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# aclocal.m4 - package-specific macros for autoconf
#
# This file is
# Copyright (C) 1997-1999 Ian Jackson <ian@davenant.greenend.org.uk>
#
# It is part of adns, which is
# Copyright (C) 1997-1999 Ian Jackson <ian@davenant.greenend.org.uk>
# Copyright (C) 1999 Tony Finch <dot@dotat.at>
#
# This file is part of adns, which is Copyright (C) 1997-1999 Ian Jackson
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2, or (at your option)
# any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software Foundation,
# Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
dnl DPKG_CACHED_TRY_COMPILE(<description>,<cachevar>,<include>,<program>,<ifyes>,<ifno>)
define(DPKG_CACHED_TRY_COMPILE,[
AC_MSG_CHECKING($1)
AC_CACHE_VAL($2,[
AC_TRY_COMPILE([$3],[$4],[$2=yes],[$2=no])
])
if test "x$$2" = xyes; then
true
$5
else
true
$6
fi
])
define(ADNS_C_GCCATTRIB,[
DPKG_CACHED_TRY_COMPILE(__attribute__((,,)),adns_cv_c_attribute_supported,,
[extern int testfunction(int x) __attribute__((,,))],
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_GNUC25_ATTRIB)
DPKG_CACHED_TRY_COMPILE(__attribute__((noreturn)),adns_cv_c_attribute_noreturn,,
[extern int testfunction(int x) __attribute__((noreturn))],
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_GNUC25_NORETURN),
AC_MSG_RESULT(no))
DPKG_CACHED_TRY_COMPILE(__attribute__((const)),adns_cv_c_attribute_const,,
[extern int testfunction(int x) __attribute__((const))],
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_GNUC25_CONST),
AC_MSG_RESULT(no))
DPKG_CACHED_TRY_COMPILE(__attribute__((format...)),adns_cv_attribute_format,,
[extern int testfunction(char *y, ...) __attribute__((format(printf,1,2)))],
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_GNUC25_PRINTFFORMAT),
AC_MSG_RESULT(no)),
AC_MSG_RESULT(no))
])
define(ADNS_C_GETFUNC,[
AC_CHECK_FUNC([$1],,[
AC_CHECK_LIB([$2],[$1],[$3],[
AC_MSG_ERROR([cannot find library function $1])
])
])
])
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