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authorChristian Grothoff <christian@grothoff.org>2014-09-05 09:19:29 +0000
committerChristian Grothoff <christian@grothoff.org>2014-09-05 09:19:29 +0000
commit99925202bb2f9f153b407461a6e89e2836218166 (patch)
tree028c359ce23ec1d84cb123815feb43b57307a75c /m4
parent202967b94a0139fad4924c4ba365b45b3df12d34 (diff)
downloadgnunet-99925202bb2f9f153b407461a6e89e2836218166.tar.gz
gnunet-99925202bb2f9f153b407461a6e89e2836218166.zip
libcurl.m4 added
Diffstat (limited to 'm4')
-rw-r--r--m4/Makefile.am2
-rw-r--r--m4/libcurl.m4251
2 files changed, 253 insertions, 0 deletions
diff --git a/m4/Makefile.am b/m4/Makefile.am
index 0e8179e92..867b81594 100644
--- a/m4/Makefile.am
+++ b/m4/Makefile.am
@@ -18,6 +18,8 @@ inttypes-pri.m4\
18isc-posix.m4\ 18isc-posix.m4\
19lcmessage.m4\ 19lcmessage.m4\
20libgcrypt.m4\ 20libgcrypt.m4\
21libgnurl.m4\
22libcurl.m4\
21lib-ld.m4\ 23lib-ld.m4\
22lib-link.m4\ 24lib-link.m4\
23lib-prefix.m4\ 25lib-prefix.m4\
diff --git a/m4/libcurl.m4 b/m4/libcurl.m4
new file mode 100644
index 000000000..a84077a5e
--- /dev/null
+++ b/m4/libcurl.m4
@@ -0,0 +1,251 @@
1# LIBCURL_CHECK_CONFIG ([DEFAULT-ACTION], [MINIMUM-VERSION],
2# [ACTION-IF-YES], [ACTION-IF-NO])
3# ----------------------------------------------------------
4# David Shaw <dshaw@jabberwocky.com> May-09-2006
5#
6# Checks for libcurl. DEFAULT-ACTION is the string yes or no to
7# specify whether to default to --with-libcurl or --without-libcurl.
8# If not supplied, DEFAULT-ACTION is yes. MINIMUM-VERSION is the
9# minimum version of libcurl to accept. Pass the version as a regular
10# version number like 7.10.1. If not supplied, any version is
11# accepted. ACTION-IF-YES is a list of shell commands to run if
12# libcurl was successfully found and passed the various tests.
13# ACTION-IF-NO is a list of shell commands that are run otherwise.
14# Note that using --without-libcurl does run ACTION-IF-NO.
15#
16# This macro #defines HAVE_LIBCURL if a working libcurl setup is
17# found, and sets @LIBCURL@ and @LIBCURL_CPPFLAGS@ to the necessary
18# values. Other useful defines are LIBCURL_FEATURE_xxx where xxx are
19# the various features supported by libcurl, and LIBCURL_PROTOCOL_yyy
20# where yyy are the various protocols supported by libcurl. Both xxx
21# and yyy are capitalized. See the list of AH_TEMPLATEs at the top of
22# the macro for the complete list of possible defines. Shell
23# variables $libcurl_feature_xxx and $libcurl_protocol_yyy are also
24# defined to 'yes' for those features and protocols that were found.
25# Note that xxx and yyy keep the same capitalization as in the
26# curl-config list (e.g. it's "HTTP" and not "http").
27#
28# Users may override the detected values by doing something like:
29# LIBCURL="-lcurl" LIBCURL_CPPFLAGS="-I/usr/myinclude" ./configure
30#
31# For the sake of sanity, this macro assumes that any libcurl that is
32# found is after version 7.7.2, the first version that included the
33# curl-config script. Note that it is very important for people
34# packaging binary versions of libcurl to include this script!
35# Without curl-config, we can only guess what protocols are available,
36# or use curl_version_info to figure it out at runtime.
37
38AC_DEFUN([LIBCURL_CHECK_CONFIG],
39[
40 AH_TEMPLATE([LIBCURL_FEATURE_SSL],[Defined if libcurl supports SSL])
41 AH_TEMPLATE([LIBCURL_FEATURE_KRB4],[Defined if libcurl supports KRB4])
42 AH_TEMPLATE([LIBCURL_FEATURE_IPV6],[Defined if libcurl supports IPv6])
43 AH_TEMPLATE([LIBCURL_FEATURE_LIBZ],[Defined if libcurl supports libz])
44 AH_TEMPLATE([LIBCURL_FEATURE_ASYNCHDNS],[Defined if libcurl supports AsynchDNS])
45 AH_TEMPLATE([LIBCURL_FEATURE_IDN],[Defined if libcurl supports IDN])
46 AH_TEMPLATE([LIBCURL_FEATURE_SSPI],[Defined if libcurl supports SSPI])
47 AH_TEMPLATE([LIBCURL_FEATURE_NTLM],[Defined if libcurl supports NTLM])
48
49 AH_TEMPLATE([LIBCURL_PROTOCOL_HTTP],[Defined if libcurl supports HTTP])
50 AH_TEMPLATE([LIBCURL_PROTOCOL_HTTPS],[Defined if libcurl supports HTTPS])
51 AH_TEMPLATE([LIBCURL_PROTOCOL_FTP],[Defined if libcurl supports FTP])
52 AH_TEMPLATE([LIBCURL_PROTOCOL_FTPS],[Defined if libcurl supports FTPS])
53 AH_TEMPLATE([LIBCURL_PROTOCOL_FILE],[Defined if libcurl supports FILE])
54 AH_TEMPLATE([LIBCURL_PROTOCOL_TELNET],[Defined if libcurl supports TELNET])
55 AH_TEMPLATE([LIBCURL_PROTOCOL_LDAP],[Defined if libcurl supports LDAP])
56 AH_TEMPLATE([LIBCURL_PROTOCOL_DICT],[Defined if libcurl supports DICT])
57 AH_TEMPLATE([LIBCURL_PROTOCOL_TFTP],[Defined if libcurl supports TFTP])
58 AH_TEMPLATE([LIBCURL_PROTOCOL_RTSP],[Defined if libcurl supports RTSP])
59 AH_TEMPLATE([LIBCURL_PROTOCOL_POP3],[Defined if libcurl supports POP3])
60 AH_TEMPLATE([LIBCURL_PROTOCOL_IMAP],[Defined if libcurl supports IMAP])
61 AH_TEMPLATE([LIBCURL_PROTOCOL_SMTP],[Defined if libcurl supports SMTP])
62
63 AC_ARG_WITH(libcurl,
64 AC_HELP_STRING([--with-libcurl=PREFIX],[look for the curl library in PREFIX/lib and headers in PREFIX/include]),
65 [_libcurl_with=$withval],[_libcurl_with=ifelse([$1],,[yes],[$1])])
66
67 if test "$_libcurl_with" != "no" ; then
68
69 AC_PROG_AWK
70
71 _libcurl_version_parse="eval $AWK '{split(\$NF,A,\".\"); X=256*256*A[[1]]+256*A[[2]]+A[[3]]; print X;}'"
72
73 _libcurl_try_link=yes
74
75 if test -d "$_libcurl_with" ; then
76 LIBCURL_CPPFLAGS="-I$withval/include"
77 _libcurl_ldflags="-L$withval/lib"
78 AC_PATH_PROG([_libcurl_config],[curl-config],[],
79 ["$withval/bin"])
80 else
81 AC_PATH_PROG([_libcurl_config],[curl-config],[],[$PATH])
82 fi
83
84 if test x$_libcurl_config != "x" ; then
85 AC_CACHE_CHECK([for the version of libcurl],
86 [libcurl_cv_lib_curl_version],
87 [libcurl_cv_lib_curl_version=`$_libcurl_config --version | $AWK '{print $[]2}'`])
88
89 _libcurl_version=`echo $libcurl_cv_lib_curl_version | $_libcurl_version_parse`
90 _libcurl_wanted=`echo ifelse([$2],,[0],[$2]) | $_libcurl_version_parse`
91
92 if test $_libcurl_wanted -gt 0 ; then
93 AC_CACHE_CHECK([for libcurl >= version $2],
94 [libcurl_cv_lib_version_ok],
95 [
96 if test $_libcurl_version -ge $_libcurl_wanted ; then
97 libcurl_cv_lib_version_ok=yes
98 else
99 libcurl_cv_lib_version_ok=no
100 fi
101 ])
102 fi
103
104 if test $_libcurl_wanted -eq 0 || test x$libcurl_cv_lib_version_ok = xyes ; then
105 if test x"$LIBCURL_CPPFLAGS" = "x" ; then
106 LIBCURL_CPPFLAGS=`$_libcurl_config --cflags`
107 fi
108 if test x"$LIBCURL" = "x" ; then
109 LIBCURL=`$_libcurl_config --libs`
110
111 # This is so silly, but Apple actually has a bug in their
112 # curl-config script. Fixed in Tiger, but there are still
113 # lots of Panther installs around.
114 case "${host}" in
115 powerpc-apple-darwin7*)
116 LIBCURL=`echo $LIBCURL | sed -e 's|-arch i386||g'`
117 ;;
118 esac
119 fi
120
121 # All curl-config scripts support --feature
122 _libcurl_features=`$_libcurl_config --feature`
123
124 # Is it modern enough to have --protocols? (7.12.4)
125 if test $_libcurl_version -ge 461828 ; then
126 _libcurl_protocols=`$_libcurl_config --protocols`
127 fi
128 else
129 _libcurl_try_link=no
130 fi
131
132 unset _libcurl_wanted
133 fi
134
135 if test $_libcurl_try_link = yes ; then
136
137 # we didn't find curl-config, so let's see if the user-supplied
138 # link line (or failing that, "-lcurl") is enough.
139 LIBCURL=${LIBCURL-"$_libcurl_ldflags -lcurl"}
140
141 AC_CACHE_CHECK([whether libcurl is usable],
142 [libcurl_cv_lib_curl_usable],
143 [
144 _libcurl_save_cppflags=$CPPFLAGS
145 CPPFLAGS="$LIBCURL_CPPFLAGS $CPPFLAGS"
146 _libcurl_save_libs=$LIBS
147 LIBS="$LIBCURL $LIBS"
148
149 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <curl/curl.h>]],[[
150/* Try and use a few common options to force a failure if we are
151 missing symbols or can't link. */
152int x;
153curl_easy_setopt(NULL,CURLOPT_URL,NULL);
154x=CURL_ERROR_SIZE;
155x=CURLOPT_WRITEFUNCTION;
156x=CURLOPT_WRITEDATA;
157x=CURLOPT_ERRORBUFFER;
158x=CURLOPT_STDERR;
159x=CURLOPT_VERBOSE;
160if (x) ;
161]])],libcurl_cv_lib_curl_usable=yes,libcurl_cv_lib_curl_usable=no)
162
163 CPPFLAGS=$_libcurl_save_cppflags
164 LIBS=$_libcurl_save_libs
165 unset _libcurl_save_cppflags
166 unset _libcurl_save_libs
167 ])
168
169 if test $libcurl_cv_lib_curl_usable = yes ; then
170
171 # Does curl_free() exist in this version of libcurl?
172 # If not, fake it with free()
173
174 _libcurl_save_cppflags=$CPPFLAGS
175 CPPFLAGS="$CPPFLAGS $LIBCURL_CPPFLAGS"
176 _libcurl_save_libs=$LIBS
177 LIBS="$LIBS $LIBCURL"
178
179 AC_CHECK_FUNC(curl_free,,
180 AC_DEFINE(curl_free,free,
181 [Define curl_free() as free() if our version of curl lacks curl_free.]))
182
183 CPPFLAGS=$_libcurl_save_cppflags
184 LIBS=$_libcurl_save_libs
185 unset _libcurl_save_cppflags
186 unset _libcurl_save_libs
187
188 AC_DEFINE(HAVE_LIBCURL,1,
189 [Define to 1 if you have a functional curl library.])
190 AC_SUBST(LIBCURL_CPPFLAGS)
191 AC_SUBST(LIBCURL)
192
193 for _libcurl_feature in $_libcurl_features ; do
194 AC_DEFINE_UNQUOTED(AS_TR_CPP(libcurl_feature_$_libcurl_feature),[1])
195 eval AS_TR_SH(libcurl_feature_$_libcurl_feature)=yes
196 done
197
198 if test "x$_libcurl_protocols" = "x" ; then
199
200 # We don't have --protocols, so just assume that all
201 # protocols are available
202 _libcurl_protocols="HTTP FTP FILE TELNET LDAP DICT TFTP"
203
204 if test x$libcurl_feature_SSL = xyes ; then
205 _libcurl_protocols="$_libcurl_protocols HTTPS"
206
207 # FTPS wasn't standards-compliant until version
208 # 7.11.0 (0x070b00 == 461568)
209 if test $_libcurl_version -ge 461568; then
210 _libcurl_protocols="$_libcurl_protocols FTPS"
211 fi
212 fi
213
214 # RTSP, IMAP, POP3 and SMTP were added in
215 # 7.20.0 (0x071400 == 463872)
216 if test $_libcurl_version -ge 463872; then
217 _libcurl_protocols="$_libcurl_protocols RTSP IMAP POP3 SMTP"
218 fi
219 fi
220
221 for _libcurl_protocol in $_libcurl_protocols ; do
222 AC_DEFINE_UNQUOTED(AS_TR_CPP(libcurl_protocol_$_libcurl_protocol),[1])
223 eval AS_TR_SH(libcurl_protocol_$_libcurl_protocol)=yes
224 done
225 else
226 unset LIBCURL
227 unset LIBCURL_CPPFLAGS
228 fi
229 fi
230
231 unset _libcurl_try_link
232 unset _libcurl_version_parse
233 unset _libcurl_config
234 unset _libcurl_feature
235 unset _libcurl_features
236 unset _libcurl_protocol
237 unset _libcurl_protocols
238 unset _libcurl_version
239 unset _libcurl_ldflags
240 fi
241
242 if test x$_libcurl_with = xno || test x$libcurl_cv_lib_curl_usable != xyes ; then
243 # This is the IF-NO path
244 ifelse([$4],,:,[$4])
245 else
246 # This is the IF-YES path
247 ifelse([$3],,:,[$3])
248 fi
249
250 unset _libcurl_with
251])dnl