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HUGE UPDATE: convert build system to autotools why? because cmake sucks :)
author Paper <mrpapersonic@gmail.com>
date Fri, 19 Jan 2024 00:24:02 -0500
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235:593108b3d555 236:4d461ef7d424
1 #***************************************************************************
2 # _ _ ____ _
3 # Project ___| | | | _ \| |
4 # / __| | | | |_) | |
5 # | (__| |_| | _ <| |___
6 # \___|\___/|_| \_\_____|
7 #
8 # Copyright (C) David Shaw <dshaw@jabberwocky.com>
9 #
10 # This software is licensed as described in the file COPYING, which
11 # you should have received as part of this distribution. The terms
12 # are also available at https://curl.se/docs/copyright.html.
13 #
14 # You may opt to use, copy, modify, merge, publish, distribute and/or sell
15 # copies of the Software, and permit persons to whom the Software is
16 # furnished to do so, under the terms of the COPYING file.
17 #
18 # This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
19 # KIND, either express or implied.
20 #
21 # SPDX-License-Identifier: curl
22 #
23 ###########################################################################
24 # LIBCURL_CHECK_CONFIG ([DEFAULT-ACTION], [MINIMUM-VERSION],
25 # [ACTION-IF-YES], [ACTION-IF-NO])
26 # ----------------------------------------------------------
27 # David Shaw <dshaw@jabberwocky.com> May-09-2006
28 #
29 # Checks for libcurl. DEFAULT-ACTION is the string yes or no to
30 # specify whether to default to --with-libcurl or --without-libcurl.
31 # If not supplied, DEFAULT-ACTION is yes. MINIMUM-VERSION is the
32 # minimum version of libcurl to accept. Pass the version as a regular
33 # version number like 7.10.1. If not supplied, any version is
34 # accepted. ACTION-IF-YES is a list of shell commands to run if
35 # libcurl was successfully found and passed the various tests.
36 # ACTION-IF-NO is a list of shell commands that are run otherwise.
37 # Note that using --without-libcurl does run ACTION-IF-NO.
38 #
39 # This macro #defines HAVE_LIBCURL if a working libcurl setup is
40 # found, and sets @LIBCURL@ and @LIBCURL_CPPFLAGS@ to the necessary
41 # values. Other useful defines are LIBCURL_FEATURE_xxx where xxx are
42 # the various features supported by libcurl, and LIBCURL_PROTOCOL_yyy
43 # where yyy are the various protocols supported by libcurl. Both xxx
44 # and yyy are capitalized. See the list of AH_TEMPLATEs at the top of
45 # the macro for the complete list of possible defines. Shell
46 # variables $libcurl_feature_xxx and $libcurl_protocol_yyy are also
47 # defined to 'yes' for those features and protocols that were found.
48 # Note that xxx and yyy keep the same capitalization as in the
49 # curl-config list (e.g. it's "HTTP" and not "http").
50 #
51 # Users may override the detected values by doing something like:
52 # LIBCURL="-lcurl" LIBCURL_CPPFLAGS="-I/usr/myinclude" ./configure
53 #
54 # For the sake of sanity, this macro assumes that any libcurl that is found is
55 # after version 7.7.2, the first version that included the curl-config script.
56 # Note that it is important for people packaging binary versions of libcurl to
57 # include this script! Without curl-config, we can only guess what protocols
58 # are available, or use curl_version_info to figure it out at runtime.
59
60 AC_DEFUN([LIBCURL_CHECK_CONFIG],
61 [
62 AH_TEMPLATE([LIBCURL_FEATURE_SSL],[Defined if libcurl supports SSL])
63 AH_TEMPLATE([LIBCURL_FEATURE_KRB4],[Defined if libcurl supports KRB4])
64 AH_TEMPLATE([LIBCURL_FEATURE_IPV6],[Defined if libcurl supports IPv6])
65 AH_TEMPLATE([LIBCURL_FEATURE_LIBZ],[Defined if libcurl supports libz])
66 AH_TEMPLATE([LIBCURL_FEATURE_ASYNCHDNS],[Defined if libcurl supports AsynchDNS])
67 AH_TEMPLATE([LIBCURL_FEATURE_IDN],[Defined if libcurl supports IDN])
68 AH_TEMPLATE([LIBCURL_FEATURE_SSPI],[Defined if libcurl supports SSPI])
69 AH_TEMPLATE([LIBCURL_FEATURE_NTLM],[Defined if libcurl supports NTLM])
70
71 AH_TEMPLATE([LIBCURL_PROTOCOL_HTTP],[Defined if libcurl supports HTTP])
72 AH_TEMPLATE([LIBCURL_PROTOCOL_HTTPS],[Defined if libcurl supports HTTPS])
73 AH_TEMPLATE([LIBCURL_PROTOCOL_FTP],[Defined if libcurl supports FTP])
74 AH_TEMPLATE([LIBCURL_PROTOCOL_FTPS],[Defined if libcurl supports FTPS])
75 AH_TEMPLATE([LIBCURL_PROTOCOL_FILE],[Defined if libcurl supports FILE])
76 AH_TEMPLATE([LIBCURL_PROTOCOL_TELNET],[Defined if libcurl supports TELNET])
77 AH_TEMPLATE([LIBCURL_PROTOCOL_LDAP],[Defined if libcurl supports LDAP])
78 AH_TEMPLATE([LIBCURL_PROTOCOL_DICT],[Defined if libcurl supports DICT])
79 AH_TEMPLATE([LIBCURL_PROTOCOL_TFTP],[Defined if libcurl supports TFTP])
80 AH_TEMPLATE([LIBCURL_PROTOCOL_RTSP],[Defined if libcurl supports RTSP])
81 AH_TEMPLATE([LIBCURL_PROTOCOL_POP3],[Defined if libcurl supports POP3])
82 AH_TEMPLATE([LIBCURL_PROTOCOL_IMAP],[Defined if libcurl supports IMAP])
83 AH_TEMPLATE([LIBCURL_PROTOCOL_SMTP],[Defined if libcurl supports SMTP])
84
85 AC_ARG_WITH(libcurl,
86 AS_HELP_STRING([--with-libcurl=PREFIX],[look for the curl library in PREFIX/lib and headers in PREFIX/include]),
87 [_libcurl_with=$withval],[_libcurl_with=ifelse([$1],,[yes],[$1])])
88
89 if test "$_libcurl_with" != "no" ; then
90
91 AC_PROG_AWK
92
93 _libcurl_version_parse="eval $AWK '{split(\$NF,A,\".\"); X=256*256*A[[1]]+256*A[[2]]+A[[3]]; print X;}'"
94
95 _libcurl_try_link=yes
96
97 if test -d "$_libcurl_with" ; then
98 LIBCURL_CPPFLAGS="-I$withval/include"
99 _libcurl_ldflags="-L$withval/lib"
100 AC_PATH_PROG([_libcurl_config],[curl-config],[],
101 ["$withval/bin"])
102 else
103 AC_PATH_PROG([_libcurl_config],[curl-config],[],[$PATH])
104 fi
105
106 if test x$_libcurl_config != "x" ; then
107 AC_CACHE_CHECK([for the version of libcurl],
108 [libcurl_cv_lib_curl_version],
109 [libcurl_cv_lib_curl_version=`$_libcurl_config --version | $AWK '{print $[]2}'`])
110
111 _libcurl_version=`echo $libcurl_cv_lib_curl_version | $_libcurl_version_parse`
112 _libcurl_wanted=`echo ifelse([$2],,[0],[$2]) | $_libcurl_version_parse`
113
114 if test $_libcurl_wanted -gt 0 ; then
115 AC_CACHE_CHECK([for libcurl >= version $2],
116 [libcurl_cv_lib_version_ok],
117 [
118 if test $_libcurl_version -ge $_libcurl_wanted ; then
119 libcurl_cv_lib_version_ok=yes
120 else
121 libcurl_cv_lib_version_ok=no
122 fi
123 ])
124 fi
125
126 if test $_libcurl_wanted -eq 0 || test x$libcurl_cv_lib_version_ok = xyes ; then
127 if test x"$LIBCURL_CPPFLAGS" = "x" ; then
128 LIBCURL_CPPFLAGS=`$_libcurl_config --cflags`
129 fi
130 if test x"$LIBCURL" = "x" ; then
131 LIBCURL=`$_libcurl_config --libs`
132
133 # This is so silly, but Apple actually has a bug in their
134 # curl-config script. Fixed in Tiger, but there are still
135 # lots of Panther installs around.
136 case "${host}" in
137 powerpc-apple-darwin7*)
138 LIBCURL=`echo $LIBCURL | sed -e 's|-arch i386||g'`
139 ;;
140 esac
141 fi
142
143 # All curl-config scripts support --feature
144 _libcurl_features=`$_libcurl_config --feature`
145
146 # Is it modern enough to have --protocols? (7.12.4)
147 if test $_libcurl_version -ge 461828 ; then
148 _libcurl_protocols=`$_libcurl_config --protocols`
149 fi
150 else
151 _libcurl_try_link=no
152 fi
153
154 unset _libcurl_wanted
155 fi
156
157 if test $_libcurl_try_link = yes ; then
158
159 # we did not find curl-config, so let's see if the user-supplied
160 # link line (or failing that, "-lcurl") is enough.
161 LIBCURL=${LIBCURL-"$_libcurl_ldflags -lcurl"}
162
163 AC_CACHE_CHECK([whether libcurl is usable],
164 [libcurl_cv_lib_curl_usable],
165 [
166 _libcurl_save_cppflags=$CPPFLAGS
167 CPPFLAGS="$LIBCURL_CPPFLAGS $CPPFLAGS"
168 _libcurl_save_libs=$LIBS
169 LIBS="$LIBCURL $LIBS"
170
171 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <curl/curl.h>]],[[
172 /* Try and use a few common options to force a failure if we are
173 missing symbols or cannot link. */
174 int x;
175 curl_easy_setopt(NULL,CURLOPT_URL,NULL);
176 x=CURL_ERROR_SIZE;
177 x=CURLOPT_WRITEFUNCTION;
178 x=CURLOPT_WRITEDATA;
179 x=CURLOPT_ERRORBUFFER;
180 x=CURLOPT_STDERR;
181 x=CURLOPT_VERBOSE;
182 if (x) {;}
183 ]])],libcurl_cv_lib_curl_usable=yes,libcurl_cv_lib_curl_usable=no)
184
185 CPPFLAGS=$_libcurl_save_cppflags
186 LIBS=$_libcurl_save_libs
187 unset _libcurl_save_cppflags
188 unset _libcurl_save_libs
189 ])
190
191 if test $libcurl_cv_lib_curl_usable = yes ; then
192
193 # Does curl_free() exist in this version of libcurl?
194 # If not, fake it with free()
195
196 _libcurl_save_cppflags=$CPPFLAGS
197 CPPFLAGS="$CPPFLAGS $LIBCURL_CPPFLAGS"
198 _libcurl_save_libs=$LIBS
199 LIBS="$LIBS $LIBCURL"
200
201 AC_CHECK_DECL([curl_free],[],
202 [AC_DEFINE([curl_free],[free],
203 [Define curl_free() as free() if our version of curl lacks curl_free.])],
204 [[#include <curl/curl.h>]])
205
206 CPPFLAGS=$_libcurl_save_cppflags
207 LIBS=$_libcurl_save_libs
208 unset _libcurl_save_cppflags
209 unset _libcurl_save_libs
210
211 AC_DEFINE(HAVE_LIBCURL,1,
212 [Define to 1 if you have a functional curl library.])
213 AC_SUBST(LIBCURL_CPPFLAGS)
214 AC_SUBST(LIBCURL)
215
216 for _libcurl_feature in $_libcurl_features ; do
217 AC_DEFINE_UNQUOTED(AS_TR_CPP(libcurl_feature_$_libcurl_feature),[1])
218 eval AS_TR_SH(libcurl_feature_$_libcurl_feature)=yes
219 done
220
221 if test "x$_libcurl_protocols" = "x" ; then
222
223 # We do not have --protocols, so just assume that all
224 # protocols are available
225 _libcurl_protocols="HTTP FTP FILE TELNET LDAP DICT TFTP"
226
227 if test x$libcurl_feature_SSL = xyes ; then
228 _libcurl_protocols="$_libcurl_protocols HTTPS"
229
230 # FTPS was not standards-compliant until version
231 # 7.11.0 (0x070b00 == 461568)
232 if test $_libcurl_version -ge 461568; then
233 _libcurl_protocols="$_libcurl_protocols FTPS"
234 fi
235 fi
236
237 # RTSP, IMAP, POP3 and SMTP were added in
238 # 7.20.0 (0x071400 == 463872)
239 if test $_libcurl_version -ge 463872; then
240 _libcurl_protocols="$_libcurl_protocols RTSP IMAP POP3 SMTP"
241 fi
242 fi
243
244 for _libcurl_protocol in $_libcurl_protocols ; do
245 AC_DEFINE_UNQUOTED(AS_TR_CPP(libcurl_protocol_$_libcurl_protocol),[1])
246 eval AS_TR_SH(libcurl_protocol_$_libcurl_protocol)=yes
247 done
248 else
249 unset LIBCURL
250 unset LIBCURL_CPPFLAGS
251 fi
252 fi
253
254 unset _libcurl_try_link
255 unset _libcurl_version_parse
256 unset _libcurl_config
257 unset _libcurl_feature
258 unset _libcurl_features
259 unset _libcurl_protocol
260 unset _libcurl_protocols
261 unset _libcurl_version
262 unset _libcurl_ldflags
263 fi
264
265 if test x$_libcurl_with = xno || test x$libcurl_cv_lib_curl_usable != xyes ; then
266 # This is the IF-NO path
267 ifelse([$4],,:,[$4])
268 else
269 # This is the IF-YES path
270 ifelse([$3],,:,[$3])
271 fi
272
273 unset _libcurl_with
274 ])