You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
113 lines
3.9 KiB
113 lines
3.9 KiB
dnl @synopsis VL_LIB_READLINE
|
|
dnl
|
|
dnl Searches for a readline compatible library. If found, defines
|
|
dnl `HAVE_LIBREADLINE'. If the found library has the `add_history'
|
|
dnl function, sets also `HAVE_READLINE_HISTORY'. Also checks for the
|
|
dnl locations of the necessary include files and sets `HAVE_READLINE_H'
|
|
dnl or `HAVE_READLINE_READLINE_H' and `HAVE_READLINE_HISTORY_H' or
|
|
dnl 'HAVE_HISTORY_H' if the corresponding include files exists.
|
|
dnl
|
|
dnl The libraries that may be readline compatible are `libedit',
|
|
dnl `libeditline' and `libreadline'. Sometimes we need to link a termcap
|
|
dnl library for readline to work, this macro tests these cases too by
|
|
dnl trying to link with `libtermcap', `libcurses' or `libncurses' before
|
|
dnl giving up.
|
|
dnl
|
|
dnl Here is an example of how to use the information provided by this
|
|
dnl macro to perform the necessary includes or declarations in a C file:
|
|
dnl
|
|
dnl #ifdef HAVE_LIBREADLINE
|
|
dnl # if defined(HAVE_READLINE_READLINE_H)
|
|
dnl # include <readline/readline.h>
|
|
dnl # elif defined(HAVE_READLINE_H)
|
|
dnl # include <readline.h>
|
|
dnl # else /* !defined(HAVE_READLINE_H) */
|
|
dnl extern char *readline ();
|
|
dnl # endif /* !defined(HAVE_READLINE_H) */
|
|
dnl char *cmdline = NULL;
|
|
dnl #else /* !defined(HAVE_READLINE_READLINE_H) */
|
|
dnl /* no readline */
|
|
dnl #endif /* HAVE_LIBREADLINE */
|
|
dnl
|
|
dnl #ifdef HAVE_READLINE_HISTORY
|
|
dnl # if defined(HAVE_READLINE_HISTORY_H)
|
|
dnl # include <readline/history.h>
|
|
dnl # elif defined(HAVE_HISTORY_H)
|
|
dnl # include <history.h>
|
|
dnl # else /* !defined(HAVE_HISTORY_H) */
|
|
dnl extern void add_history ();
|
|
dnl extern int write_history ();
|
|
dnl extern int read_history ();
|
|
dnl # endif /* defined(HAVE_READLINE_HISTORY_H) */
|
|
dnl /* no history */
|
|
dnl #endif /* HAVE_READLINE_HISTORY */
|
|
dnl
|
|
dnl
|
|
dnl @version 1.1
|
|
dnl @author Ville Laurikari <vl@iki.fi>
|
|
dnl
|
|
dnl Modifications by T. Joseph Carter for pilot-link:
|
|
dnl - Don't put -lreadline in LIBS
|
|
dnl - Add --without-readline to disable use of it
|
|
dnl - Set msg_readline and RL_LIBS appropriately
|
|
dnl
|
|
dnl TODO:
|
|
dnl - Add --with-readline-includes and -headers
|
|
dnl - Make the above default to $with_readline/{include,lib} if set to
|
|
dnl something other than "yes" or "no".
|
|
dnl
|
|
AC_DEFUN([VL_LIB_READLINE], [
|
|
msg_readline="no"
|
|
RL_LIBS=""
|
|
AC_ARG_WITH(readline,
|
|
[ --without-readline Disable readline [[default=no]]],,
|
|
with_readline="yes")
|
|
if test "x$with_readline" != "xno"; then
|
|
|
|
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 "$vl_cv_lib_readline"; then
|
|
vl_cv_lib_readline="no"
|
|
fi
|
|
LIBS="$ORIG_LIBS"
|
|
])
|
|
fi
|
|
|
|
if test "$vl_cv_lib_readline" != "no"; then
|
|
msg_readline="yes"
|
|
RL_LIBS="$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(RL_LIBS)
|
|
])dnl
|