1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
|
#
# 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])
])
save_CXXFLAGS="${CXXFLAGS}"
CXXFLAGS="${AM_CXXFLAGS} ${CXXFLAGS}"
AC_LANG_PUSH(C++)
AC_CACHE_CHECK([rl_compentry_func_t works], [pandora_cv_rl_compentry_works],[
AC_COMPILE_IFELSE([
AC_LANG_PROGRAM([[
#include "stdio.h"
#include "readline/readline.h"
]],[[
rl_completion_entry_function= (rl_compentry_func_t*)NULL;
]])
],[
pandora_cv_rl_compentry_works=yes
],[
pandora_cv_rl_compentry_works=no
])
])
AS_IF([test "$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])
])
|