AC_DEFUN([VL_LIB_READLINE], [ AC_CACHE_CHECK([for a readline compatible library], vl_cv_lib_readline, [ ORIG_LIBS="$LIBS" for readline_lib in readline edit editline; do for termcap_lib in "" termcap curses ncurses; do if test -z "$termcap_lib"; then TRY_LIB="-l$readline_lib" else TRY_LIB="-l$readline_lib -l$termcap_lib" fi LIBS="$ORIG_LIBS $TRY_LIB" AC_TRY_LINK_FUNC(readline, vl_cv_lib_readline="$TRY_LIB") if test -n "$vl_cv_lib_readline"; then break fi done if test -n "$vl_cv_lib_readline"; then break fi done if test -z "$vl_cv_lib_readline"; then vl_cv_lib_readline="no" LIBS="$ORIG_LIBS" fi ]) if test "$vl_cv_lib_readline" != "no"; then LIBREADLINE="$vl_cv_lib_readline" AC_DEFINE(HAVE_LIBREADLINE, 1, [Define if you have a readline compatible library]) AC_CHECK_HEADERS(readline.h readline/readline.h) AC_CACHE_CHECK([whether readline supports history], [vl_cv_lib_readline_history], [ vl_cv_lib_readline_history="no" AC_TRY_LINK_FUNC([add_history], [vl_cv_lib_readline_history="yes"]) ]) if test "$vl_cv_lib_readline_history" = "yes"; then AC_DEFINE(HAVE_READLINE_HISTORY, 1, [Define if your readline library has \`add_history']) AC_CHECK_HEADERS(history.h readline/history.h) fi fi AC_SUBST(LIBREADLINE) ])dnl