diff --git a/CMakeLists.txt b/CMakeLists.txt
index d2937a9..71dcb77 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -3,7 +3,8 @@ cmake_minimum_required(VERSION 2.8)
 include(GNUInstallDirs)
 
 # Grive version. remember to update it for every new release!
-set( GRIVE_VERSION "0.5.2-dev" )
+set( GRIVE_VERSION "0.5.2-dev" CACHE STRING "Grive version" )
+message(WARNING "Version to build: ${GRIVE_VERSION}")
 
 # common compile options
 add_definitions( -DVERSION="${GRIVE_VERSION}" )
@@ -12,4 +13,3 @@ add_definitions( -D_FILE_OFFSET_BITS=64 -std=c++0x )
 add_subdirectory( systemd )
 add_subdirectory( libgrive )
 add_subdirectory( grive )
-	
\ No newline at end of file
diff --git a/README.md b/README.md
index ff3cb4f..d9a0da2 100644
--- a/README.md
+++ b/README.md
@@ -159,6 +159,14 @@ Grive uses cmake to build. Basic install sequence is
     make -j4
     sudo make install
 
+Alternativly you can define your own client_id and client_secret during build
+
+    mkdir build
+    cd build
+    cmake .. "-DAPP_ID:STRING=<client_id>" "-DAPP_SECRET:STRING=<client_secret>"
+    make -j4
+    sudo make install
+
 ## Version History
 
 ### Grive2 v0.5.2-dev
diff --git a/grive/CMakeLists.txt b/grive/CMakeLists.txt
index 0908380..ac5b781 100644
--- a/grive/CMakeLists.txt
+++ b/grive/CMakeLists.txt
@@ -20,6 +20,17 @@ target_link_libraries( grive_executable
 	grive
 )
 
+set(DEFAULT_APP_ID "615557989097-i93d4d1ojpen0m0dso18ldr6orjkidgf.apps.googleusercontent.com")
+set(DEFAULT_APP_SECRET "xiM8Apu_WuRRdheNelJcNtOD")
+set(APP_ID ${DEFAULT_APP_ID} CACHE STRING "Application Id")
+set(APP_SECRET ${DEFAULT_APP_SECRET} CACHE STRING "Application Secret")
+
+target_compile_definitions ( grive_executable
+	PRIVATE
+		-DAPP_ID="${APP_ID}"
+		-DAPP_SECRET="${APP_SECRET}"
+)
+
 set_target_properties( grive_executable
 	PROPERTIES OUTPUT_NAME grive
 )
diff --git a/grive/src/main.cc b/grive/src/main.cc
index 31a2b07..54d5560 100644
--- a/grive/src/main.cc
+++ b/grive/src/main.cc
@@ -46,8 +46,8 @@
 #include <iostream>
 #include <unistd.h>
 
-const std::string default_id            = "615557989097-i93d4d1ojpen0m0dso18ldr6orjkidgf.apps.googleusercontent.com" ;
-const std::string default_secret        = "xiM8Apu_WuRRdheNelJcNtOD" ;
+const std::string default_id            = APP_ID ;
+const std::string default_secret        = APP_SECRET ;
 
 using namespace gr ;
 namespace po = boost::program_options;
@@ -113,6 +113,7 @@ int Main( int argc, char **argv )
 		( "auth,a",		"Request authorization token" )
                 ( "id,i",               po::value<std::string>(), "Authentication ID")
                 ( "secret,e",           po::value<std::string>(), "Authentication secret")
+                ( "print-url",          "Only print url for request")
 		( "path,p",		po::value<std::string>(), "Path to working copy root")
 		( "dir,s",		po::value<std::string>(), "Single subdirectory to sync")
 		( "verbose,V",	"Verbose mode. Enable more messages than normal.")
@@ -174,23 +175,23 @@ int Main( int argc, char **argv )
 		http->SetProgressReporter( pb.get() );
 	}
 
-	std::string id = default_id;
-	std::string secret = default_secret;
-
-	if( vm.count( "id" ) )
-	{
-		id = vm["id"].as<std::string>();
-	}
-
-	if( vm.count( "secret" ) )
-	{
-		secret = vm["secret"].as<std::string>();
-	}
-
 	if ( vm.count( "auth" ) )
 	{
+		std::string id = vm.count( "id" ) > 0
+                        ? vm["id"].as<std::string>()
+                        : default_id ;
+		std::string secret = vm.count( "secret" ) > 0
+                        ? vm["secret"].as<std::string>()
+                        : default_secret ;
+
 		OAuth2 token( http.get(), id, secret ) ;
 		
+		if ( vm.count("print-url") )
+		{
+			std::cout <<  token.MakeAuthURL() << std::endl ;
+			return 0 ;
+		}
+		
 		std::cout
 			<< "-----------------------\n"
 			<< "Please go to this URL and get an authentication code:\n\n"
@@ -206,14 +207,20 @@ int Main( int argc, char **argv )
 		token.Auth( code ) ;
 		
 		// save to config
+		config.Set( "id", Val( id ) ) ;
+		config.Set( "secret", Val( secret ) ) ;
 		config.Set( "refresh_token", Val( token.RefreshToken() ) ) ;
 		config.Save() ;
 	}
 	
 	std::string refresh_token ;
+	std::string id ;
+	std::string secret ;
 	try
 	{
 		refresh_token = config.Get("refresh_token").Str() ;
+		id = config.Get("id").Str() ;
+		secret = config.Get("secret").Str() ;
 	}
 	catch ( Exception& e )
 	{
diff --git a/libgrive/src/util/Config.cc b/libgrive/src/util/Config.cc
index ba0c91e..c08972f 100644
--- a/libgrive/src/util/Config.cc
+++ b/libgrive/src/util/Config.cc
@@ -38,6 +38,10 @@ const std::string	default_root_folder = ".";
 
 Config::Config( const po::variables_map& vm )
 {
+	if ( vm.count( "id" ) > 0 )
+		m_cmd.Add( "id",	Val( vm["id"].as<std::string>() ) ) ;
+	if ( vm.count( "secret" ) > 0 )
+		m_cmd.Add( "secret",	Val( vm["secret"].as<std::string>() ) ) ;
 	m_cmd.Add( "new-rev",	Val(vm.count("new-rev") > 0) ) ;
 	m_cmd.Add( "force",		Val(vm.count("force") > 0 ) ) ;
 	m_cmd.Add( "path",		Val(vm.count("path") > 0