NetBSD/crypto/dist/heimdal/cf/proto-compat.m4

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dnl $Id: proto-compat.m4,v 1.1.1.2 2000/08/02 20:00:31 assar Exp $
dnl
dnl
dnl Check if the prototype of a function is compatible with another one
dnl
dnl AC_PROTO_COMPAT(includes, function, prototype)
AC_DEFUN(AC_PROTO_COMPAT, [
AC_CACHE_CHECK([if $2 is compatible with system prototype],
ac_cv_func_$2_proto_compat,
AC_TRY_COMPILE([$1],
[$3;],
eval "ac_cv_func_$2_proto_compat=yes",
eval "ac_cv_func_$2_proto_compat=no"))
define([foo], translit($2, [a-z], [A-Z])[_PROTO_COMPATIBLE])
if test "$ac_cv_func_$2_proto_compat" = yes; then
AC_DEFINE(foo, 1, [define if prototype of $2 is compatible with
$3])
fi
undefine([foo])
])