AC_DEFUN([CMU_NANA], [
AC_REQUIRE([AC_PROG_CC])
AC_ARG_WITH(nana, [[ --with-nana use NANA [yes] ]],,with_nana=yes)
if test "$GCC" != yes; then
with_nana=no
elif test "$with_nana" = yes; then
AC_CHECK_PROGS(NANA, nana, :)
if test "$NANA" = ":"; then
with_nana=no
else
AC_CHECK_HEADER(nana.h,
AC_CHECK_LIB(nana, nana_error,,with_nana=no),
with_nana=no)
fi
else
with_nana=no
fi
AC_MSG_CHECKING([whether to use NANA])
AC_MSG_RESULT($with_nana)
if test "$with_nana" != yes; then
AC_DEFINE(WITHOUT_NANA)
fi
])