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dnl $Id: check-type-extra.m4 13338 2004-02-12 14:21:14Z lha $
dnl
dnl ac_check_type + extra headers
dnl AC_CHECK_TYPE_EXTRA(TYPE, DEFAULT, HEADERS)
AC_DEFUN([AC_CHECK_TYPE_EXTRA],
[AC_REQUIRE([AC_HEADER_STDC])dnl
AC_MSG_CHECKING(for $1)
AC_CACHE_VAL(ac_cv_type_$1,
[AC_EGREP_CPP(dnl
changequote(<<,>>)dnl
<<$1[^a-zA-Z_0-9]>>dnl
changequote([,]), [#include <sys/types.h>
#if STDC_HEADERS
#include <stdlib.h>
#include <stddef.h>
#endif
$3], ac_cv_type_$1=yes, ac_cv_type_$1=no)])dnl
AC_MSG_RESULT($ac_cv_type_$1)
if test $ac_cv_type_$1 = no; then
AC_DEFINE($1, $2, [Define this to what the type $1 should be.])
fi
])
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