+PKG_PROG_PKG_CONFIG([0.20])
+
+# Checks for libraries
+
+dnl extra argument: --enable-pathfinder
+AC_ARG_ENABLE(pathfinder,
+ AC_HELP_STRING([--enable-pathfinder], [Enable libpathfinder support.
+ [[default=no]] ]),
+ [want_pathfinder="$enableval"], [want_pathfinder="no"])
+dnl Check for libpathfinder
+if test "x$want_pathfinder" = "xyes"; then
+ PKG_CHECK_MODULES([PATHFINDER], [pathfinder-openssl dbus-1 openssl])
+ if test -n "$PATHFINDER_CFLAGS$PATHFINDER_LIBS"; then
+ AC_DEFINE(HAVE_PATHFINDER, 1, [we have pathfinder])
+ fi
+ AC_SUBST(PATHFINDER_CFLAGS)
+ AC_SUBST(PATHFINDER_LIBS)
+fi
+AM_CONDITIONAL(HAVE_PATHFINDER, test "x$want_pathfinder" = "xyes")
+
+# check for libcurl
+AC_ARG_ENABLE(curl,
+ AC_HELP_STRING([--enable-curl], [Enable downloading with curl
+ [[default=yes]] ]),
+ [want_curl="$enableval"], [want_curl="yes"])
+
+if test "x$want_curl" = "xyes"; then
+ PKG_CHECK_MODULES(CURL, [libcurl])
+ AC_DEFINE(HAVE_CURL, 1, [Define if you want CURL support])
+fi
+
+# check for sha256
+AC_ARG_ENABLE(sha256,
+ AC_HELP_STRING([--enable-sha256], [Enable sha256sum check
+ [[default=yes]] ]),
+ [want_sha256="$enableval"], [want_sha256="yes"])
+
+if test "x$want_sha256" = "xyes"; then
+ AC_DEFINE(HAVE_SHA256, 1, [Define if you want sha256 support])
+fi
+AM_CONDITIONAL(HAVE_SHA256, test "x$want_sha256" = "xyes")
+
+# check for openssl
+AC_ARG_ENABLE(openssl,
+ AC_HELP_STRING([--enable-openssl], [Enable signature checking with OpenSSL
+ [[default=no]] ]),
+ [want_openssl="$enableval"], [want_openssl="no"])
+
+if test "x$want_openssl" = "xyes"; then
+ AC_DEFINE(HAVE_OPENSSL, 1, [Define if you want OpenSSL support])
+ NEED_SSL_LIBS="yes"
+fi
+
+# check for libssl-curl
+AC_ARG_ENABLE(ssl-curl,
+ AC_HELP_STRING([--enable-ssl-curl], [Enable certificate authentication with curl
+ [[default="yes"]] ]),
+ [want_sslcurl="$enableval"], [want_sslcurl="yes"])
+
+if test "x$want_curl" = "xyes" -a "x$want_sslcurl" = "xyes"; then
+ AC_DEFINE(HAVE_CURL, 1, [Define if you want CURL support])
+ AC_DEFINE(HAVE_SSLCURL, 1, [Define if you want certificate authentication with curl])
+ NEED_SSL_LIBS="yes"
+fi
+
+if test "x$NEED_SSL_LIBS" = "xyes"; then
+ AC_MSG_CHECKING([if openssl is available])
+
+ PKG_CHECK_MODULES(OPENSSL, openssl, [:], [:])
+ if test "x$OPENSSL_LIBS" != "x"; then
+ AC_MSG_RESULT(yes)
+ else
+ OPENSSL_LIBS="-lcrypto -lssl"
+ dnl If pkg-config fails, run compile/link test.
+ AC_TRY_LINK([
+#include <openssl/opensslv.h>
+], [
+return OPENSSL_VERSION_NUMBER; ],
+ [
+ AC_MSG_RESULT(yes)
+
+ ], [
+ AC_MSG_RESULT(no)
+ AC_MSG_ERROR(OpenSSL not found)
+ ])
+ fi
+ AC_SUBST(OPENSSL_LIBS)
+fi
+
+
+dnl **********
+dnl GPGME
+dnl **********
+
+AC_ARG_ENABLE(gpg,
+ AC_HELP_STRING([--enable-gpg], [Enable signature checking with gpgme
+ [[default=yes]] ]),
+ [want_gpgme="$enableval"], [want_gpgme="yes"])
+
+if test "x$want_gpgme" = "xyes"; then
+ ok="no"
+ min_gpgme_version=1.0.0
+ AC_PATH_PROG(GPGME_CONFIG, gpgme-config, "failed")
+ if test $GPGME_CONFIG != "failed" ; then
+ AC_MSG_CHECKING(for GPGME - version >= $min_gpgme_version)
+ req_major=`echo $min_gpgme_version | \
+ sed 's/\([[0-9]]*\)\.\([[0-9]]*\)\.\([[0-9]]*\)/\1/'`
+ req_minor=`echo $min_gpgme_version | \
+ sed 's/\([[0-9]]*\)\.\([[0-9]]*\)\.\([[0-9]]*\)/\2/'`
+ req_micro=`echo $min_gpgme_version | \
+ sed 's/\([[0-9]]*\)\.\([[0-9]]*\)\.\([[0-9]]*\)/\3/'`
+ gpgme_config_version=`$GPGME_CONFIG --version`
+ major=`echo $gpgme_config_version | \
+ sed 's/\([[0-9]]*\)\.\([[0-9]]*\)\.\([[0-9]]*\).*/\1/'`
+ minor=`echo $gpgme_config_version | \
+ sed 's/\([[0-9]]*\)\.\([[0-9]]*\)\.\([[0-9]]*\).*/\2/'`
+ micro=`echo $gpgme_config_version | \
+ sed 's/\([[0-9]]*\)\.\([[0-9]]*\)\.\([[0-9]]*\).*/\3/'`
+
+ if test "$major" -eq "$req_major"; then
+ if test "$minor" -ge "$req_minor"; then
+ if test "$micro" -ge "$req_micro"; then
+ ok="yes"
+ fi
+ fi
+ fi
+ fi
+
+ if test $ok = "yes"; then
+ GPGME_CFLAGS=`$GPGME_CONFIG --cflags`
+ GPGME_LIBS=`$GPGME_CONFIG --libs`
+ AC_MSG_RESULT(yes)
+ AC_DEFINE(HAVE_GPGME, 1, [Define if you want GPG support])
+ else
+ AC_MSG_ERROR(GPGME $min_gpgme_version or later needed)
+ fi
+fi
+
+AC_SUBST(GPGME_CFLAGS)
+AC_SUBST(GPGME_LIBS)