thrift: needs host-bison and host-flex

Fixes:

  http://autobuild.buildroot.org/results/d46/d46f9097780bdde68ec15f693281ee0b04667f98/

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/thrift/thrift.mk

@@ -9,7 +9,7 @@ THRIFT_SITE = http://www.us.apache.org/dist/thrift/$(THRIFT_VERSION)
 THRIFT_DEPENDENCIES = host-pkgconf host-thrift boost libevent openssl zlib
 THRIFT_INSTALL_STAGING = YES
 HOST_THRIFT_DEPENDENCIES = host-boost host-libevent host-openssl host-pkgconf \
-	host-zlib
+	host-zlib host-bison host-flex
 THRIFT_CONF_OPT = --with-sysroot=$(STAGING_DIR) --with-tests=no \
 	--with-boost=$(STAGING_DIR)
 HOST_THRIFT_CONF_OPT = --with-sysroot=$(HOST_DIR) --with-tests=no