dnl  Copyright (C) 2009 Sun Microsystems
dnl This file is free software; Sun Microsystems
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.

dnl PANDORA_HEADER_ASSERT
dnl ----------------
dnl Check whether to enable assertions.
AC_DEFUN([PANDORA_HEADER_ASSERT],
[
  AC_CHECK_HEADERS(assert.h)
  AC_MSG_CHECKING([whether to enable assertions])
  AC_ARG_ENABLE([assert],
    [AS_HELP_STRING([--disable-assert],
       [Turn off assertions])],
    [ac_cv_assert="no"],
    [ac_cv_assert="yes"])
  AC_MSG_RESULT([$ac_cv_assert])

  AS_IF([test "$ac_cv_assert" = "no"], 
    [AC_DEFINE(NDEBUG, 1, [Define to 1 if assertions should be disabled.])])
])