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gnupg/acinclude.m4

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dnl macros to configure gnupg
dnl Copyright (C) 1998, 1999, 2000, 2001, 2003 Free Software Foundation, Inc.
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dnl
dnl This file is part of GnuPG.
dnl
dnl GnuPG is free software; you can redistribute it and/or modify
dnl it under the terms of the GNU General Public License as published by
dnl the Free Software Foundation; either version 2 of the License, or
dnl (at your option) any later version.
dnl
dnl GnuPG is distributed in the hope that it will be useful,
dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
dnl GNU General Public License for more details.
dnl
dnl You should have received a copy of the GNU General Public License
dnl along with this program; if not, write to the Free Software
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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dnl
AC_DEFUN(GNUPG_CHECK_TYPEDEF,
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[ AC_MSG_CHECKING(for $1 typedef)
AC_CACHE_VAL(gnupg_cv_typedef_$1,
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[AC_TRY_COMPILE([#define _GNU_SOURCE 1
#include <stdlib.h>
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#include <sys/types.h>], [
#undef $1
int a = sizeof($1);
], gnupg_cv_typedef_$1=yes, gnupg_cv_typedef_$1=no )])
AC_MSG_RESULT($gnupg_cv_typedef_$1)
if test "$gnupg_cv_typedef_$1" = yes; then
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AC_DEFINE($2,1,[Defined if a `]$1[' is typedef'd])
fi
])
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dnl GNUPG_CHECK_GNUMAKE
dnl
AC_DEFUN(GNUPG_CHECK_GNUMAKE,
[
if ${MAKE-make} --version 2>/dev/null | grep '^GNU ' >/dev/null 2>&1; then
:
else
AC_MSG_WARN([[
***
*** It seems that you are not using GNU make. Some make tools have serious
*** flaws and you may not be able to build this software at all. Before you
*** complain, please try GNU make: GNU make is easy to build and available
*** at all GNU archives. It is always available from ftp.gnu.org:/gnu/make.
***]])
fi
])
dnl GNUPG_CHECK_FAQPROG
dnl
AC_DEFUN(GNUPG_CHECK_FAQPROG,
[ AC_MSG_CHECKING(for faqprog.pl)
if faqprog.pl -V 2>/dev/null | grep '^faqprog.pl ' >/dev/null 2>&1; then
working_faqprog=yes
FAQPROG="faqprog.pl"
else
working_faqprog=no
FAQPROG=": "
fi
AC_MSG_RESULT($working_faqprog)
AC_SUBST(FAQPROG)
AM_CONDITIONAL(WORKING_FAQPROG, test "$working_faqprog" = "yes" )
dnl if test $working_faqprog = no; then
dnl AC_MSG_WARN([[
dnl ***
dnl *** It seems that the faqprog.pl program is not installed;
dnl *** however it is only needed if you want to change the FAQ.
dnl *** (faqprog.pl should be available at:
dnl *** ftp://ftp.gnupg.org/gcrypt/contrib/faqprog.pl )
dnl *** No need to worry about this warning.
dnl ***]])
dnl fi
])
dnl GNUPG_CHECK_DOCBOOK_TO_TEXI
dnl
AC_DEFUN(GNUPG_CHECK_DOCBOOK_TO_TEXI,
[
AC_CHECK_PROG(DOCBOOK_TO_TEXI, docbook2texi, yes, no)
AC_MSG_CHECKING(for sgml to texi tools)
working_sgmltotexi=no
if test "$ac_cv_prog_DOCBOOK_TO_TEXI" = yes; then
if sgml2xml -v /dev/null 2>&1 | grep 'SP version' >/dev/null 2>&1 ; then
working_sgmltotexi=yes
fi
fi
AC_MSG_RESULT($working_sgmltotexi)
AM_CONDITIONAL(HAVE_DOCBOOK_TO_TEXI, test "$working_sgmltotexi" = "yes" )
])
dnl GNUPG_CHECK_ENDIAN
dnl define either LITTLE_ENDIAN_HOST or BIG_ENDIAN_HOST
dnl
define(GNUPG_CHECK_ENDIAN,
[
tmp_assumed_endian=big
if test "$cross_compiling" = yes; then
case "$host_cpu" in
i@<:@345678@:>@* )
tmp_assumed_endian=little
;;
*)
;;
esac
AC_MSG_WARN(cross compiling; assuming $tmp_assumed_endian endianess)
fi
AC_MSG_CHECKING(endianess)
AC_CACHE_VAL(gnupg_cv_c_endian,
[ gnupg_cv_c_endian=unknown
# See if sys/param.h defines the BYTE_ORDER macro.
AC_TRY_COMPILE([#include <sys/types.h>
#include <sys/param.h>], [
#if !BYTE_ORDER || !BIG_ENDIAN || !LITTLE_ENDIAN
bogus endian macros
#endif], [# It does; now see whether it defined to BIG_ENDIAN or not.
AC_TRY_COMPILE([#include <sys/types.h>
#include <sys/param.h>], [
#if BYTE_ORDER != BIG_ENDIAN
not big endian
#endif], gnupg_cv_c_endian=big, gnupg_cv_c_endian=little)])
if test "$gnupg_cv_c_endian" = unknown; then
AC_TRY_RUN([main () {
/* Are we little or big endian? From Harbison&Steele. */
union
{
long l;
char c[sizeof (long)];
} u;
u.l = 1;
exit (u.c[sizeof (long) - 1] == 1);
}],
gnupg_cv_c_endian=little,
gnupg_cv_c_endian=big,
gnupg_cv_c_endian=$tmp_assumed_endian
)
fi
])
AC_MSG_RESULT([$gnupg_cv_c_endian])
if test "$gnupg_cv_c_endian" = little; then
AC_DEFINE(LITTLE_ENDIAN_HOST,1,
[Defined if the host has little endian byte ordering])
else
AC_DEFINE(BIG_ENDIAN_HOST,1,
[Defined if the host has big endian byte ordering])
fi
])
# Check for the getsockopt SO_PEERCRED
AC_DEFUN(GNUPG_SYS_SO_PEERCRED,
[ AC_MSG_CHECKING(for SO_PEERCRED)
AC_CACHE_VAL(gnupg_cv_sys_so_peercred,
[AC_TRY_COMPILE([#include <sys/socket.h>],
[struct ucred cr;
int cl = sizeof cr;
getsockopt (1, SOL_SOCKET, SO_PEERCRED, &cr, &cl);],
gnupg_cv_sys_so_peercred=yes,
gnupg_cv_sys_so_peercred=no)
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])
AC_MSG_RESULT($gnupg_cv_sys_so_peercred)
if test $gnupg_cv_sys_so_peercred = yes; then
AC_DEFINE(HAVE_SO_PEERCRED, 1,
[Defined if SO_PEERCRED is supported (Linux)])
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fi
])
# GNUPG_BUILD_PROGRAM(NAME,DEFAULT)
# Add a --enable-NAME option to configure an set the
# shell variable build_NAME either to "yes" or "no". DEFAULT must
# either be "yes" or "no" and decided on the default value for
# build_NAME and whether --enable-NAME or --disable-NAME is shown with
# ./configure --help
AC_DEFUN(GNUPG_BUILD_PROGRAM,
[build_$1=$2
m4_if([$2],[yes],[
AC_ARG_ENABLE([$1], AC_HELP_STRING([--disable-$1],
[do not build the $1 program]),
build_$1=$enableval, build_$1=$2)
],[
AC_ARG_ENABLE([$1], AC_HELP_STRING([--enable-$1],
[build the $1 program]),
build_$1=$enableval, build_$1=$2)
])
case "$build_$1" in
no|yes)
;;
*)
AC_MSG_ERROR([only yes or no allowed for feature --enable-$1])
;;
esac
])
# GNUPG_PTH_VERSION_CHECK(REQUIRED)
#
# If the version is sufficient, HAVE_PTH will be set to yes.
#
# Taken form the m4 macros which come with Pth
AC_DEFUN(GNUPG_PTH_VERSION_CHECK,
[
_pth_version=`$PTH_CONFIG --version | awk 'NR==1 {print [$]3}'`
_req_version="ifelse([$1],,1.2.0,$1)"
for _var in _pth_version _req_version; do
eval "_val=\"\$${_var}\""
_major=`echo $_val | sed 's/\([[0-9]]*\)\.\([[0-9]]*\)\([[ab.]]\)\([[0-9]]*\)/\1/'`
_minor=`echo $_val | sed 's/\([[0-9]]*\)\.\([[0-9]]*\)\([[ab.]]\)\([[0-9]]*\)/\2/'`
_rtype=`echo $_val | sed 's/\([[0-9]]*\)\.\([[0-9]]*\)\([[ab.]]\)\([[0-9]]*\)/\3/'`
_micro=`echo $_val | sed 's/\([[0-9]]*\)\.\([[0-9]]*\)\([[ab.]]\)\([[0-9]]*\)/\4/'`
case $_rtype in
"a" ) _rtype=0 ;;
"b" ) _rtype=1 ;;
"." ) _rtype=2 ;;
esac
_hex=`echo dummy | awk '{ printf("%d%02d%1d%02d", major, minor, rtype, micro); }' \
"major=$_major" "minor=$_minor" "rtype=$_rtype" "micro=$_micro"`
eval "${_var}_hex=\"\$_hex\""
done
have_pth=no
if test ".$_pth_version_hex" != .; then
if test ".$_req_version_hex" != .; then
if test $_pth_version_hex -ge $_req_version_hex; then
have_pth=yes
fi
fi
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fi
if test $have_pth = no; then
AC_MSG_WARN([[
***
*** Found Pth version $_pth_version, but require at least
*** version $_req_version. Please upgrade Pth first.
***]])
fi
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])
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# Check whether mlock is broken (hpux 10.20 raises a SIGBUS if mlock
# is not called from uid 0 (not tested whether uid 0 works)
# For DECs Tru64 we have also to check whether mlock is in librt
# mlock is there a macro using memlk()
dnl GNUPG_CHECK_MLOCK
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dnl
define(GNUPG_CHECK_MLOCK,
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[ AC_CHECK_FUNCS(mlock)
if test "$ac_cv_func_mlock" = "no"; then
AC_CHECK_HEADERS(sys/mman.h)
if test "$ac_cv_header_sys_mman_h" = "yes"; then
# Add librt to LIBS:
AC_CHECK_LIB(rt, memlk)
AC_CACHE_CHECK([whether mlock is in sys/mman.h],
gnupg_cv_mlock_is_in_sys_mman,
[AC_TRY_LINK([
#include <assert.h>
#ifdef HAVE_SYS_MMAN_H
#include <sys/mman.h>
#endif
], [
int i;
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/* glibc defines this for functions which it implements
* to always fail with ENOSYS. Some functions are actually
* named something starting with __ and the normal name
* is an alias. */
#if defined (__stub_mlock) || defined (__stub___mlock)
choke me
#else
mlock(&i, 4);
#endif
; return 0;
],
gnupg_cv_mlock_is_in_sys_mman=yes,
gnupg_cv_mlock_is_in_sys_mman=no)])
if test "$gnupg_cv_mlock_is_in_sys_mman" = "yes"; then
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AC_DEFINE(HAVE_MLOCK,1,
[Defined if the system supports an mlock() call])
fi
fi
fi
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if test "$ac_cv_func_mlock" = "yes"; then
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AC_MSG_CHECKING(whether mlock is broken)
AC_CACHE_VAL(gnupg_cv_have_broken_mlock,
AC_TRY_RUN([
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#include <stdlib.h>
#include <unistd.h>
#include <errno.h>
#include <sys/mman.h>
#include <sys/types.h>
#include <fcntl.h>
int main()
{
char *pool;
int err;
long int pgsize = getpagesize();
pool = malloc( 4096 + pgsize );
if( !pool )
return 2;
pool += (pgsize - ((long int)pool % pgsize));
err = mlock( pool, 4096 );
if( !err || errno == EPERM )
return 0; /* okay */
return 1; /* hmmm */
}
],
gnupg_cv_have_broken_mlock="no",
gnupg_cv_have_broken_mlock="yes",
gnupg_cv_have_broken_mlock="assume-no"
)
)
if test "$gnupg_cv_have_broken_mlock" = "yes"; then
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AC_DEFINE(HAVE_BROKEN_MLOCK,1,
[Defined if the mlock() call does not work])
AC_MSG_RESULT(yes)
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AC_CHECK_FUNCS(plock)
else
if test "$gnupg_cv_have_broken_mlock" = "no"; then
AC_MSG_RESULT(no)
else
AC_MSG_RESULT(assuming no)
fi
fi
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fi
])
dnl Stolen from gcc
dnl Define MKDIR_TAKES_ONE_ARG if mkdir accepts only one argument instead
dnl of the usual 2.
AC_DEFUN(GNUPG_FUNC_MKDIR_TAKES_ONE_ARG,
[AC_CHECK_HEADERS(sys/stat.h unistd.h direct.h)
AC_CACHE_CHECK([if mkdir takes one argument], gnupg_cv_mkdir_takes_one_arg,
[AC_TRY_COMPILE([
#include <sys/types.h>
#ifdef HAVE_SYS_STAT_H
# include <sys/stat.h>
#endif
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#ifdef HAVE_DIRECT_H
# include <direct.h>
#endif], [mkdir ("foo", 0);],
gnupg_cv_mkdir_takes_one_arg=no, gnupg_cv_mkdir_takes_one_arg=yes)])
if test $gnupg_cv_mkdir_takes_one_arg = yes ; then
AC_DEFINE(MKDIR_TAKES_ONE_ARG,1,
[Defined if mkdir() does not take permission flags])
fi
])
dnl AM_PATH_OPENSC([MINIMUM-VERSION,
dnl [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND ]]])
dnl Test for OpenSC and define OPENSC_CFLAGS and OPENSC_LIBS
dnl
AC_DEFUN(AM_PATH_OPENSC,
[ AC_ARG_WITH(opensc-prefix,
AC_HELP_STRING([--with-opensc-prefix=PFX],
[prefix where OpenSC is installed (optional)]),
opensc_config_prefix="$withval", opensc_config_prefix="")
if test x$opensc_config_prefix != x ; then
opensc_config_args="$opensc_config_args --prefix=$opensc_config_prefix"
if test x${OPENSC_CONFIG+set} != xset ; then
OPENSC_CONFIG=$opensc_config_prefix/bin/opensc-config
fi
fi
AC_PATH_PROG(OPENSC_CONFIG, opensc-config, no)
min_opensc_version=ifelse([$1], ,0.7.0,$1)
AC_MSG_CHECKING(for OpenSC - version >= $min_opensc_version)
ok=no
if test "$OPENSC_CONFIG" != "no" ; then
req_major=`echo $min_opensc_version | \
sed 's/\([[0-9]]*\)\.\([[0-9]]*\)\.\([[0-9]]*\)/\1/'`
req_minor=`echo $min_opensc_version | \
sed 's/\([[0-9]]*\)\.\([[0-9]]*\)\.\([[0-9]]*\)/\2/'`
req_micro=`echo $min_opensc_version | \
sed 's/\([[0-9]]*\)\.\([[0-9]]*\)\.\([[0-9]]*\)/\3/'`
opensc_config_version=`$OPENSC_CONFIG $opensc_config_args --version 2>/dev/null || echo 0.0.0`
major=`echo $opensc_config_version | \
sed 's/\([[0-9]]*\)\.\([[0-9]]*\)\.\([[0-9]]*\).*/\1/'`
minor=`echo $opensc_config_version | \
sed 's/\([[0-9]]*\)\.\([[0-9]]*\)\.\([[0-9]]*\).*/\2/'`
micro=`echo $opensc_config_version | \
sed 's/\([[0-9]]*\)\.\([[0-9]]*\)\.\([[0-9]]*\).*/\3/'`
if test "$major" -gt "$req_major"; then
ok=yes
else
if test "$major" -eq "$req_major"; then
if test "$minor" -gt "$req_minor"; then
ok=yes
else
if test "$minor" -eq "$req_minor"; then
if test "$micro" -ge "$req_micro"; then
ok=yes
fi
fi
fi
fi
fi
fi
if test $ok = yes; then
OPENSC_CFLAGS=`$OPENSC_CONFIG $opensc_config_args --cflags`
OPENSC_LIBS=`$OPENSC_CONFIG $opensc_config_args --libs`
OPENSC_LIBS="$OPENSC_LIBS -lpcsclite -lpthread"
AC_MSG_RESULT(yes)
ifelse([$2], , :, [$2])
else
OPENSC_CFLAGS=""
OPENSC_LIBS=""
AC_MSG_RESULT(no)
ifelse([$3], , :, [$3])
fi
AC_SUBST(OPENSC_CFLAGS)
AC_SUBST(OPENSC_LIBS)
])