diff --git a/indra/llui/llfloater.cpp b/indra/llui/llfloater.cpp
index ca3829e1bdf4b28472229fbd79d9c4f2c1d56b80..a372bac4978e8d15065ad5cedc023678ea4c4d31 100644
--- a/indra/llui/llfloater.cpp
+++ b/indra/llui/llfloater.cpp
@@ -60,6 +60,7 @@
 #include "v2math.h"
 #include "lltrans.h"
 #include "llmultifloater.h"
+#include "llsdutil.h"
 
 // use this to control "jumping" behavior when Ctrl-Tabbing
 const S32 TABBED_FLOATER_OFFSET = 0;
@@ -145,6 +146,16 @@ LLFloater::handle_map_t	LLFloater::sFloaterMap;
 
 LLFloaterView* gFloaterView = NULL;
 
+/*==========================================================================*|
+// DEV-38598: The fundamental problem with this operation is that it can only
+// support a subset of LLSD values. While it's plausible to compare two arrays
+// lexicographically, what strict ordering can you impose on maps?
+// (LLFloaterTOS's current key is an LLSD map.)
+
+// Of course something like this is necessary if you want to build a std::set
+// or std::map with LLSD keys. Fortunately we're getting by with other
+// container types for now.
+
 //static
 bool LLFloater::KeyCompare::compare(const LLSD& a, const LLSD& b)
 {
@@ -172,32 +183,11 @@ bool LLFloater::KeyCompare::compare(const LLSD& a, const LLSD& b)
 	else
 		return false; // no valid operation for Binary
 }
+|*==========================================================================*/
 
 bool LLFloater::KeyCompare::equate(const LLSD& a, const LLSD& b)
 {
-	if (a.type() != b.type())
-	{
-		//llerrs << "Mismatched LLSD types: (" << a << ") mismatches (" << b << ")" << llendl;
-		return false;
-	}
-	else if (a.isUndefined())
-		return true;
-	else if (a.isInteger())
-		return a.asInteger() == b.asInteger();
-	else if (a.isReal())
-		return a.asReal() == b.asReal();
-	else if (a.isString())
-		return a.asString() == b.asString();
-	else if (a.isUUID())
-		return a.asUUID() == b.asUUID();
-	else if (a.isDate())
-		return a.asDate() == b.asDate();
-	else if (a.isURI())
-		return a.asString() == b.asString(); // compare URIs as strings
-	else if (a.isBoolean())
-		return a.asBoolean() == b.asBoolean();
-	else
-		return false; // no valid operation for Binary
+	return llsd_equals(a, b);
 }
 
 //************************************
diff --git a/indra/llui/llfloater.h b/indra/llui/llfloater.h
index ee066317e049b23bae6fa6ac70837b191c5edb50..cace13939fc10e085b84078658bf4a81956a7034 100644
--- a/indra/llui/llfloater.h
+++ b/indra/llui/llfloater.h
@@ -87,12 +87,14 @@ friend class LLMultiFloater;
 public:
 	struct KeyCompare
 	{
-		static bool compare(const LLSD& a, const LLSD& b);
+//		static bool compare(const LLSD& a, const LLSD& b);
 		static bool equate(const LLSD& a, const LLSD& b);
+/*==========================================================================*|
 		bool operator()(const LLSD& a, const LLSD& b) const
 		{
 			return compare(a, b);
 		}
+|*==========================================================================*/
 	};
 	
 	enum EFloaterButtons
diff --git a/indra/newview/llfloatertos.cpp b/indra/newview/llfloatertos.cpp
index d8aea2770fb1fc674f8c983ba189fb806f5580d7..8d2d48f1af876bf5b4de26c5e7d36a23db3aaadb 100644
--- a/indra/newview/llfloatertos.cpp
+++ b/indra/newview/llfloatertos.cpp
@@ -48,6 +48,7 @@
 #include "lluictrlfactory.h"
 #include "llvfile.h"
 #include "message.h"
+#include "llstartup.h"              // login_alert_done
 
 
 LLFloaterTOS::LLFloaterTOS(const LLSD& data)
@@ -206,6 +207,7 @@ void LLFloaterTOS::onCancel( void* userdata )
 {
 	LLFloaterTOS* self = (LLFloaterTOS*) userdata;
 	llinfos << "User disagrees with TOS." << llendl;
+	LLNotifications::instance().add("MustAgreeToLogIn", LLSD(), LLSD(), login_alert_done);
 
 	if(self->mReplyPumpName != "")
 	{
diff --git a/indra/newview/lllogininstance.cpp b/indra/newview/lllogininstance.cpp
index e56d28e0662f4c41597d4b9e27fc34b8b1ab7cea..8bf769a13211b02c24d2c633152c80d911913a40 100644
--- a/indra/newview/lllogininstance.cpp
+++ b/indra/newview/lllogininstance.cpp
@@ -50,7 +50,7 @@
 #include "llviewercontrol.h"
 #include "llurlsimstring.h"
 #include "llfloaterreg.h"
-#include "llfloatertos.h"
+#include "llnotifications.h"
 #include "llwindow.h"
 #if LL_LINUX || LL_SOLARIS
 #include "lltrans.h"
diff --git a/indra/newview/tests/lllogininstance_test.cpp b/indra/newview/tests/lllogininstance_test.cpp
index a84e79615907bbb5b89e41ddf2de08f0b11f390a..75db76df27e29e21943e3c30ccf98150d7addb72 100644
--- a/indra/newview/tests/lllogininstance_test.cpp
+++ b/indra/newview/tests/lllogininstance_test.cpp
@@ -91,7 +91,7 @@ LLURLSimString LLURLSimString::sInstance;
 bool LLURLSimString::parse() { return true; }
 
 //-----------------------------------------------------------------------------
-#include "../llfloatertos.h"
+#include "llnotifications.h"
 #include "llfloaterreg.h"
 static std::string gTOSType;
 static LLEventPump * gTOSReplyPump = NULL;