.h>

#endif

#ifndef NULL

#define NULL 0

#endif

  ], [getnameinfo(NULL,0, NULL,0, NULL, 0, 0);],

    [ fm_cv_getnameinfo=yes],

    [ fm_cv_getnameinfo=no ])

])

if test $fm_cv_getnameinfo = yes ; then

    AC_DEFINE(HAVE_GETNAMEINFO,1,[Define to 1 if your system has getnameinfo()])

fi

AM_CONDITIONAL(NEED_GETADDRINFO, test "$fm_cv_getaddrinfo" != yes)

AM_CONDITIONAL(NEED_GETNAMEINFO, test "$fm_cv_getnameinfo"   != yes)

AC_CHECK_FUNCS(inet_ntop)

dnl Check if getaddrinfo is async-signal-safe - most implementations aren't

if test "$fm_cv_getaddrinfo" = yes ; then

    AC_MSG_CHECKING(if your getaddrinfo is async-signal-safe)

    gai_ts=no

    dnl we have getaddrinfo() - check if the OS is known to have a async-signal-safe implementation

    case $host_os in

	darwin9*)				gai_ts=yes ;;

	linux*)					gai_ts=yes ;;

	freebsd5.5|freebsd6*|freebsd7*)		gai_ts=yes ;;

	solaris2.8|solaris2.9|solaris2.10)	gai_ts=yes ;;

    esac

    AC_MSG_RESULT($gai_ts)

    if test $gai_ts = yes ; then

	AC_DEFINE(GETADDRINFO_ASYNCSAFE, 1, [define to 1 if you know your getaddrinfo function is async-signal-safe])

    fi

fi

# This version of the Kerberos 4 and 5 options addresses the follwing issues:

# 

# * Build correctly under Heimdal kerberos if it is compiled with db2 and

#   OpenSSL support (Debian's is)

# * Build the kerberos.c stuff (KPOP) only for kerberosIV, to avoid breakage.

#   I don't know if this is 100% correct, but now at least IMAP and POP3

#   behave the same way regarding kerberosV.

# * Build without any fuss for both kerberosIV and V at the same time.

# * Move all the kerberos header mess to kerberos.h, and #include that

#   in driver.c and kerberos.c.

# 

# Tested using the Heimdal Kerberos V libs, Kungliga Tekniska Högskolan (the

# Royal Institute of Technology in Stockholm, Sweden)'s kerberos IV libs, and

# the MIT reference implementation of KerberosV (all as packaged in Debian).

###    use option --with-kerberos5=DIR to point at a Kerberos 5 directory

### make sure --with-ssl is run before --with-kerberos* !

AC_ARG_WITH(kerberos5,

       [  --with-kerberos5=DIR    point fetchmail compilation at a Kerberos 5 directory],

[

if test "$with_kerberos5" != "no"

then

# Check for a OpenBSD special case

if test "$with_kerberos5" = "yes" && ( test `uname` = "OpenBSD" )

then

  AS_MESSAGE(checking kerberosV for OpenBSD...)

  AC_DEFINE(HEIMDAL,1,Define if you have HEIMDAL kerberos 5)

  AC_DEFINE(KERBEROS_V5,1,Define if you have Kerberos V5)

  CFLAGS="$CFLAGS -I/usr/include/kerberosV"

  LIBS="$LIBS -lasn1 -lkrb5 -lcom_err -lkafs"

elif krb5-config 2> /dev/null >/dev/null ; then

  krb5_prefix=`krb5-config --prefix krb5`

  AC_MSG_RESULT([krb5-config points to kerberosV under $krb5_prefix])

  if test -f ${krb5_prefix}/include/et/com_err.h && \

   ! test -f ${krb5_prefix}/include/com_err.h  ; then

    CFLAGS="$CFLAGS -I${krb5_prefix}/include/et"

  fi

  unset krb5_prefix

  CFLAGS="$CFLAGS `krb5-config --cflags krb5`"

  LIBS="$LIBS `krb5-config --libs krb5`"

  AC_DEFINE(KERBEROS_V5)

else

  if test "$with_kerberos5" != "yes" 

  then

      LDFLAGS="$LDFLAGS -L${with_kerberos5}/lib"

      searchdirs="$with_kerberos5"

  else

      searchdirs="/usr/kerberos /usr/local/krb5 /usr/athena /usr"

  fi

  with_kerberos5=

  for dir in $searchdirs

  do AC_MSG_CHECKING([for Kerberos V in $dir])

     if test -f "$dir/include/krb5.h" || test -f "$dir/include/krb5/krb5.h"

     then

	if test -d "$dir/include/krb5" ; then CPPFLAGS="$CPPFLAGS -I$dir/include/krb5" ; fi

        ac_krblibs=

        if test -f "$dir/include/roken.h" || test -f "$dir/include/krb5/roken.h"

        then

           ac_krblibs="-lasn1 -lroken -lcom_err"

           AC_MSG_RESULT([Heimdal found])

          dnl Attempt to detect if we need to -ldb2 to link Heimdal

          dnl we assume we do if it is available

           AC_CHECK_LIB(db2, db_open, ac_krblibs="$ac_krblibs -ldb2", [],

                ${LDFLAGS})

           AC_CHECK_LIB(des, des_string_to_key, libk5crypto=-ldes,

              AC_CHECK_LIB(crypto, MD5_Init, [],

                AC_MSG_ERROR([DES libraries not found. Try adding --with-ssl to enable OpenSSL support]),

                ${LDFLAGS} ${ac_krblibs}),

           ${LDFLAGS} ${ac_krblibs})

           AC_DEFINE(HEIMDAL)

        else

          AC_MSG_RESULT([found])

          ac_krblibs="-lcom_err"

           AC_CHECK_LIB(crypto,

             krb5_des_string_to_key,

             libk5crypto=-lcrypto,

                AC_CHECK_LIB(k5crypto,

                   krb5_des_string_to_key,

                   libk5crypto=-lk5crypto,

                      AC_MSG_ERROR([Kerberos 5 DES libraries not found]),

                   ${LDFLAGS} ${ac_krblibs}),

                 ${LDFLAGS} ${ac_krblibs})

        fi

        AC_CHECK_LIB(krb5, krb5_init_context,[],

           continue,

           ${LDFLAGS} ${ac_krblibs})

        AC_DEFINE(KERBEROS_V5)

        test "$dir" != "/usr" && CFLAGS="$CFLAGS -I$dir/include"

        LDFLAGS="$LDFLAGS -L$dir/lib"

       LIBS="$LIBS $ac_krblibs $libk5crypto"

        with_kerberos5=$dir

        break

     else

        AC_MSG_RESULT([not found])

     fi

  done

  if test -z "$with_kerberos5" ; then

     AC_MSG_ERROR([Kerberos 5 libraries not found])

  fi

fi

fi

]) dnl --with-kerberos5=DIR

###    use option --with-kerberos=DIR to point at a Kerberos 4 directory

KERBEROS_V4=0

AC_ARG_WITH(kerberos,

       [  --with-kerberos=DIR     point fetchmail compilation at a Kerberos 4 directory],

[

if test "$with_kerberos" != "no"

then

    AC_MSG_WARN([Kerberos IV support is obsolete. Use --with-kerberos5 if possible.])

# Check for a NetBSD/OpenBSD special case

if test "$with_kerberos" = "yes" && ( test `uname` = "NetBSD" || test `uname` = "OpenBSD" )

then

  AS_MESSAGE(checking kerberosIV for `uname`...)

  KERBEROS_V4=1

  CFLAGS="$CFLAGS -I/usr/include/kerberosIV"

  case `uname` in

      NetBSD)  LIBS="$LIBS -lkrb -ldes -lroken -lcom_err" ;;

      OpenBSD) LIBS="$LIBS -lkrb -ldes" ;;

  esac

elif krb4-config 2> /dev/null >/dev/null ; then

  krb4_prefix=`krb4-config --prefix`

  AC_MSG_RESULT([krb4-config points to kerberosIV under $krb4_prefix])

  unset krb4_prefix

  CFLAGS="$CFLAGS `krb4-config --cflags`"

  LIBS="$LIBS `krb4-config --libs`"

  KERBEROS_V4=1

elif krb5-config 2> /dev/null >/dev/null ; then

  krb4_prefix=`krb5-config --prefix krb4`

  AC_MSG_RESULT([krb5-config points to kerberosIV under $krb4_prefix])

  if test -f ${krb4_prefix}/include/kerberosIV/krb.h ; then

    AC_DEFINE(KERBEROS_V4_V5,1,Define if you have Kerberos V4 headers under a kerberosIV directory)

  fi

  unset krb4_prefix

  CFLAGS="$CFLAGS `krb5-config --cflags krb4`"

  LIBS="$LIBS `krb5-config --libs krb4`"

  KERBEROS_V4=1

else

  #we need to detect when we're building under a kerberosV compatibility

  #layer, btw...

  if test "$with_kerberos" != "yes" ; then

     searchdirs="$with_kerberos"

  else

     searchdirs="$with_kerberos5 /usr/kerberos /usr/kerberosIV /usr/athena /usr"

  fi

  with_kerberos=

  ac_saveLDFLAGS="$LDFLAGS"

  for dir in $searchdirs

  do

     AC_MSG_CHECKING([for Kerberos IV in $dir])

     if test -f "$dir/include/krb.h" || test -f "$dir/include/krb4.h" \

            || test -f "$dir/include/kerberosIV/krb.h"

     then

        AC_MSG_RESULT([found])

     else

        AC_MSG_RESULT([not found])

       continue

     fi

     #Find libs

     if test -f "$with_kerberos5/roken.h" ; then

       AC_CHECK_LIB(45, krb_mk_req)

     fi

     LDFLAGS="-L$dir/lib $ac_saveLDFLAGS"

     if test `uname` = "FreeBSD"; then

        AC_SEARCH_LIBS(_ossl_old_des_string_to_key, [des425 des crypto], [], continue)

     else

        AC_SEARCH_LIBS(des_string_to_key, [crypto], [], continue)

     fi

     AC_SEARCH_LIBS(krb_realmofhost, [krb4 krb], [], continue)

     with_kerberos="$dir"

     if test -f "$dir/include/kerberosIV/krb.h" ; then

        dir="$dir/include/kerberosIV"

     else

       dir="$dir/include"

     fi

     KERBEROS_V4=1

     test -f "$with_kerberos5/roken.h" && AC_DEFINE(HEIMDAL)

     test "$dir" != "/usr/include" && CFLAGS="$CFLAGS -I$dir"

     LDFLAGS="$LDFLAGS -L$with_kerberos/lib"

     break

  done

  if test -z "$with_kerberos" ; then

     AC_MSG_ERROR([Kerberos 4 libraries not found])

  fi

  LDFLAGS="$ac_saveLDFLAGS"

fi

fi

]) dnl --with-kerberos=DIR

if test "$KERBEROS_V4" = 1 ; then

    AC_DEFINE(KERBEROS_V4,1,Define if you have Kerberos V4)

fi

AM_CONDITIONAL(KERBEROS_V4_ENABLE, test "$KERBEROS_V4" = 1)

###	use option --with-ssl to compile in the SSL support

AC_ARG_WITH(ssl,

	[  --with-ssl=[DIR]        enable SSL support using libraries in DIR],

	[with_ssl=$withval],

	[with_ssl=no])

test "$with_ssl" != "no" && AC_DEFINE(SSL_ENABLE,1,Define if you want SSL support compiled in)

if test "$with_ssl" = "yes"

then

    #	User didn't specify an SSL location.  Let's look at some common

    #	directories where SSL has been found in the past and try and auto

    #	configure for SSL.  OpenSSL determination will be made later.

    #	This will screw up if an OpenSSL install is located in a later

    #	directory than an older SSLeay install, but the user should fix that

    #	anyways and he can override on the configure line.

    #	Just testing for directories is not sufficient, /usr exists on

    #	all systems!

    for ac_dir in \

      /usr/local/ssl \

      /usr/local \

      /usr/ssl \

      /usr \

      /local/ssl \

      /opt/ssl \

      /opt/csw \

      ; \

    do

        if test -r "$ac_dir/include/openssl/ssl.h" ; then

            with_ssl=$ac_dir

            break;

        fi

    done

fi

if test -n "$with_ssl" -a "$with_ssl" != "no"

then

  # With the autoconfigure above, the only time this is going to be

  # true is going to be when we could not find the headers.  If they

  # are not in system standard locations, we are going to be broken.

  if test "$with_ssl" = "yes"

  then

    # Let's just define the standard location for the SSLeay root

    with_ssl="/usr/local/ssl"

  fi

  if test -r $with_ssl/include/openssl/ssl.h

  then

    ###	ssl.h found under openssl.  Use openssl configuration preferentially,

    AC_MSG_NOTICE(Enabling OpenSSL support in $with_ssl.)

    test "$with_ssl" != "/usr" && CFLAGS="$CFLAGS -I$with_ssl/include"

    ### In Red Hat 9, this file includes a reference to <krb5.h>, so we

    ### force the Kerberos direcory onto the include path so it will build.

    CFLAGS="$CFLAGS -I/usr/kerberos/include"

    ###	OpenBSD comes with ssl headers

  else

    AC_MSG_ERROR([SSL support enabled, but OpenSSL not found])

  fi

  LDFLAGS="$LDFLAGS -L$with_ssl/lib"

  LIBS="$LIBS -lssl -lcrypto"

  dnl check if -ldl is needed

  AC_MSG_CHECKING([for additional library dependencies of SSL])

  found=0

  save_LIBS="$LIBS"

  for i in "" "-ldl" ; do

      LIBS="$LDFLAGS $save_LIBS $i"

      AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <openssl/ssl.h>],[SSL_library_init()])],[found=1; break])

  done

  if test $found = 0 ; then

      AC_MSG_RESULT([error])

      AC_MSG_ERROR([cannot link with SSL - check config.log])

  fi

  LIBS="$save_LIBS $i"

  if test "$i" = "" ; then i="(none)" ; fi

  AC_MSG_RESULT($i)

  dnl XXX FIXME: use pkg-config if available!

  AC_DEFINE(SSL_ENABLE)

else

  AC_MSG_NOTICE(Disabling SSL support.)

fi

case "$LIBS" in *-lssl*)

	AC_CHECK_DECLS([SSLv2_client_method],,,[#include <openssl/ssl.h>])

	;;

esac

###	use option --with-socks=DIR to point at SOCKS library

AC_ARG_WITH(socks,

	[  --with-socks[=DIR]      add built-in SOCKS firewall access],

[

if test "$with_socks" != no

then

    if test "$with_socks" != yes

    then

        LDFLAGS="$LDFLAGS -L$with_socks"

    else

        AC_CHECK_LIB(socks, Rconnect,,

               AC_MSG_ERROR([could not find libsocks which is needed for built-in SOCKS support]))

    fi

    AC_DEFINE(HAVE_SOCKS,1,Define if you want built-in SOCKS support)

    CFLAGS="$CFLAGS -Dconnect=Rconnect -Dgetsockname=Rgetsockname -Dbind=Rbind -Daccept=Raccept -Dlisten=Rlisten -Dselect=Rselect"

    LIBS="-lsocks $LIBS"

fi])

###     use option --with-socks5=DIR to point at SOCKS library

AC_ARG_WITH(socks5,

        [  --with-socks5[=DIR]     add built-in SOCKS5 firewall access],

[

if test "$with_socks5" != no

then

  if test "$with_socks5" != yes

  then

    LDFLAGS="$LDFLAGS -L$with_socks5"

  fi

  ac_savedLDFLAGS="$LDFLAGS"

  LDFLAGS="$LDFLAGS $LDFLAGS"

  AC_CHECK_LIB(socks5, SOCKSconnect,,

  	AC_MSG_ERROR([could not find libsocks5 which is needed for built-in SOCKS5 support]))

  AC_DEFINE(HAVE_SOCKS)

  CFLAGS="$CFLAGS -Dconnect=SOCKSconnect -Dgetsockname=SOCKSgetsockname -Dbind=SOCKSbind -Daccept=SOCKSaccept -Dlisten=SOCKSlisten -Dselect=SOCKSselect -Drecvfrom=SOCKSrecvfrom -Dsendto=SOCKSsendto -Drecv=SOCKSrecv -Dsend=SOCKSsend -Dread=SOCKSread -Dwrite=SOCKSwrite -Drresvport=SOCKSrresvport -Dshutdown=SOCKSshutdown -Dlisten=SOCKSlisten -Dclose=SOCKSclose -Ddup=SOCKSdup -Ddup2=SOCKSdup2 -Dgethostbyname=SOCKSgethostbyname"

  AC_CHECK_FUNC(SOCKSfclose, [CFLAGS="$CFLAGS -Dfclose=SOCKSfclose"])

  LDFLAGS="$ac_savedLDFLAGS"

fi])

dnl for libesmtp/ modules:

ACX_WHICH_GETHOSTBYNAME_R

###	use option --with-hesiod=DIR to point at a HESIOD directory

AC_ma_SEARCH_PACKAGE(hesiod, hesiod_getmailhost, /usr/athena /usr /usr/local,hesiod, hesiod.h)

###	use option --with-gssapi=DIR to compile in GSSAPI support

AC_ARG_WITH(gssapi,

	[  --with-gssapi[=DIR]     compile in GSSAPI support using libraries in DIR],

[

if test "$with_gssapi" != "no"

then

  if test "$with_gssapi" = "yes" -a -n "$with_kerberos5"

  then

    with_gssapi=$with_kerberos5

  fi

  if test "$with_gssapi" != "yes" -a -n "$with_gssapi"

  then

    CFLAGS="$CFLAGS -I$with_gssapi/include"

    LDFLAGS="$LDFLAGS -L$with_gssapi/lib"

  fi

  dnl obtain gssapi default libs

  if krb5-config --libs gssapi 2>/dev/null >/dev/null ; then

      LIBS="$LIBS `krb5-config --libs gssapi`"

  else

    AC_CHECK_LIB(gss, gss_check_version, LIBS="$LIBS -lgss", nogss=t)

    if test -n "$nogss"

    then

      # -lgss not found

      if test "$with_gssapi" = yes ; then

	  with_gssapi=/usr

      fi

      if test -f "$with_gssapi/include/roken.h" -o -f "$with_gssapi/include/krb5/roken.h"

      then

         # have roken.h, assume Heimdal

	 case `uname` in

	     NetBSD) LIBS="$LIBS -lkrb5" ;;

	     *)      LIBS="$LIBS -lkrb5 -lasn1 -ldes -lroken -ldb -ldl" ;;

	 esac

         AC_CHECK_LIB(gssapi, gss_init_sec_context,LIBS="$LIBS -lgssapi",

                      AC_MSG_ERROR([could not find libgssapi which is needed for GSSAPI support]), )

         AC_DEFINE(HEIMDAL)

      else

         # no roken.h, assume MIT

         AC_CHECK_LIB(gssapi_krb5, gss_init_sec_context,LIBS="$LIBS -lgssapi_krb5",

                      AC_MSG_ERROR([could not find libgssapi_krb5 which is needed for GSSAPI support]), -lkrb5)

      fi

    fi

  fi

  AC_DEFINE(GSSAPI,1,Define if you want GSSAPI authentication)

  if test "$with_gssapi" != yes ; then

    CPPFLAGS="$CPPFLAGS -I$with_gssapi/include"

  fi

  AC_CHECK_HEADERS(gss.h gssapi.h gssapi/gssapi.h gssapi/gssapi_generic.h)

  if test "$ac_cv_header_gssapi_h" = "yes"; then

    AC_EGREP_HEADER(GSS_C_NT_HOSTBASED_SERVICE, gssapi.h, AC_DEFINE(HAVE_GSS_C_NT_HOSTBASED_SERVICE,1,Define if you have MIT kerberos))

  else

    AC_EGREP_HEADER(GSS_C_NT_HOSTBASED_SERVICE, gssapi/gssapi.h, AC_DEFINE(HAVE_GSS_C_NT_HOSTBASED_SERVICE))

  fi

fi])

dnl ,------------------------------------------------------------------

dnl Check if we need TRIO

needtrio=0

if test "$FORCE_TRIO" = "yes" ; then

    needtrio=1

    ac_cv_func_vsnprintf=no

    ac_cv_func_snprintf=no

fi

if test "x$ac_cv_func_snprintf" != "xyes" ; then

    AC_DEFINE(snprintf, trio_snprintf,

	      [Define to trio_snprintf if your system lacks snprintf])

    needtrio=1

fi

if test "x$ac_cv_func_vsnprintf" != "xyes" ; then

    AC_DEFINE(vsnprintf, trio_vsnprintf,

	      [Define to trio_vsnprintf if your system lacks vsnprintf])

    needtrio=1

fi

AM_CONDITIONAL(NEED_TRIO, test "$needtrio" = 1)

dnl TRIO IEEE compiler option for Alpha

dnl

if test "$needtrio" = 1 ; then

    AC_MSG_CHECKING(for IEEE compilation options)

    AC_CACHE_VAL(ac_cv_ieee_option, [

    AC_TRY_COMPILE(,[

    #if !(defined(__alpha) && (defined(__DECC) || defined(__DECCXX) || (defined(__osf__) && defined(__LANGUAGE_C__))) && (defined(VMS) || defined(__VMS)))

    # error "Option needed"

    #endif

    ],ac_cv_ieee_option="/IEEE_MODE=UNDERFLOW_TO_ZERO/FLOAT=IEEE",

    AC_TRY_COMPILE(,[

    #if !(defined(__alpha) && (defined(__DECC) || defined(__DECCXX) || (defined(__osf__) && defined(__LANGUAGE_C__))) && !(defined(VMS) || defined(__VMS)) && !defined(_CFE))

    # error "Option needed"

    #endif

    ],ac_cv_ieee_option="-ieee",

    AC_TRY_COMPILE(,[

    #if !(defined(__alpha) && (defined(__GNUC__) && (defined(__osf__) || defined(__linux__))))

    # error "Option needed"

    #endif

    ],ac_cv_ieee_option="-mieee",

    ac_cv_ieee_option="none"

    )

    )

    )

    ])

    AC_MSG_RESULT($ac_cv_ieee_option)

    if test $ac_cv_ieee_option != none; then

      CFLAGS="${CFLAGS} ${ac_cv_ieee_option}"

    fi

fi

dnl ----------------------------------------------------------------'

AC_CONFIG_FILES([Makefile po/Makefile.in genlsm.sh])

AC_OUTPUT

dnl Local Variables:

dnl comment-start: "dnl "

dnl comment-end: ""

dnl comment-start-skip: "\\bdnl\\b\\s *"

dnl compile-command: "make configure config.h.in"

dnl End: