m_spanningtree Advertise the availability of m_globops in CAPAB CAPABILITIES

1 files changed, 6 insertions, 0 deletions

diff --git a/src/modules/m_spanningtree/capab.cpp b/src/modules/m_spanningtree/capab.cpp
index 62afe5974..d4023bd6d 100644
--- a/src/modules/m_spanningtree/capab.cpp
+++ b/src/modules/m_spanningtree/capab.cpp
@@ -157,6 +157,12 @@ void TreeSocket::SendCapabilities(int phase)
 			" PREFIX="+ServerInstance->Modes->BuildPrefixes()+
 			" CHANMODES="+ServerInstance->Modes->GiveModeList(MASK_CHANNEL)+
 			" USERMODES="+ServerInstance->Modes->GiveModeList(MASK_USER)+
+			// XXX: Advertise the presence or absence of m_globops in CAPAB CAPABILITIES.
+			// Services want to know about it, and since m_globops was not marked as VF_(OPT)COMMON
+			// in 2.0, we advertise it here to not break linking to previous versions.
+			// Protocol version 1201 (1.2) does not have this issue because we advertise m_globops
+			// to 1202 protocol servers irrespectively of its module flags.
+			(ServerInstance->Modules->Find("m_globops.so") != NULL ? " GLOBOPS=1" : " GLOBOPS=0")+
 			" SVSPART=1");
 
 	this->WriteLine("CAPAB END");