##################################################
# Check for readline support.
##################################################

AC_DEFUN([LP_CHECK_READLINE],[

AC_ARG_WITH( readline,
      [  --with-readline      Set prefix where gnu readline headers and libs can be found (ex:/usr, /usr/local) [default=/usr] ],
      [ readline_prefix=${withval}],[ readline_prefix="/usr" ])

if test "$readline_prefix" != "/usr"; then
	READLINE_CFLAGS="-I$readline_prefix/include"
	READLINE_LIBS="-L$readline_prefix/lib"
fi

CPPFLAGS_save=$CPPFLAGS
LIBS_save=$LIBS
CPPFLAGS="$CPPFLAGS $READLINE_CFLAGS"
LIBS="$LIBS $READLINE_LIBS"
AC_CHECK_HEADERS(readline.h readline/readline.h, readline_h_found=yes)
AC_CHECK_HEADERS(history.h readline/history.h)

AC_CHECK_LIB(readline, readline, [readline_libs_found=yes],[],[-lncurses])

LIBS=$LIBS_save
CPPFLAGS=$CPPFLAGS_save

if test "$readline_libs_found$readline_h_found" != "yesyes" ; then
	AC_MSG_ERROR("Could not find libreadline headers or library")
fi

READLINE_LIBS="$READLINE_LIBS -lreadline -lncurses"


AC_SUBST(READLINE_CFLAGS)
AC_SUBST(READLINE_LIBS)
])