1 # LIBGNURL_CHECK_CONFIG ([DEFAULT-ACTION], [MINIMUM-VERSION],
2 # [ACTION-IF-YES], [ACTION-IF-NO])
3 # ----------------------------------------------------------
4 # David Shaw <dshaw@jabberwocky.com> May-09-2006
6 # Checks for libgnurl. DEFAULT-ACTION is the string yes or no to
7 # specify whether to default to --with-libgnurl or --without-libgnurl.
8 # If not supplied, DEFAULT-ACTION is yes. MINIMUM-VERSION is the
9 # minimum version of libgnurl 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 # libgnurl 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-libgnurl does run ACTION-IF-NO.
16 # This macro #defines HAVE_LIBGNURL if a working libgnurl setup is
17 # found, and sets @LIBGNURL@ and @LIBGNURL_CPPFLAGS@ to the necessary
18 # values. Other useful defines are LIBGNURL_FEATURE_xxx where xxx are
19 # the various features supported by libgnurl, and LIBGNURL_PROTOCOL_yyy
20 # where yyy are the various protocols supported by libgnurl. 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 $libgnurl_feature_xxx and $libgnurl_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 # gnurl-config list (e.g. it's "HTTP" and not "http").
28 # Users may override the detected values by doing something like:
29 # LIBGNURL="-lgnurl" LIBGNURL_CPPFLAGS="-I/usr/myinclude" ./configure
31 # For the sake of sanity, this macro assumes that any libgnurl that is
32 # found is after version 7.7.2, the first version that included the
33 # gnurl-config script. Note that it is very important for people
34 # packaging binary versions of libgnurl to include this script!
35 # Without gnurl-config, we can only guess what protocols are available,
36 # or use gnurl_version_info to figure it out at runtime.
38 AC_DEFUN([LIBGNURL_CHECK_CONFIG],
40 AH_TEMPLATE([LIBGNURL_FEATURE_SSL],[Defined if libgnurl supports SSL])
41 AH_TEMPLATE([LIBGNURL_FEATURE_KRB4],[Defined if libgnurl supports KRB4])
42 AH_TEMPLATE([LIBGNURL_FEATURE_IPV6],[Defined if libgnurl supports IPv6])
43 AH_TEMPLATE([LIBGNURL_FEATURE_LIBZ],[Defined if libgnurl supports libz])
44 AH_TEMPLATE([LIBGNURL_FEATURE_ASYNCHDNS],[Defined if libgnurl supports AsynchDNS])
45 AH_TEMPLATE([LIBGNURL_FEATURE_IDN],[Defined if libgnurl supports IDN])
46 AH_TEMPLATE([LIBGNURL_FEATURE_SSPI],[Defined if libgnurl supports SSPI])
47 AH_TEMPLATE([LIBGNURL_FEATURE_NTLM],[Defined if libgnurl supports NTLM])
49 AH_TEMPLATE([LIBGNURL_PROTOCOL_HTTP],[Defined if libgnurl supports HTTP])
50 AH_TEMPLATE([LIBGNURL_PROTOCOL_HTTPS],[Defined if libgnurl supports HTTPS])
51 AH_TEMPLATE([LIBGNURL_PROTOCOL_FTP],[Defined if libgnurl supports FTP])
52 AH_TEMPLATE([LIBGNURL_PROTOCOL_FTPS],[Defined if libgnurl supports FTPS])
53 AH_TEMPLATE([LIBGNURL_PROTOCOL_FILE],[Defined if libgnurl supports FILE])
54 AH_TEMPLATE([LIBGNURL_PROTOCOL_TELNET],[Defined if libgnurl supports TELNET])
55 AH_TEMPLATE([LIBGNURL_PROTOCOL_LDAP],[Defined if libgnurl supports LDAP])
56 AH_TEMPLATE([LIBGNURL_PROTOCOL_DICT],[Defined if libgnurl supports DICT])
57 AH_TEMPLATE([LIBGNURL_PROTOCOL_TFTP],[Defined if libgnurl supports TFTP])
58 AH_TEMPLATE([LIBGNURL_PROTOCOL_RTSP],[Defined if libgnurl supports RTSP])
59 AH_TEMPLATE([LIBGNURL_PROTOCOL_POP3],[Defined if libgnurl supports POP3])
60 AH_TEMPLATE([LIBGNURL_PROTOCOL_IMAP],[Defined if libgnurl supports IMAP])
61 AH_TEMPLATE([LIBGNURL_PROTOCOL_SMTP],[Defined if libgnurl supports SMTP])
64 AC_HELP_STRING([--with-libgnurl=PREFIX],[look for the gnurl library in PREFIX/lib and headers in PREFIX/include]),
65 [_libgnurl_with=$withval],[_libgnurl_with=ifelse([$1],,[yes],[$1])])
67 if test "$_libgnurl_with" != "no" ; then
71 _libgnurl_version_parse="eval $AWK '{split(\$NF,A,\".\"); X=256*256*A[[1]]+256*A[[2]]+A[[3]]; print X;}'"
73 _libgnurl_try_link=yes
75 if test -d "$_libgnurl_with" ; then
76 LIBGNURL_CPPFLAGS="-I$withval/include"
77 _libgnurl_ldflags="-L$withval/lib"
78 AC_PATH_PROG([_libgnurl_config],[gnurl-config],[],
81 AC_PATH_PROG([_libgnurl_config],[gnurl-config],[],[$PATH])
84 if test x$_libgnurl_config != "x" ; then
85 AC_CACHE_CHECK([for the version of libgnurl],
86 [libgnurl_cv_lib_gnurl_version],
87 [libgnurl_cv_lib_gnurl_version=`$_libgnurl_config --version | $AWK '{print $[]2}'`])
89 _libgnurl_version=`echo $libgnurl_cv_lib_gnurl_version | $_libgnurl_version_parse`
90 _libgnurl_wanted=`echo ifelse([$2],,[0],[$2]) | $_libgnurl_version_parse`
92 if test $_libgnurl_wanted -gt 0 ; then
93 AC_CACHE_CHECK([for libgnurl >= version $2],
94 [libgnurl_cv_lib_version_ok],
96 if test $_libgnurl_version -ge $_libgnurl_wanted ; then
97 libgnurl_cv_lib_version_ok=yes
99 libgnurl_cv_lib_version_ok=no
104 if test $_libgnurl_wanted -eq 0 || test x$libgnurl_cv_lib_version_ok = xyes ; then
105 if test x"$LIBGNURL_CPPFLAGS" = "x" ; then
106 LIBGNURL_CPPFLAGS=`$_libgnurl_config --cflags`
108 if test x"$LIBGNURL" = "x" ; then
109 LIBGNURL=`$_libgnurl_config --libs`
111 # This is so silly, but Apple actually has a bug in their
112 # gnurl-config script. Fixed in Tiger, but there are still
113 # lots of Panther installs around.
115 powerpc-apple-darwin7*)
116 LIBGNURL=`echo $LIBGNURL | sed -e 's|-arch i386||g'`
121 # All gnurl-config scripts support --feature
122 _libgnurl_features=`$_libgnurl_config --feature`
124 # Is it modern enough to have --protocols? (7.12.4)
125 if test $_libgnurl_version -ge 461828 ; then
126 _libgnurl_protocols=`$_libgnurl_config --protocols`
129 _libgnurl_try_link=no
132 unset _libgnurl_wanted
135 if test $_libgnurl_try_link = yes ; then
137 # we didn't find gnurl-config, so let's see if the user-supplied
138 # link line (or failing that, "-lgnurl") is enough.
139 LIBGNURL=${LIBGNURL-"$_libgnurl_ldflags -lgnurl"}
141 AC_CACHE_CHECK([whether libgnurl is usable],
142 [libgnurl_cv_lib_gnurl_usable],
144 _libgnurl_save_cppflags=$CPPFLAGS
145 CPPFLAGS="$LIBGNURL_CPPFLAGS $CPPFLAGS"
146 _libgnurl_save_libs=$LIBS
147 LIBS="$LIBGNURL $LIBS"
149 AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <curl/curl.h>],[
150 /* Try and use a few common options to force a failure if we are
151 missing symbols or can't link. */
153 curl_easy_setopt(NULL,CURLOPT_URL,NULL);
155 x=CURLOPT_WRITEFUNCTION;
157 x=CURLOPT_ERRORBUFFER;
160 ])],libgnurl_cv_lib_gnurl_usable=yes,libgnurl_cv_lib_gnurl_usable=no)
162 CPPFLAGS=$_libgnurl_save_cppflags
163 LIBS=$_libgnurl_save_libs
164 unset _libgnurl_save_cppflags
165 unset _libgnurl_save_libs
168 if test $libgnurl_cv_lib_gnurl_usable = yes ; then
170 # Does gnurl_free() exist in this version of libgnurl?
171 # If not, fake it with free()
173 _libgnurl_save_cppflags=$CPPFLAGS
174 CPPFLAGS="$CPPFLAGS $LIBGNURL_CPPFLAGS"
175 _libgnurl_save_libs=$LIBS
176 LIBS="$LIBS $LIBGNURL"
178 AC_CHECK_FUNC(curl_free,,
179 AC_DEFINE(curl_free,free,
180 [Define curl_free() as free() if our version of gnurl lacks curl_free.]))
182 CPPFLAGS=$_libgnurl_save_cppflags
183 LIBS=$_libgnurl_save_libs
184 unset _libgnurl_save_cppflags
185 unset _libgnurl_save_libs
187 AC_DEFINE(HAVE_LIBGNURL,1,
188 [Define to 1 if you have a functional gnurl library.])
189 AC_SUBST(LIBGNURL_CPPFLAGS)
192 for _libgnurl_feature in $_libgnurl_features ; do
193 AC_DEFINE_UNQUOTED(AS_TR_CPP(libgnurl_feature_$_libgnurl_feature),[1])
194 eval AS_TR_SH(libgnurl_feature_$_libgnurl_feature)=yes
197 if test "x$_libgnurl_protocols" = "x" ; then
199 # We don't have --protocols, so just assume that all
200 # protocols are available
201 _libgnurl_protocols="HTTP FTP FILE TELNET LDAP DICT TFTP"
203 if test x$libgnurl_feature_SSL = xyes ; then
204 _libgnurl_protocols="$_libgnurl_protocols HTTPS"
206 # FTPS wasn't standards-compliant until version
207 # 7.11.0 (0x070b00 == 461568)
208 if test $_libgnurl_version -ge 461568; then
209 _libgnurl_protocols="$_libgnurl_protocols FTPS"
213 # RTSP, IMAP, POP3 and SMTP were added in
214 # 7.20.0 (0x071400 == 463872)
215 if test $_libgnurl_version -ge 463872; then
216 _libgnurl_protocols="$_libgnurl_protocols RTSP IMAP POP3 SMTP"
220 for _libgnurl_protocol in $_libgnurl_protocols ; do
221 AC_DEFINE_UNQUOTED(AS_TR_CPP(libgnurl_protocol_$_libgnurl_protocol),[1])
222 eval AS_TR_SH(libgnurl_protocol_$_libgnurl_protocol)=yes
226 unset LIBGNURL_CPPFLAGS
230 unset _libgnurl_try_link
231 unset _libgnurl_version_parse
232 unset _libgnurl_config
233 unset _libgnurl_feature
234 unset _libgnurl_features
235 unset _libgnurl_protocol
236 unset _libgnurl_protocols
237 unset _libgnurl_version
238 unset _libgnurl_ldflags
241 if test x$_libgnurl_with = xno || test x$libgnurl_cv_lib_gnurl_usable != xyes ; then
242 # This is the IF-NO path
245 # This is the IF-YES path