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dnl macros to configure gnupg
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dnl Copyright (C) 1998, 1999, 2000, 2001, 2003 Free Software Foundation, Inc.
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dnl This file is part of GnuPG.
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dnl GnuPG is free software; you can redistribute it and/or modify
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dnl it under the terms of the GNU General Public License as published by
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dnl the Free Software Foundation; either version 2 of the License, or
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dnl (at your option) any later version.
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dnl GnuPG is distributed in the hope that it will be useful,
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dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
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dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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dnl GNU General Public License for more details.
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dnl You should have received a copy of the GNU General Public License
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dnl along with this program; if not, write to the Free Software
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dnl Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
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dnl GNUPG_CHECK_TYPEDEF(TYPE, HAVE_NAME)
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dnl Check whether a typedef exists and create a #define $2 if it exists
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AC_DEFUN([GNUPG_CHECK_TYPEDEF],
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[ AC_MSG_CHECKING(for $1 typedef)
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AC_CACHE_VAL(gnupg_cv_typedef_$1,
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[AC_TRY_COMPILE([#define _GNU_SOURCE 1
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#include <sys/types.h>], [
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], gnupg_cv_typedef_$1=yes, gnupg_cv_typedef_$1=no )])
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AC_MSG_RESULT($gnupg_cv_typedef_$1)
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if test "$gnupg_cv_typedef_$1" = yes; then
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AC_DEFINE($2,1,[Defined if a `]$1[' is typedef'd])
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dnl GNUPG_CHECK_GNUMAKE
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AC_DEFUN([GNUPG_CHECK_GNUMAKE],
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if ${MAKE-make} --version 2>/dev/null | grep '^GNU ' >/dev/null 2>&1; then
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*** It seems that you are not using GNU make. Some make tools have serious
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*** flaws and you may not be able to build this software at all. Before you
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*** complain, please try GNU make: GNU make is easy to build and available
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*** at all GNU archives. It is always available from ftp.gnu.org:/gnu/make.
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dnl GNUPG_CHECK_FAQPROG
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AC_DEFUN([GNUPG_CHECK_FAQPROG],
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[ AC_MSG_CHECKING(for faqprog.pl)
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if faqprog.pl -V 2>/dev/null | grep '^faqprog.pl ' >/dev/null 2>&1; then
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AC_MSG_RESULT($working_faqprog)
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AM_CONDITIONAL(WORKING_FAQPROG, test "$working_faqprog" = "yes" )
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dnl if test $working_faqprog = no; then
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dnl *** It seems that the faqprog.pl program is not installed;
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dnl *** however it is only needed if you want to change the FAQ.
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dnl *** (faqprog.pl should be available at:
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dnl *** ftp://ftp.gnupg.org/gcrypt/contrib/faqprog.pl )
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dnl *** No need to worry about this warning.
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dnl GNUPG_CHECK_DOCBOOK_TO_TEXI
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AC_DEFUN([GNUPG_CHECK_DOCBOOK_TO_TEXI],
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AC_CHECK_PROG(DOCBOOK_TO_TEXI, docbook2texi, yes, no)
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AC_MSG_CHECKING(for sgml to texi tools)
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if test "$ac_cv_prog_DOCBOOK_TO_TEXI" = yes; then
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if sgml2xml -v /dev/null 2>&1 | grep 'SP version' >/dev/null 2>&1 ; then
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working_sgmltotexi=yes
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AC_MSG_RESULT($working_sgmltotexi)
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AM_CONDITIONAL(HAVE_DOCBOOK_TO_TEXI, test "$working_sgmltotexi" = "yes" )
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dnl GNUPG_CHECK_ENDIAN
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dnl define either LITTLE_ENDIAN_HOST or BIG_ENDIAN_HOST
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AC_DEFUN([GNUPG_CHECK_ENDIAN],
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tmp_assumed_endian=big
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if test "$cross_compiling" = yes; then
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tmp_assumed_endian=little
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AC_MSG_WARN(cross compiling; assuming $tmp_assumed_endian endianess)
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AC_MSG_CHECKING(endianess)
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AC_CACHE_VAL(gnupg_cv_c_endian,
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[ gnupg_cv_c_endian=unknown
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# See if sys/param.h defines the BYTE_ORDER macro.
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AC_TRY_COMPILE([#include <sys/types.h>
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#include <sys/param.h>], [
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#if !BYTE_ORDER || !BIG_ENDIAN || !LITTLE_ENDIAN
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#endif], [# It does; now see whether it defined to BIG_ENDIAN or not.
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AC_TRY_COMPILE([#include <sys/types.h>
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#include <sys/param.h>], [
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#if BYTE_ORDER != BIG_ENDIAN
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#endif], gnupg_cv_c_endian=big, gnupg_cv_c_endian=little)])
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if test "$gnupg_cv_c_endian" = unknown; then
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AC_TRY_RUN([main () {
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/* Are we little or big endian? From Harbison&Steele. */
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char c[sizeof (long)];
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exit (u.c[sizeof (long) - 1] == 1);
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gnupg_cv_c_endian=little,
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gnupg_cv_c_endian=big,
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gnupg_cv_c_endian=$tmp_assumed_endian
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AC_MSG_RESULT([$gnupg_cv_c_endian])
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if test "$gnupg_cv_c_endian" = little; then
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AC_DEFINE(LITTLE_ENDIAN_HOST,1,
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[Defined if the host has little endian byte ordering])
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AC_DEFINE(BIG_ENDIAN_HOST,1,
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[Defined if the host has big endian byte ordering])
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# Check for the getsockopt SO_PEERCRED
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AC_DEFUN([GNUPG_SYS_SO_PEERCRED],
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[ AC_MSG_CHECKING(for SO_PEERCRED)
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AC_CACHE_VAL(gnupg_cv_sys_so_peercred,
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[AC_TRY_COMPILE([#include <sys/socket.h>],
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getsockopt (1, SOL_SOCKET, SO_PEERCRED, &cr, &cl);],
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gnupg_cv_sys_so_peercred=yes,
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gnupg_cv_sys_so_peercred=no)
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AC_MSG_RESULT($gnupg_cv_sys_so_peercred)
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if test $gnupg_cv_sys_so_peercred = yes; then
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AC_DEFINE(HAVE_SO_PEERCRED, 1,
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[Defined if SO_PEERCRED is supported (Linux)])
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# GNUPG_BUILD_PROGRAM(NAME,DEFAULT)
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# Add a --enable-NAME option to configure an set the
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# shell variable build_NAME either to "yes" or "no". DEFAULT must
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# either be "yes" or "no" and decided on the default value for
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# build_NAME and whether --enable-NAME or --disable-NAME is shown with
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AC_DEFUN([GNUPG_BUILD_PROGRAM],
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AC_ARG_ENABLE([$1], AC_HELP_STRING([--disable-$1],
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[do not build the $1 program]),
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build_$1=$enableval, build_$1=$2)
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AC_ARG_ENABLE([$1], AC_HELP_STRING([--enable-$1],
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[build the $1 program]),
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build_$1=$enableval, build_$1=$2)
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AC_MSG_ERROR([only yes or no allowed for feature --enable-$1])
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# GNUPG_PTH_VERSION_CHECK(REQUIRED)
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# If the version is sufficient, HAVE_PTH will be set to yes.
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# Taken form the m4 macros which come with Pth
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AC_DEFUN([GNUPG_PTH_VERSION_CHECK],
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_pth_version=`$PTH_CONFIG --version | awk 'NR==1 {print [$]3}'`
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_req_version="ifelse([$1],,1.2.0,$1)"
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AC_MSG_CHECKING(for PTH - version >= $_req_version)
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for _var in _pth_version _req_version; do
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eval "_val=\"\$${_var}\""
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_major=`echo $_val | sed 's/\([[0-9]]*\)\.\([[0-9]]*\)\([[ab.]]\)\([[0-9]]*\)/\1/'`
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_minor=`echo $_val | sed 's/\([[0-9]]*\)\.\([[0-9]]*\)\([[ab.]]\)\([[0-9]]*\)/\2/'`
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_rtype=`echo $_val | sed 's/\([[0-9]]*\)\.\([[0-9]]*\)\([[ab.]]\)\([[0-9]]*\)/\3/'`
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_micro=`echo $_val | sed 's/\([[0-9]]*\)\.\([[0-9]]*\)\([[ab.]]\)\([[0-9]]*\)/\4/'`
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_hex=`echo dummy | awk '{ printf("%d%02d%1d%02d", major, minor, rtype, micro); }' \
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"major=$_major" "minor=$_minor" "rtype=$_rtype" "micro=$_micro"`
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eval "${_var}_hex=\"\$_hex\""
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if test ".$_pth_version_hex" != .; then
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if test ".$_req_version_hex" != .; then
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if test $_pth_version_hex -ge $_req_version_hex; then
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if test $have_pth = yes; then
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AC_MSG_CHECKING([whether PTH installation is sane])
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AC_CACHE_VAL(gnupg_cv_pth_is_sane,[
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_gnupg_pth_save_cflags=$CFLAGS
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_gnupg_pth_save_ldflags=$LDFLAGS
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_gnupg_pth_save_libs=$LIBS
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CFLAGS="$CFLAGS `$PTH_CONFIG --ldflags`"
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LDFLAGS="$LDFLAGS `$PTH_CONFIG --ldflags`"
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LIBS="$LIBS `$PTH_CONFIG --libs`"
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AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <pth.h>
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gnupg_cv_pth_is_sane=yes,
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gnupg_cv_pth_is_sane=no)
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CFLAGS=$_gnupg_pth_save_cflags
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LDFLAGS=$_gnupg_pth_save_ldflags
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LIBS=$_gnupg_pth_save_libs
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if test $gnupg_cv_pth_is_sane != yes; then
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AC_MSG_RESULT($gnupg_cv_pth_is_sane)
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# Check whether mlock is broken (hpux 10.20 raises a SIGBUS if mlock
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# is not called from uid 0 (not tested whether uid 0 works)
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# For DECs Tru64 we have also to check whether mlock is in librt
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# mlock is there a macro using memlk()
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dnl GNUPG_CHECK_MLOCK
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AC_DEFUN([GNUPG_CHECK_MLOCK],
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[ AC_CHECK_FUNCS(mlock)
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if test "$ac_cv_func_mlock" = "no"; then
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AC_CHECK_HEADERS(sys/mman.h)
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if test "$ac_cv_header_sys_mman_h" = "yes"; then
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AC_CHECK_LIB(rt, memlk)
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AC_CACHE_CHECK([whether mlock is in sys/mman.h],
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gnupg_cv_mlock_is_in_sys_mman,
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#ifdef HAVE_SYS_MMAN_H
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#include <sys/mman.h>
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/* glibc defines this for functions which it implements
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* to always fail with ENOSYS. Some functions are actually
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* named something starting with __ and the normal name
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#if defined (__stub_mlock) || defined (__stub___mlock)
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gnupg_cv_mlock_is_in_sys_mman=yes,
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gnupg_cv_mlock_is_in_sys_mman=no)])
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if test "$gnupg_cv_mlock_is_in_sys_mman" = "yes"; then
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AC_DEFINE(HAVE_MLOCK,1,
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[Defined if the system supports an mlock() call])
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if test "$ac_cv_func_mlock" = "yes"; then
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AC_MSG_CHECKING(whether mlock is broken)
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AC_CACHE_VAL(gnupg_cv_have_broken_mlock,
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#include <sys/mman.h>
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#include <sys/types.h>
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long int pgsize = getpagesize();
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pool = malloc( 4096 + pgsize );
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pool += (pgsize - ((long int)pool % pgsize));
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err = mlock( pool, 4096 );
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if( !err || errno == EPERM )
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gnupg_cv_have_broken_mlock="no",
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gnupg_cv_have_broken_mlock="yes",
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gnupg_cv_have_broken_mlock="assume-no"
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if test "$gnupg_cv_have_broken_mlock" = "yes"; then
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AC_DEFINE(HAVE_BROKEN_MLOCK,1,
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[Defined if the mlock() call does not work])
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AC_CHECK_FUNCS(plock)
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if test "$gnupg_cv_have_broken_mlock" = "no"; then
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AC_MSG_RESULT(assuming no)
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dnl Define MKDIR_TAKES_ONE_ARG if mkdir accepts only one argument instead
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AC_DEFUN([GNUPG_FUNC_MKDIR_TAKES_ONE_ARG],
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[AC_CHECK_HEADERS(sys/stat.h unistd.h direct.h)
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AC_CACHE_CHECK([if mkdir takes one argument], gnupg_cv_mkdir_takes_one_arg,
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#include <sys/types.h>
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#ifdef HAVE_SYS_STAT_H
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# include <sys/stat.h>
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#endif], [mkdir ("foo", 0);],
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gnupg_cv_mkdir_takes_one_arg=no, gnupg_cv_mkdir_takes_one_arg=yes)])
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if test $gnupg_cv_mkdir_takes_one_arg = yes ; then
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AC_DEFINE(MKDIR_TAKES_ONE_ARG,1,
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[Defined if mkdir() does not take permission flags])
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dnl AM_PATH_OPENSC([MINIMUM-VERSION,
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dnl [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND ]]])
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dnl Test for OpenSC and define OPENSC_CFLAGS and OPENSC_LIBS
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AC_DEFUN([AM_PATH_OPENSC],
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[ AC_ARG_WITH(opensc-prefix,
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AC_HELP_STRING([--with-opensc-prefix=PFX],
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[prefix where OpenSC is installed (optional)]),
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opensc_config_prefix="$withval", opensc_config_prefix="")
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if test x$opensc_config_prefix != x ; then
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opensc_config_args="$opensc_config_args --prefix=$opensc_config_prefix"
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if test x${OPENSC_CONFIG+set} != xset ; then
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OPENSC_CONFIG=$opensc_config_prefix/bin/opensc-config
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AC_PATH_PROG(OPENSC_CONFIG, opensc-config, no)
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min_opensc_version=ifelse([$1], ,0.7.0,$1)
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AC_MSG_CHECKING(for OpenSC - version >= $min_opensc_version)
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if test "$OPENSC_CONFIG" != "no" ; then
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req_major=`echo $min_opensc_version | \
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sed 's/\([[0-9]]*\)\.\([[0-9]]*\)\.\([[0-9]]*\)/\1/'`
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req_minor=`echo $min_opensc_version | \
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sed 's/\([[0-9]]*\)\.\([[0-9]]*\)\.\([[0-9]]*\)/\2/'`
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req_micro=`echo $min_opensc_version | \
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sed 's/\([[0-9]]*\)\.\([[0-9]]*\)\.\([[0-9]]*\)/\3/'`
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opensc_config_version=`$OPENSC_CONFIG $opensc_config_args --version 2>/dev/null || echo 0.0.0`
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major=`echo $opensc_config_version | \
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sed 's/\([[0-9]]*\)\.\([[0-9]]*\)\.\([[0-9]]*\).*/\1/'`
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minor=`echo $opensc_config_version | \
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sed 's/\([[0-9]]*\)\.\([[0-9]]*\)\.\([[0-9]]*\).*/\2/'`
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micro=`echo $opensc_config_version | \
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sed 's/\([[0-9]]*\)\.\([[0-9]]*\)\.\([[0-9]]*\).*/\3/'`
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if test "$major" -gt "$req_major"; then
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if test "$major" -eq "$req_major"; then
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if test "$minor" -gt "$req_minor"; then
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if test "$minor" -eq "$req_minor"; then
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if test "$micro" -ge "$req_micro"; then
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if test $ok = yes; then
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OPENSC_CFLAGS=`$OPENSC_CONFIG $opensc_config_args --cflags`
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OPENSC_LIBS=`$OPENSC_CONFIG $opensc_config_args --libs`
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OPENSC_LIBS="$OPENSC_LIBS -lpcsclite -lpthread"
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ifelse([$2], , :, [$2])
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ifelse([$3], , :, [$3])
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AC_SUBST(OPENSC_CFLAGS)
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AC_SUBST(OPENSC_LIBS)
added
removed
acinclude.m4
