autotools: fix build without proxy server

configure.ac

@@ -134,18 +134,17 @@ AM_COND_IF([ENABLE_PROXY_SERVER], [
 	AC_CHECK_LIB(restbed, exit,, AC_MSG_ERROR([Missing restbed files]))
 	PKG_CHECK_MODULES([Jsoncpp], [jsoncpp >= 1.7.4])
 	CPPFLAGS+=" -DOPENDHT_PROXY_SERVER=true -ljsoncpp -lrestbed"
-
+], [
+	CPPFLAGS+=" -DOPENDHT_PROXY_SERVER=false"
+])
 AC_ARG_ENABLE([proxy_server_identity], AS_HELP_STRING([--enable-proxy-server-identity],
     [Enable proxy server ability]), proxy_server_identity=yes, proxy_server_identity=no)
-	AM_CONDITIONAL(ENABLE_PROXY_SERVER_IDENTITY, test x$proxy_server_identity == xyes)
+AM_CONDITIONAL(ENABLE_PROXY_SERVER_IDENTITY, test x$proxy_server_identity == xyes -a x$proxy_server == xyes)
 AM_COND_IF([ENABLE_PROXY_SERVER_IDENTITY], [
     CPPFLAGS+=" -DOPENDHT_PROXY_SERVER_IDENTITY=true"
 ], [
     CPPFLAGS+=" -DOPENDHT_PROXY_SERVER_IDENTITY=false"
 ])
-], [
-	CPPFLAGS+=" -DOPENDHT_PROXY_SERVER=false"
-])
 
 
 AC_CONFIG_FILES([doc/Doxyfile doc/Makefile])