3 dnl ac_check_type + extra headers
5 dnl AC_CHECK_TYPE_EXTRA(TYPE, DEFAULT, HEADERS)
6 AC_DEFUN([AC_CHECK_TYPE_EXTRA],
7 [AC_REQUIRE([AC_HEADER_STDC])dnl
8 AC_MSG_CHECKING(for $1)
9 AC_CACHE_VAL(ac_cv_type_$1,
12 <<$1[^a-zA-Z_0-9]>>dnl
13 changequote([,]), [#include <sys/types.h>
18 $3], ac_cv_type_$1=yes, ac_cv_type_$1=no)])dnl
19 AC_MSG_RESULT($ac_cv_type_$1)
20 if test $ac_cv_type_$1 = no; then
21 AC_DEFINE($1, $2, [Define this to what the type $1 should be.])