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