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
243
244
245
246
247
248
249
250
251
252
253
254
|
#***************************************************************************
# $Id$
#
# Copyright (C) 2008 - 2009 by Daniel Stenberg et al
#
# Permission to use, copy, modify, and distribute this software and its
# documentation for any purpose and without fee is hereby granted, provided
# that the above copyright notice appear in all copies and that both that
# copyright notice and this permission notice appear in supporting
# documentation, and that the name of M.I.T. not be used in advertising or
# publicity pertaining to distribution of the software without specific,
# written prior permission. M.I.T. makes no representations about the
# suitability of this software for any purpose. It is provided "as is"
# without express or implied warranty.
#
#***************************************************************************
# File version for 'aclocal' use. Keep it a single number.
# serial 5
dnl CARES_CHECK_OPTION_CURLDEBUG
dnl -------------------------------------------------
dnl Verify if configure has been invoked with option
dnl --enable-curldebug or --disable-curldebug, and set
dnl shell variable want_curldebug value as appropriate.
AC_DEFUN([CARES_CHECK_OPTION_CURLDEBUG], [
AC_BEFORE([$0],[CARES_CHECK_CURLDEBUG])dnl
AC_MSG_CHECKING([whether to enable curl debug memory tracking])
OPT_CURLDEBUG_BUILD="default"
AC_ARG_ENABLE(curldebug,
AC_HELP_STRING([--enable-curldebug],[Enable curl debug memory tracking])
AC_HELP_STRING([--disable-curldebug],[Disable curl debug memory tracking]),
OPT_CURLDEBUG_BUILD=$enableval)
case "$OPT_CURLDEBUG_BUILD" in
no)
dnl --disable-curldebug option used
want_curldebug="no"
;;
default)
dnl configure option not specified
want_curldebug="no"
;;
*)
dnl --enable-curldebug option used.
dnl The use of this option value is a request to enable curl's
dnl debug memory tracking for the c-ares library. This is a big
dnl hack that can only be done when a whole bunch of requisites
dnl are simultaneously satisfied. Later on, these requisites are
dnl verified and if they are not fully satisfied the option will
dnl be ignored and act as if --disable-curldebug had been given
dnl setting shell variable want_curldebug to 'no'.
want_curldebug="yes"
;;
esac
AC_MSG_RESULT([$want_curldebug])
])
dnl CARES_CHECK_OPTION_DEBUG
dnl -------------------------------------------------
dnl Verify if configure has been invoked with option
dnl --enable-debug or --disable-debug, and set shell
dnl variable want_debug value as appropriate.
AC_DEFUN([CARES_CHECK_OPTION_DEBUG], [
AC_BEFORE([$0],[CARES_CHECK_OPTION_WARNINGS])dnl
AC_BEFORE([$0],[CARES_CHECK_OPTION_CURLDEBUG])dnl
AC_BEFORE([$0],[CARES_CHECK_PROG_CC])dnl
AC_MSG_CHECKING([whether to enable debug build options])
OPT_DEBUG_BUILD="default"
AC_ARG_ENABLE(debug,
AC_HELP_STRING([--enable-debug],[Enable debug build options])
AC_HELP_STRING([--disable-debug],[Disable debug build options]),
OPT_DEBUG_BUILD=$enableval)
case "$OPT_DEBUG_BUILD" in
no)
dnl --disable-debug option used
want_debug="no"
;;
default)
dnl configure option not specified
want_debug="no"
;;
*)
dnl --enable-debug option used
want_debug="yes"
;;
esac
AC_MSG_RESULT([$want_debug])
])
dnl CARES_CHECK_OPTION_NONBLOCKING
dnl -------------------------------------------------
dnl Verify if configure has been invoked with option
dnl --enable-nonblocking or --disable-nonblocking, and
dnl set shell variable want_nonblocking as appropriate.
AC_DEFUN([CARES_CHECK_OPTION_NONBLOCKING], [
AC_BEFORE([$0],[CARES_CHECK_NONBLOCKING_SOCKET])dnl
AC_MSG_CHECKING([whether to enable non-blocking communications])
OPT_NONBLOCKING="default"
AC_ARG_ENABLE(nonblocking,
AC_HELP_STRING([--enable-nonblocking],[Enable non-blocking communications])
AC_HELP_STRING([--disable-nonblocking],[Disable non-blocking communications]),
OPT_NONBLOCKING=$enableval)
case "$OPT_NONBLOCKING" in
no)
dnl --disable-nonblocking option used
want_nonblocking="no"
;;
default)
dnl configure option not specified
want_nonblocking="yes"
;;
*)
dnl --enable-nonblocking option used
want_nonblocking="yes"
;;
esac
AC_MSG_RESULT([$want_nonblocking])
])
dnl CARES_CHECK_OPTION_OPTIMIZE
dnl -------------------------------------------------
dnl Verify if configure has been invoked with option
dnl --enable-optimize or --disable-optimize, and set
dnl shell variable want_optimize value as appropriate.
AC_DEFUN([CARES_CHECK_OPTION_OPTIMIZE], [
AC_REQUIRE([CARES_CHECK_OPTION_DEBUG])dnl
AC_BEFORE([$0],[CARES_CHECK_PROG_CC])dnl
AC_MSG_CHECKING([whether to enable compiler optimizer])
OPT_COMPILER_OPTIMIZE="default"
AC_ARG_ENABLE(optimize,
AC_HELP_STRING([--enable-optimize(=OPT)],[Enable compiler optimizations (default=-O2)])
AC_HELP_STRING([--disable-optimize],[Disable compiler optimizations]),
OPT_COMPILER_OPTIMIZE=$enableval)
case "$OPT_COMPILER_OPTIMIZE" in
no)
dnl --disable-optimize option used. We will handle this as
dnl a request to disable compiler optimizations if possible.
dnl If the compiler is known CFLAGS and CPPFLAGS will be
dnl overridden, otherwise this can not be honored.
want_optimize="no"
AC_MSG_RESULT([no])
;;
default)
dnl configure's optimize option not specified. Initially we will
dnl handle this as a a request contrary to configure's setting
dnl for --enable-debug. IOW, initially, for debug-enabled builds
dnl this will be handled as a request to disable optimizations if
dnl possible, and for debug-disabled builds this will be handled
dnl initially as a request to enable optimizations if possible.
dnl Finally, if the compiler is known and CFLAGS and CPPFLAGS do
dnl not have any optimizer flag the request will be honored, in
dnl any other case the request can not be honored.
dnl IOW, existing optimizer flags defined in CFLAGS or CPPFLAGS
dnl will always take precedence over any initial assumption.
if test "$want_debug" = "yes"; then
want_optimize="assume_no"
AC_MSG_RESULT([not specified (assuming no)])
else
want_optimize="assume_yes"
AC_MSG_RESULT([not specified (assuming yes)])
fi
;;
*)
dnl --enable-optimize option used. We will handle this as
dnl a request to enable compiler optimizations if possible.
dnl If the compiler is known CFLAGS and CPPFLAGS will be
dnl overridden, otherwise this can not be honored.
want_optimize="yes"
AC_MSG_RESULT([yes])
;;
esac
])
dnl CARES_CHECK_OPTION_WARNINGS
dnl -------------------------------------------------
dnl Verify if configure has been invoked with option
dnl --enable-warnings or --disable-warnings, and set
dnl shell variable want_warnings as appropriate.
AC_DEFUN([CARES_CHECK_OPTION_WARNINGS], [
AC_REQUIRE([CARES_CHECK_OPTION_DEBUG])dnl
AC_BEFORE([$0],[CARES_CHECK_PROG_CC])dnl
AC_MSG_CHECKING([whether to enable strict compiler warnings])
OPT_COMPILER_WARNINGS="default"
AC_ARG_ENABLE(warnings,
AC_HELP_STRING([--enable-warnings],[Enable strict compiler warnings])
AC_HELP_STRING([--disable-warnings],[Disable strict compiler warnings]),
OPT_COMPILER_WARNINGS=$enableval)
case "$OPT_COMPILER_WARNINGS" in
no)
dnl --disable-warnings option used
want_warnings="no"
;;
default)
dnl configure option not specified, so
dnl use same setting as --enable-debug
want_warnings="$want_debug"
;;
*)
dnl --enable-warnings option used
want_warnings="yes"
;;
esac
AC_MSG_RESULT([$want_warnings])
])
dnl CARES_CHECK_NONBLOCKING_SOCKET
dnl -------------------------------------------------
dnl Check for how to set a socket into non-blocking state.
AC_DEFUN([CARES_CHECK_NONBLOCKING_SOCKET], [
AC_REQUIRE([CARES_CHECK_OPTION_NONBLOCKING])dnl
AC_REQUIRE([CARES_CHECK_FUNC_FCNTL])dnl
AC_REQUIRE([CARES_CHECK_FUNC_IOCTL])dnl
AC_REQUIRE([CARES_CHECK_FUNC_IOCTLSOCKET])dnl
AC_REQUIRE([CARES_CHECK_FUNC_IOCTLSOCKET_CAMEL])dnl
AC_REQUIRE([CARES_CHECK_FUNC_SETSOCKOPT])dnl
#
tst_method="unknown"
if test "$want_nonblocking" = "yes"; then
AC_MSG_CHECKING([how to set a socket into non-blocking mode])
if test "x$ac_cv_func_fcntl_o_nonblock" = "xyes"; then
tst_method="fcntl O_NONBLOCK"
elif test "x$ac_cv_func_ioctl_fionbio" = "xyes"; then
tst_method="ioctl FIONBIO"
elif test "x$ac_cv_func_ioctlsocket_fionbio" = "xyes"; then
tst_method="ioctlsocket FIONBIO"
elif test "x$ac_cv_func_ioctlsocket_camel_fionbio" = "xyes"; then
tst_method="IoctlSocket FIONBIO"
elif test "x$ac_cv_func_setsockopt_so_nonblock" = "xyes"; then
tst_method="setsockopt SO_NONBLOCK"
fi
AC_MSG_RESULT([$tst_method])
if test "$tst_method" = "unknown"; then
AC_MSG_WARN([cannot determine non-blocking socket method.])
fi
fi
if test "$tst_method" = "unknown"; then
AC_DEFINE_UNQUOTED(USE_BLOCKING_SOCKETS, 1,
[Define to disable non-blocking sockets.])
AC_MSG_WARN([non-blocking sockets disabled.])
fi
])
|
