boinc/m4/libcurl.m4

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# LIBCURL_CHECK_CONFIG ([DEFAULT-ACTION], [MINIMUM-VERSION],
# [ACTION-IF-YES], [ACTION-IF-NO])
# ----------------------------------------------------------
# David Shaw <dshaw@jabberwocky.com> Jun-21-2005
#
# Checks for libcurl. DEFAULT-ACTION is the string yes or no to
# specify whether to default to --with-libcurl or --without-libcurl.
# If not supplied, DEFAULT-ACTION is yes. MINIMUM-VERSION is the
# minimum version of libcurl to accept. Pass the version as a regular
# version number like 7.10.1. If not supplied, any version is
# accepted. ACTION-IF-YES is a list of shell commands to run if
# libcurl was successfully found and passed the various tests.
# ACTION-IF-NO is a list of shell commands that are run otherwise.
# Note that using --without-libcurl does run ACTION-IF-NO.
#
# This macro defines HAVE_LIBCURL if a working libcurl setup is found,
# and sets @LIBCURL@ and @LIBCURL_CPPFLAGS@ to the necessary values.
# Other useful defines are LIBCURL_FEATURE_xxx where xxx are the
# various features supported by libcurl, and LIBCURL_PROTOCOL_yyy
# where yyy are the various protocols supported by libcurl. Both xxx
# and yyy are capitalized. See the list of AH_TEMPLATEs at the top of
# the macro for the complete list of possible defines. Shell
# variables $libcurl_feature_xxx and $libcurl_protocol_yyy are also
# defined to 'yes' for those features and protocols that were found.
# Note that xxx and yyy keep the same capitalization as in the
# curl-config list (e.g. it's "HTTP" and not "http").
#
# Users may override the detected values by doing something like:
# LIBCURL="-lcurl" LIBCURL_CPPFLAGS="-I/usr/myinclude" ./configure
#
# For the sake of sanity, this macro assumes that any libcurl that is
# found is after version 7.7.2, the first version that included the
# curl-config script. Note that it is very important for people
# packaging binary versions of libcurl to include this script!
# Without curl-config, we can only guess what protocols are available.
AC_DEFUN([LIBCURL_CHECK_CONFIG],
[
AH_TEMPLATE([LIBCURL_FEATURE_SSL],[Defined if libcurl supports SSL])
AH_TEMPLATE([LIBCURL_FEATURE_KRB4],[Defined if libcurl supports KRB4])
AH_TEMPLATE([LIBCURL_FEATURE_IPV6],[Defined if libcurl supports IPv6])
AH_TEMPLATE([LIBCURL_FEATURE_LIBZ],[Defined if libcurl supports libz])
AH_TEMPLATE([LIBCURL_FEATURE_ASYNCHDNS],[Defined if libcurl supports AsynchDNS])
AH_TEMPLATE([LIBCURL_PROTOCOL_HTTP],[Defined if libcurl supports HTTP])
AH_TEMPLATE([LIBCURL_PROTOCOL_HTTPS],[Defined if libcurl supports HTTPS])
AH_TEMPLATE([LIBCURL_PROTOCOL_FTP],[Defined if libcurl supports FTP])
AH_TEMPLATE([LIBCURL_PROTOCOL_FTPS],[Defined if libcurl supports FTPS])
AH_TEMPLATE([LIBCURL_PROTOCOL_GOPHER],[Defined if libcurl supports GOPHER])
AH_TEMPLATE([LIBCURL_PROTOCOL_FILE],[Defined if libcurl supports FILE])
AH_TEMPLATE([LIBCURL_PROTOCOL_TELNET],[Defined if libcurl supports TELNET])
AH_TEMPLATE([LIBCURL_PROTOCOL_LDAP],[Defined if libcurl supports LDAP])
AH_TEMPLATE([LIBCURL_PROTOCOL_DICT],[Defined if libcurl supports DICT])
AC_ARG_WITH(libcurl,
AC_HELP_STRING([--with-libcurl=DIR],[look for the curl library in DIR]),
[_libcurl_with=$withval],[_libcurl_with=ifelse([$1],,[yes],[$1])])
if test "$_libcurl_with" != "no" ; then
AC_PROG_AWK
_libcurl_version_parse="eval $AWK '{split(\$NF,A,\".\"); X=256*256*A[[1]]+256*A[[2]]+A[[3]]; print X;}'"
_libcurl_try_link=yes
if test -d "$_libcurl_with" ; then
CPPFLAGS="${CPPFLAGS} -I$withval/include"
LDFLAGS="${LDFLAGS} -L$withval/lib"
PATH="${withval%/}/bin:$PATH"
fi
AC_PATH_PROG([_libcurl_pc])
if test x$_libcurl_pc != "x" ; then
AC_CACHE_CHECK([for the version of libcurl],
[libcurl_cv_lib_curl_version],
[libcurl_cv_lib_curl_version=`pkg-config $_libcurl_pc --modversion`])
_libcurl_version=`echo $libcurl_cv_lib_curl_version | $_libcurl_version_parse`
_libcurl_wanted=`echo ifelse([$2],,[0],[$2]) | $_libcurl_version_parse`
if test $_libcurl_wanted -gt 0 ; then
AC_CACHE_CHECK([for libcurl >= version $2],
[libcurl_cv_lib_version_ok],
[
if test $_libcurl_version -ge $_libcurl_wanted ; then
libcurl_cv_lib_version_ok=yes
else
libcurl_cv_lib_version_ok=no
fi
])
fi
if test $_libcurl_wanted -eq 0 || test x$libcurl_cv_lib_version_ok = xyes ; then
if test x"$LIBCURL_CPPFLAGS" = "x" ; then
LIBCURL_CPPFLAGS=`pkg-config $_libcurl_pc --cflags`
fi
if test x"$LIBCURL" = "x" ; then
if $(pkg-config $_libcurl_pc --static 2>&1 > /dev/null) ; then
LIBCURL="`pkg-config $_libcurl_pc --static`"
fi
fi
if test x"$LIBCURL" = "x" ; then
LIBCURL="`pkg-config $_libcurl_pc --libs`"
if test "x`echo \""$LIBCURL"\" | grep ssl`" = x ; then
LIBCURL="${LIBCURL} ${SSL_LIBS}"
fi
# fix cannot find -lssl
if test "x`echo \""$SSL_LIBS"\" | grep '\-L/'`" != 'x' ; then
LIBCURL="${LIBCURL} ${SSL_LIBS}"
fi
# This is so silly, but Apple actually has a bug in their
# curl-config script. Fixed in Tiger, but there are still
# lots of Panther installs around.
case "${host}" in
powerpc-apple-darwin7*)
LIBCURL=`echo $LIBCURL | sed -e 's|-arch i386||g'`
;;
armv6-*)
LIBCURL=`echo $LIBCURL -latomic`
;;
esac
fi
# All curl-config scripts support --feature
_libcurl_features=`pkg-config $_libcurl_pc --variable=supported_features`
# Is it modern enough to have --protocols? (7.12.4)
if test $_libcurl_version -ge 461828 ; then
_libcurl_protocols=`pkg-config $_libcurl_pc --variable=supported_protocols`
fi
else
_libcurl_try_link=no
fi
unset _libcurl_wanted
fi
AC_PATH_PROG([_libcurl_config],[curl-config])
if test x$_libcurl_config != "x" ; then
AC_CACHE_CHECK([for the version of libcurl],
[libcurl_cv_lib_curl_version],
[libcurl_cv_lib_curl_version=`$_libcurl_config --version | $AWK '{print $[]2}'`])
_libcurl_version=`echo $libcurl_cv_lib_curl_version | $_libcurl_version_parse`
_libcurl_wanted=`echo ifelse([$2],,[0],[$2]) | $_libcurl_version_parse`
if test $_libcurl_wanted -gt 0 ; then
AC_CACHE_CHECK([for libcurl >= version $2],
[libcurl_cv_lib_version_ok],
[
if test $_libcurl_version -ge $_libcurl_wanted ; then
libcurl_cv_lib_version_ok=yes
else
libcurl_cv_lib_version_ok=no
fi
])
fi
if test $_libcurl_wanted -eq 0 || test x$libcurl_cv_lib_version_ok = xyes ; then
if test x"$LIBCURL_CPPFLAGS" = "x" ; then
LIBCURL_CPPFLAGS=`$_libcurl_config --cflags`
fi
if test x"$LIBCURL" = "x" ; then
if test "x${disable_static_linkage}" = "xno" ; then
if $_libcurl_config --static-libs 2>&1 > /dev/null ; then
LIBCURL="`$_libcurl_config --static-libs`"
fi
fi
fi
if test x"$LIBCURL" = "x" ; then
LIBCURL="`$_libcurl_config --libs`"
if test "x`echo \""$LIBCURL"\" | grep ssl`" = x ; then
LIBCURL="${LIBCURL} ${SSL_LIBS}"
fi
# fix cannot find -lssl
if test "x`echo \""$SSL_LIBS"\" | grep '\-L/'`" != 'x' ; then
LIBCURL="${LIBCURL} ${SSL_LIBS}"
fi
# This is so silly, but Apple actually has a bug in their
# curl-config script. Fixed in Tiger, but there are still
# lots of Panther installs around.
case "${host}" in
powerpc-apple-darwin7*)
LIBCURL=`echo $LIBCURL | sed -e 's|-arch i386||g'`
;;
esac
fi
# All curl-config scripts support --feature
_libcurl_features=`$_libcurl_config --feature`
# Is it modern enough to have --protocols? (7.12.4)
if test $_libcurl_version -ge 461828 ; then
_libcurl_protocols=`$_libcurl_config --protocols`
fi
else
_libcurl_try_link=no
fi
unset _libcurl_wanted
fi
# do we need the ldap libraries?
if test "x${_libldap_with}" = "x" -a \
"x`echo $_libcurl_protocols | grep LDAP`" != x; then
_libldap_with=yes
BOINC_CHECK_LIB_WITH([ldap],[ldap_initialize],[LIBCURL])
else
_libldap_with=no
fi
# some curl configs have the ber and ldap libraries in the wrong order,
# so lets add -lber after -lldap.
if test "x`echo $LIBCURL | grep ldap`" != "x" -a \
"x`echo $LIBCURL | grep lber`" != "x" ; then
AC_CHECK_LIB([lber],[ber_scanf],
LIBCURL="`echo $LIBCURL | sed -e 's/ldap /ldap -llber /'`"
)
fi
BOINC_CHECK_LIB_WITH([gnutls],[gnutls_cipher_get],[LIBCURL])
BOINC_CHECK_LIB_WITH([sasl2],[sasl_dispose],[LIBCURL])
BOINC_CHECK_LIB_WITH([gssglue],[gss_wrap],[LIBCURL])
if test "${_lib_with}" = yes ; then
LIBCURL="`echo $LIBCURL | sed -e 's/-lgssapi_krb5 / /g'`"
fi
BOINC_CHECK_LIB_WITH([gssapi_krb5],[gss_wrap],[LIBCURL])
if test "${_lib_with}" = yes ; then
LIBCURL="`echo $LIBCURL | sed -e 's/-lgssglue / /g'`"
fi
BOINC_CHECK_LIB_WITH([gss],[gss_wrap],[LIBCURL])
if test $_libcurl_try_link = yes ; then
# we didn't find curl-config, so let's see if the user-supplied
# link line (or failing that, "-lcurl") is enough.
LIBCURL=${LIBCURL-"-lcurl"}
AC_CACHE_CHECK([whether libcurl is usable],
[libcurl_cv_lib_curl_usable],
[
_libcurl_save_cppflags=$CPPFLAGS
CPPFLAGS="$CPPFLAGS $LIBCURL_CPPFLAGS"
_libcurl_save_libs=$LIBS
LIBS="$LIBS $LIBCURL"
AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <curl/curl.h>],[
/* Try and use a few common options to force a failure if we are
missing symbols or can't link. */
int x;
curl_easy_setopt(NULL,CURLOPT_URL,NULL);
x=CURL_ERROR_SIZE;
x=CURLOPT_WRITEFUNCTION;
x=CURLOPT_FILE;
x=CURLOPT_ERRORBUFFER;
x=CURLOPT_STDERR;
x=CURLOPT_VERBOSE;
])],libcurl_cv_lib_curl_usable=yes,libcurl_cv_lib_curl_usable=no)
CPPFLAGS=$_libcurl_save_cppflags
LIBS=$_libcurl_save_libs
unset _libcurl_save_cppflags
unset _libcurl_save_libs
])
if test $libcurl_cv_lib_curl_usable = yes ; then
# Does curl_free() exist in this version of libcurl?
# If not, fake it with free()
_libcurl_save_cppflags=$CPPFLAGS
CPPFLAGS="$CPPFLAGS $LIBCURL_CPPFLAGS"
_libcurl_save_libs=$LIBS
LIBS="$LIBS $LIBCURL"
AC_CHECK_FUNC(curl_free,,
AC_DEFINE(curl_free,free,
[Define curl_free() as free() if our version of curl lacks curl_free.]))
CPPFLAGS=$_libcurl_save_cppflags
LIBS=$_libcurl_save_libs
unset _libcurl_save_cppflags
unset _libcurl_save_libs
AC_DEFINE(HAVE_LIBCURL,1,
[Define to 1 if you have a functional curl library.])
AC_SUBST(LIBCURL_CPPFLAGS)
AC_SUBST(LIBCURL)
for _libcurl_feature in $_libcurl_features ; do
AC_DEFINE_UNQUOTED(AS_TR_CPP(libcurl_feature_$_libcurl_feature),[1])
eval AS_TR_SH(libcurl_feature_$_libcurl_feature)=yes
done
if test x$libcurl_feature_SSL = xyes ; then
LIBCURL_CABUNDLE=`$_libcurl_config --ca 2>/dev/null`
AC_DEFINE_UNQUOTED(LIBCURL_CABUNDLE,"${LIBCURL_CABUNDLE}",[Define to the name of libcurl's certification file])
fi
if test "x$_libcurl_protocols" = "x" ; then
# We don't have --protocols, so just assume that all
# protocols are available
_libcurl_protocols="HTTP FTP GOPHER FILE TELNET LDAP DICT"
if test x$libcurl_feature_SSL = xyes ; then
_libcurl_protocols="$_libcurl_protocols HTTPS"
# FTPS wasn't standards-compliant until version
# 7.11.0
if test $_libcurl_version -ge 461568; then
_libcurl_protocols="$_libcurl_protocols FTPS"
fi
fi
fi
for _libcurl_protocol in $_libcurl_protocols ; do
AC_DEFINE_UNQUOTED(AS_TR_CPP(libcurl_protocol_$_libcurl_protocol),[1])
eval AS_TR_SH(libcurl_protocol_$_libcurl_protocol)=yes
done
fi
fi
unset _libcurl_try_link
unset _libcurl_version_parse
unset _libcurl_config
unset _libcurl_feature
unset _libcurl_features
unset _libcurl_protocol
unset _libcurl_protocols
unset _libcurl_version
fi
if test x$_libcurl_with = xno || test x$libcurl_cv_lib_curl_usable != xyes ; then
# This is the IF-NO path
ifelse([$4],,:,[$4])
else
# This is the IF-YES path
ifelse([$3],,:,[$3])
fi
unset _libcurl_with
])dnl