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370 lines
13 KiB
370 lines
13 KiB
# LIBCURL_CHECK_CONFIG ([DEFAULT-ACTION], [MINIMUM-VERSION],
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# [ACTION-IF-YES], [ACTION-IF-NO])
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# ----------------------------------------------------------
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# David Shaw <dshaw@jabberwocky.com> May-09-2006
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#
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# Checks for libcurl. DEFAULT-ACTION is the string yes or no to
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# specify whether to default to --with-libcurl or --without-libcurl.
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# If not supplied, DEFAULT-ACTION is yes. MINIMUM-VERSION is the
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# minimum version of libcurl to accept. Pass the version as a regular
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# version number like 7.10.1. If not supplied, any version is
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# accepted. ACTION-IF-YES is a list of shell commands to run if
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# libcurl was successfully found and passed the various tests.
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# ACTION-IF-NO is a list of shell commands that are run otherwise.
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# Note that using --without-libcurl does run ACTION-IF-NO.
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#
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# This macro #defines HAVE_LIBCURL if a working libcurl setup is
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# found, and sets @LIBCURL_LIBS@ and @LIBCURL_CFLAGS@ to the necessary
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# values. Other useful defines are LIBCURL_FEATURE_xxx where xxx are
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# the various features supported by libcurl, and LIBCURL_PROTOCOL_yyy
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# where yyy are the various protocols supported by libcurl. Both xxx
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# and yyy are capitalized. See the list of AH_TEMPLATEs at the top of
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# the macro for the complete list of possible defines. Shell
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# variables $libcurl_feature_xxx and $libcurl_protocol_yyy are also
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# defined to 'yes' for those features and protocols that were found.
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# Note that xxx and yyy keep the same capitalization as in the
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# curl-config list (e.g. it's "HTTP" and not "http").
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#
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# Users may override the detected values by doing something like:
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# LIBCURL_LIBS="-lcurl" LIBCURL_CFLAGS="-I/usr/myinclude" ./configure
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#
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# For the sake of sanity, this macro assumes that any libcurl that is
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# found is after version 7.7.2, the first version that included the
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# curl-config script. Note that it is very important for people
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# packaging binary versions of libcurl to include this script!
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# Without curl-config, we can only guess what protocols are available,
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# or use curl_version_info to figure it out at runtime.
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AC_DEFUN([LIBCURL_CHECK_CONFIG],
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[
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AH_TEMPLATE([LIBCURL_FEATURE_SSL],[Defined if libcurl supports SSL])
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AH_TEMPLATE([LIBCURL_FEATURE_KRB4],[Defined if libcurl supports KRB4])
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AH_TEMPLATE([LIBCURL_FEATURE_IPV6],[Defined if libcurl supports IPv6])
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AH_TEMPLATE([LIBCURL_FEATURE_LIBZ],[Defined if libcurl supports libz])
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AH_TEMPLATE([LIBCURL_FEATURE_ASYNCHDNS],[Defined if libcurl supports AsynchDNS])
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AH_TEMPLATE([LIBCURL_FEATURE_IDN],[Defined if libcurl supports IDN])
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AH_TEMPLATE([LIBCURL_FEATURE_SSPI],[Defined if libcurl supports SSPI])
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AH_TEMPLATE([LIBCURL_FEATURE_NTLM],[Defined if libcurl supports NTLM])
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AH_TEMPLATE([LIBCURL_PROTOCOL_HTTP],[Defined if libcurl supports HTTP])
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AH_TEMPLATE([LIBCURL_PROTOCOL_HTTPS],[Defined if libcurl supports HTTPS])
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AH_TEMPLATE([LIBCURL_PROTOCOL_FTP],[Defined if libcurl supports FTP])
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AH_TEMPLATE([LIBCURL_PROTOCOL_FTPS],[Defined if libcurl supports FTPS])
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AH_TEMPLATE([LIBCURL_PROTOCOL_FILE],[Defined if libcurl supports FILE])
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AH_TEMPLATE([LIBCURL_PROTOCOL_TELNET],[Defined if libcurl supports TELNET])
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AH_TEMPLATE([LIBCURL_PROTOCOL_LDAP],[Defined if libcurl supports LDAP])
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AH_TEMPLATE([LIBCURL_PROTOCOL_DICT],[Defined if libcurl supports DICT])
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AH_TEMPLATE([LIBCURL_PROTOCOL_TFTP],[Defined if libcurl supports TFTP])
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_libcurl_config="no"
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AC_ARG_WITH(libcurl,
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[
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If you want to use cURL library:
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AS_HELP_STRING([--with-libcurl@<:@=DIR@:>@],[use cURL package @<:@default=no@:>@, optionally specify path to curl-config])],
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[
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if test "x$withval" = "xno"; then
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want_curl="no"
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elif test "x$withval" = "xyes"; then
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want_curl="yes"
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else
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want_curl="yes"
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_libcurl_config=$withval
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fi
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],
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[want_curl=ifelse([$1],,[no],[$1])])
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if test "x$want_curl" != "xno"; then
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AC_PROG_AWK
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_libcurl_version_parse="eval $AWK '{split(\$NF,A,\".\"); X=256*256*A[[1]]+256*A[[2]]+A[[3]]; print X;}'"
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_libcurl_try_link=no
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AC_PATH_PROG([_libcurl_config], [curl-config], [])
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if test -x "$_libcurl_config"; then
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AC_CACHE_CHECK([for the version of libcurl],
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[libcurl_cv_lib_curl_version],
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[libcurl_cv_lib_curl_version=`$_libcurl_config --version | $AWK '{print $[]2}'`]
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)
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_libcurl_version=`echo $libcurl_cv_lib_curl_version | $_libcurl_version_parse`
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_libcurl_wanted=`echo ifelse([$2],,[0],[$2]) | $_libcurl_version_parse`
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if test $_libcurl_wanted -gt 0; then
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AC_CACHE_CHECK([for libcurl >= version $2],
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[libcurl_cv_lib_version_ok],[
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if test $_libcurl_version -ge $_libcurl_wanted; then
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libcurl_cv_lib_version_ok=yes
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else
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libcurl_cv_lib_version_ok=no
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fi
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]
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)
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fi
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if test $_libcurl_wanted -eq 0 || test "x$libcurl_cv_lib_version_ok" = "xyes"; then
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if test "x$LIBCURL_CFLAGS" = "x"; then
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LIBCURL_CFLAGS=`$_libcurl_config --cflags`
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fi
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if test "x$LIBCURL_LIBS" = "x"; then
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_curl_dir_lib=`$_libcurl_config --prefix`
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_curl_dir_lib="$_curl_dir_lib/lib"
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_full_libcurl_libs=`$_libcurl_config --libs`
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for i in $_full_libcurl_libs; do
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case $i in
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-L*)
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LIBCURL_LDFLAGS="$LIBCURL_LDFLAGS $i"
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;;
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-R*)
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LIBCURL_LDFLAGS="$LIBCURL_LDFLAGS -Wl,$i"
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;;
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-lcurl)
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if test "x$enable_static_libs" = "xyes" -a "x$static_linking_support" = "xno"; then
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i="$_curl_dir_lib/libcurl.a"
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elif test "x$enable_static_libs" = "xyes"; then
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i="${static_linking_support}static $i ${static_linking_support}dynamic"
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fi
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LIBCURL_LIBS="$LIBCURL_LIBS $i"
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;;
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-l*)
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if test "x$enable_static_libs" = "xyes"; then
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_lib_name=`echo "$i" | cut -b3-`
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test -f "$_curl_dir_lib/lib$_lib_name.a" && i="$_curl_dir_lib/lib$_lib_name.a"
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fi
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LIBCURL_LIBS="$LIBCURL_LIBS $i"
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;;
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esac
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done
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_save_curl_cflags="$CFLAGS"
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_save_curl_ldflags="$LDFLAGS"
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_save_curl_libs="$LIBS"
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CFLAGS="$CFLAGS $LIBCURL_CFLAGS"
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LDFLAGS="$LDFLAGS $LIBCURL_LDFLAGS"
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if test "x$enable_static_libs" = "xyes"; then
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test "x$want_openssl" = "xyes" && CFLAGS="$OPENSSL_CFLAGS $CFLAGS"
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test "x$want_openssl" = "xyes" && LDFLAGS="$OPENSSL_LDFLAGS $LDFLAGS"
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test "x$want_ldap" = "xyes" && CFLAGS="$LDAP_CPPFLAGS $CFLAGS"
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test "x$want_ldap" = "xyes" && LDFLAGS="$LDAP_LDFLAGS $LDFLAGS"
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fi
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if test "x$enable_static" = "xyes" -o "x$enable_static_libs" = "xyes"; then
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_full_libcurl_libs=`$_libcurl_config --static-libs`
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if test "x$enable_static_libs" = "xyes" -a -z "$LIBPTHREAD_LIBS"; then
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LIBPTHREAD_CHECK_CONFIG([no])
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if test "x$found_libpthread" != "xyes"; then
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AC_MSG_ERROR([Unable to use libpthread (libpthread check failed)])
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fi
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_full_libcurl_libs="$LIBPTHREAD_LIBS $_full_libcurl_libs"
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fi
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for i in $_full_libcurl_libs; do
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case $i in
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-lcurl)
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;;
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-l*)
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_lib_i=$i
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_lib_name=`echo "$i" | cut -b3-`
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AC_CHECK_LIB($_lib_name , main,[
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if test "x$enable_static_libs" = "xyes"; then
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case $i in
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-lssl|-lcrypto)
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test "x$want_openssl" = "xyes" && i="$OPENSSL_LIBS"
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;;
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-lldap|-lldap_r|-llber)
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test "x$want_ldap" = "xyes" && i="$LDAP_LIBS"
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;;
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-l*)
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test -f "$_curl_dir_lib/lib$_lib_name.a" && i="$_curl_dir_lib/lib$_lib_name.a"
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;;
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esac
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fi
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test -z "${LIBCURL_LIBS##*$_lib_i*}" && LIBCURL_LIBS=`echo "$LIBCURL_LIBS"|sed "s|$_lib_i||g"`
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test -z "${LIBCURL_LIBS##*$i*}" || LIBCURL_LIBS="$LIBCURL_LIBS $i"
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],[
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AC_MSG_ERROR([static library $_lib_name required for linking libcurl not found])
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])
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;;
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-framework|CoreFoundation|Security)
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LIBCURL_LIBS="$LIBCURL_LIBS $i"
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;;
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esac
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done
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fi # "x$enable_static" or "x$enable_static_libs"
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LIBS="$LIBS $LIBCURL_LIBS"
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AC_CHECK_LIB(curl, main, , [AC_MSG_ERROR([libcurl library not found])])
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CFLAGS="$_save_curl_cflags"
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LDFLAGS="$_save_curl_ldflags"
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LIBS="$_save_curl_libs"
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unset _save_curl_cflags
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unset _save_curl_ldflags
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unset _save_curl_libs
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# This is so silly, but Apple actually has a bug in their
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# curl-config script. Fixed in Tiger, but there are still
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# lots of Panther installs around.
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case "${host}" in
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powerpc-apple-darwin7*)
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LIBCURL_LIBS=`echo $LIBCURL_LIBS | sed -e 's|-arch i386||g'`
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;;
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esac
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fi # "x$LIBCURL_LIBS" = "x"
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# All curl-config scripts support --feature
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_libcurl_features=`$_libcurl_config --feature`
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# Is it modern enough to have --protocols? (7.12.4)
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if test $_libcurl_version -ge 461828; then
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_libcurl_protocols=`$_libcurl_config --protocols`
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fi
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_libcurl_try_link=yes
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fi # $_libcurl_wanted -eq 0 || "x$libcurl_cv_lib_version_ok" = "xyes"
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unset _libcurl_wanted
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fi # -x "$_libcurl_config"
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if test "x$_libcurl_try_link" = "xyes"; then
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# we didn't find curl-config, so let's see if the user-supplied
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# link line (or failing that, "-lcurl") is enough.
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LIBCURL_LIBS=${LIBCURL_LIBS-"$_libcurl_libs -lcurl"}
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AC_CACHE_CHECK([whether libcurl is usable],
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[libcurl_cv_lib_curl_usable],[
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_save_curl_libs="${LIBS}"
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_save_curl_ldflags="${LDFLAGS}"
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_save_curl_cflags="${CFLAGS}"
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LIBS="${LIBS} ${LIBCURL_LIBS}"
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LDFLAGS="${LDFLAGS} ${LIBCURL_LDFLAGS}"
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CFLAGS="${CFLAGS} ${LIBCURL_CFLAGS}"
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if test "x$enable_static_libs" = "xyes"; then
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test "x$want_openssl" = "xyes" && CFLAGS=" $OPENSSL_CFLAGS $CFLAGS"
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test "x$want_openssl" = "xyes" && LDFLAGS="$OPENSSL_LDFLAGS $LDFLAGS"
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test "x$want_ldap" = "xyes" && CFLAGS="$LDAP_CPPFLAGS $CFLAGS"
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test "x$want_ldap" = "xyes" && LDFLAGS="$LDAP_LDFLAGS $LDFLAGS"
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fi
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AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <curl/curl.h>
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#ifndef NULL
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#define NULL (void *)0
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#endif],[
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/* Try and use a few common options to force a failure if we are
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missing symbols or can't link. */
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int x;
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curl_easy_setopt(NULL,CURLOPT_URL,NULL);
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x=CURL_ERROR_SIZE;
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x=CURLOPT_WRITEFUNCTION;
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x=CURLOPT_FILE;
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x=CURLOPT_ERRORBUFFER;
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x=CURLOPT_STDERR;
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x=CURLOPT_VERBOSE;
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])],libcurl_cv_lib_curl_usable=yes,libcurl_cv_lib_curl_usable=no)
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LIBS="${_save_curl_libs}"
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LDFLAGS="${_save_curl_ldflags}"
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CFLAGS="${_save_curl_cflags}"
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unset _save_curl_libs
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unset _save_curl_ldflags
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unset _save_curl_cflags
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])
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if test "x$libcurl_cv_lib_curl_usable" = "xno"; then
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link_mode="dynamic"
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if test "x$enable_static" = "xyes"; then
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link_mode="static"
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fi
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AC_MSG_ERROR([libcurl is not available for ${link_mode} linking])
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fi
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# Does curl_free() exist in this version of libcurl?
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# If not, fake it with free()
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_save_curl_libs="${LIBS}"
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_save_curl_ldflags="${LDFLAGS}"
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_save_curl_cflags="${CFLAGS}"
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LIBS="${LIBS} ${LIBCURL_LIBS}"
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LDFLAGS="${LDFLAGS} ${LIBCURL_LDFLAGS}"
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CFLAGS="${CFLAGS} ${LIBCURL_CFLAGS}"
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AC_CHECK_FUNC(curl_free,,
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AC_DEFINE(curl_free,free,
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[Define curl_free() as free() if our version of curl lacks curl_free.]))
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AC_CHECK_FUNC(curl_easy_escape,
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AC_DEFINE(HAVE_FUNCTION_CURL_EASY_ESCAPE,1,
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[Define to 1 if function 'curl_easy_escape' exists.]))
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LIBS="${_save_curl_libs}"
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LDFLAGS="${_save_curl_ldflags}"
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CFLAGS="${_save_curl_cflags}"
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unset _save_curl_libs
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unset _save_curl_ldflags
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unset _save_curl_cflags
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AC_DEFINE(HAVE_LIBCURL,1,
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[Define to 1 if you have a functional curl library.])
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AC_SUBST(LIBCURL_CFLAGS)
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AC_SUBST(LIBCURL_LDFLAGS)
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AC_SUBST(LIBCURL_LIBS)
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found_curl="yes"
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for _libcurl_feature in $_libcurl_features ; do
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AC_DEFINE_UNQUOTED(AS_TR_CPP(libcurl_feature_$_libcurl_feature),[1])
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eval AS_TR_SH(libcurl_feature_$_libcurl_feature)=yes
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done
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if test "x$_libcurl_protocols" = "x"; then
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# We don't have --protocols, so just assume that all
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# protocols are available
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_libcurl_protocols="HTTP FTP FILE TELNET LDAP DICT"
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if test "x$libcurl_feature_SSL" = "xyes"; then
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_libcurl_protocols="$_libcurl_protocols HTTPS"
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# FTPS wasn't standards-compliant until version
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# 7.11.0
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if test $_libcurl_version -ge 461568; then
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_libcurl_protocols="$_libcurl_protocols FTPS"
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fi
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fi
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fi
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for _libcurl_protocol in $_libcurl_protocols ; do
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AC_DEFINE_UNQUOTED(AS_TR_CPP(libcurl_protocol_$_libcurl_protocol),[1])
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eval AS_TR_SH(libcurl_protocol_$_libcurl_protocol)=yes
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done
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else
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unset LIBCURL_LIBS
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unset LIBCURL_CFLAGS
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fi # "x$_libcurl_try_link" = "xyes"
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unset _libcurl_try_link
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unset _libcurl_version_parse
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unset _libcurl_config
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unset _libcurl_feature
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unset _libcurl_features
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unset _libcurl_protocol
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unset _libcurl_protocols
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unset _libcurl_version
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unset _libcurl_libs
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fi # "x$want_curl" != "xno"
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if test "x$want_curl" = "xno" || test "x$libcurl_cv_lib_curl_usable" != "xyes"; then
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# This is the IF-NO path
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ifelse([$4],,:,[$4])
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else
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# This is the IF-YES path
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ifelse([$3],,:,[$3])
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fi
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])dnl
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