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configure.ac
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configure.ac
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# -*- Autoconf -*-
# Process this file with autoconf to produce a configure script.
#
# Copyright (c) 2009-2015, 2018, The Trusted Domain Project.
# All rights reserved.
#
#
# Setup
#
AC_PREREQ([2.71])
#
# Package version
#
m4_define([VERSION_RELEASE], 2)
m4_define([VERSION_MAJOR_REV], 11)
m4_define([VERSION_MINOR_REV], 0)
m4_define([VERSION_PATCH], 0)
#
# Library version
# - bump "current" and reset "revision" with API changes
# - bump "revision" with internal source code changes
#
m4_define([LIBVERSION_CURRENT], 11)
m4_define([LIBVERSION_REVISION], 0)
m4_define([LIBVERSION_AGE], 0)
#
# Autotools setup
#
AC_INIT([OpenDKIM],[VERSION_RELEASE.VERSION_MAJOR_REV.VERSION_MINOR_REV],[[email protected]])
AC_CONFIG_AUX_DIR([build-aux])
AM_INIT_AUTOMAKE(
1.11.1
dnl Automake version before 1.13 (when the serial-tests option was
dnl still the default) still defined the badly obsolete macro
dnl 'AC_PROG_INSTALL'.
m4_ifndef([AC_PROG_INSTALL], [serial-tests])
)
AC_CONFIG_HEADERS([build-config.h])
AC_CONFIG_MACRO_DIR([m4])
#
# Hexadecimal version, for use in generating dkim.h
#
HEX_VERSION=$(printf %08x $(( ((VERSION_RELEASE << 8 | VERSION_MAJOR_REV) << 8 | VERSION_MINOR_REV) << 8| VERSION_PATCH )))
AC_SUBST([HEX_VERSION])
#
# library version, passed to libtool
#
LIBOPENDKIM_VERSION_INFO=$(printf %d:%d:%d LIBVERSION_CURRENT LIBVERSION_REVISION LIBVERSION_AGE)
AC_SUBST([LIBOPENDKIM_VERSION_INFO])
#
# Checks for programs
#
AC_PROG_CC
# AC_REQUIRE(AC_PROG_CC)
AM_PROG_CC_C_O
LT_INIT
PKG_PROG_PKG_CONFIG
#
# Check for how to compile threaded stuff
#
AX_PTHREAD
#
# save outer values
#
outer_CFLAGS="$CFLAGS"
outer_CPPFLAGS="$CPPFLAGS"
outer_LDFLAGS="$LDFLAGS"
outer_LIBS="$LIBS"
#
# Checks for libraries
#
saved_LIBS="$LIBS"
LIBS=""
AC_SEARCH_LIBS(inet_addr, nsl)
LIBNSL_LIBS="$LIBS"
LIBS="$saved_LIBS"
AC_SUBST([LIBNSL_LIBS])
saved_LIBS="$LIBS"
LIBS=""
AC_SEARCH_LIBS(dlopen, dl)
LIBDL_LIBS="$LIBS"
LIBS="$saved_LIBS"
AC_SUBST([LIBDL_LIBS])
AC_SEARCH_LIBS(socket, socket)
AC_SEARCH_LIBS(inet_aton, resolv)
AC_SEARCH_LIBS(inet_pton, resolv,
AC_DEFINE(HAVE_INET_PTON, 1,
[Define to 1 if you have the `inet_pton()' function.]))
AC_SEARCH_LIBS(inet_ntop, resolv nsl,
AC_DEFINE(HAVE_INET_NTOP, 1,
[Define to 1 if you have the `inet_ntop()' function.]))
AC_SEARCH_LIBS(getaddrinfo, resolv,
AC_DEFINE(HAVE_GETADDRINFO, 1,
[Define to 1 if you have the `getaddrinfo()' function.]))
# You might find res_ninit() in system libraries or in libresolv or not
# at all. The way AC_LANG_CALL finds out is it declares res_ninit() so
# it can call it, then it sees if linking fails because of unresolved
# symbols. Great, except glibc doesn't export res_ninit() -- it exports
# __res_ninit() -- res_ninit() is a macro in resolv.h. So unless we
# include resolv.h, we won't find res_ninit(), but when we do include
# it, it conflicts with AC_LANG_CALL's redeclaration. Hmm. I guess the
# only thing for it is to include resolv.h, don't redeclare res_ninit(),
# and use the proper type signature when calling it.
# Before using resolv.h, we need to check headers required for it.
AC_HEADER_RESOLV
m4_rename([AC_LANG_CALL], [saved_AC_LANG_CALL])
m4_define([AC_LANG_CALL], [AC_LANG_PROGRAM([#ifdef HAVE_SYS_TYPES_H
# include <sys/types.h>
#endif
#ifdef HAVE_NETINET_IN_H
# include <netinet/in.h> /* inet_ functions / structs */
#endif
#ifdef HAVE_ARPA_NAMESER_H
# include <arpa/nameser.h> /* DNS HEADER struct */
#endif
#ifdef HAVE_NETDB_H
# include <netdb.h>
#endif
#include <resolv.h>],
[return res_ninit(NULL);])])
AC_SEARCH_LIBS(res_ninit, resolv bind,
AC_DEFINE(HAVE_RES_NINIT, 1,
[Define to 1 if you have the `res_ninit()' function.]))
m4_rename_force([saved_AC_LANG_CALL], [AC_LANG_CALL])
AC_SEARCH_LIBS(res_setservers, resolv bind,
AC_DEFINE(HAVE_RES_SETSERVERS, 1,
[Define to 1 if you have the `res_setservers()' function.]))
AC_SEARCH_LIBS(getopt_long, iberty,
AC_DEFINE(HAVE_GETOPT_LONG, 1,
[Define to 1 if you have the `getopt_long()' function.]))
#
# Check for types
#
AC_CHECK_TYPES([useconds_t])
#
# See if libopendkim will need -lresolv
#
dnscheck='
#include "confdefs.h"
#include <sys/types.h>
#include <netinet/in.h>
#include <arpa/nameser.h>
#include <resolv.h>
int main(int argc, char** argv) {
res_mkquery (0, 0, 0, 0, 0, 0, 0, 0, 0);
dn_expand (0, 0, 0, 0, 0);
dn_skipname (0, 0);
dn_comp (0, 0, 0, 0, 0);
return 0;
}'
AC_MSG_CHECKING([whether the resolver works without -lresolv])
LIBRESOLV=
AC_LINK_IFELSE([AC_LANG_SOURCE([
$dnscheck
])] , [
AC_MSG_RESULT(yes)
] , [
AC_MSG_RESULT(no)
AC_MSG_CHECKING([whether the resolver works with -lresolv])
saved_LIBS="$LIBS"
LIBS="$outer_LIBS -lresolv"
AC_LINK_IFELSE([AC_LANG_SOURCE([
$dnscheck
])] , [
AC_MSG_RESULT(yes)
LIBRESOLV=-lresolv
] , [
AC_MSG_RESULT(no)
AC_MSG_ERROR([need workable resolver library])
])
LIBS="$saved_LIBS"
])
AC_SUBST([LIBRESOLV])
#
# Checks for header files
#
AC_CHECK_HEADERS([arpa/inet.h fcntl.h limits.h iso/limits_iso.h netdb.h netinet/in.h paths.h stdlib.h string.h sys/file.h sys/param.h sys/socket.h sys/time.h syslog.h unistd.h stdint.h])
#
# Checks for typedefs, structures, and compiler characteristics.
#
AC_HEADER_STDBOOL
AC_TYPE_UID_T
AC_TYPE_MODE_T
AC_TYPE_OFF_T
AC_TYPE_PID_T
AC_TYPE_SIZE_T
AC_TYPE_SSIZE_T
AC_TYPE_UINT16_T
AC_TYPE_UINT32_T
AC_TYPE_UINT64_T
#
# Checks for library functions.
#
AC_FUNC_FORK
AC_FUNC_GETGROUPS
AC_FUNC_MALLOC
AC_FUNC_MKTIME
AC_FUNC_REALLOC
AC_CHECK_FUNCS([dup2 endpwent getcwd gethostname gethostbyname getaddrinfo gethostbyname2 gettimeofday isascii memchr memmove memset regcomp select socket strcasecmp strchr strdup strerror strncasecmp strrchr strstr strtol strtoul strtoull realpath strsep])
bsdstrl_h_found="no"
strl_found="no"
libstrl_found="no"
strl_h_found="no"
AC_CHECK_HEADERS([bsd/string.h], [bsdstrl_h_found="yes"])
AC_CHECK_FUNCS([strlcat strlcpy], [strl_found="yes"],
[
saved_LIBS="$LIBS"
LIBS="$outer_LIBS"
AC_SEARCH_LIBS([strlcat],
[bsd strl],
[libstrl_found="yes"],
[strl_found="no"])
AC_SEARCH_LIBS([strlcpy],
[bsd strl],
[libstrl_found="yes"],
[strl_found="no"])
STRL_LIBS="$LIBS"
LIBS="$saved_LIBS"
])
if test x"$libstrl_found" = x"yes"
then
LIBS="$LIBS $STRL_LIBS"
fi
# we need something above to have worked
if test x"$strl_found" != x"yes" -a x"$libstrl_found" != x"yes"
then
AC_MSG_ERROR(no strlcpy/strlcat found)
fi
AC_CHECK_HEADERS([strl.h], [strl_h_found="yes"])
if test x"$strl_h_found" != x"yes"
then
strldirs="/usr/local/include/strl /usr/local/include /usr/include/strl"
for d in $strldirs
do
AC_MSG_CHECKING([for strl.h in $d])
if test -f $d/strl.h
then
unset ac_cv_header_strl_h
saved_CPPFLAGS="$CPPFLAGS"
CPPFLAGS="$CPPFLAGS -I$d"
AC_CHECK_HEADERS([strl.h], [strl_h_found="yes"])
CPPFLAGS="$saved_CPPFLAGS"
fi
if test x"$strl_h_found" = x"yes"
then
CPPFLAGS="$CPPFLAGS -I$d"
break
fi
done
fi
# we need to include <strl.h> if an installed strl.h was found and no
# bsd/string.h was found
if test x"$strl_h_found" = x"yes" -a x"$bsdstrl_h_found" = x"no"
then
AC_DEFINE([USE_STRL_H], 1,
[Define to 1 if you need to include <strl.h> to get the `strlcat()' and `strlcpy()' functions.])
fi
if test x"$bsdstrl_h_found" = x"yes"
then
AC_DEFINE([USE_BSD_H], 1,
[Define to 1 if you need to include <bsd/string.h> to get the `strlcat()' and `strlcpy()' functions.])
fi
#
# Checks for structure members
#
AC_CHECK_MEMBER([struct sockaddr_un.sun_len],
AC_DEFINE([HAVE_SUN_LEN],
[1],
[Define if sockaddr_un has a sun_len member]),
[],
[[#include <sys/un.h>]])
AC_CHECK_MEMBER([struct sockaddr_in.sin_len],
AC_DEFINE([HAVE_SIN_LEN],
[1],
[Define if sockaddr_in has a sin_len member]),
[],
[[#include <netinet/in.h>]])
AC_CHECK_MEMBER([struct sockaddr_in6.sin6_len],
AC_DEFINE([HAVE_SIN6_LEN],
[1],
[Define if sockaddr_in6 has a sin6_len member]),
[],
[[#include <netinet/in.h>]])
#
# Library feature string and macros
#
LIBOPENDKIM_FEATURE_STRING="libopendkim $PACKAGE_VERSION:"
AC_DEFUN([TR_UP], [m4_translit([AS_TR_SH([$1])], [a-z], [A-Z])])
AC_DEFUN([FEATURE],
[notincluded="(Not enabled for this installation.)"
AC_ARG_ENABLE($1, AS_HELP_STRING(--enable-$1, $2),
AS_IF([test "x$enable_]$1[" = "xyes"],
[
AC_SUBST(TR_UP($1)[_MANNOTICE], "")
AC_DEFINE(TR_UP($1), 1, [enable $1 feature])
],
[
AC_SUBST(TR_UP($1)[_MANNOTICE], $notincluded)
]),
AC_SUBST(TR_UP($1)[_MANNOTICE], $notincluded))
])
AC_DEFUN([LIB_FEATURE],
[FEATURE($1, $2)
AS_IF([test "x$enable_]$1[" = "xyes"],
[
LIBOPENDKIM_FEATURE_STRING="$LIBOPENDKIM_FEATURE_STRING $1"
])
])
AC_DEFUN([FFR_FEATURE],
[experimentalnotincluded="(Experimental feature not enabled for this installation.)"
AC_ARG_ENABLE($1, AS_HELP_STRING(--enable-$1, $2),
AS_IF([test "x$enable_]$1[" = "xyes"],
[
AC_DEFINE([_FFR_]TR_UP($1), 1,
[enable $1 feature])
AC_SUBST(TR_UP($1)[_MANNOTICE],
"(Note: Feature is experimental.)")
],
[
AC_SUBST(TR_UP($1)[_MANNOTICE],
$experimentalnotincluded)
]),
AC_SUBST(TR_UP($1)[_MANNOTICE],
$experimentalnotincluded))
])
AC_DEFUN([LIB_FFR_FEATURE],
[FFR_FEATURE($1, $2)
AS_IF([test "x$enable_]$1[" = "xyes"],
[
LIBOPENDKIM_FEATURE_STRING="$LIBOPENDKIM_FEATURE_STRING $1"
])
])
#
# opendkim
#
FEATURE([popauth], [enable POP-before-SMTP support])
FFR_FEATURE([atps], [experimental Authorized Third Party Signers checks])
LIB_FFR_FEATURE([atps], [experimental Authorized Third Party Signers checks])
AM_CONDITIONAL([ATPS], [test x"$enable_atps" = x"yes"])
FFR_FEATURE([conditional], [experimental conditional signatures])
LIB_FFR_FEATURE([conditional], [experimental conditional signatures])
AM_CONDITIONAL([CONDITIONAL], [test x"$enable_conditional" = x"yes"])
FFR_FEATURE([db_handle_pools], [experimental database handle pools])
FFR_FEATURE([diffheaders], [compare signed and verified headers when possible])
LIB_FFR_FEATURE([diffheaders],
[compare signed and verified headers when possible])
FFR_FEATURE([identity_header], [special header to set identity])
FFR_FEATURE([ldap_caching], [LDAP query piggybacking and caching])
FFR_FEATURE([postgresql_reconnect_hack],
[hack to overcome PostgreSQL connection error detection bug])
FFR_FEATURE([rate_limit], [support for DKIM-based rate limiting])
FFR_FEATURE([replace_rules], [support for string substitution when signing])
AM_CONDITIONAL([REPLACE_RULES], [test x"$enable_replace_rules" = x"yes"])
FFR_FEATURE([reprrd],
[support for experimental reputation checks using RRD])
AM_CONDITIONAL([REPRRD], [test x"$enable_reprrd" = x"yes"])
AC_CHECK_PROG([hasrrdtool], [rrdtool], [yes])
if test x"$enable_reprrd" = x"yes" -a x"$hasrrdtool" != x"yes"
then
AC_MSG_ERROR([--enable-reprrd requires rrdtool binary, not found])
fi
FFR_FEATURE([reputation],
[support for experimental reputation checks])
if test x"$enable_reputation" = x"yes"
then
AC_SEARCH_LIBS([ceil], [m])
fi
AM_CONDITIONAL([REPUTE], [test x"$enable_reputation" = x"yes"])
FFR_FEATURE([resign],
[support for one-step re-signing])
FFR_FEATURE([sender_macro], [macro to determine sender])
FFR_FEATURE([socketdb], [arbitrary socket data sets])
FFR_FEATURE([stats], [stats recording and reporting])
AM_CONDITIONAL([STATS], [test x"$enable_stats" = x"yes"])
FFR_FEATURE([statsext], [extended stats recording and reporting])
FFR_FEATURE([rbl], [Realtime Blacklist query support])
AM_CONDITIONAL([RBL], [test x"$enable_rbl" = x"yes"])
FFR_FEATURE([vbr], [Vouch-By-Reference support])
AM_CONDITIONAL([VBR], [test x"$enable_vbr" = x"yes"])
if test x"$enable_statsext" = x"yes" -a x"$enable_stats" != x"yes"
then
AC_MSG_ERROR([--enable-statsext requires --enable-stats])
fi
FFR_FEATURE([default_sender], [default sender address])
# sendmail command
AC_PATH_PROG([SENDMAIL_PATH], [sendmail], [/usr/sbin/sendmail],
[/sbin:/usr/sbin:/usr/local/bin:/usr/local/sbin:/usr/lib:$PATH])
AC_DEFINE_UNQUOTED([SENDMAIL_PATH], "$ac_cv_path_SENDMAIL_PATH",
[The path the the sendmail executable for report sending])
AC_SUBST([SENDMAIL_PATH])
#
# use rpath at load time?
#
AC_ARG_ENABLE(
[rpath],
AS_HELP_STRING([--enable-rpath],
[include library load paths in binaries]),
,
enable_rpath="yes")
AM_CONDITIONAL([RPATH], [test x"$enable_rpath" = x"yes"])
if test x"$enable_rpath" != x"yes"
then
AC_MSG_RESULT([Suppressing -rpath use by libtool])
hardcode_libdir_flag_spec=" -D__LIBTOOL_NO_RPATH__ "
chmod 0755 libtool
fi
#
# test coverage/profiling stuff
#
AC_ARG_ENABLE([codecoverage],
AS_HELP_STRING([--enable-codecoverage],
[include code coverage/profiling code]))
if test x"$enable_codecoverage" = x"yes"
then
# gcc can do all of them; Solaris cc can only do gprof
AC_CHECK_PROG([hasgcc], [gcc], [yes])
AC_CHECK_PROG([hascc], [cc], [yes])
if test x"$hasgcc" != x"yes" -a x"$hascc" = x"yes"
then
if test x`cc -V 2>&1 | grep -c "Sun C"` = x"1"
then
hassuncc="yes"
fi
fi
# figure out which profiling system to use
AC_CHECK_PROG([hasgprof], [gprof], [yes])
AC_ARG_WITH(gprof,
AS_HELP_STRING(--with-gprof, profiling with gprof),
hasgprof="$withval")
if test x"$hasgcc" = x"yes"
then
AC_CHECK_PROG([hasgcov], [gcov], [yes])
AC_ARG_WITH(gcov,
AS_HELP_STRING(--with-gcov, profiling with gcov),
hasgcov="$withval")
AC_CHECK_PROG([haslcov], [lcov], [yes])
AC_ARG_WITH(lcov,
AS_HELP_STRING(--with-lcov, profiling with lcov),
haslcov="$withval")
fi
# bail if none
if test x"$hasgprof" != x"yes" -a \
x"$hasgcov" != x"yes" -a \
x"$haslcov" != x"yes"
then
AC_MSG_ERROR([no supported test coverage packages found])
fi
# see if there's a libgcov (OpenBSD doesn't have one)
if test x"$hasgcov" = x"yes" -a x"$haslcov" != x"yes"
then
saved_LIBS="$LIBS"
LIBS="$outer_LIBS"
AC_SEARCH_LIBS([__gcov_init], [gcov])
GCOV_LIBS="$LIBS"
LIBS="$saved_LIBS"
fi
COV_CFLAGS=""
COV_LDFLAGS=""
COV_LIBADD=""
# sun profiling
if test x"$hasgprof" = x"yes" -a \
x"$hasgcov" != x"yes" -a \
x"$hassuncc" = x"yes"
then
COV_CFLAGS="-g -xpg"
COV_LDFLAGS="-g -xpg"
# non-sun profiling
elif test x"$hasgprof" = x"yes" -a \
x"$hasgcov" != x"yes" -a \
x"$hassuncc" != x"yes"
then
COV_CFLAGS="-g -pg"
COV_LDFLAGS="-g -pg"
# gcov profiling
elif test x"$hasgcov" = x"yes"
then
COV_CFLAGS="-g -fprofile-arcs -ftest-coverage"
COV_LIBADD="$GCOV_LIBS"
fi
AC_SUBST(COV_CFLAGS)
AC_SUBST(COV_LDFLAGS)
AC_SUBST(COV_LIBADD)
fi
# see if profiling-enabled binaries generate profile output with the
# standard name "gmon.out" or "<file>.gmon"
gprof_gmon_out="unknown"
if test x"$hasgprof" = x"yes"
then
gprofcheck='
int main(int argc, char** argv) {
long x;
x = random();
}'
AC_MSG_CHECKING([names of profiling output files])
saved_CFLAGS="$CFLAGS"
saved_LDFLAGS="$LDFLAGS"
CFLAGS="$CFLAGS $COV_CFLAGS"
LDFLAGS="$LDFLAGS $COV_LDFLAGS"
AC_RUN_IFELSE([AC_LANG_SOURCE([$gprofcheck])],
[ if test -f "gmon.out"
then
gprof_gmon_out="yes"
rm -f gmon.out
AC_MSG_RESULT(gmon.out)
else
gprof_gmon_out="no"
rm -f *.gmon
AC_MSG_RESULT([<binary>.gmon])
fi
],
[AC_MSG_RESULT(unknown)])
CFLAGS="$saved_CFLAGS"
LDFLAGS="$saved_LDFLAGS"
fi
AM_CONDITIONAL(LCOV, test x"$haslcov" = x"yes" -a x"$hasgcov" = x"yes")
AM_CONDITIONAL(GCOV, test x"$hasgcov" = x"yes")
AM_CONDITIONAL(GCOV_ONLY, test x"$hasgcov" = x"yes" -a x"$haslcov" != x"yes")
AM_CONDITIONAL(GPROF, test x"$hasgprof" = x"yes" -a x"$hasgcov" != x"yes")
AM_CONDITIONAL(GPROF_FILENAMES, test x"$gprof_gmon_out" = x"no")
#
# opendkim
#
AC_ARG_ENABLE([filter],
AS_HELP_STRING([--disable-filter],
[do not compile the opendkim filter]),
[enable_filter=$enableval],
[enable_filter=yes])
AM_CONDITIONAL([BUILD_FILTER], [test x"$enable_filter" != x"no"])
#
# libopendkim
#
LIB_FEATURE([query_cache], [local key caching])
#
# Conditional stuff
#
AC_ARG_ENABLE([allsymbols],
AS_HELP_STRING([--enable-allsymbols],
[export internal-use symbols for better test coverage]))
AM_CONDITIONAL(ALL_SYMBOLS, [test x"$enable_allsymbols" = x"yes"])
# the AM_CONDITIONAL and AC_DEFINE for USE_ARLIB are farther below,
# after the Darwin checks
AC_ARG_ENABLE([debug],
AS_HELP_STRING([--enable-debug],
[produce debugging binaries and libraries]),
AS_IF([test "x$enable_debug" = x"yes"],
[
LIBOPENDKIM_FEATURE_STRING="$LIBOPENDKIM_FEATURE_STRING debug"
[[CFLAGS=`echo $CFLAGS | sed 's/ -O[1-9s]*//g'`]]
])
)
AM_CONDITIONAL([DEBUG], [test x"$enable_debug" = x"yes"])
#
# gnutls
#
AC_ARG_WITH([gnutls],
AS_HELP_STRING([--with-gnutls],
[location of GnuTLS includes and library]),
[gtpath="$withval"], [gtpath="no"])
gnutls_found="no"
if test \( x"$gtpath" = x"auto" -o x"$gtpath" = x"yes" \) -a x"$PKG_CONFIG" != x""
then
PKG_CHECK_MODULES([GNUTLS], [gnutls >= 2.11.7],
[gnutls_found="pkg-config"],
[gnutls_found="auto"
AC_MSG_WARN([pkg-config for GnuTLS not found, trying manual search...])
])
elif test x"$gtpath" != x"no"
then
AC_MSG_NOTICE([checking for GnuTLS library and includes in $gtpath])
saved_CFLAGS="$CFLAGS"
saved_CPPFLAGS="$CPPFLAGS"
saved_LDFLAGS="$LDFLAGS"
saved_LIBS="$LIBS"
LIBS="$outer_LIBS -lgnutls $saved_LIBS"
CPPFLAGS="-I$gtpath/include $saved_CPPFLAGS"
CFLAGS="$saved_CFLAGS"
LDFLAGS="-L$gtpath/lib $saved_LDFLAGS"
AC_CHECK_HEADERS([gnutls/gnutls.h], ,
AC_MSG_ERROR([required GnuTLS header not found]))
AC_SEARCH_LIBS([gnutls_global_init], [gnutls], ,
AC_MSG_ERROR([libgnutls not found]),
[-lnettle -lgmp -ldl])
LIBCRYPTO_CPPFLAGS="-I$gtpath/include"
LIBCRYPTO_LIBDIRS="-L$gtpath/lib"
LIBCRYPTO_LIBS="-lgnutls"
CFLAGS="$saved_CFLAGS"
CPPFLAGS="$saved_CPPFLAGS"
LDFLAGS="$saved_LDFLAGS"
LIBS="$saved_LIBS"
gnutls_found="yes"
fi
if test x"$gnutls_found" = x"pkg-config"
then
LIBCRYPTO_CPPFLAGS="$GNUTLS_CFLAGS"
LIBCRYPTO_LDFLAGS=""
LIBCRYPTO_LIBS="$GNUTLS_LIBS"
gnutls_found="yes"
fi
if test x"$gtpath" = x"yes" -a x"$gnutls_found" = x"auto"
then
gcdirs="/usr/local /usr"
for d in $gcdirs
do
AC_MSG_NOTICE([checking for GnuTLS library and includes in $d])
saved_CFLAGS="$CFLAGS"
saved_CPPFLAGS="$CPPFLAGS"
saved_LDFLAGS="$LDFLAGS"
saved_LIBS="$LIBS"
LIBS="$outer_LIBS -lgnutls $saved_LIBS"
CPPFLAGS="-I$d/include $saved_CPPFLAGS"
CFLAGS="$saved_CFLAGS"
LDFLAGS="$outer_LDFLAGS -L$d/lib $saved_LDFLAGS"
gnutls_h_found="no"
gnutls_lib_found="no"
AC_CHECK_HEADERS([gnutls/gnutls.h], gnutls_h_found="yes")
AC_SEARCH_LIBS([gnutls_global_init], [gnutls],
gnutls_lib_found="yes", , [-lnettle -lgmp])
CFLAGS="$saved_CFLAGS"
CPPFLAGS="$saved_CPPFLAGS"
LDFLAGS="$saved_LDFLAGS"
LIBS="$saved_LIBS"
if test x"$gnutls_h_found" = x"yes" -a \
x"$gnutls_lib_found" = x"yes"
then
LIBCRYPTO_CPPFLAGS="-I$d/include"
LIBCRYPTO_LIBDIRS="-L$d/lib"
LIBCRYPTO_LIBS="-lgnutls"
gnutls_found="yes"
AC_MSG_NOTICE(libgnutls found in $d)
break
else
AC_MSG_NOTICE(not found in $d)
fi
done
if test x"$gnutls_found" != x"yes"
then
AC_MSG_ERROR([GnuTLS not found])
fi
fi
if test x"$gnutls_found" = x"yes"
then
AC_DEFINE(USE_GNUTLS, 1,
[Define to 1 to use libgnutls instead of OpenSSL.])
saved_CPPFLAGS="$CPPFLAGS"
CPPFLAGS="$LIBCRYPTO_CPPFLAGS $saved_CPPFLAGS"
versioncheck='
#include <gnutls/gnutls.h>
#if GNUTLS_VERSION_NUMBER < 0x020b07
# error GnuTLS 2.11.7 or later required
#endif
int main(int argc, char** argv)
{
return 0;
}'
AC_MSG_CHECKING([your GnuTLS version])
AC_LINK_IFELSE([AC_LANG_SOURCE([$versioncheck])],
AC_MSG_RESULT(ok),
AC_MSG_FAILURE([GnuTLS must be at least version 2.11.7]))
sha256check='
#include <gnutls/gnutls.h>
int main(int argc, char** argv)
{
int x = GNUTLS_DIG_SHA256;
}'
AC_MSG_CHECKING([whether your GnuTLS supports SHA256])
AC_LINK_IFELSE([AC_LANG_SOURCE([$sha256check])],
AC_MSG_RESULT(yes)
AC_DEFINE([HAVE_SHA256], 1,
[Define to 1 if your crypto library has SHA256 support]),
AC_MSG_WARN([SHA256 is required for DKIM but is not
supported with your version of GnuTLS]))
CPPFLAGS="$saved_CPPFLAGS"
fi
AM_CONDITIONAL([USE_GNUTLS], [test x"$gnutls_found" = x"yes"])
#
# OpenSSL
#
AC_ARG_WITH([openssl],
AS_HELP_STRING([--with-openssl],
[location of OpenSSL includes and library]),
[sslpath="$withval"], [sslpath="auto"])
openssl_found="no"
if test x"$gnutls_found" = x"yes"
then
sslpath="skip"
openssl_found="skip"
fi
if test \( "$sslpath" = "auto" -o x"$sslpath" = x"yes" \) -a x"$PKG_CONFIG" != x""
then
PKG_CHECK_MODULES([LIBCRYPTO], [openssl >= 0.9.7],
[openssl_found="yes"],
[openssl_found="no"
AC_MSG_WARN([pkg-config for openssl not found, trying manual search...])
])
elif test "$sslpath" != "auto" -a x"$sslpath" != x"yes"
then
AC_MSG_CHECKING([for OpenSSL includes])
if test -f $sslpath/include/openssl/opensslv.h
then
LIBCRYPTO_CPPFLAGS="-I$sslpath/include"
LIBCRYPTO_CFLAGS=""
LIBCRYPTO_LIBDIRS="-L$sslpath/lib"
LIBCRYPTO_LIBS="-lssl -lcrypto"
openssl_found=yes
AC_MSG_RESULT([$sslpath])
else
AC_MSG_RESULT([no])
fi
fi
if test x"$openssl_found" = x"no"
then
AC_MSG_CHECKING([for OpenSSL library and includes])
ssldirs="/usr/local/ssl /usr/local /usr/sfw /opt/local /usr"
if test "$sslpath" = "auto" -o "$sslpath" = "yes"
then
for d in $ssldirs
do
if test -f $d/include/openssl/opensslv.h
then
sslpath=$d
openssl_found=yes
break
fi
done
fi
case "$sslpath" in
no)
AC_MSG_ERROR([OpenSSL is required])
;;
auto)
AC_MSG_ERROR([OpenSSL not found])
;;
*/*)
AC_MSG_RESULT([$sslpath])
;;
*)
AC_MSG_ERROR([OpenSSL not found])
;;
esac
LIBCRYPTO_CPPFLAGS="-I$sslpath/include"
LIBCRYPTO_CFLAGS=""
LIBCRYPTO_LIBDIRS="-L$sslpath/lib"
LIBCRYPTO_LIBS="-lssl -lcrypto"
fi
if test x"$openssl_found" = x"yes"
then
saved_CFLAGS="$CFLAGS"
saved_CPPFLAGS="$CPPFLAGS"
saved_LDFLAGS="$LDFLAGS"
saved_LIBS="$LIBS"
LIBS="$outer_LIBS $LIBCRYPTO_LIBS $saved_LIBS"
CPPFLAGS="$LIBCRYPTO_CPPFLAGS $saved_CPPFLAGS"
CFLAGS="$LIBCRYPTO_CFLAGS $saved_CFLAGS"
LDFLAGS="$outer_LDFLAGS $LIBCRYPTO_LIBDIRS $saved_LDFLAGS"
AC_CHECK_HEADERS([openssl/bio.h openssl/conf.h openssl/crypto.h openssl/err.h openssl/evp.h openssl/md5.h openssl/opensslv.h openssl/pem.h openssl/rsa.h openssl/sha.h openssl/ssl.h], ,
AC_MSG_ERROR([required OpenSSL header not found]))
# -ldl is needed to assist with compilation of static openssl libraries.
# It appears to need dl for opening engine plugins. It fails at load
# time It also fails to build on FreeBSD if enabled by default.
AC_SEARCH_LIBS([ERR_peek_error], [crypto], ,
AC_MSG_ERROR([libcrypto not found]))
AC_LINK_IFELSE(
[AC_LANG_PROGRAM([[#include <openssl/ssl.h>]],
[[SSL_library_init();]])],
[od_have_ossl="yes";],
[od_have_ossl="no";])
if test x"$od_have_ossl" = x"no"
then
if test x"$enable_shared" = x"yes"
then
AC_MSG_ERROR([Cannot build shared opendkim
against static openssl libraries.
Configure with --disable-shared
to get this working or obtain a
shared libssl library for
opendkim to use.])
fi
LIBCRYPTO_LIBS="$LIBCRYPTO_LIBS -ldl"
AC_SEARCH_LIBS([SSL_library_init], [ssl], ,
AC_MSG_ERROR([libssl not found]), [-ldl])
fi
AC_CHECK_DECL([EVP_PKEY_ED25519],
AC_DEFINE([HAVE_ED25519], 1,
[Define to 1 if your crypto library has ED25519 support]), ,
[
#include <sys/types.h>
#include <openssl/evp.h>])
AC_CHECK_DECL([SHA256_DIGEST_LENGTH],
AC_DEFINE([HAVE_SHA256], 1,
[Define to 1 if your crypto library has SHA256 support]),
AC_MSG_WARN([SHA256 is required for DKIM but is not
supported with your version of OpenSSL]),
[
#include <sys/types.h>
#include <openssl/sha.h>])
CFLAGS="$saved_CFLAGS"
CPPFLAGS="$saved_CPPFLAGS"
LDFLAGS="$saved_LDFLAGS"
LIBS="$saved_LIBS"
fi
AC_SUBST(LIBCRYPTO_CFLAGS)
AC_SUBST(LIBCRYPTO_CPPFLAGS)
AC_SUBST(LIBCRYPTO_LIBDIRS)
AC_SUBST(LIBCRYPTO_LIBS)
#
# libmilter
#
AC_MSG_CHECKING([for milter library and includes])
AC_ARG_WITH([milter],
AS_HELP_STRING([--with-milter],
[location of milter includes and library]),
[milterpath="$withval"], [milterpath="auto"])
if test x"$enable_filter" = x"no"
then
milterpath="no"
fi
if test "$milterpath" = "auto" -o "$milterpath" = "yes"
then
milterdirs="/usr/local /opt/local /usr"
for d in $milterdirs
do
if test -f $d/include/libmilter/mfapi.h
then
milterpath=$d
break
fi
done
fi
case "$milterpath" in
no)
if test x"$enable_filter" = x"yes"
then
AC_MSG_ERROR([milter is required])
fi
AC_MSG_RESULT(disabled)
;;
auto)
AC_MSG_ERROR([milter not found])
;;
*/*)
if ! test -f $milterpath/include/libmilter/mfapi.h
then
AC_MSG_ERROR([milter includes not found at $milterpath])
fi
AC_MSG_RESULT([$milterpath])
;;
*)
AC_MSG_ERROR([milter not found])
;;
esac
LIBMILTER_INCDIRS=""
LIBMILTER_LIBDIRS=""
LIBMILTER_LIBS=""
if test x"$milterpath" != x"no"
then
LIBMILTER_INCDIRS="-I$milterpath/include"
saved_CC="$CC"
saved_CFLAGS="$CFLAGS"
saved_CPPFLAGS="$CPPFLAGS"