+#
+# SYNOPSIS
+#
+# PANDORA_HAVE_LIBREADLINE
+#
+# DESCRIPTION
+#
+# Searches for a readline compatible library. If found, defines
+# `HAVE_LIBREADLINE'. If the found library has the `add_history'
+# function, sets also `HAVE_READLINE_HISTORY'. Also checks for the
+# locations of the necessary include files and sets `HAVE_READLINE_H'
+# or `HAVE_READLINE_READLINE_H' and `HAVE_READLINE_HISTORY_H' or
+# 'HAVE_HISTORY_H' if the corresponding include files exists.
+#
+# The libraries that may be readline compatible are `libedit',
+# `libeditline' and `libreadline'. Sometimes we need to link a
+# termcap library for readline to work, this macro tests these cases
+# too by trying to link with `libtermcap', `libcurses' or
+# `libncurses' before giving up.
+#
+# Here is an example of how to use the information provided by this
+# macro to perform the necessary includes or declarations in a C
+# file:
+#
+# #ifdef HAVE_LIBREADLINE
+# # if defined(HAVE_READLINE_READLINE_H)
+# # include <readline/readline.h>
+# # elif defined(HAVE_READLINE_H)
+# # include <readline.h>
+# # else /* !defined(HAVE_READLINE_H) */
+# extern char *readline ();
+# # endif /* !defined(HAVE_READLINE_H) */
+# char *cmdline = NULL;
+# #else /* !defined(HAVE_READLINE_READLINE_H) */
+# /* no readline */
+# #endif /* HAVE_LIBREADLINE */
+#
+# #ifdef HAVE_READLINE_HISTORY
+# # if defined(HAVE_READLINE_HISTORY_H)
+# # include <readline/history.h>
+# # elif defined(HAVE_HISTORY_H)
+# # include <history.h>
+# # else /* !defined(HAVE_HISTORY_H) */
+# extern void add_history ();
+# extern int write_history ();
+# extern int read_history ();
+# # endif /* defined(HAVE_READLINE_HISTORY_H) */
+# /* no history */
+# #endif /* HAVE_READLINE_HISTORY */
+#
+# LAST MODIFICATION
+#
+# 2009-11-17
+#
+# Based on VL_LIB_READLINE from Ville Laurikari
+#
+# COPYLEFT
+#
+# Copyright (c) 2009 Monty Taylor
+# Copyright (c) 2002 Ville Laurikari <vl@iki.fi>
+#
+# Copying and distribution of this file, with or without
+# modification, are permitted in any medium without royalty provided
+# the copyright notice and this notice are preserved.
+
+AC_DEFUN([PANDORA_CHECK_TIOCGWINSZ],[
+ AC_CACHE_CHECK([for TIOCGWINSZ in sys/ioctl.h],
+ [pandora_cv_tiocgwinsz_in_ioctl],[
+ AC_COMPILE_IFELSE([
+ AC_LANG_PROGRAM([[
+#include <sys/types.h>
+#include <sys/ioctl.h>
+ ]],[[
+int x= TIOCGWINSZ;
+ ]])
+ ],[
+ pandora_cv_tiocgwinsz_in_ioctl=yes
+ ],[
+ pandora_cv_tiocgwinsz_in_ioctl=no
+ ])
+ ])
+ AS_IF([test "$pandora_cv_tiocgwinsz_in_ioctl" = "yes"],[
+ AC_DEFINE([GWINSZ_IN_SYS_IOCTL], [1],
+ [READLINE: your system defines TIOCGWINSZ in sys/ioctl.h.])
+ ])
+])
+
+AC_DEFUN([PANDORA_CHECK_RL_COMPENTRY], [
+ AC_CACHE_CHECK([defined rl_compentry_func_t], [pandora_cv_rl_compentry],[
+ AC_COMPILE_IFELSE([
+ AC_LANG_PROGRAM([[
+#include "stdio.h"
+#include "readline/readline.h"
+ ]],[[
+rl_compentry_func_t *func2= (rl_compentry_func_t*)0;
+ ]])
+ ],[
+ pandora_cv_rl_compentry=yes
+ ],[
+ pandora_cv_rl_compentry=no
+ ])
+ ])
+ AS_IF([test "$pandora_cv_rl_compentry" = "yes"],[
+ AC_DEFINE([HAVE_RL_COMPENTRY], [1],
+ [Does system provide rl_compentry_func_t])
+ ])
+
+ AC_LANG_PUSH(C++)
+ save_CXXFLAGS="${CXXFLAGS}"
+ CXXFLAGS="${AM_CXXFLAGS} ${CXXFLAGS}"
+ AC_CACHE_CHECK([rl_compentry_func_t works], [pandora_cv_rl_compentry_works],[
+ AC_COMPILE_IFELSE([
+ AC_LANG_PROGRAM([[
+#include "stdio.h"
+#include "readline/readline.h"
+ ]],[[
+rl_completion_entry_function= (rl_compentry_func_t*)NULL;
+ ]])
+ ],[
+ pandora_cv_rl_compentry_works=yes
+ ],[
+ pandora_cv_rl_compentry_works=no
+ ])
+ ])
+ AS_IF([test "$pandora_cv_rl_compentry_works" = "yes"],[
+ AC_DEFINE([HAVE_WORKING_RL_COMPENTRY], [1],
+ [Does system provide an rl_compentry_func_t that is usable])
+ ])
+ CXXFLAGS="${save_CXXFLAGS}"
+ AC_LANG_POP()
+])
+
+
+AC_DEFUN([PANDORA_CHECK_RL_COMPLETION_FUNC], [
+ AC_CACHE_CHECK([defined rl_completion_func_t], [pandora_cv_rl_completion],[
+ AC_COMPILE_IFELSE([
+ AC_LANG_PROGRAM([[
+#include "stdio.h"
+#include "readline/readline.h"
+ ]],[[
+rl_completion_func_t *func1= (rl_completion_func_t*)0;
+ ]])
+ ],[
+ pandora_cv_rl_completion=yes
+ ],[
+ pandora_cv_rl_completion=no
+ ])
+ ])
+ AS_IF([test "$pandora_cv_rl_completion" = "yes"],[
+ AC_DEFINE([HAVE_RL_COMPLETION], [1],
+ [Does system provide rl_completion_func_t])
+ ])
+])
+
+AC_DEFUN([_PANDORA_SEARCH_LIBREADLINE], [
+
+ save_LIBS="${LIBS}"
+ LIBS=""
+
+ AC_CACHE_CHECK([for a readline compatible library],
+ ac_cv_libreadline, [
+ ORIG_LIBS="$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 $TRY_LIB"
+ AC_TRY_LINK_FUNC(readline, ac_cv_libreadline="$TRY_LIB")
+ if test -n "$ac_cv_libreadline"; then
+ break
+ fi
+ done
+ if test -n "$ac_cv_libreadline"; then
+ break
+ fi
+ done
+ if test -z "$ac_cv_libreadline"; then
+ ac_cv_libreadline="no"
+ LIBS="$ORIG_LIBS"
+ fi
+ ])
+
+ if test "$ac_cv_libreadline" != "no"; then
+ AC_DEFINE(HAVE_LIBREADLINE, 1,
+ [Define if you have a readline compatible library])
+ AC_CHECK_HEADERS(readline.h readline/readline.h)
+ AC_CACHE_CHECK([whether readline supports history],
+ ac_cv_libreadline_history, [
+ ac_cv_libreadline_history="no"
+ AC_TRY_LINK_FUNC(add_history, ac_cv_libreadline_history="yes")
+ ])
+ if test "$ac_cv_libreadline_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
+ PANDORA_CHECK_RL_COMPENTRY
+ PANDORA_CHECK_RL_COMPLETION_FUNC
+ PANDORA_CHECK_TIOCGWINSZ
+
+
+ READLINE_LIBS="${LIBS}"
+ LIBS="${save_LIBS}"
+ AC_SUBST(READLINE_LIBS)
+
+ AM_CONDITIONAL(HAVE_LIBREADLINE, [test "x${ac_cv_libreadline}" = "xyes"])
+])
+
+AC_DEFUN([_PANDORA_HAVE_LIBREADLINE],[
+
+ AC_ARG_ENABLE([libreadline],
+ [AS_HELP_STRING([--disable-libreadline],
+ [Build with libreadline support @<:@default=on@:>@])],
+ [ac_enable_libreadline="$enableval"],
+ [ac_enable_libreadline="yes"])
+
+ _PANDORA_SEARCH_LIBREADLINE
+])
+
+
+AC_DEFUN([PANDORA_HAVE_LIBREADLINE],[
+ AC_REQUIRE([_PANDORA_HAVE_LIBREADLINE])
+])
+
+AC_DEFUN([_PANDORA_REQUIRE_LIBREADLINE],[
+ ac_enable_libreadline="yes"
+ _PANDORA_SEARCH_LIBREADLINE
+
+ AS_IF([test "x$ac_cv_libreadline" = "xno"],
+ AC_MSG_ERROR([libreadline is required for ${PACKAGE}. On Debian this can be found in libreadline5-dev. On RedHat this can be found in readline-devel.]))
+
+])
+
+AC_DEFUN([PANDORA_REQUIRE_LIBREADLINE],[
+ AC_REQUIRE([_PANDORA_REQUIRE_LIBREADLINE])
+])
+
+
projects / awesomized / libmemcached / commitdiff
