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dnl $Id: acinclude.m4,v 1.3 2003/01/20 05:44:48 lteo Exp $
dnl acinclude.m4: self-defined m4 macros.
dnl
dnl Copyright (c) 2003 Calyptix Security Corporation
dnl All rights reserved.
dnl
dnl Redistribution and use in source and binary forms, with or without
dnl modification, are permitted provided that the following conditions
dnl are met:
dnl 1. Redistributions of source code must retain the above copyright
dnl notice, this list of conditions and the following disclaimer.
dnl 2. Redistributions in binary form must reproduce the above
dnl copyright notice, this list of conditions and the following
dnl disclaimer in the documentation and/or other materials provided
dnl with the distribution.
dnl 3. Neither the name of Calyptix Security Corporation nor the
dnl names of its contributors may be used to endorse or promote
dnl products derived from this software without specific prior
dnl written permission.
dnl
dnl THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
dnl "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
dnl LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
dnl FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
dnl COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
dnl INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
dnl BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
dnl LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
dnl CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
dnl LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
dnl ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
dnl POSSIBILITY OF SUCH DAMAGE.
dnl
dnl -------------------------------------------------------------------
dnl Check endianness
AC_DEFUN(AC_CALYPTIX_ENDIAN_CHECK,
[AC_MSG_CHECKING(machine endianess)
cat > conftest.c << EOF
/* test endianity */
int main()
{
unsigned long *wp;
unsigned char str[[4]] = {'A', 'B', 'C', 'D'};
wp = (unsigned long *)str;
if (str[[0]] == (unsigned char)( *wp & 0xFF)) {
printf("L"); /* little endian */
} else {
printf("B"); /* big endian */
}
}
EOF
${CC-cc} -o conftest $CFLAGS $CPPFLAGS $LDFLAGS conftest.c $LIBS > /dev/null 2>&1
if test ! -x conftest ; then
dnl failed to compile for some reason
ac_cv_calyptix_endianess=unknown
else
./conftest > conftest.out
result=`cat conftest.out`
if test $result = "B"; then
ac_cv_calyptix_endianess=big
elif test $result = "L"; then
ac_cv_calyptix_endianess=little
else
ac_cv_calyptix_endianess=unknown
fi
fi
rm -f conftest* core core.conftest
AC_MSG_RESULT($ac_cv_calyptix_endianess)
if test $ac_cv_calyptix_endianess = little ; then
AC_DEFINE_UNQUOTED(LITTLE_ENDIAN, 1, [Little-endian])
fi
# if test $ac_cv_calyptix_endianess = big ; then
# # AC_DEFINE(LIBNET_BIG_ENDIAN)
# ENDIANESS="LIBNET_BIG_ENDIAN"
# # LIBNET_CONFIG_DEFINES="$LIBNET_CONFIG_DEFINES -DLIBNET_BIG_ENDIAN"
# CFLAGS=
# elif test $ac_cv_calyptix_endianess = lil ; then
# # AC_DEFINE(LIBNET_LIL_ENDIAN)
# ENDIANESS="LIBNET_LIL_ENDIAN"
# # LIBNET_CONFIG_DEFINES="$LIBNET_CONFIG_DEFINES -DLIBNET_LIL_ENDIAN"
# fi
])
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