implement part 1 of the multi-protocol functionality: protocols

this contains support for connecting via, and serving simultaneously via, any of the three protocols: latest, GPP and 1.1

alternate-1 means protocol 70 (GPP), alternate-2 means protocol 69 (1.1)

relevant cvars:
- net_alternateProtocols
- net_alt{1|2}port[6]
- sv_alt{1|2}master{1|...|5}
- sv_clAltProto{0|..|63}

1 files changed, 4 insertions, 0 deletions

diff --git a/src/qcommon/vm.c b/src/qcommon/vm.c
index 18be5331..aa77f605 100644
--- a/src/qcommon/vm.c
+++ b/src/qcommon/vm.c
@@ -744,6 +744,10 @@ void VM_Forced_Unload_Done(void) {
 	forced_unload = 0;
 }
 
+void VM_ClearCallLevel(vm_t *vm) {
+	vm->callLevel = 0;
+}
+
 void *VM_ArgPtr( intptr_t intValue ) {
 	if ( !intValue ) {
 		return NULL;