dnl Autoconfigure input file for fetchmail # # Fetchmail automatic configuration support # # Eric S. Raymond # 2004 - 2021 Matthias Andree # 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],[6.4.21],[fetchmail-users@lists.sourceforge.net]) 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([silent-rules -Wall]) AM_SILENT_RULES 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! # # recent Python 3.x versions are supported. # AM_PATH_PYTHON(2.7,,AC_MSG_WARN([Disabling fetchmailconf: python 2.7 or greater not found])) AM_CONDITIONAL([HAVE_PYTHON], [test "$PYTHON" != :]) AC_USE_SYSTEM_EXTENSIONS AC_PROG_AWK AC_PROG_CC AM_PROG_CC_C_O AC_PROG_INSTALL AC_PROG_CPP dnl Later checks need this. AM_PROG_AR AC_PROG_RANLIB AM_PROG_CC_C_O 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_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_TYPE_UINT32_T AC_CHECK_HEADERS([resolv.h],,,[ #include #include #ifdef HAVE_ARPA_NAMESER_H #include #endif ]) AC_CHECK_DECLS([h_errno],,,[ AC_INCLUDES_DEFAULT #ifdef HAVE_NETDB_H #include #endif ]) AC_C_CONST dnl getopt needs this. AC_C_INLINE dnl uid_db.? need this. AC_C_RESTRICT dnl fm_realpath needs this. AC_C_VOLATILE dnl check for ANSI volatile 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 $LDFLAGS | sed "s/-s //"` ;; esac AC_CACHE_SAVE dnl i18n AM_GNU_GETTEXT([external], [need-ngettext]) AM_GNU_GETTEXT_VERSION([0.19.8]) dnl end i18n # Under sysV68, socket and friends are provided by the C library. # -linet does not provide socket, but causes multiple definition # errors at link-time. It is thus better to only use the C library. # So don't add -linet to the link list unless it's necessary AC_CHECK_FUNC(socket, AC_MSG_RESULT(using libc's socket), AC_CHECK_LIB(socket,socket) AC_CHECK_LIB(inet,socket)) # The condition in this test copes with the presence of inet_addr in libc6. AC_CHECK_FUNC(inet_addr, AC_MSG_RESULT(using libc's inet_addr), AC_CHECK_LIB(nsl,inet_addr)) dnl Port hack for Interactive UNIX System V/386 Release 3.2 AC_CHECK_LIB(cposix, strchr, [DEFS="$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="$EXTRAOBJ getopt.\$(OBJEXT) getopt1.\$(OBJEXT)"]) AC_FUNC_VPRINTF AC_SUBST(EXTRAOBJ) AC_CHECK_FUNCS(tcsetattr stty setsid geteuid seteuid dnl strerror syslog snprintf vprintf vsnprintf vsyslog dnl atexit inet_aton strftime setrlimit socketpair dnl sigaction strdup setlocale) AC_CHECK_DECLS([strerror]) AC_CHECK_DECLS([PATH_MAX],,,[#include ]) dnl INET6 is used by KAME/getnameinfo AC_CACHE_CHECK(for AF_INET6/PF_INET6,ac_cv_inet6, AC_COMPILE_IFELSE([ AC_LANG_PROGRAM([[ #include #include ]],[[ int foo = AF_INET6; int bar = PF_INET6; ]])], ac_cv_inet6=yes , ac_cv_inet6=no )) if test "x$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 $lib" AC_LINK_IFELSE([AC_LANG_PROGRAM([[ #include #include #ifdef HAVE_ARPA_NAMESER_H #include #endif #ifdef HAVE_RESOLV_H #include #endif extern int res_search(); ]], [[res_search(0, 0, 0, 0, 0); dn_skipname(0,0);]])], [AC_MSG_RESULT([found]) AC_DEFINE(HAVE_RES_SEARCH, [1], [Define to 1 if you have the 'res_search' and 'dn_skipname' functions.]) break], [AC_MSG_RESULT([not found])]) LIBS=$old_LIBS done dnl Check for 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 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 #include ]], [[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 /* NetBSD declares sys_siglist in . */ #include ]], [[char *msg = *(sys_siglist + 1);]])],[AC_DEFINE(SYS_SIGLIST_DECLARED,1,[Define if 'sys_siglist' is declared by .]) 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, [AS_HELP_STRING([--disable-POP3], [do not 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 "$with_POP3" = yes) ### use option --disable-IMAP to omit the IMAP support AC_ARG_ENABLE(IMAP, [AS_HELP_STRING([--disable-IMAP], [do not compile in IMAP protocol support])], [with_IMAP=$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, [AS_HELP_STRING([--disable-ETRN],[do not 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 "$with_ETRN" = yes) ### use option --disable-ODMR to omit the ODMR support AC_ARG_ENABLE(ODMR, [AS_HELP_STRING([--disable-ODMR],[do not compile in ODMR protocol support])], [with_ODMR=$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, [AS_HELP_STRING([--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 "$with_RPA" = yes) ### use option --enable-NTLM to compile in the NTLM support AC_ARG_ENABLE(NTLM, [AS_HELP_STRING([--enable-NTLM],[compile in NTLM authentication support])], [with_NTLM=$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, [AS_HELP_STRING([--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, [AS_HELP_STRING([--enable-opie],[support one-time passwords (OTP) through the OPIE library])], [ AC_CHECK_HEADER(opie.h,, [AC_MSG_ERROR([cannot find , 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 #ifdef HAVE_SYS_SOCKET_H #include #endif #ifdef HAVE_NETDB_H #include #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 #ifdef HAVE_SYS_SOCKET_H #include #endif #ifdef HAVE_NETDB_H #include #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 $host_os in darwin*) gai_ts=yes ;; linux*) gai_ts=yes ;; freebsd*) gai_ts=yes ;; solaris*) gai_ts=yes ;; esac AC_MSG_RESULT($gai_ts) if test $gai_ts = yes ; then AC_DEFINE(GETADDRINFO_ASYNCSAFE, 1, [define to 1 if you know your getaddrinfo function is async-signal-safe]) fi fi # This version of the Kerberos 4 and 5 options addresses the follwing issues: # # * Build correctly under Heimdal kerberos if it is compiled with db2 and # OpenSSL support (Debian's is) # * Build the kerberos.c stuff (KPOP) only for kerberosIV, to avoid breakage. # I don't know if this is 100% correct, but now at least IMAP and POP3 # behave the same way regarding kerberosV. # * Build without any fuss for both kerberosIV and V at the same time. # * Move all the kerberos header mess to kerberos.h, and #include that # in driver.c and kerberos.c. # # Tested using the Heimdal Kerberos V libs, Kungliga Tekniska Högskolan (the # Royal Institute of Technology in Stockholm, Sweden)'s kerberos IV libs, and # the MIT reference implementation of KerberosV (all as packaged in Debian). ### use option --with-kerberos5=DIR to point at a Kerberos 5 directory ### make sure --with-ssl is run before --with-kerberos* ! AC_ARG_WITH(kerberos5, [AS_HELP_STRING([--with-kerberos5[[=DIR]]],[point fetchmail compilation at a Kerberos 5 directory])], [ if test "$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 "$KERBEROS_V4" = 1) ### use option --with-ssl to compile in the SSL support AC_ARG_WITH(ssl, [AS_HELP_STRING([--with-ssl[[={yes|no|DIR}]]],[Use OpenSSL from DIR/include/openssl and DIR/lib (default: yes). Yes means try to find it.])], [with_ssl=$withval], [with_ssl=yes]) 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" LDFLAGS="$LDFLAGS -L$with_ssl/lib" ### In Red Hat 9, this file includes a reference to , so we ### force the Kerberos directory onto the include path so it will build. CFLAGS="$CFLAGS -I/usr/kerberos/include" ### OpenBSD comes with ssl headers else AC_MSG_ERROR([SSL support enabled, but OpenSSL not found]) fi PKG_CHECK_MODULES([SSL],[libssl libcrypto],[LIBS="$LIBS $SSL_LIBS"],[ AS_MESSAGE([SSL-check: pkg-config check failed, using traditional probe]) LDFLAGS="$LDFLAGS -L$with_ssl/lib" AC_LIB_LINKFLAGS([crypto]) AC_LIB_LINKFLAGS([ssl], [crypto]) LIBS="$LIBS $LIBSSL $LIBCRYPTO" dnl check if -ldl is needed AC_MSG_CHECKING([for additional library dependencies of SSL]) found=0 save_LIBS="$LIBS" for i in "" "-ldl" ; do LIBS="$LDFLAGS $save_LIBS $i" AC_LINK_IFELSE([AC_LANG_PROGRAM([#include ],[SSL_connect((SSL *)0)])],[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($i) ]) AC_DEFINE(SSL_ENABLE, 1, [Define if you want SSL support compiled in]) AS_MESSAGE(Enabling SSL support.) else AC_MSG_WARN(Disabling SSL support.) AC_MSG_WARN(Consider re-running configure --with-ssl.) fi if test "$cross_compiling" != yes -a "$with_ssl" != "no" then AC_LIB_LINKFLAGS([crypto]) AC_LIB_LINKFLAGS([ssl], [crypto]) LIBS="$LIBS $LIBSSL $LIBCRYPTO" fi AC_MSG_NOTICE([LIBS:] "$LIBS") case "$LIBS" in *-lssl*|*libssl*) AC_CHECK_DECLS([TLS1_3_VERSION],, AC_MSG_WARN([Your OpenSSL version is too old and does not support TLS v1.3. Upgrade.]), [#include ]) AC_CHECK_DECLS([TLS1_2_VERSION],, AC_MSG_ERROR([Your OpenSSL version is too old and does not support TLS v1.2. Upgrade.]), [#include ]) AC_CHECK_DECLS([SSLv3_client_method],,,[#include ]) ;; esac ### use option --with-socks=DIR to point at SOCKS library AC_ARG_WITH(socks, [AS_HELP_STRING([--with-socks[[=DIR]]],[add built-in SOCKS (4) firewall access])], [ if test "$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 $LIBS" fi]) ### use option --with-socks5=DIR to point at SOCKS library AC_ARG_WITH(socks5, [AS_HELP_STRING([--with-socks5[[=DIR]]],[add built-in SOCKS5 firewall access])], [ if test "$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" AC_CHECK_FUNC(SOCKSfclose, [CFLAGS="$CFLAGS -Dfclose=SOCKSfclose"]) LDFLAGS="$ac_savedLDFLAGS" fi]) ### 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, [AS_HELP_STRING([--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$with_gssapi/include" fi AC_CHECK_HEADERS(gss.h gssapi.h gssapi/gssapi.h gssapi/gssapi_generic.h) AC_CHECK_DECLS(GSS_C_NT_HOSTBASED_SERVICE,,,[ AC_INCLUDES_DEFAULT #if HAVE_GSS_H #include #endif #if HAVE_GSSAPI_GSSAPI_H #include #elif HAVE_GSSAPI_H #include #endif #if HAVE_GSSAPI_GSSAPI_GENERIC_H #include #endif ]) fi]) dnl ,------------------------------------------------------------------ dnl Check if we need TRIO needtrio=0 if test "$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]) 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: