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d8ee0d79a7
* acinclude.m4 (GNUPG_BUILD_PROGRAM): Allow for dash in options. Signed-off-by: Werner Koch <wk@gnupg.org>
352 lines
11 KiB
Plaintext
352 lines
11 KiB
Plaintext
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
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dnl This file is part of GnuPG.
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dnl
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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 3 of the License, or
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dnl (at your option) any later version.
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dnl
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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
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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, see <http://www.gnu.org/licenses/>.
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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
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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 <stdlib.h>
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#include <sys/types.h>], [
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#undef $1
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int a = sizeof($1);
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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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fi
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])
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dnl GNUPG_CHECK_GNUMAKE
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dnl
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AC_DEFUN([GNUPG_CHECK_GNUMAKE],
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[
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if ${MAKE-make} --version 2>/dev/null | grep '^GNU ' >/dev/null 2>&1; then
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:
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else
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AC_MSG_WARN([[
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***
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*** It seems that you are not using GNU make. Some make tools have serious
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*** flaws and you may not be able to build this software at all. Before you
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*** complain, please try GNU make: GNU make is easy to build and available
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*** at all GNU archives. It is always available from ftp.gnu.org:/gnu/make.
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***]])
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fi
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])
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dnl GNUPG_CHECK_FAQPROG
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dnl
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AC_DEFUN([GNUPG_CHECK_FAQPROG],
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[ AC_MSG_CHECKING(for faqprog.pl)
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if faqprog.pl -V 2>/dev/null | grep '^faqprog.pl ' >/dev/null 2>&1; then
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working_faqprog=yes
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FAQPROG="faqprog.pl"
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else
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working_faqprog=no
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FAQPROG=": "
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fi
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AC_MSG_RESULT($working_faqprog)
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AC_SUBST(FAQPROG)
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AM_CONDITIONAL(WORKING_FAQPROG, test "$working_faqprog" = "yes" )
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dnl if test $working_faqprog = no; then
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dnl AC_MSG_WARN([[
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dnl ***
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dnl *** It seems that the faqprog.pl program is not installed;
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dnl *** however it is only needed if you want to change the FAQ.
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dnl *** (faqprog.pl should be available at:
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dnl *** ftp://ftp.gnupg.org/gcrypt/contrib/faqprog.pl )
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dnl *** No need to worry about this warning.
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dnl ***]])
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dnl fi
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])
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dnl GNUPG_CHECK_DOCBOOK_TO_TEXI
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dnl
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AC_DEFUN([GNUPG_CHECK_DOCBOOK_TO_TEXI],
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[
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AC_CHECK_PROG(DOCBOOK_TO_TEXI, docbook2texi, yes, no)
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AC_MSG_CHECKING(for sgml to texi tools)
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working_sgmltotexi=no
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if test "$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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fi
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fi
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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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])
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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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dnl
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AC_DEFUN([GNUPG_CHECK_ENDIAN],
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[
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tmp_assumed_endian=big
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tmp_assume_warn=""
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if test "$cross_compiling" = yes; then
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case "$host_cpu" in
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i@<:@345678@:>@* )
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tmp_assumed_endian=little
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;;
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*)
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;;
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esac
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fi
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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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bogus endian macros
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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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not big endian
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#endif], gnupg_cv_c_endian=big, gnupg_cv_c_endian=little)])
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if test "$gnupg_cv_c_endian" = unknown; then
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AC_TRY_RUN([main () {
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/* Are we little or big endian? From Harbison&Steele. */
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union
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{
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long l;
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char c[sizeof (long)];
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} u;
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u.l = 1;
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exit (u.c[sizeof (long) - 1] == 1);
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}],
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gnupg_cv_c_endian=little,
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gnupg_cv_c_endian=big,
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gnupg_cv_c_endian=$tmp_assumed_endian
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tmp_assumed_warn=" (assumed)"
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)
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fi
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])
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AC_MSG_RESULT([${gnupg_cv_c_endian}${tmp_assumed_warn}])
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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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else
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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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fi
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])
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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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# ./configure --help
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AC_DEFUN([GNUPG_BUILD_PROGRAM],
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[m4_define([my_build], [m4_bpatsubst(build_$1, [[^a-zA-Z0-9_]], [_])])
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my_build=$2
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m4_if([$2],[yes],[
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AC_ARG_ENABLE([$1], AC_HELP_STRING([--disable-$1],
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[do not build the $1 program]),
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my_build=$enableval, my_build=$2)
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],[
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AC_ARG_ENABLE([$1], AC_HELP_STRING([--enable-$1],
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[build the $1 program]),
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my_build=$enableval, my_build=$2)
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])
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case "$my_build" in
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no|yes)
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;;
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*)
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AC_MSG_ERROR([only yes or no allowed for feature --enable-$1])
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;;
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esac
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m4_undefine([my_build])
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])
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# GNUPG_DISABLE_GPG_ALGO(NAME,DESCRIPTION)
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#
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# Add a --disable-gpg-NAME option and the corresponding ac_define
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# GPG_USE_<NAME>.
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AC_DEFUN([GNUPG_GPG_DISABLE_ALGO],
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[AC_MSG_CHECKING([whether to enable the $2 for gpg])
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AC_ARG_ENABLE([gpg-$1], AC_HELP_STRING([--disable-gpg-$1],
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[disable the $2 algorithm in gpg]),
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, enableval=yes)
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AC_MSG_RESULT($enableval)
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if test x"$enableval" = xyes ; then
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AC_DEFINE(GPG_USE_[]m4_toupper($1), 1, [Define to support the $2])
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fi
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])
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# Check whether mlock is broken (hpux 10.20 raises a SIGBUS if mlock
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# is not called from uid 0 (not tested whether uid 0 works)
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# For DECs Tru64 we have also to check whether mlock is in librt
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# mlock is there a macro using memlk()
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dnl GNUPG_CHECK_MLOCK
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dnl
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AC_DEFUN([GNUPG_CHECK_MLOCK],
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[ AC_CHECK_FUNCS(mlock)
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if test "$ac_cv_func_mlock" = "no"; then
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AC_CHECK_HEADERS(sys/mman.h)
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if test "$ac_cv_header_sys_mman_h" = "yes"; then
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# Add librt to LIBS:
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AC_CHECK_LIB(rt, memlk)
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AC_CACHE_CHECK([whether mlock is in sys/mman.h],
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gnupg_cv_mlock_is_in_sys_mman,
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[AC_TRY_LINK([
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#include <assert.h>
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#ifdef HAVE_SYS_MMAN_H
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#include <sys/mman.h>
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#endif
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], [
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int i;
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/* glibc defines this for functions which it implements
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* to always fail with ENOSYS. Some functions are actually
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* named something starting with __ and the normal name
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* is an alias. */
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#if defined (__stub_mlock) || defined (__stub___mlock)
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choke me
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#else
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mlock(&i, 4);
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#endif
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; return 0;
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],
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gnupg_cv_mlock_is_in_sys_mman=yes,
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gnupg_cv_mlock_is_in_sys_mman=no)])
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if test "$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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fi
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fi
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fi
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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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AC_TRY_RUN([
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#include <stdlib.h>
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#include <unistd.h>
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#include <errno.h>
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#include <sys/mman.h>
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#include <sys/types.h>
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#include <fcntl.h>
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int main()
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{
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char *pool;
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int err;
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long int pgsize = getpagesize();
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pool = malloc( 4096 + pgsize );
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if( !pool )
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return 2;
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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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return 0; /* okay */
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return 1; /* hmmm */
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}
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],
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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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)
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)
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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_MSG_RESULT(yes)
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AC_CHECK_FUNCS(plock)
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else
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if test "$gnupg_cv_have_broken_mlock" = "no"; then
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AC_MSG_RESULT(no)
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else
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AC_MSG_RESULT(assuming no)
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fi
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fi
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fi
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])
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dnl Stolen from gcc
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dnl Define MKDIR_TAKES_ONE_ARG if mkdir accepts only one argument instead
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dnl of the usual 2.
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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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[AC_TRY_COMPILE([
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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
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#ifdef HAVE_UNISTD_H
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# include <unistd.h>
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#endif
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#ifdef HAVE_DIRECT_H
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# include <direct.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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fi
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])
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# GNUPG_TIME_T_UNSIGNED
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# Check whether time_t is unsigned
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#
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AC_DEFUN([GNUPG_TIME_T_UNSIGNED],
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[ AC_CACHE_CHECK(whether time_t is unsigned, gnupg_cv_time_t_unsigned,
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[AC_REQUIRE([AC_HEADER_TIME])dnl
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AC_COMPILE_IFELSE([AC_LANG_BOOL_COMPILE_TRY(
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[AC_INCLUDES_DEFAULT([])
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#if TIME_WITH_SYS_TIME
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# include <sys/time.h>
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# include <time.h>
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#else
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# if HAVE_SYS_TIME_H
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# include <sys/time.h>
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# else
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# include <time.h>
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# endif
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#endif
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],
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[((time_t)-1) < 0])],
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gnupg_cv_time_t_unsigned=no, gnupg_cv_time_t_unsigned=yes)])
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if test $gnupg_cv_time_t_unsigned = yes; then
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AC_DEFINE(HAVE_UNSIGNED_TIME_T,1,[Defined if time_t is an unsigned type])
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fi
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])# GNUPG_TIME_T_UNSIGNED
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