diff --git a/.hgtags b/.hgtags
index 9ca419211ea7617e3b753ae43caf3f479115283b..f0b0ec22fa6107666b93ea571448c16af3ecbe55 100755
--- a/.hgtags
+++ b/.hgtags
@@ -458,8 +458,7 @@ a314f1c94374ab1f6633dd2983f7090a68663eb2 3.5.2-beta4
 9b1b6f33aa5394b27bb652b31b5cb81ef6060370 3.5.2-release
 a277b841729f2a62ba1e34acacc964bc13c1ad6f 3.5.3-release
 fb1630153bac5552046ea914af3f14deabc1def8 3.6.0-materials-beta1
-69429d81ae4dd321eda2607901ef0a0fde71b54c 3.6.0-release
-69429d81ae4dd321eda2607901ef0a0fde71b54c 3.6.0-release
 0a56f33ad6aa112032b14a41dad759ad377bdde9 3.6.0-release
+83357f31d8dbf048a8bfdc323f363bf4d588aca1 CHOP-951-a
 75cf8e855ae1af6895a35da475314c2b5acf1850 3.6.1-release
 f6741d5fe8d632651424484df0fe0cb4a01e9fbe 3.6.2-release
diff --git a/BuildParams b/BuildParams
index 84d30f651bad54782baf50b8fb0f3dcb4e8c4900..5ee1bd11eaa97583815b1d6ec67220804a12567d 100755
--- a/BuildParams
+++ b/BuildParams
@@ -26,6 +26,9 @@ codeticket_since = 3.3.0-release
 Linux.gcc_version = /usr/bin/gcc-4.6
 Linux.cxx_version = /usr/bin/g++-4.6
 
+# Setup default sourceid so Windows can pick up the TeamCity override
+sourceid = ""
+
 ################################################################
 ####      Examples of how to set the viewer_channel         ####
 #
diff --git a/indra/lib/python/indra/util/llmanifest.py b/indra/lib/python/indra/util/llmanifest.py
index 9cb830a2dbd1956424cbfb3063f2f6dfcf569ef2..54049b5545bf8ef9dae8321b5ded922b7240228a 100755
--- a/indra/lib/python/indra/util/llmanifest.py
+++ b/indra/lib/python/indra/util/llmanifest.py
@@ -392,11 +392,21 @@ def created_path(self, path):
             raise ManifestError, "Should be something at path " + path
         self.created_paths.append(path)
 
-    def put_in_file(self, contents, dst):
+    def put_in_file(self, contents, dst, src=None):
         # write contents as dst
-        f = open(self.dst_path_of(dst), "wb")
-        f.write(contents)
-        f.close()
+        dst_path = self.dst_path_of(dst)
+        f = open(dst_path, "wb")
+        try:
+            f.write(contents)
+        finally:
+            f.close()
+
+        # Why would we create a file in the destination tree if not to include
+        # it in the installer? The default src=None (plus the fact that the
+        # src param is last) is to preserve backwards compatibility.
+        if src:
+            self.file_list.append([src, dst_path])
+        return dst_path
 
     def replace_in(self, src, dst=None, searchdict={}):
         if dst == None:
diff --git a/indra/llui/llfloaterreg.cpp b/indra/llui/llfloaterreg.cpp
index 1cdddf0d5b93e830eabc4776cabcfb26bf3dd6e0..b1b75776a7b43bc56a4dca5d419103b6faced0cb 100755
--- a/indra/llui/llfloaterreg.cpp
+++ b/indra/llui/llfloaterreg.cpp
@@ -356,8 +356,8 @@ std::string LLFloaterReg::declareRectControl(const std::string& name)
 {
 	std::string controlname = getRectControlName(name);
 	LLFloater::getControlGroup()->declareRect(controlname, LLRect(),
-												 llformat("Window Size for %s", name.c_str()),
-												 TRUE);
+											  llformat("Window Size for %s", name.c_str()),
+											  LLControlVariable::PERSIST_NONDFT);
 	return controlname;
 }
 
@@ -367,7 +367,7 @@ std::string LLFloaterReg::declarePosXControl(const std::string& name)
 	LLFloater::getControlGroup()->declareF32(controlname, 
 											10.f,
 											llformat("Window X Position for %s", name.c_str()),
-											TRUE);
+											LLControlVariable::PERSIST_NONDFT);
 	return controlname;
 }
 
@@ -377,7 +377,7 @@ std::string LLFloaterReg::declarePosYControl(const std::string& name)
 	LLFloater::getControlGroup()->declareF32(controlname,
 											10.f,
 											llformat("Window Y Position for %s", name.c_str()),
-											TRUE);
+											LLControlVariable::PERSIST_NONDFT);
 
 	return controlname;
 }
@@ -404,7 +404,7 @@ std::string LLFloaterReg::declareVisibilityControl(const std::string& name)
 	std::string controlname = getVisibilityControlName(name);
 	LLFloater::getControlGroup()->declareBOOL(controlname, FALSE,
 												 llformat("Window Visibility for %s", name.c_str()),
-												 TRUE);
+												 LLControlVariable::PERSIST_NONDFT);
 	return controlname;
 }
 
@@ -414,7 +414,7 @@ std::string LLFloaterReg::declareDockStateControl(const std::string& name)
 	std::string controlname = getDockStateControlName(name);
 	LLFloater::getControlGroup()->declareBOOL(controlname, TRUE,
 												 llformat("Window Docking state for %s", name.c_str()),
-												 TRUE);
+												 LLControlVariable::PERSIST_NONDFT);
 	return controlname;
 
 }
diff --git a/indra/llui/llnotifications.cpp b/indra/llui/llnotifications.cpp
index 1789f003b91ecd843aba930d724b22e4184e4f48..a1853ca1f787de02aec6216015af041244c3d0d2 100755
--- a/indra/llui/llnotifications.cpp
+++ b/indra/llui/llnotifications.cpp
@@ -214,7 +214,7 @@ LLNotificationForm::LLNotificationForm(const std::string& name, const LLNotifica
 		}
 		else
 		{
-			LLUI::sSettingGroups["ignores"]->declareBOOL(name, show_notification, "Show notification with this name", TRUE);
+			LLUI::sSettingGroups["ignores"]->declareBOOL(name, show_notification, "Show notification with this name", LLControlVariable::PERSIST_NONDFT);
 			mIgnoreSetting = LLUI::sSettingGroups["ignores"]->getControl(name);
 		}
 	}
diff --git a/indra/llvfs/lldir.h b/indra/llvfs/lldir.h
index cc10ed5bbd02501f5da65037a4a8f735ab16404f..e02bf552aadccfd7b38dc83f26346cf7a18f04bb 100755
--- a/indra/llvfs/lldir.h
+++ b/indra/llvfs/lldir.h
@@ -32,7 +32,7 @@
 #define MAX_PATH MAXPATHLEN
 #endif
 
-// these numbers *may* get serialized (really??), so we need to be explicit
+// these numbers are read from settings_files.xml, so we need to be explicit
 typedef enum ELLPath
 {
 	LL_PATH_NONE = 0,
diff --git a/indra/llxml/llcontrol.cpp b/indra/llxml/llcontrol.cpp
index 666c03e9fffc89295d0549544d0c3c18e9382104..16f22907872f01a7b3fbedc454716285145ee665 100755
--- a/indra/llxml/llcontrol.cpp
+++ b/indra/llxml/llcontrol.cpp
@@ -132,14 +132,14 @@ bool LLControlVariable::llsd_compare(const LLSD& a, const LLSD & b)
 
 LLControlVariable::LLControlVariable(const std::string& name, eControlType type,
 							 LLSD initial, const std::string& comment,
-							 bool persist, bool hidefromsettingseditor)
+							 ePersist persist, bool hidefromsettingseditor)
 	: mName(name),
 	  mComment(comment),
 	  mType(type),
 	  mPersist(persist),
 	  mHideFromSettingsEditor(hidefromsettingseditor)
 {
-	if (mPersist && mComment.empty())
+	if ((persist != PERSIST_NO) && mComment.empty())
 	{
 		llerrs << "Must supply a comment for control " << mName << llendl;
 	}
@@ -260,7 +260,7 @@ void LLControlVariable::setDefaultValue(const LLSD& value)
 	}
 }
 
-void LLControlVariable::setPersist(bool state)
+void LLControlVariable::setPersist(ePersist state)
 {
 	mPersist = state;
 }
@@ -292,10 +292,29 @@ void LLControlVariable::resetToDefault(bool fire_signal)
 	}
 }
 
-bool LLControlVariable::isSaveValueDefault()
-{ 
-    return (mValues.size() ==  1) 
-        || ((mValues.size() > 1) && llsd_compare(mValues[1], mValues[0]));
+bool LLControlVariable::shouldSave(bool nondefault_only)
+{
+	// This method is used to decide whether we should save a given
+	// variable. Two of the three values of mPersist are easy.
+	if (mPersist == PERSIST_NO)
+		return false;
+
+	if (mPersist == PERSIST_ALWAYS)
+		return true;
+
+	// PERSIST_NONDFT
+	// If caller doesn't need us to filter, just save.
+	if (! nondefault_only)
+		return true;
+
+	// PERSIST_NONDFT: caller only wants us to save this variable if its value
+	// differs from default.
+	if (isDefault())                // never been altered
+		return false;
+
+	// We've set at least one other value: compare it to default. Save only if
+	// they differ.
+	return ! llsd_compare(getSaveValue(), getDefault());
 }
 
 LLSD LLControlVariable::getSaveValue() const
@@ -355,12 +374,12 @@ std::string LLControlGroup::typeEnumToString(eControlType typeenum)
 	return mTypeString[typeenum];
 }
 
-BOOL LLControlGroup::declareControl(const std::string& name, eControlType type, const LLSD initial_val, const std::string& comment, BOOL persist, BOOL hidefromsettingseditor)
+LLControlVariable* LLControlGroup::declareControl(const std::string& name, eControlType type, const LLSD initial_val, const std::string& comment, LLControlVariable::ePersist persist, BOOL hidefromsettingseditor)
 {
 	LLControlVariable* existing_control = getControl(name);
 	if (existing_control)
  	{
-		if (persist && existing_control->isType(type))
+		if ((persist != LLControlVariable::PERSIST_NO) && existing_control->isType(type))
 		{
 			if (!existing_control->llsd_compare(existing_control->getDefault(), initial_val))
 			{
@@ -374,66 +393,66 @@ BOOL LLControlGroup::declareControl(const std::string& name, eControlType type,
 		{
 			llwarns << "Control named " << name << " already exists, ignoring new declaration." << llendl;
 		}
- 		return TRUE;
+ 		return existing_control;
 	}
 
 	// if not, create the control and add it to the name table
 	LLControlVariable* control = new LLControlVariable(name, type, initial_val, comment, persist, hidefromsettingseditor);
 	mNameTable[name] = control;	
-	return TRUE;
+	return control;
 }
 
-BOOL LLControlGroup::declareU32(const std::string& name, const U32 initial_val, const std::string& comment, BOOL persist)
+LLControlVariable* LLControlGroup::declareU32(const std::string& name, const U32 initial_val, const std::string& comment, LLControlVariable::ePersist persist)
 {
 	return declareControl(name, TYPE_U32, (LLSD::Integer) initial_val, comment, persist);
 }
 
-BOOL LLControlGroup::declareS32(const std::string& name, const S32 initial_val, const std::string& comment, BOOL persist)
+LLControlVariable* LLControlGroup::declareS32(const std::string& name, const S32 initial_val, const std::string& comment, LLControlVariable::ePersist persist)
 {
 	return declareControl(name, TYPE_S32, initial_val, comment, persist);
 }
 
-BOOL LLControlGroup::declareF32(const std::string& name, const F32 initial_val, const std::string& comment, BOOL persist)
+LLControlVariable* LLControlGroup::declareF32(const std::string& name, const F32 initial_val, const std::string& comment, LLControlVariable::ePersist persist)
 {
 	return declareControl(name, TYPE_F32, initial_val, comment, persist);
 }
 
-BOOL LLControlGroup::declareBOOL(const std::string& name, const BOOL initial_val, const std::string& comment, BOOL persist)
+LLControlVariable* LLControlGroup::declareBOOL(const std::string& name, const BOOL initial_val, const std::string& comment, LLControlVariable::ePersist persist)
 {
 	return declareControl(name, TYPE_BOOLEAN, initial_val, comment, persist);
 }
 
-BOOL LLControlGroup::declareString(const std::string& name, const std::string& initial_val, const std::string& comment, BOOL persist)
+LLControlVariable* LLControlGroup::declareString(const std::string& name, const std::string& initial_val, const std::string& comment, LLControlVariable::ePersist persist)
 {
 	return declareControl(name, TYPE_STRING, initial_val, comment, persist);
 }
 
-BOOL LLControlGroup::declareVec3(const std::string& name, const LLVector3 &initial_val, const std::string& comment, BOOL persist)
+LLControlVariable* LLControlGroup::declareVec3(const std::string& name, const LLVector3 &initial_val, const std::string& comment, LLControlVariable::ePersist persist)
 {
 	return declareControl(name, TYPE_VEC3, initial_val.getValue(), comment, persist);
 }
 
-BOOL LLControlGroup::declareVec3d(const std::string& name, const LLVector3d &initial_val, const std::string& comment, BOOL persist)
+LLControlVariable* LLControlGroup::declareVec3d(const std::string& name, const LLVector3d &initial_val, const std::string& comment, LLControlVariable::ePersist persist)
 {
 	return declareControl(name, TYPE_VEC3D, initial_val.getValue(), comment, persist);
 }
 
-BOOL LLControlGroup::declareRect(const std::string& name, const LLRect &initial_val, const std::string& comment, BOOL persist)
+LLControlVariable* LLControlGroup::declareRect(const std::string& name, const LLRect &initial_val, const std::string& comment, LLControlVariable::ePersist persist)
 {
 	return declareControl(name, TYPE_RECT, initial_val.getValue(), comment, persist);
 }
 
-BOOL LLControlGroup::declareColor4(const std::string& name, const LLColor4 &initial_val, const std::string& comment, BOOL persist )
+LLControlVariable* LLControlGroup::declareColor4(const std::string& name, const LLColor4 &initial_val, const std::string& comment, LLControlVariable::ePersist persist )
 {
 	return declareControl(name, TYPE_COL4, initial_val.getValue(), comment, persist);
 }
 
-BOOL LLControlGroup::declareColor3(const std::string& name, const LLColor3 &initial_val, const std::string& comment, BOOL persist )
+LLControlVariable* LLControlGroup::declareColor3(const std::string& name, const LLColor3 &initial_val, const std::string& comment, LLControlVariable::ePersist persist )
 {
 	return declareControl(name, TYPE_COL3, initial_val.getValue(), comment, persist);
 }
 
-BOOL LLControlGroup::declareLLSD(const std::string& name, const LLSD &initial_val, const std::string& comment, BOOL persist )
+LLControlVariable* LLControlGroup::declareLLSD(const std::string& name, const LLSD &initial_val, const std::string& comment, LLControlVariable::ePersist persist )
 {
 	return declareControl(name, TYPE_LLSD, initial_val, comment, persist);
 }
@@ -664,11 +683,11 @@ U32 LLControlGroup::loadFromFileLegacy(const std::string& filename, BOOL require
 			switch(declare_as)
 			{
 			case TYPE_COL4:
-				declareColor4(name, LLColor4::white, LLStringUtil::null, NO_PERSIST);
+				declareColor4(name, LLColor4::white, LLStringUtil::null, LLControlVariable::PERSIST_NO);
 				break;
 			case TYPE_STRING:
 			default:
-				declareString(name, LLStringUtil::null, LLStringUtil::null, NO_PERSIST);
+				declareString(name, LLStringUtil::null, LLStringUtil::null, LLControlVariable::PERSIST_NO);
 				break;
 			}
 		}
@@ -805,21 +824,12 @@ U32 LLControlGroup::saveToFile(const std::string& filename, BOOL nondefault_only
 		{
 			llwarns << "Tried to save invalid control: " << iter->first << llendl;
 		}
-
-		if( control && control->isPersisted() )
+		else if( control->shouldSave(nondefault_only) )
 		{
-			if (!(nondefault_only && (control->isSaveValueDefault())))
-			{
-				settings[iter->first]["Type"] = typeEnumToString(control->type());
-				settings[iter->first]["Comment"] = control->getComment();
-				settings[iter->first]["Value"] = control->getSaveValue();
-				++num_saved;
-			}
-			else
-			{
-				// Debug spam
-				// llinfos << "Skipping " << control->getName() << llendl;
-			}
+			settings[iter->first]["Type"] = typeEnumToString(control->type());
+			settings[iter->first]["Comment"] = control->getComment();
+			settings[iter->first]["Value"] = control->getSaveValue();
+			++num_saved;
 		}
 	}
 	llofstream file;
@@ -862,13 +872,14 @@ U32 LLControlGroup::loadFromFile(const std::string& filename, bool set_default_v
 	
 	for(LLSD::map_const_iterator itr = settings.beginMap(); itr != settings.endMap(); ++itr)
 	{
-		bool persist = true;
+		LLControlVariable::ePersist persist = LLControlVariable::PERSIST_NONDFT;
 		std::string const & name = itr->first;
 		LLSD const & control_map = itr->second;
 		
 		if(control_map.has("Persist")) 
 		{
-			persist = control_map["Persist"].asInteger();
+			persist = control_map["Persist"].asInteger()?
+					  LLControlVariable::PERSIST_NONDFT : LLControlVariable::PERSIST_NO;
 		}
 		
 		// Sometimes we want to use the settings system to provide cheap persistence, but we
@@ -887,6 +898,8 @@ U32 LLControlGroup::loadFromFile(const std::string& filename, bool set_default_v
 		LLControlVariable* existing_control = getControl(name);
 		if(existing_control)
 		{
+			// set_default_values is true when we're loading the initial,
+			// immutable files from app_settings, e.g. settings.xml.
 			if(set_default_values)
 			{
 				// Override all previously set properties of this control.
@@ -908,6 +921,9 @@ U32 LLControlGroup::loadFromFile(const std::string& filename, bool set_default_v
 			}
 			else if(existing_control->isPersisted())
 			{
+				// save_values is specifically false for (e.g.)
+				// SessionSettingsFile and UserSessionSettingsFile -- in other
+				// words, for a file that's supposed to be transient.
 				existing_control->setValue(control_map["Value"], save_values);
 			}
 			// *NOTE: If not persisted and not setting defaults, 
@@ -915,6 +931,39 @@ U32 LLControlGroup::loadFromFile(const std::string& filename, bool set_default_v
 		}
 		else
 		{
+			// We've never seen this control before. Either we're loading up
+			// the initial set of default settings files (set_default_values)
+			// -- or we're loading user settings last saved by a viewer that
+			// supports a superset of the variables we know.
+			// CHOP-962: if we're loading an unrecognized user setting, make
+			// sure we save it later. If you try an experimental viewer, tweak
+			// a new setting, briefly revert to an old viewer, then return to
+			// the new one, we don't want the old viewer to discard the
+			// setting you changed.
+			if (! set_default_values)
+			{
+				// Using PERSIST_ALWAYS insists that saveToFile() (which calls
+				// LLControlVariable::shouldSave()) must save this control
+				// variable regardless of its value. We can safely set this
+				// LLControlVariable persistent because the 'persistent' flag
+				// is not itself persisted!
+				persist = LLControlVariable::PERSIST_ALWAYS;
+				// We want to mention unrecognized user settings variables
+				// (e.g. from a newer version of the viewer) in the log. But
+				// we also arrive here for Boolean variables generated by
+				// the notifications subsystem when the user checks "Don't
+				// show me this again." These aren't declared in settings.xml;
+				// they're actually named for the notification they suppress.
+				// We don't want to mention those. Apologies, this is a bit of
+				// a hack: we happen to know that user settings go into an
+				// LLControlGroup whose name is "Global".
+				if (getKey() == "Global")
+				{
+					LL_INFOS("LLControlGroup") << "preserving unrecognized " << getKey()
+											   << " settings variable " << name << LL_ENDL;
+				}
+			}
+
 			declareControl(name, 
 						   typeStringToEnum(control_map["Type"].asString()), 
 						   control_map["Value"], 
@@ -923,7 +972,7 @@ U32 LLControlGroup::loadFromFile(const std::string& filename, bool set_default_v
 						   hidefromsettingseditor
 						   );
 		}
-		
+
 		++validitems;
 	}
 
diff --git a/indra/llxml/llcontrol.h b/indra/llxml/llcontrol.h
index ee7d1d50b7e1de8cb81e372330c9de128fda49ec..e1f9be80ddad26d909449b0a6300f4d50c08b553 100755
--- a/indra/llxml/llcontrol.h
+++ b/indra/llxml/llcontrol.h
@@ -72,8 +72,6 @@ class LLVector3d;
 class LLColor4;
 class LLColor3;
 
-const BOOL NO_PERSIST = FALSE;
-
 typedef enum e_control_type
 {
 	TYPE_U32 = 0,
@@ -100,21 +98,28 @@ class LLControlVariable : public LLRefCount
 	typedef boost::signals2::signal<bool(LLControlVariable* control, const LLSD&), boost_boolean_combiner> validate_signal_t;
 	typedef boost::signals2::signal<void(LLControlVariable* control, const LLSD&, const LLSD&)> commit_signal_t;
 
+	enum ePersist
+	{
+		PERSIST_NO,                 // don't save this var
+		PERSIST_NONDFT,             // save this var if differs from default
+		PERSIST_ALWAYS              // save this var even if has default value
+	};
+
 private:
 	std::string		mName;
 	std::string		mComment;
 	eControlType	mType;
-	bool			mPersist;
+	ePersist		mPersist;
 	bool			mHideFromSettingsEditor;
 	std::vector<LLSD> mValues;
-	
+
 	commit_signal_t mCommitSignal;
 	validate_signal_t mValidateSignal;
 	
 public:
 	LLControlVariable(const std::string& name, eControlType type,
 					  LLSD initial, const std::string& comment,
-					  bool persist = true, bool hidefromsettingseditor = false);
+					  ePersist persist = PERSIST_NONDFT, bool hidefromsettingseditor = false);
 
 	virtual ~LLControlVariable();
 	
@@ -131,8 +136,8 @@ class LLControlVariable : public LLRefCount
 	validate_signal_t* getValidateSignal() { return &mValidateSignal; }
 
 	bool isDefault() { return (mValues.size() == 1); }
-	bool isSaveValueDefault();
-	bool isPersisted() { return mPersist; }
+	bool shouldSave(bool nondefault_only);
+	bool isPersisted() { return mPersist != PERSIST_NO; }
 	bool isHiddenFromSettingsEditor() { return mHideFromSettingsEditor; }
 	LLSD get()			const	{ return getValue(); }
 	LLSD getValue()		const	{ return mValues.back(); }
@@ -142,7 +147,7 @@ class LLControlVariable : public LLRefCount
 	void set(const LLSD& val)	{ setValue(val); }
 	void setValue(const LLSD& value, bool saved_value = TRUE);
 	void setDefaultValue(const LLSD& value);
-	void setPersist(bool state);
+	void setPersist(ePersist);
 	void setHiddenFromSettingsEditor(bool hide);
 	void setComment(const std::string& comment);
 
@@ -207,19 +212,19 @@ class LLControlGroup : public LLInstanceTracker<LLControlGroup, std::string>
 		virtual void apply(const std::string& name, LLControlVariable* control) = 0;
 	};
 	void applyToAll(ApplyFunctor* func);
-	
-	BOOL declareControl(const std::string& name, eControlType type, const LLSD initial_val, const std::string& comment, BOOL persist, BOOL hidefromsettingseditor = FALSE);
-	BOOL declareU32(const std::string& name, U32 initial_val, const std::string& comment, BOOL persist = TRUE);
-	BOOL declareS32(const std::string& name, S32 initial_val, const std::string& comment, BOOL persist = TRUE);
-	BOOL declareF32(const std::string& name, F32 initial_val, const std::string& comment, BOOL persist = TRUE);
-	BOOL declareBOOL(const std::string& name, BOOL initial_val, const std::string& comment, BOOL persist = TRUE);
-	BOOL declareString(const std::string& name, const std::string &initial_val, const std::string& comment, BOOL persist = TRUE);
-	BOOL declareVec3(const std::string& name, const LLVector3 &initial_val,const std::string& comment,  BOOL persist = TRUE);
-	BOOL declareVec3d(const std::string& name, const LLVector3d &initial_val, const std::string& comment, BOOL persist = TRUE);
-	BOOL declareRect(const std::string& name, const LLRect &initial_val, const std::string& comment, BOOL persist = TRUE);
-	BOOL declareColor4(const std::string& name, const LLColor4 &initial_val, const std::string& comment, BOOL persist = TRUE);
-	BOOL declareColor3(const std::string& name, const LLColor3 &initial_val, const std::string& comment, BOOL persist = TRUE);
-	BOOL declareLLSD(const std::string& name, const LLSD &initial_val, const std::string& comment, BOOL persist = TRUE);
+
+	LLControlVariable* declareControl(const std::string& name, eControlType type, const LLSD initial_val, const std::string& comment, LLControlVariable::ePersist persist, BOOL hidefromsettingseditor = FALSE);
+	LLControlVariable* declareU32(const std::string& name, U32 initial_val, const std::string& comment, LLControlVariable::ePersist persist = LLControlVariable::PERSIST_NONDFT);
+	LLControlVariable* declareS32(const std::string& name, S32 initial_val, const std::string& comment, LLControlVariable::ePersist persist = LLControlVariable::PERSIST_NONDFT);
+	LLControlVariable* declareF32(const std::string& name, F32 initial_val, const std::string& comment, LLControlVariable::ePersist persist = LLControlVariable::PERSIST_NONDFT);
+	LLControlVariable* declareBOOL(const std::string& name, BOOL initial_val, const std::string& comment, LLControlVariable::ePersist persist = LLControlVariable::PERSIST_NONDFT);
+	LLControlVariable* declareString(const std::string& name, const std::string &initial_val, const std::string& comment, LLControlVariable::ePersist persist = LLControlVariable::PERSIST_NONDFT);
+	LLControlVariable* declareVec3(const std::string& name, const LLVector3 &initial_val,const std::string& comment,  LLControlVariable::ePersist persist = LLControlVariable::PERSIST_NONDFT);
+	LLControlVariable* declareVec3d(const std::string& name, const LLVector3d &initial_val, const std::string& comment, LLControlVariable::ePersist persist = LLControlVariable::PERSIST_NONDFT);
+	LLControlVariable* declareRect(const std::string& name, const LLRect &initial_val, const std::string& comment, LLControlVariable::ePersist persist = LLControlVariable::PERSIST_NONDFT);
+	LLControlVariable* declareColor4(const std::string& name, const LLColor4 &initial_val, const std::string& comment, LLControlVariable::ePersist persist = LLControlVariable::PERSIST_NONDFT);
+	LLControlVariable* declareColor3(const std::string& name, const LLColor3 &initial_val, const std::string& comment, LLControlVariable::ePersist persist = LLControlVariable::PERSIST_NONDFT);
+	LLControlVariable* declareLLSD(const std::string& name, const LLSD &initial_val, const std::string& comment, LLControlVariable::ePersist persist = LLControlVariable::PERSIST_NONDFT);
 
 	std::string getString(const std::string& name);
 	std::string getText(const std::string& name);
@@ -368,7 +373,7 @@ class LLControlCache : public LLRefCount, public LLInstanceTracker<LLControlCach
 		init_value = convert_to_llsd(default_value);
 		if(type < TYPE_COUNT)
 		{
-			group.declareControl(name, type, init_value, comment, FALSE);
+			group.declareControl(name, type, init_value, comment, LLControlVariable::PERSIST_NO);
 			return true;
 		}
 		return false;
diff --git a/indra/llxml/tests/llcontrol_test.cpp b/indra/llxml/tests/llcontrol_test.cpp
index ede81956ec6879b896ba09be308211f1b002fc67..c273773c9b43a9223dfc43fc7dba44bb76f67934 100755
--- a/indra/llxml/tests/llcontrol_test.cpp
+++ b/indra/llxml/tests/llcontrol_test.cpp
@@ -128,7 +128,11 @@ namespace tut
 	template<> template<>
 	void control_group_t::test<3>()
 	{
-		int results = mCG->loadFromFile(mTestConfigFile.c_str());
+		// Pass default_values = true. This tells loadFromFile() we're loading
+		// a default settings file that declares variables, rather than a user
+		// settings file. When loadFromFile() encounters an unrecognized user
+		// settings variable, it forcibly preserves it (CHOP-962).
+		int results = mCG->loadFromFile(mTestConfigFile.c_str(), true);
 		LLControlVariable* control = mCG->getControl("TestSetting");
 		LLSD new_value = 13;
 		control->setValue(new_value, FALSE);
diff --git a/indra/newview/app_settings/cmd_line.xml b/indra/newview/app_settings/cmd_line.xml
index 7ab7787d77c874b1b3d075001e3e621023a45664..74117dbd85d28535bc79044ae894fb4e6044f547 100755
--- a/indra/newview/app_settings/cmd_line.xml
+++ b/indra/newview/app_settings/cmd_line.xml
@@ -22,7 +22,8 @@
     <map>
       <key>count</key>
       <integer>1</integer>
-      <!-- Special case. Not mapped to a setting. -->
+      <key>map-to</key>
+      <string>CmdLineChannel</string>
     </map>
 
     <key>console</key>
@@ -96,6 +97,8 @@
 0 - low, 1 - medium, 2 - high, 3 - ultra</string>
       <key>count</key>
       <integer>1</integer>
+      <key>map-to</key>
+      <string>RenderQualityPerformance</string>
     </map>
 
     <key>grid</key>
@@ -370,7 +373,8 @@
       <boolean>true</boolean>
       <key>last_option</key>
       <boolean>true</boolean>
-      <!-- Special case. Not mapped to a setting. -->
+      <key>map-to</key>
+      <string>CmdLineLoginLocation</string>
     </map>
 
     <key>url</key>
@@ -381,7 +385,8 @@
       <integer>1</integer>
       <key>last_option</key>
       <boolean>true</boolean>
-      <!-- Special case. Not mapped to a setting. -->
+      <key>map-to</key>
+      <string>CmdLineLoginLocation</string>
     </map>
 
     <key>usersessionsettings</key>
diff --git a/indra/newview/app_settings/settings.xml b/indra/newview/app_settings/settings.xml
index 344079b640c7daac52dd476717171f42d6d601de..4c8860ffe73999544cfc9728ceb3b77c2740fcc2 100755
--- a/indra/newview/app_settings/settings.xml
+++ b/indra/newview/app_settings/settings.xml
@@ -126,6 +126,17 @@
       <key>Value</key>
       <integer>1</integer>
     </map>
+    <key>AnalyzePerformance</key>
+    <map>
+      <key>Comment</key>
+      <string>Request performance analysis for a particular viewer run</string>
+      <key>Persist</key>
+      <integer>0</integer>
+      <key>Type</key>
+      <string>Boolean</string>
+      <key>Value</key>
+      <integer>0</integer>
+    </map>
     <key>AnimateTextures</key>
     <map>
       <key>Comment</key>
@@ -1738,6 +1749,17 @@
       <key>Value</key>
       <integer>0</integer>
     </map>
+    <key>CmdLineChannel</key>
+    <map>
+      <key>Comment</key>
+      <string>Command line specified channel name</string>
+      <key>Persist</key>
+      <integer>0</integer>
+      <key>Type</key>
+      <string>String</string>
+      <key>Value</key>
+      <string />
+    </map>
     <key>CmdLineDisableVoice</key>
     <map>
       <key>Comment</key>
@@ -1784,6 +1806,17 @@
         <string />
       </array>
     </map>
+    <key>CmdLineLoginLocation</key>
+    <map>
+      <key>Comment</key>
+      <string>Startup destination requested on command line</string>
+      <key>Persist</key>
+      <integer>0</integer>
+      <key>Type</key>
+      <string>String</string>
+      <key>Value</key>
+      <string/>
+    </map>
     <key>ConnectAsGod</key>
     <map>
       <key>Comment</key>
@@ -1916,6 +1949,17 @@
       <key>Value</key>
       <integer>262144</integer>
     </map>
+    <key>CrashOnStartup</key>
+    <map>
+      <key>Comment</key>
+      <string>User-requested crash on viewer startup</string>
+      <key>Persist</key>
+      <integer>0</integer>
+      <key>Type</key>
+      <string>Boolean</string>
+      <key>Value</key>
+      <integer>0</integer>
+    </map>
     <key>CreateToolCopyCenters</key>
     <map>
       <key>Comment</key>
@@ -2158,6 +2202,17 @@
       <key>Value</key>
       <integer>0</integer>
     </map>
+    <key>DebugSession</key>
+    <map>
+      <key>Comment</key>
+      <string>Request debugging for a particular viewer session</string>
+      <key>Persist</key>
+      <integer>0</integer>
+      <key>Type</key>
+      <string>Boolean</string>
+      <key>Value</key>
+      <integer>0</integer>
+    </map>
     <key>DebugShowColor</key>
     <map>
       <key>Comment</key>
@@ -2972,6 +3027,17 @@
       <key>Value</key>
       <integer>0</integer>
     </map>
+    <key>DisableCrashLogger</key>
+    <map>
+      <key>Comment</key>
+      <string>Do not send crash report to Linden server</string>
+      <key>Persist</key>
+      <integer>0</integer>
+      <key>Type</key>
+      <string>Boolean</string>
+      <key>Value</key>
+      <integer>0</integer>
+    </map>
     <key>DisableMouseWarp</key>
     <map>
       <key>Comment</key>
@@ -5217,6 +5283,28 @@
       <key>Value</key>
       <integer>0</integer>
     </map>
+    <key>LogMetrics</key>
+    <map>
+      <key>Comment</key>
+      <string>Log viewer metrics</string>
+      <key>Persist</key>
+      <integer>0</integer>
+      <key>Type</key>
+      <string>String</string>
+      <key>Value</key>
+      <string/>
+    </map>
+    <key>LogPerformance</key>
+    <map>
+      <key>Comment</key>
+      <string>Log performance analysis for a particular viewer run</string>
+      <key>Persist</key>
+      <integer>0</integer>
+      <key>Type</key>
+      <string>Boolean</string>
+      <key>Value</key>
+      <integer>0</integer>
+    </map>
     <key>LogTextureNetworkTraffic</key>
     <map>
       <key>Comment</key>
@@ -6394,6 +6482,17 @@
       <key>Value</key>
       <integer>0</integer>
     </map>
+    <key>NoQuickTime</key>
+    <map>
+      <key>Comment</key>
+      <string>Disable QuickTime for a particular viewer run</string>
+      <key>Persist</key>
+      <integer>0</integer>
+      <key>Type</key>
+      <string>Boolean</string>
+      <key>Value</key>
+      <integer>0</integer>
+    </map>
     <key>NoVerifySSLCert</key>
     <map>
       <key>Comment</key>
@@ -9642,6 +9741,17 @@
       <key>Value</key>
       <integer>1</integer>
     </map>
+    <key>ReplaySession</key>
+    <map>
+      <key>Comment</key>
+      <string>Request replay of previously-recorded pilot file</string>
+      <key>Persist</key>
+      <integer>0</integer>
+      <key>Type</key>
+      <string>Boolean</string>
+      <key>Value</key>
+      <integer>0</integer>
+    </map>
     <key>RotateRight</key>
     <map>
       <key>Comment</key>
@@ -12858,12 +12968,13 @@
     <key>UserLoginInfo</key>
     <map>
       <key>Comment</key>
-      <string>Users loging data.</string>
+      <string>User login data.</string>
       <key>Persist</key>
       <integer>1</integer>
       <key>Type</key>
       <string>LLSD</string>
       <key>Value</key>
+      <string/>
     </map>
     <key>VFSOldSize</key>
     <map>
diff --git a/indra/newview/app_settings/settings_files.xml b/indra/newview/app_settings/settings_files.xml
index bfc09286e39abd63cadb21d20bf4928230fa690b..4a9e522a96dd036cef7e29b96580d390bb02f539 100755
--- a/indra/newview/app_settings/settings_files.xml
+++ b/indra/newview/app_settings/settings_files.xml
@@ -4,6 +4,9 @@
     <file name="Global"
           file_name="settings.xml"
           required="true"/>
+    <file name="Global"
+          file_name="settings_install.xml"
+          required="false"/>
     <file name="PerAccount"
           file_name="settings_per_account.xml"
           required="true"/>
diff --git a/indra/newview/linux_tools/wrapper.sh b/indra/newview/linux_tools/wrapper.sh
index d8440eebf1c54c4b8a1f687a666285229c71c330..c23401d5a661fd954536fadf9c9b8fa0c7da3779 100755
--- a/indra/newview/linux_tools/wrapper.sh
+++ b/indra/newview/linux_tools/wrapper.sh
@@ -121,37 +121,21 @@ export SAVED_LD_LIBRARY_PATH="${LD_LIBRARY_PATH}"
 
 export LD_LIBRARY_PATH="$PWD/lib:${LD_LIBRARY_PATH}"
 
-# Have to deal specially with gridargs.dat; typical contents look like:
-# --channel "Second Life Test"  --settings settings_test.xml
-# Simply embedding $(<etc/gridargs.dat) into a command line treats each of
-# Second, Life and Developer as separate args -- no good. We need bash to
-# process quotes using eval.
-# First, check if we have been instructed to skip reading in gridargs.dat:
-skip_gridargs=false
-argnum=0
+# Copy "$@" to ARGS array specifically to delete the --skip-gridargs switch.
+# The gridargs.dat file is no more, but we still want to avoid breaking
+# scripts that invoke this one with --skip-gridargs.
+ARGS=()
 for ARG in "$@"; do
-    if [ "--skip-gridargs" == "$ARG" ]; then
-        skip_gridargs=true
-    else
-        ARGS[$argnum]="$ARG"
-        argnum=$(($argnum+1))
+    if [ "--skip-gridargs" != "$ARG" ]; then
+        ARGS[${#ARGS[*]}]="$ARG"
     fi
 done
 
-# Second, read it without scanning, then scan that string. Break quoted words
-# into a bash array. Note that if gridargs.dat is empty, or contains only
-# whitespace, the resulting gridargs array will be empty -- zero entries --
-# therefore "${gridargs[@]}" entirely vanishes from the command line below,
-# just as we want.
-if ! $skip_gridargs ; then
-    eval gridargs=("$(<etc/gridargs.dat)")
-fi
-
 # Run the program.
 # Don't quote $LL_WRAPPER because, if empty, it should simply vanish from the
-# command line. But DO quote "$@": preserve separate args as individually
-# quoted. Similar remarks about the contents of gridargs.
-$LL_WRAPPER bin/do-not-directly-run-secondlife-bin "${gridargs[@]}" "${ARGS[@]}"
+# command line. But DO quote "${ARGS[@]}": preserve separate args as
+# individually quoted.
+$LL_WRAPPER bin/do-not-directly-run-secondlife-bin "${ARGS[@]}"
 LL_RUN_ERR=$?
 
 # Handle any resulting errors
diff --git a/indra/newview/llagent.cpp b/indra/newview/llagent.cpp
index 3e94c5edf758ade2e383e3f2bf00aea8ddfbb541..05f38244854742a3d76ca0f1be09963d3c61b4d2 100755
--- a/indra/newview/llagent.cpp
+++ b/indra/newview/llagent.cpp
@@ -433,7 +433,7 @@ void LLAgent::init()
 {
 	mMoveTimer.start();
 
-	gSavedSettings.declareBOOL("SlowMotionAnimation", FALSE, "Declared in code", FALSE);
+	gSavedSettings.declareBOOL("SlowMotionAnimation", FALSE, "Declared in code", LLControlVariable::PERSIST_NO);
 	gSavedSettings.getControl("SlowMotionAnimation")->getSignal()->connect(boost::bind(&handleSlowMotionAnimation, _2));
 	
 	// *Note: this is where LLViewerCamera::getInstance() used to be constructed.
diff --git a/indra/newview/llappviewer.cpp b/indra/newview/llappviewer.cpp
index f92274dbbd84d0ed7b80bab78b745b4355ef61ac..b2aadf9cc091580c99f770ee711f7c09b9cb35ad 100755
--- a/indra/newview/llappviewer.cpp
+++ b/indra/newview/llappviewer.cpp
@@ -668,7 +668,6 @@ LLAppViewer::LLAppViewer() :
 	mSecondInstance(false),
 	mSavedFinalSnapshot(false),
 	mSavePerAccountSettings(false),		// don't save settings on logout unless login succeeded.
-	mForceGraphicsDetail(false),
 	mQuitRequested(false),
 	mLogoutRequestSent(false),
 	mYieldTime(-1),
@@ -2307,17 +2306,24 @@ void LLAppViewer::loadColorSettings()
 	LLUIColorTable::instance().loadFromSettings();
 }
 
+namespace
+{
+    void handleCommandLineError(LLControlGroupCLP& clp)
+    {
+		llwarns << "Error parsing command line options. Command Line options ignored."  << llendl;
+
+		llinfos << "Command line usage:\n" << clp << llendl;
+
+		OSMessageBox(STRINGIZE(LLTrans::getString("MBCmdLineError") << clp.getErrorMessage()),
+					 LLStringUtil::null,
+					 OSMB_OK);
+    }
+} // anonymous namespace
+
 bool LLAppViewer::initConfiguration()
 {	
 	//Load settings files list
 	std::string settings_file_list = gDirUtilp->getExpandedFilename(LL_PATH_APP_SETTINGS, "settings_files.xml");
-	//LLControlGroup settings_control("SettingsFiles");
-	//llinfos << "Loading settings file list " << settings_file_list << llendl;
-	//if (0 == settings_control.loadFromFile(settings_file_list))
-	//{
- //       llerrs << "Cannot load default configuration file " << settings_file_list << llendl;
-	//}
-
 	LLXMLNodePtr root;
 	BOOL success  = LLXMLNode::parseFile(settings_file_list, root, NULL);
 	if (!success)
@@ -2376,9 +2382,7 @@ bool LLAppViewer::initConfiguration()
 	{
 		c->setValue(true, false);
 	}
-#endif
 
-#ifndef	LL_RELEASE_FOR_DOWNLOAD
 	gSavedSettings.setBOOL("QAMode", TRUE );
 	gSavedSettings.setS32("WatchdogEnabled", 0);
 #endif
@@ -2414,13 +2418,7 @@ bool LLAppViewer::initConfiguration()
 
 	if(!initParseCommandLine(clp))
 	{
-		llwarns	<< "Error parsing command line options.	Command	Line options ignored."  << llendl;
-		
-		llinfos	<< "Command	line usage:\n" << clp << llendl;
-
-		std::ostringstream msg;
-		msg << LLTrans::getString("MBCmdLineError") << clp.getErrorMessage();
-		OSMessageBox(msg.str(),LLStringUtil::null,OSMB_OK);
+		handleCommandLineError(clp);
 		return false;
 	}
 	
@@ -2467,12 +2465,16 @@ bool LLAppViewer::initConfiguration()
 	loadSettingsFromDirectory("UserSession");
 
 	// - apply command line settings 
-	clp.notify(); 
+	if (! clp.notify())
+	{
+		handleCommandLineError(clp);
+		return false;
+	}
 
 	// Register the core crash option as soon as we can
 	// if we want gdb post-mortem on cores we need to be up and running
 	// ASAP or we might miss init issue etc.
-	if(clp.hasOption("disablecrashlogger"))
+	if(gSavedSettings.getBOOL("DisableCrashLogger"))
 	{
 		llwarns << "Crashes will be handled by system, stack trace logs and crash logger are both disabled" << llendl;
 		LLAppViewer::instance()->disableCrashlogger();
@@ -2545,91 +2547,52 @@ bool LLAppViewer::initConfiguration()
         }
     }
 
-    if(clp.hasOption("channel"))
-    {
-		LLVersionInfo::resetChannel(clp.getOption("channel")[0]);
+	std::string CmdLineChannel(gSavedSettings.getString("CmdLineChannel"));
+	if(! CmdLineChannel.empty())
+	{
+		LLVersionInfo::resetChannel(CmdLineChannel);
 	}
 
 	// If we have specified crash on startup, set the global so we'll trigger the crash at the right time
-	if(clp.hasOption("crashonstartup"))
-	{
-		gCrashOnStartup = TRUE;
-	}
+	gCrashOnStartup = gSavedSettings.getBOOL("CrashOnStartup");
 
-	if (clp.hasOption("logperformance"))
+	if (gSavedSettings.getBOOL("LogPerformance"))
 	{
 		LLFastTimer::sLog = TRUE;
 		LLFastTimer::sLogName = std::string("performance");		
 	}
-	
-	if (clp.hasOption("logmetrics"))
- 	{
- 		LLFastTimer::sMetricLog = TRUE ;
-		// '--logmetrics' can be specified with a named test metric argument so the data gathering is done only on that test
-		// In the absence of argument, every metric is gathered (makes for a rather slow run and hard to decipher report...)
-		std::string test_name = clp.getOption("logmetrics")[0];
+
+	std::string test_name(gSavedSettings.getString("LogMetrics"));
+	if (! test_name.empty())
+	{
+		LLFastTimer::sMetricLog = TRUE ;
+		// '--logmetrics' is specified with a named test metric argument so the data gathering is done only on that test
+		// In the absence of argument, every metric would be gathered (makes for a rather slow run and hard to decipher report...)
 		llinfos << "'--logmetrics' argument : " << test_name << llendl;
-		if (test_name == "")
-		{
-			llwarns << "No '--logmetrics' argument given, will output all metrics to " << DEFAULT_METRIC_NAME << llendl;
-			LLFastTimer::sLogName = DEFAULT_METRIC_NAME;
-		}
-		else
-		{
-			LLFastTimer::sLogName = test_name;
-		}
+		LLFastTimer::sLogName = test_name;
  	}
 
 	if (clp.hasOption("graphicslevel"))
 	{
-		const LLCommandLineParser::token_vector_t& value = clp.getOption("graphicslevel");
-        if(value.size() != 1)
-        {
-			llwarns << "Usage: -graphicslevel <0-3>" << llendl;
-        }
-        else
-        {
-			std::string detail = value.front();
-			mForceGraphicsDetail = TRUE;
-			
-			switch (detail.c_str()[0])
-			{
-				case '0': 
-					gSavedSettings.setU32("RenderQualityPerformance", 0);		
-					break;
-				case '1': 
-					gSavedSettings.setU32("RenderQualityPerformance", 1);		
-					break;
-				case '2': 
-					gSavedSettings.setU32("RenderQualityPerformance", 2);		
-					break;
-				case '3': 
-					gSavedSettings.setU32("RenderQualityPerformance", 3);		
-					break;
-				default:
-					mForceGraphicsDetail = FALSE;
-					llwarns << "Usage: -graphicslevel <0-3>" << llendl;
-					break;
-			}
-        }
-	}
-
-	if (clp.hasOption("analyzeperformance"))
-	{
-		LLFastTimerView::sAnalyzePerformance = TRUE;
+		// User explicitly requested --graphicslevel on the command line. We
+		// expect this switch has already set RenderQualityPerformance. Check
+		// that value for validity.
+		U32 graphicslevel = gSavedSettings.getU32("RenderQualityPerformance");
+		if (LLFeatureManager::instance().isValidGraphicsLevel(graphicslevel))
+		{
+			// graphicslevel is valid: save it and engage it later. Capture
+			// the requested value separately from the settings variable
+			// because, if this is the first run, LLViewerWindow's constructor
+			// will call LLFeatureManager::applyRecommendedSettings(), which
+			// overwrites this settings variable!
+			mForceGraphicsLevel = graphicslevel;
+		}
 	}
 
-	if (clp.hasOption("replaysession"))
-	{
-		gAgentPilot.setReplaySession(TRUE);
-	}
+	LLFastTimerView::sAnalyzePerformance = gSavedSettings.getBOOL("AnalyzePerformance");
+	gAgentPilot.setReplaySession(gSavedSettings.getBOOL("ReplaySession"));
 
-	if (clp.hasOption("nonotifications"))
-	{
-		gSavedSettings.getControl("IgnoreAllNotifications")->setValue(true, false);
-	}
-	
-	if (clp.hasOption("debugsession"))
+	if (gSavedSettings.getBOOL("DebugSession"))
 	{
 		gDebugSession = TRUE;
 		gDebugGL = TRUE;
@@ -2654,20 +2617,16 @@ bool LLAppViewer::initConfiguration()
     // What can happen is that someone can use IE (or potentially 
     // other browsers) and do the rough equivalent of command 
     // injection and steal passwords. Phoenix. SL-55321
-    if(clp.hasOption("url"))
-    {
-		LLStartUp::setStartSLURL(LLSLURL(clp.getOption("url")[0]));
-		if(LLStartUp::getStartSLURL().getType() == LLSLURL::LOCATION) 
-		{  
-			LLGridManager::getInstance()->setGridChoice(LLStartUp::getStartSLURL().getGrid());
-			
-		}  
-    }
-    else if(clp.hasOption("slurl"))
-    {
-		LLSLURL start_slurl(clp.getOption("slurl")[0]);
+	std::string CmdLineLoginLocation(gSavedSettings.getString("CmdLineLoginLocation"));
+	if(! CmdLineLoginLocation.empty())
+	{
+		LLSLURL start_slurl(CmdLineLoginLocation);
 		LLStartUp::setStartSLURL(start_slurl);
-    }
+		if(start_slurl.getType() == LLSLURL::LOCATION) 
+		{  
+			LLGridManager::getInstance()->setGridChoice(start_slurl.getGrid());
+		}
+	}
 
 	const LLControlVariable* skinfolder = gSavedSettings.getControl("SkinCurrent");
 	if(skinfolder && LLStringUtil::null != skinfolder->getValue().asString())
@@ -2810,9 +2769,8 @@ bool LLAppViewer::initConfiguration()
 		LL_DEBUGS("AppInit")<<"set start from NextLoginLocation: "<<nextLoginLocation<<LL_ENDL;
 		LLStartUp::setStartSLURL(LLSLURL(nextLoginLocation));
 	}
-	else if (   (   clp.hasOption("login") || clp.hasOption("autologin"))
-			 && !clp.hasOption("url")
-			 && !clp.hasOption("slurl"))
+	else if ((clp.hasOption("login") || clp.hasOption("autologin"))
+			 && gSavedSettings.getString("CmdLineLoginLocation").empty())
 	{
 		// If automatic login from command line with --login switch
 		// init StartSLURL location.
@@ -3186,11 +3144,12 @@ bool LLAppViewer::initWindow()
 	// Initialize GL stuff
 	//
 
-	if (mForceGraphicsDetail)
+	if (mForceGraphicsLevel)
 	{
-		LLFeatureManager::getInstance()->setGraphicsLevel(gSavedSettings.getU32("RenderQualityPerformance"), false);
+		LLFeatureManager::getInstance()->setGraphicsLevel(*mForceGraphicsLevel, false);
+		gSavedSettings.setU32("RenderQualityPerformance", *mForceGraphicsLevel);
 	}
-			
+
 	// Set this flag in case we crash while initializing GL
 	gSavedSettings.setBOOL("RenderInitError", TRUE);
 	gSavedSettings.saveToFile( gSavedSettings.getString("ClientSettingsFile"), TRUE );
diff --git a/indra/newview/llappviewer.h b/indra/newview/llappviewer.h
index cd91ae8b2bc9c3ba76b67418270af5c6d939790d..3af360b52991b3bcf53c9412e951f05b4da4cf6f 100755
--- a/indra/newview/llappviewer.h
+++ b/indra/newview/llappviewer.h
@@ -32,6 +32,7 @@
 #include "llsys.h"			// for LLOSInfo
 #include "lltimer.h"
 #include "llappcorehttp.h"
+#include <boost/optional.hpp>
 
 class LLCommandLineParser;
 class LLFrameTimer;
@@ -258,7 +259,7 @@ class LLAppViewer : public LLApp
 	bool mSavedFinalSnapshot;
 	bool mSavePerAccountSettings;		// only save per account settings if login succeeded
 
-	bool mForceGraphicsDetail;
+	boost::optional<U32> mForceGraphicsLevel;
 
     bool mQuitRequested;				// User wants to quit, may have modified documents open.
     bool mLogoutRequestSent;			// Disconnect message sent to simulator, no longer safe to send messages to the sim.
diff --git a/indra/newview/llappviewermacosx.cpp b/indra/newview/llappviewermacosx.cpp
index 4d340cafa9dfed9769b5a56382e32886a611fd35..c7b437598c2d55c7f90b3ee50ea641898a97c6ff 100755
--- a/indra/newview/llappviewermacosx.cpp
+++ b/indra/newview/llappviewermacosx.cpp
@@ -148,28 +148,13 @@ bool LLAppViewerMacOSX::initParseCommandLine(LLCommandLineParser& clp)
 	// The next two lines add the support for parsing the mac -psn_XXX arg.
 	clp.addOptionDesc("psn", NULL, 1, "MacOSX process serial number");
 	clp.setCustomParser(parse_psn);
-	
-    // First read in the args from arguments txt.
-    const char* filename = "arguments.txt";
-	llifstream ifs(filename, llifstream::binary);
-	if (!ifs.is_open())
-	{
-		llwarns << "Unable to open file" << filename << llendl;
-		return false;
-	}
-	
-	if(clp.parseCommandLineFile(ifs) == false)
-	{
-		return false;
-	}
 
-	// Then parse the user's command line, so that any --url arg can appear last
-	// Succesive calls to clp.parse... will NOT override earlier options. 
+	// parse the user's command line
 	if(clp.parseCommandLine(gArgC, gArgV) == false)
 	{
 		return false;
 	}
-    	
+
 	// Get the user's preferred language string based on the Mac OS localization mechanism.
 	// To add a new localization:
 		// go to the "Resources" section of the project
diff --git a/indra/newview/llcommandlineparser.cpp b/indra/newview/llcommandlineparser.cpp
index 17d403bbe1040b492658123af45a8e606e99037a..a6384ded1251b67fc48578b3c5978de0553c6352 100755
--- a/indra/newview/llcommandlineparser.cpp
+++ b/indra/newview/llcommandlineparser.cpp
@@ -38,16 +38,23 @@
 #endif
 
 #include <boost/program_options.hpp>
+#include <boost/lexical_cast.hpp>
 #include <boost/bind.hpp>
-#include<boost/tokenizer.hpp>
+#include <boost/tokenizer.hpp>
+#include <boost/assign/list_of.hpp>
 
 #if _MSC_VER
 #   pragma warning(pop)
 #endif
 
 #include "llsdserialize.h"
+#include "llerror.h"
+#include "stringize.h"
+#include <string>
+#include <set>
 #include <iostream>
 #include <sstream>
+#include <typeinfo>
 
 #include "llcontrol.h"
 
@@ -63,10 +70,22 @@ namespace po = boost::program_options;
 // This could be good or bad, and probably won't matter for most use cases.
 namespace 
 {
+    // List of command-line switches that can't map-to settings variables.
+    // Going forward, we want every new command-line switch to map-to some
+    // settings variable. This list is used to validate that.
+    const std::set<std::string> unmapped_options = boost::assign::list_of
+        ("help")
+        ("set")
+        ("setdefault")
+        ("settings")
+        ("sessionsettings")
+        ("usersessionsettings")
+    ;
+
     po::options_description gOptionsDesc;
     po::positional_options_description gPositionalOptions;
 	po::variables_map gVariableMap;
-    
+
     const LLCommandLineParser::token_vector_t gEmptyValue;
 
     void read_file_into_string(std::string& str, const std::basic_istream < char >& file)
@@ -384,9 +403,19 @@ bool LLCommandLineParser::parseCommandLineFile(const std::basic_istream < char >
     return parseCommandLineString(args);
 }
 
-void LLCommandLineParser::notify()
+bool LLCommandLineParser::notify()
 {
-    po::notify(gVariableMap);    
+    try
+    {
+        po::notify(gVariableMap);
+        return true;
+    }
+    catch (const LLCLPError& e)
+    {
+        llwarns << "Caught Error: " << e.what() << llendl;
+        mErrorMsg = e.what();
+        return false;
+    }
 }
 
 void LLCommandLineParser::printOptions() const
@@ -428,43 +457,129 @@ const LLCommandLineParser::token_vector_t& LLCommandLineParser::getOption(const
 //----------------------------------------------------------------------------
 // LLControlGroupCLP defintions
 //----------------------------------------------------------------------------
+namespace {
+LLCommandLineParser::token_vector_t::value_type
+onevalue(const std::string& option,
+         const LLCommandLineParser::token_vector_t& value)
+{
+    if (value.empty())
+    {
+        // What does it mean when the user specifies a command-line switch
+        // that requires a value, but omits the value? Complain.
+        throw LLCLPError(STRINGIZE("No value specified for --" << option << "!"));
+    }
+    else if (value.size() > 1)
+    {
+        llwarns << "Ignoring extra tokens specified for --"
+                << option << "." << llendl; 
+    }
+    return value[0];
+}
+
+void badvalue(const std::string& option,
+              const std::string& varname,
+              const std::string& type,
+              const std::string& value)
+{
+    // If the user passes an unusable value for a command-line switch, it
+    // seems like a really bad idea to just ignore it, even with a log
+    // warning.
+    throw LLCLPError(STRINGIZE("Invalid value specified by command-line switch '" << option
+                               << "' for variable '" << varname << "' of type " << type
+                               << ": '" << value << "'"));
+}
+
+template <typename T>
+T convertTo(const std::string& option,
+            const std::string& varname,
+            const LLCommandLineParser::token_vector_t::value_type& value)
+{
+    try
+    {
+        return boost::lexical_cast<T>(value);
+    }
+    catch (const boost::bad_lexical_cast&)
+    {
+        badvalue(option, varname, typeid(T).name(), value);
+        // bogus return; compiler unaware that badvalue() won't return
+        return T();
+    }
+}
+
 void setControlValueCB(const LLCommandLineParser::token_vector_t& value, 
-                       const std::string& opt_name, 
-                       LLControlGroup* ctrlGroup)
+                       const std::string& option, 
+                       LLControlVariable* ctrl)
 {
-    // *FIX: Do sematic conversion here.
+    // *FIX: Do semantic conversion here.
     // LLSD (ImplString) Is no good for doing string to type conversion for...
     // booleans
     // compound types
     // ?...
 
-    LLControlVariable* ctrl = ctrlGroup->getControl(opt_name);
     if(NULL != ctrl)
     {
         switch(ctrl->type())
         {
         case TYPE_BOOLEAN:
-            if(value.size() > 1)
+            if (value.empty())
             {
-                llwarns << "Ignoring extra tokens." << llendl; 
+                // Boolean-valued command-line switches are unusual. If you
+                // simply specify the switch without an explicit value, we can
+                // infer you mean 'true'.
+                ctrl->setValue(LLSD(true), false);
             }
-              
-            if(value.size() > 0)
+            else
             {
+                // Only call onevalue() AFTER handling value.empty() case!
+                std::string token(onevalue(option, value));
+            
                 // There's a token. check the string for true/false/1/0 etc.
                 BOOL result = false;
-                BOOL gotSet = LLStringUtil::convertToBOOL(value[0], result);
-                if(gotSet)
+                BOOL gotSet = LLStringUtil::convertToBOOL(token, result);
+                if (gotSet)
                 {
                     ctrl->setValue(LLSD(result), false);
                 }
+                else
+                {
+                    badvalue(option, ctrl->getName(), "bool", token);
+                }
+            }
+            break;
+
+        case TYPE_U32:
+        {
+            std::string token(onevalue(option, value));
+            // To my surprise, for an unsigned target, lexical_cast() doesn't
+            // complain about an input string such as "-17". In that case, you
+            // get a very large positive result. So for U32, make sure there's
+            // no minus sign!
+            if (token.find('-') == std::string::npos)
+            {
+                ctrl->setValue(LLSD::Integer(convertTo<U32>(option, ctrl->getName(), token)),
+                               false);
             }
             else
             {
-                ctrl->setValue(LLSD(true), false);
+                badvalue(option, ctrl->getName(), "unsigned", token);
             }
             break;
+        }
+
+        case TYPE_S32:
+            ctrl->setValue(convertTo<S32>(option, ctrl->getName(),
+                                          onevalue(option, value)), false);
+            break;
+
+        case TYPE_F32:
+            ctrl->setValue(convertTo<F32>(option, ctrl->getName(),
+                                          onevalue(option, value)), false);
+            break;
 
+        // It appears that no one has yet tried to define a command-line
+        // switch mapped to a settings variable of TYPE_VEC3, TYPE_VEC3D,
+        // TYPE_RECT, TYPE_COL4, TYPE_COL3. Such types would certainly seem to
+        // call for a bit of special handling here...
         default:
             {
                 // For the default types, let llsd do the conversion.
@@ -481,16 +596,9 @@ void setControlValueCB(const LLCommandLineParser::token_vector_t& value,
 
                     ctrl->setValue(llsdArray, false);
                 }
-                else if(value.size() > 0)
+                else
                 {
-					if(value.size() > 1)
-					{
-						llwarns << "Ignoring extra tokens mapped to the setting: " << opt_name << "." << llendl; 
-					}
-
-                    LLSD llsdValue;
-                    llsdValue.assign(LLSD::String(value[0]));
-                    ctrl->setValue(llsdValue, false);
+                    ctrl->setValue(onevalue(option, value), false);
                 }
             }
             break;
@@ -498,12 +606,14 @@ void setControlValueCB(const LLCommandLineParser::token_vector_t& value,
     }
     else
     {
-        llwarns << "Command Line option mapping '" 
-            << opt_name 
-            << "' not found! Ignoring." 
-            << llendl;
+        // This isn't anything a user can affect -- it's a misconfiguration on
+        // the part of the coder. Rub the coder's nose in the problem right
+        // away so even preliminary testing will surface it.
+        llerrs << "Command Line option --" << option
+               << " maps to unknown setting!" << llendl;
     }
 }
+} // anonymous namespace
 
 void LLControlGroupCLP::configure(const std::string& config_filename, LLControlGroup* controlGroup)
 {
@@ -561,11 +671,37 @@ void LLControlGroupCLP::configure(const std::string& config_filename, LLControlG
             }
 
             boost::function1<void, const token_vector_t&> callback;
-            if(option_params.has("map-to") && (NULL != controlGroup))
+            if (! option_params.has("map-to"))
+            {
+                // If this option isn't mapped to a settings variable, is it
+                // one of the ones for which that's unreasonable, or did
+                // someone carelessly add a new option? (Make all these
+                // configuration errors fatal so a maintainer will catch them
+                // right away.)
+                std::set<std::string>::const_iterator found = unmapped_options.find(long_name);
+                if (found == unmapped_options.end())
+                {
+                    llerrs << "New command-line option " << long_name
+                           << " should map-to a variable in settings.xml" << llendl;
+                }
+            }
+            else                    // option specifies map-to
             {
                 std::string controlName = option_params["map-to"].asString();
-                callback = boost::bind(setControlValueCB, _1, 
-                                       controlName, controlGroup);
+                if (! controlGroup)
+                {
+                    llerrs << "Must pass gSavedSettings to LLControlGroupCLP::configure() for "
+                           << long_name << " (map-to " << controlName << ")" << llendl;
+                }
+
+                LLControlVariable* ctrl = controlGroup->getControl(controlName);
+                if (! ctrl)
+                {
+                    llerrs << "Option " << long_name << " specifies map-to " << controlName
+                           << " which does not exist" << llendl;
+                }
+
+                callback = boost::bind(setControlValueCB, _1, long_name, ctrl);
             }
 
             this->addOptionDesc(
diff --git a/indra/newview/llcommandlineparser.h b/indra/newview/llcommandlineparser.h
index 44f2a268431edbb64917cc4f12217b7e7b3c113e..71388b8217ec700d3cb711475f96bb2bc0a054ab 100755
--- a/indra/newview/llcommandlineparser.h
+++ b/indra/newview/llcommandlineparser.h
@@ -86,7 +86,7 @@ class LLCommandLineParser
 	 * 
 	 * Use this to handle the results of parsing. 
 	 */
-	void notify();
+	bool notify();
 	
 	/** @brief Print a description of the configured options.
 	 *
diff --git a/indra/newview/llfeaturemanager.cpp b/indra/newview/llfeaturemanager.cpp
index ddb9d3bc4369ab4d03c2dcbd41884776158e5488..9d292ce7bb7a7f3fe6f66642715bcc0c4e9b3dad 100755
--- a/indra/newview/llfeaturemanager.cpp
+++ b/indra/newview/llfeaturemanager.cpp
@@ -30,6 +30,7 @@
 #include <fstream>
 
 #include <boost/regex.hpp>
+#include <boost/assign/list_of.hpp>
 
 #include "llfeaturemanager.h"
 #include "lldir.h"
@@ -52,6 +53,8 @@
 #include "llboost.h"
 #include "llweb.h"
 #include "llviewershadermgr.h"
+#include "llstring.h"
+#include "stringize.h"
 
 #if LL_WINDOWS
 #include "lldxhardware.h"
@@ -187,6 +190,55 @@ void LLFeatureList::dump()
 	LL_DEBUGS("RenderInit") << LL_ENDL;
 }
 
+static const std::vector<std::string> sGraphicsLevelNames = boost::assign::list_of
+	("Low")
+	("LowMid")
+	("Mid")
+	("MidHigh")
+	("High")
+	("HighUltra")
+	("Ultra")
+;
+
+U32 LLFeatureManager::getMaxGraphicsLevel() const
+{
+	return sGraphicsLevelNames.size() - 1;
+}
+
+bool LLFeatureManager::isValidGraphicsLevel(U32 level) const
+{
+	return (level <= getMaxGraphicsLevel());
+}
+
+std::string LLFeatureManager::getNameForGraphicsLevel(U32 level) const
+{
+	if (isValidGraphicsLevel(level))
+	{
+		return sGraphicsLevelNames[level];
+	}
+	return STRINGIZE("Invalid graphics level " << level << ", valid are 0 .. "
+					 << getMaxGraphicsLevel());
+}
+
+S32 LLFeatureManager::getGraphicsLevelForName(const std::string& name) const
+{
+	const std::string FixedFunction("FixedFunction");
+	std::string rname(name);
+	if (LLStringUtil::endsWith(rname, FixedFunction))
+	{
+		// chop off any "FixedFunction" suffix
+		rname = rname.substr(0, rname.length() - FixedFunction.length());
+	}
+	for (S32 i(0), iend(getMaxGraphicsLevel()); i <= iend; ++i)
+	{
+		if (sGraphicsLevelNames[i] == rname)
+		{
+			return i;
+		}
+	}
+	return -1;
+}
+
 LLFeatureList *LLFeatureManager::findMask(const std::string& name)
 {
 	if (mMaskList.count(name))
@@ -620,7 +672,7 @@ void LLFeatureManager::applyRecommendedSettings()
 {
 	// apply saved settings
 	// cap the level at 2 (high)
-	S32 level = llmax(GPU_CLASS_0, llmin(mGPUClass, GPU_CLASS_5));
+	U32 level = llmax(GPU_CLASS_0, llmin(mGPUClass, GPU_CLASS_5));
 
 	llinfos << "Applying Recommended Features" << llendl;
 
@@ -696,62 +748,33 @@ void LLFeatureManager::applyFeatures(bool skipFeatures)
 	}
 }
 
-void LLFeatureManager::setGraphicsLevel(S32 level, bool skipFeatures)
+void LLFeatureManager::setGraphicsLevel(U32 level, bool skipFeatures)
 {
 	LLViewerShaderMgr::sSkipReload = true;
 
 	applyBaseMasks();
-	
-	switch (level)
+
+	// if we're passed an invalid level, default to "Low"
+	std::string features(isValidGraphicsLevel(level)? getNameForGraphicsLevel(level) : "Low");
+	if (features == "Low")
 	{
-		case 0:
 #if LL_DARWIN
-			// This Mac-specific change is to insure that we force 'Basic Shaders' for all Mac
-			// systems which support them instead of falling back to fixed-function unnecessarily
-			// MAINT-2157
-			//
-			if (gGLManager.mGLVersion < 2.1f)
-			{
-				maskFeatures("LowFixedFunction");			
-			}
-			else
-			{ //same as low, but with "Basic Shaders" enabled
-				maskFeatures("Low");
-			}
+		// This Mac-specific change is to insure that we force 'Basic Shaders' for all Mac
+		// systems which support them instead of falling back to fixed-function unnecessarily
+		// MAINT-2157
+		if (gGLManager.mGLVersion < 2.1f)
 #else
-			if (gGLManager.mGLVersion < 3.f || gGLManager.mIsIntel)
-			{ //only use fixed function by default if GL version < 3.0 or this is an intel graphics chip
-				maskFeatures("LowFixedFunction");			
-			}
-			else
-			{ //same as low, but with "Basic Shaders" enabled
-				maskFeatures("Low");
-			}
+		// only use fixed function by default if GL version < 3.0 or this is an intel graphics chip
+		if (gGLManager.mGLVersion < 3.f || gGLManager.mIsIntel)
 #endif
-			break;
-		case 1:
-			maskFeatures("LowMid");
-			break;
-		case 2:
-			maskFeatures("Mid");
-			break;
-		case 3:
-			maskFeatures("MidHigh");
-			break;
-		case 4:
-			maskFeatures("High");
-			break;
-		case 5:
-			maskFeatures("HighUltra");
-			break;
-		case 6:
-			maskFeatures("Ultra");
-			break;
-		default:
-			maskFeatures("Low");
-			break;
+		{
+            // same as Low, but with "Basic Shaders" disabled
+			features = "LowFixedFunction";
+		}
 	}
 
+	maskFeatures(features);
+
 	applyFeatures(skipFeatures);
 
 	LLViewerShaderMgr::sSkipReload = false;
diff --git a/indra/newview/llfeaturemanager.h b/indra/newview/llfeaturemanager.h
index ad72c167432e838d6adeb55ac0701efb5905e57d..3b8d2512362b298c8b4a57c3ee0a8a236b5cb598 100755
--- a/indra/newview/llfeaturemanager.h
+++ b/indra/newview/llfeaturemanager.h
@@ -134,8 +134,18 @@ class LLFeatureManager : public LLFeatureList, public LLSingleton<LLFeatureManag
 	// skipFeatures forces skipping of mostly hardware settings
 	// that we don't want to change when we change graphics
 	// settings
-	void setGraphicsLevel(S32 level, bool skipFeatures);
-	
+	void setGraphicsLevel(U32 level, bool skipFeatures);
+
+	// What 'level' values are valid to pass to setGraphicsLevel()?
+	// 0 is the low end...
+	U32 getMaxGraphicsLevel() const;
+	bool isValidGraphicsLevel(U32 level) const;
+
+	// setGraphicsLevel() levels have names.
+	std::string getNameForGraphicsLevel(U32 level) const;
+	// returns -1 for unrecognized name (hence S32 rather than U32)
+	S32 getGraphicsLevelForName(const std::string& name) const;
+
 	void applyBaseMasks();
 	void applyRecommendedSettings();
 
diff --git a/indra/newview/llfloaterabout.cpp b/indra/newview/llfloaterabout.cpp
index 83fb887d81b3e2ad2c19fa193886d19e7ba3aa3e..163f294d2a13bc7e1c7ef47cd8af3dc23f16cfab 100755
--- a/indra/newview/llfloaterabout.cpp
+++ b/indra/newview/llfloaterabout.cpp
@@ -33,8 +33,10 @@
 
 // Viewer includes
 #include "llagent.h"
+#include "llagentui.h"
 #include "llappviewer.h" 
 #include "llsecondlifeurls.h"
+#include "llslurl.h"
 #include "llvoiceclient.h"
 #include "lluictrlfactory.h"
 #include "llviewertexteditor.h"
@@ -250,12 +252,16 @@ LLSD LLFloaterAbout::getInfo()
 	LLViewerRegion* region = gAgent.getRegion();
 	if (region)
 	{
-		const LLVector3d &pos = gAgent.getPositionGlobal();
+		LLVector3d pos = gAgent.getPositionGlobal();
 		info["POSITION"] = ll_sd_from_vector3d(pos);
+		info["POSITION_LOCAL"] = ll_sd_from_vector3(gAgent.getPosAgentFromGlobal(pos));
 		info["REGION"] = gAgent.getRegion()->getName();
 		info["HOSTNAME"] = gAgent.getRegion()->getHost().getHostName();
 		info["HOSTIP"] = gAgent.getRegion()->getHost().getString();
 		info["SERVER_VERSION"] = gLastVersionChannel;
+		LLSLURL slurl;
+		LLAgentUI::buildSLURL(slurl);
+		info["SLURL"] = slurl.getSLURLString();
 	}
 
 	// CPU
diff --git a/indra/newview/llfloaterimnearbychat.cpp b/indra/newview/llfloaterimnearbychat.cpp
index 56b0c15cb9e8ec03157270f9ef3e45ec0d04b085..38592b3f6583c280f1ebb1a6eca70ce142f7c650 100755
--- a/indra/newview/llfloaterimnearbychat.cpp
+++ b/indra/newview/llfloaterimnearbychat.cpp
@@ -125,7 +125,7 @@ BOOL LLFloaterIMNearbyChat::postBuild()
 	setTitle(LLTrans::getString("NearbyChatTitle"));
 
 	// obsolete, but may be needed for backward compatibility?
-	gSavedSettings.declareS32("nearbychat_showicons_and_names", 2, "NearByChat header settings", true);
+	gSavedSettings.declareS32("nearbychat_showicons_and_names", 2, "NearByChat header settings", LLControlVariable::PERSIST_NONDFT);
 
 	if (gSavedPerAccountSettings.getBOOL("LogShowHistory"))
 	{
diff --git a/indra/newview/llviewercontrol.cpp b/indra/newview/llviewercontrol.cpp
index afbb59e72343e2ea05404adc93d9f097d432e790..744ec4de2b02705f5605ff792df317d58dee2a03 100755
--- a/indra/newview/llviewercontrol.cpp
+++ b/indra/newview/llviewercontrol.cpp
@@ -83,7 +83,9 @@
 BOOL 				gHackGodmode = FALSE;
 #endif
 
-
+// Should you contemplate changing the name "Global", please first grep for
+// that string literal. There are at least a couple other places in the C++
+// code that assume the LLControlGroup named "Global" is gSavedSettings.
 LLControlGroup gSavedSettings("Global");	// saved at end of session
 LLControlGroup gSavedPerAccountSettings("PerAccount"); // saved at end of session
 LLControlGroup gCrashSettings("CrashSettings");	// saved at end of session
diff --git a/indra/newview/skins/default/xui/da/floater_about.xml b/indra/newview/skins/default/xui/da/floater_about.xml
index fc8bc33096d17eb5a96f689fb1511afe9ef87da1..9206690c8f27a5b44a4effe44932dd4a11b4f28f 100755
--- a/indra/newview/skins/default/xui/da/floater_about.xml
+++ b/indra/newview/skins/default/xui/da/floater_about.xml
@@ -8,7 +8,7 @@
 		Bygget med [COMPILER] version [COMPILER_VERSION]
 	</floater.string>
 	<floater.string name="AboutPosition">
-		Du er ved [POSITION_0,number,1], [POSITION_1,number,1], [POSITION_2,number,1] i regionen [REGION] lokaliseret ved &lt;nolink&gt;[HOSTNAME]&lt;/nolink&gt; ([HOSTIP])
+		Du er ved [POSITION_LOCAL_0,number,1], [POSITION_LOCAL_1,number,1], [POSITION_LOCAL_2,number,1] i regionen [REGION] lokaliseret ved &lt;nolink&gt;[HOSTNAME]&lt;/nolink&gt; ([HOSTIP])
 [SERVER_VERSION]
 [SERVER_RELEASE_NOTES_URL]
 	</floater.string>
diff --git a/indra/newview/skins/default/xui/de/floater_about.xml b/indra/newview/skins/default/xui/de/floater_about.xml
index 4387a619634bab5fd4f2b23cc7044ac666a632d7..524546718327f201848959feadbe37e16b616dbb 100755
--- a/indra/newview/skins/default/xui/de/floater_about.xml
+++ b/indra/newview/skins/default/xui/de/floater_about.xml
@@ -8,7 +8,7 @@
 		Kompiliert mit [COMPILER] version [COMPILER_VERSION]
 	</floater.string>
 	<floater.string name="AboutPosition">
-		Sie befinden sich in [POSITION_0,number,1], [POSITION_1,number,1], [POSITION_2,number,1] in [REGION] auf &lt;nolink&gt;[HOSTNAME]&lt;/nolink&gt; ([HOSTIP])
+		Sie befinden sich in [POSITION_LOCAL_0,number,1], [POSITION_LOCAL_1,number,1], [POSITION_LOCAL_2,number,1] in [REGION] auf &lt;nolink&gt;[HOSTNAME]&lt;/nolink&gt; ([HOSTIP])
 [SERVER_VERSION]
 [SERVER_RELEASE_NOTES_URL]
 	</floater.string>
diff --git a/indra/newview/skins/default/xui/en/floater_about.xml b/indra/newview/skins/default/xui/en/floater_about.xml
index 63eb87f27a17531b618229d8883eaeb11119c0c1..703015af20081678693a8f0d72ad20312f1dd2e4 100755
--- a/indra/newview/skins/default/xui/en/floater_about.xml
+++ b/indra/newview/skins/default/xui/en/floater_about.xml
@@ -22,7 +22,9 @@ Built with [COMPILER] version [COMPILER_VERSION]
 </floater.string>
   <floater.string
      name="AboutPosition">
-You are at [POSITION_0,number,1], [POSITION_1,number,1], [POSITION_2,number,1] in [REGION] located at &lt;nolink&gt;[HOSTNAME]&lt;/nolink&gt; ([HOSTIP])
+You are at [POSITION_LOCAL_0,number,1], [POSITION_LOCAL_1,number,1], [POSITION_LOCAL_2,number,1] in [REGION] located at &lt;nolink&gt;[HOSTNAME]&lt;/nolink&gt; ([HOSTIP])
+SLURL: &lt;nolink&gt;[SLURL]&lt;/nolink&gt;
+(global coordinates [POSITION_0,number,1], [POSITION_1,number,1], [POSITION_2,number,1])
 [SERVER_VERSION]
 [SERVER_RELEASE_NOTES_URL]
 
diff --git a/indra/newview/skins/default/xui/es/floater_about.xml b/indra/newview/skins/default/xui/es/floater_about.xml
index 3696c7e12cfe6bc4ea349126b2612f28ebf70e41..7ca1e3721f48952bafa9d73296033b08219c2e77 100755
--- a/indra/newview/skins/default/xui/es/floater_about.xml
+++ b/indra/newview/skins/default/xui/es/floater_about.xml
@@ -8,7 +8,7 @@
 		Compilado con [COMPILER], versión [COMPILER_VERSION]
 	</floater.string>
 	<floater.string name="AboutPosition">
-		Estás en la posición [POSITION_0,number,1], [POSITION_1,number,1], [POSITION_2,number,1], de [REGION], alojada en &lt;nolink&gt;[HOSTNAME]&lt;/nolink&gt; ([HOSTIP])
+		Estás en la posición [POSITION_LOCAL_0,number,1], [POSITION_LOCAL_1,number,1], [POSITION_LOCAL_2,number,1], de [REGION], alojada en &lt;nolink&gt;[HOSTNAME]&lt;/nolink&gt; ([HOSTIP])
 [SERVER_VERSION]
 [SERVER_RELEASE_NOTES_URL]
 	</floater.string>
diff --git a/indra/newview/skins/default/xui/fr/floater_about.xml b/indra/newview/skins/default/xui/fr/floater_about.xml
index a659cb4245825c358dec94a8d3bc056fdafaa191..d45bdccf3e8f3e75f75fc2f0eb73ec6abe69017a 100755
--- a/indra/newview/skins/default/xui/fr/floater_about.xml
+++ b/indra/newview/skins/default/xui/fr/floater_about.xml
@@ -8,7 +8,7 @@
 		Compilé avec [COMPILER] version [COMPILER_VERSION]
 	</floater.string>
 	<floater.string name="AboutPosition">
-		Vous êtes à [POSITION_0,number,1], [POSITION_1,number,1], [POSITION_2,number,1] dans [REGION], se trouvant à &lt;nolink&gt;[HOSTNAME]&lt;/nolink&gt; ([HOSTIP])
+		Vous êtes à [POSITION_LOCAL_0,number,1], [POSITION_LOCAL_1,number,1], [POSITION_LOCAL_2,number,1] dans [REGION], se trouvant à &lt;nolink&gt;[HOSTNAME]&lt;/nolink&gt; ([HOSTIP])
 [SERVER_VERSION]
 [SERVER_RELEASE_NOTES_URL]
 	</floater.string>
diff --git a/indra/newview/skins/default/xui/it/floater_about.xml b/indra/newview/skins/default/xui/it/floater_about.xml
index c672511fc5a675edcc2515a8a22f2922677b59db..b0fb585fa252f9a118db2282639e6fa26b5a7afe 100755
--- a/indra/newview/skins/default/xui/it/floater_about.xml
+++ b/indra/newview/skins/default/xui/it/floater_about.xml
@@ -8,7 +8,7 @@
 		Generato con [COMPILER] versione [COMPILER_VERSION]
 	</floater.string>
 	<floater.string name="AboutPosition">
-		Tu sei  [POSITION_0,number,1], [POSITION_1,number,1], [POSITION_2,number,1] in [REGION] che si trova a &lt;nolink&gt;[HOSTNAME]&lt;/nolink&gt; ([HOSTIP])
+		Tu sei  [POSITION_LOCAL_0,number,1], [POSITION_LOCAL_1,number,1], [POSITION_LOCAL_2,number,1] in [REGION] che si trova a &lt;nolink&gt;[HOSTNAME]&lt;/nolink&gt; ([HOSTIP])
 [SERVER_VERSION]
 [SERVER_RELEASE_NOTES_URL]
 	</floater.string>
diff --git a/indra/newview/skins/default/xui/ja/floater_about.xml b/indra/newview/skins/default/xui/ja/floater_about.xml
index 6d5df7564521497710b87166d5e4922f0b123d49..eae52c98ec2375af9c3aecadfb7a9fb1b6a1c37d 100755
--- a/indra/newview/skins/default/xui/ja/floater_about.xml
+++ b/indra/newview/skins/default/xui/ja/floater_about.xml
@@ -8,7 +8,7 @@
 		コンパイラー [COMPILER] [COMPILER_VERSION] バージョン
 	</floater.string>
 	<floater.string name="AboutPosition">
-		あなたの現在地は、[POSITION_0,number,1], [POSITION_1,number,1], [POSITION_2,number,1] の [REGION] です。位置は &lt;nolink&gt;[HOSTNAME]&lt;/nolink&gt; です。（[HOSTIP]）
+		あなたの現在地は、[POSITION_LOCAL_0,number,1], [POSITION_LOCAL_1,number,1], [POSITION_LOCAL_2,number,1] の [REGION] です。位置は &lt;nolink&gt;[HOSTNAME]&lt;/nolink&gt; です。（[HOSTIP]）
 [SERVER_VERSION]
 [SERVER_RELEASE_NOTES_URL]
 	</floater.string>
diff --git a/indra/newview/skins/default/xui/pl/floater_about.xml b/indra/newview/skins/default/xui/pl/floater_about.xml
index 409429ffaa64b2f5584ed937ebbce14fac9dc3fb..61a72ff27de35ec7a4870df323b5e882d4afaf6c 100755
--- a/indra/newview/skins/default/xui/pl/floater_about.xml
+++ b/indra/newview/skins/default/xui/pl/floater_about.xml
@@ -8,7 +8,7 @@
 		Buduj z [COMPILER] wersjÄ… [COMPILER_VERSION]
 	</floater.string>
 	<floater.string name="AboutPosition">
-		Położenie [POSITION_0,number,1], [POSITION_1,number,1], [POSITION_2,number,1] w [REGION] zlokalizowanym w &lt;nolink&gt;[HOSTNAME]&lt;/nolink&gt; ([HOSTIP])
+		Położenie [POSITION_LOCAL_0,number,1], [POSITION_LOCAL_1,number,1], [POSITION_LOCAL_2,number,1] w [REGION] zlokalizowanym w &lt;nolink&gt;[HOSTNAME]&lt;/nolink&gt; ([HOSTIP])
 [SERVER_VERSION]
 [SERVER_RELEASE_NOTES_URL]
 	</floater.string>
diff --git a/indra/newview/skins/default/xui/pt/floater_about.xml b/indra/newview/skins/default/xui/pt/floater_about.xml
index 299f88b22a14211393417e5d8e0520cae587d399..d08926634208f1442c31cf58c7d69f83f8993413 100755
--- a/indra/newview/skins/default/xui/pt/floater_about.xml
+++ b/indra/newview/skins/default/xui/pt/floater_about.xml
@@ -7,7 +7,7 @@
 		Construído com [COMPILER] versão [COMPILER_VERSION]
 	</floater.string>
 	<floater.string name="AboutPosition">
-		Você está em [POSITION_0,number,1], [POSITION_1,number,1], [POSITION_2,number,1] em [REGION] localizado em [HOSTNAME]&lt;/nolink&gt;([HOSTIP])
+		Você está em [POSITION_LOCAL_0,number,1], [POSITION_LOCAL_1,number,1], [POSITION_LOCAL_2,number,1] em [REGION] localizado em [HOSTNAME]&lt;/nolink&gt;([HOSTIP])
 [SERVER_VERSION]
 [SERVER_RELEASE_NOTES_URL]
 	</floater.string>
diff --git a/indra/newview/skins/default/xui/ru/floater_about.xml b/indra/newview/skins/default/xui/ru/floater_about.xml
index bb6266ac9ae4196f593c2cef75cd74262fbd3f83..2b2b3cf453385abf54408b2fb5c3df30fe525ab2 100755
--- a/indra/newview/skins/default/xui/ru/floater_about.xml
+++ b/indra/newview/skins/default/xui/ru/floater_about.xml
@@ -8,7 +8,7 @@
 		Использован компилятор [COMPILER], версия [COMPILER_VERSION]
 	</floater.string>
 	<floater.string name="AboutPosition">
-		Вы в точке [POSITION_0,number,1], [POSITION_1,number,1], [POSITION_2,number,1] в регионе «[REGION]», расположенном на &lt;nolink&gt;[HOSTNAME]&lt;/nolink&gt; ([HOSTIP])
+		Вы в точке [POSITION_LOCAL_0,number,1], [POSITION_LOCAL_1,number,1], [POSITION_LOCAL_2,number,1] в регионе «[REGION]», расположенном на &lt;nolink&gt;[HOSTNAME]&lt;/nolink&gt; ([HOSTIP])
 [SERVER_VERSION]
 [SERVER_RELEASE_NOTES_URL]
 	</floater.string>
diff --git a/indra/newview/skins/default/xui/tr/floater_about.xml b/indra/newview/skins/default/xui/tr/floater_about.xml
index 9cc9c7a2201ae01263d0ecd8a0ac53c07ce30a6e..4dcf6200c6377d7606f117da9062ee0a6449efed 100755
--- a/indra/newview/skins/default/xui/tr/floater_about.xml
+++ b/indra/newview/skins/default/xui/tr/floater_about.xml
@@ -8,7 +8,7 @@
 		[COMPILER] [COMPILER_VERSION] sürümü ile oluşturuldu
 	</floater.string>
 	<floater.string name="AboutPosition">
-		&lt;nolink&gt;[HOSTNAME]&lt;/nolink&gt; ([HOSTIP]) üzerinde bulunan [REGION] içerisinde [POSITION_0,number,1], [POSITION_1,number,1], [POSITION_2,number,1] konumundasınız
+		&lt;nolink&gt;[HOSTNAME]&lt;/nolink&gt; ([HOSTIP]) üzerinde bulunan [REGION] içerisinde [POSITION_LOCAL_0,number,1], [POSITION_LOCAL_1,number,1], [POSITION_LOCAL_2,number,1] konumundasınız
 [SERVER_VERSION]
 [SERVER_RELEASE_NOTES_URL]
 	</floater.string>
diff --git a/indra/newview/skins/default/xui/zh/floater_about.xml b/indra/newview/skins/default/xui/zh/floater_about.xml
index 643881e416e06e5fa9924085ccb4e01f152fc5e6..1193243c7ecbfeb4776c3099ff0a5ee74e1709f7 100755
--- a/indra/newview/skins/default/xui/zh/floater_about.xml
+++ b/indra/newview/skins/default/xui/zh/floater_about.xml
@@ -8,7 +8,7 @@
 		以 [COMPILER_VERSION] 版本 [COMPILER] 建置
 	</floater.string>
 	<floater.string name="AboutPosition">
-		你的方位是 [POSITION_0,number,1], [POSITION_1,number,1], [POSITION_2,number,1]，地區名：[REGION]，主機：&lt;nolink&gt;[HOSTNAME]&lt;/nolink&gt; ([HOSTIP])
+		你的方位是 [POSITION_LOCAL_0,number,1], [POSITION_LOCAL_1,number,1], [POSITION_LOCAL_2,number,1]，地區名：[REGION]，主機：&lt;nolink&gt;[HOSTNAME]&lt;/nolink&gt; ([HOSTIP])
 [SERVER_VERSION]
 [SERVER_RELEASE_NOTES_URL]
 	</floater.string>
diff --git a/indra/newview/tests/llagentaccess_test.cpp b/indra/newview/tests/llagentaccess_test.cpp
index 3ba25f3c10963b160bfd1dc6a824b341d39cc1d2..a40b5c9a3d1836691d7ca0f2adeb1e77ad58158e 100755
--- a/indra/newview/tests/llagentaccess_test.cpp
+++ b/indra/newview/tests/llagentaccess_test.cpp
@@ -49,10 +49,10 @@ LLControlGroup::~LLControlGroup()
 }
 
 // Implementation of just the LLControlGroup methods we requre
-BOOL LLControlGroup::declareU32(const std::string& name, U32 initial_val, const std::string& comment, BOOL persist)
+LLControlVariable* LLControlGroup::declareU32(const std::string& name, U32 initial_val, const std::string& comment, LLControlVariable::ePersist persist)
 {
 	test_preferred_maturity = initial_val;
-	return true;
+	return NULL;
 }
 
 void LLControlGroup::setU32(const std::string& name, U32 val)
@@ -80,7 +80,7 @@ namespace tut
 	void agentaccess_object_t::test<1>()
 	{
 		LLControlGroup cgr("test");
-		cgr.declareU32("PreferredMaturity", SIM_ACCESS_PG, "declared_for_test", FALSE);
+		cgr.declareU32("PreferredMaturity", SIM_ACCESS_PG, "declared_for_test", LLControlVariable::PERSIST_NO);
 		LLAgentAccess aa(cgr);
 		
 		cgr.setU32("PreferredMaturity", SIM_ACCESS_PG);
@@ -109,7 +109,7 @@ namespace tut
 	void agentaccess_object_t::test<2>()
 	{
 		LLControlGroup cgr("test");
-		cgr.declareU32("PreferredMaturity", SIM_ACCESS_PG, "declared_for_test", FALSE);
+		cgr.declareU32("PreferredMaturity", SIM_ACCESS_PG, "declared_for_test", LLControlVariable::PERSIST_NO);
 		LLAgentAccess aa(cgr);
 		
 		// make sure default is PG
@@ -157,7 +157,7 @@ namespace tut
 	void agentaccess_object_t::test<3>()
 	{
 		LLControlGroup cgr("test");
-		cgr.declareU32("PreferredMaturity", SIM_ACCESS_PG, "declared_for_test", FALSE);
+		cgr.declareU32("PreferredMaturity", SIM_ACCESS_PG, "declared_for_test", LLControlVariable::PERSIST_NO);
 		LLAgentAccess aa(cgr);
 		
 #ifndef HACKED_GODLIKE_VIEWER
@@ -195,7 +195,7 @@ namespace tut
 	void agentaccess_object_t::test<4>()
 	{
 		LLControlGroup cgr("test");
-		cgr.declareU32("PreferredMaturity", SIM_ACCESS_PG, "declared_for_test", FALSE);
+		cgr.declareU32("PreferredMaturity", SIM_ACCESS_PG, "declared_for_test", LLControlVariable::PERSIST_NO);
 		LLAgentAccess aa(cgr);
 		
 #ifndef HACKED_GODLIKE_VIEWER
@@ -272,7 +272,7 @@ namespace tut
 	void agentaccess_object_t::test<5>()
 	{
 		LLControlGroup cgr("test");
-		cgr.declareU32("PreferredMaturity", SIM_ACCESS_PG, "declared_for_test", FALSE);
+		cgr.declareU32("PreferredMaturity", SIM_ACCESS_PG, "declared_for_test", LLControlVariable::PERSIST_NO);
 		LLAgentAccess aa(cgr);
 		
 		cgr.setU32("PreferredMaturity", SIM_ACCESS_ADULT);
diff --git a/indra/newview/tests/lllogininstance_test.cpp b/indra/newview/tests/lllogininstance_test.cpp
index f038112fd07ccf4ccea9bf7e6d78bea82450c343..272a46aa8dc66cb6bb2317e37823018ff80a1f12 100755
--- a/indra/newview/tests/lllogininstance_test.cpp
+++ b/indra/newview/tests/lllogininstance_test.cpp
@@ -175,8 +175,8 @@ F32 LLControlGroup::getF32(const std::string& name) { return 0.0f; }
 U32 LLControlGroup::saveToFile(const std::string& filename, BOOL nondefault_only) { return 1; }
 void LLControlGroup::setString(const std::string& name, const std::string& val) {}
 std::string LLControlGroup::getString(const std::string& name) { return "test_string"; }
-BOOL LLControlGroup::declareBOOL(const std::string& name, BOOL initial_val, const std::string& comment, BOOL persist) { return TRUE; }
-BOOL LLControlGroup::declareString(const std::string& name, const std::string &initial_val, const std::string& comment, BOOL persist) { return TRUE; }
+LLControlVariable* LLControlGroup::declareBOOL(const std::string& name, BOOL initial_val, const std::string& comment, LLControlVariable::ePersist persist) { return NULL; }
+LLControlVariable* LLControlGroup::declareString(const std::string& name, const std::string &initial_val, const std::string& comment, LLControlVariable::ePersist persist) { return NULL; }
 
 #include "lluicolortable.h"
 void LLUIColorTable::saveUserSettings(void)const {}
@@ -344,13 +344,13 @@ namespace tut
 			gTOSReplyPump = 0; // clear the callback.
 
 
-			gSavedSettings.declareBOOL("NoInventoryLibrary", FALSE, "", FALSE);
-			gSavedSettings.declareBOOL("ConnectAsGod", FALSE, "", FALSE);
-			gSavedSettings.declareBOOL("UseDebugMenus", FALSE, "", FALSE);
-			gSavedSettings.declareBOOL("ForceMandatoryUpdate", FALSE, "", FALSE);
-			gSavedSettings.declareString("ClientSettingsFile", "test_settings.xml", "", FALSE);
-			gSavedSettings.declareString("NextLoginLocation", "", "", FALSE);
-			gSavedSettings.declareBOOL("LoginLastLocation", FALSE, "", FALSE);
+			gSavedSettings.declareBOOL("NoInventoryLibrary", FALSE, "", LLControlVariable::PERSIST_NO);
+			gSavedSettings.declareBOOL("ConnectAsGod", FALSE, "", LLControlVariable::PERSIST_NO);
+			gSavedSettings.declareBOOL("UseDebugMenus", FALSE, "", LLControlVariable::PERSIST_NO);
+			gSavedSettings.declareBOOL("ForceMandatoryUpdate", FALSE, "", LLControlVariable::PERSIST_NO);
+			gSavedSettings.declareString("ClientSettingsFile", "test_settings.xml", "", LLControlVariable::PERSIST_NO);
+			gSavedSettings.declareString("NextLoginLocation", "", "", LLControlVariable::PERSIST_NO);
+			gSavedSettings.declareBOOL("LoginLastLocation", FALSE, "", LLControlVariable::PERSIST_NO);
 
 			LLSD authenticator = LLSD::emptyMap();
 			LLSD identifier = LLSD::emptyMap();
diff --git a/indra/newview/tests/llsecapi_test.cpp b/indra/newview/tests/llsecapi_test.cpp
index 703603e2dbff8911f91ad9bebff4ada5728149ee..d7e87ed52ea5dc0c1a8d9c9853a358774c1fd180 100755
--- a/indra/newview/tests/llsecapi_test.cpp
+++ b/indra/newview/tests/llsecapi_test.cpp
@@ -39,10 +39,10 @@
 LLControlGroup::LLControlGroup(const std::string& name)
 : LLInstanceTracker<LLControlGroup, std::string>(name) {}
 LLControlGroup::~LLControlGroup() {}
-BOOL LLControlGroup::declareString(const std::string& name,
+LLControlVariable* LLControlGroup::declareString(const std::string& name,
                                    const std::string& initial_val,
                                    const std::string& comment,
-                                   BOOL persist) {return TRUE;}
+                                   LLControlVariable::ePersist persist) {return NULL;}
 void LLControlGroup::setString(const std::string& name, const std::string& val){}
 std::string LLControlGroup::getString(const std::string& name)
 {
diff --git a/indra/newview/tests/llsechandler_basic_test.cpp b/indra/newview/tests/llsechandler_basic_test.cpp
index 02354009760348c40dd7bc1b294d250a9ed0a449..2a8dc153466a7ee12efe56f815d7f027c9774855 100755
--- a/indra/newview/tests/llsechandler_basic_test.cpp
+++ b/indra/newview/tests/llsechandler_basic_test.cpp
@@ -71,10 +71,10 @@ std::string gLastName;
 LLControlGroup::LLControlGroup(const std::string& name)
 : LLInstanceTracker<LLControlGroup, std::string>(name) {}
 LLControlGroup::~LLControlGroup() {}
-BOOL LLControlGroup::declareString(const std::string& name,
+LLControlVariable* LLControlGroup::declareString(const std::string& name,
                                    const std::string& initial_val,
                                    const std::string& comment,
-                                   BOOL persist) {return TRUE;}
+                                   LLControlVariable::ePersist persist) {return NULL;}
 void LLControlGroup::setString(const std::string& name, const std::string& val){}
 std::string LLControlGroup::getString(const std::string& name)
 {
diff --git a/indra/newview/tests/llslurl_test.cpp b/indra/newview/tests/llslurl_test.cpp
index 09343ef227b209efdc0ecc8ce7522dddc7dcd5f4..86229ad636b1b7ced88daed66d231177e6a23257 100755
--- a/indra/newview/tests/llslurl_test.cpp
+++ b/indra/newview/tests/llslurl_test.cpp
@@ -37,10 +37,10 @@
 LLControlGroup::LLControlGroup(const std::string& name)
 : LLInstanceTracker<LLControlGroup, std::string>(name) {}
 LLControlGroup::~LLControlGroup() {}
-BOOL LLControlGroup::declareString(const std::string& name,
+LLControlVariable* LLControlGroup::declareString(const std::string& name,
                                    const std::string& initial_val,
                                    const std::string& comment,
-                                   BOOL persist) {return TRUE;}
+                                   LLControlVariable::ePersist persist) {return NULL;}
 void LLControlGroup::setString(const std::string& name, const std::string& val){}
 
 std::string gCmdLineLoginURI;
diff --git a/indra/newview/tests/llviewerhelputil_test.cpp b/indra/newview/tests/llviewerhelputil_test.cpp
index 710881d81124587d8dcb5512a030732880b87c8b..f6456a28392b5af902743800117c0c60203f4127 100755
--- a/indra/newview/tests/llviewerhelputil_test.cpp
+++ b/indra/newview/tests/llviewerhelputil_test.cpp
@@ -49,10 +49,10 @@ static std::string gOS;
 LLControlGroup::LLControlGroup(const std::string& name)
 	: LLInstanceTracker<LLControlGroup, std::string>(name) {}
 LLControlGroup::~LLControlGroup() {}
-BOOL LLControlGroup::declareString(const std::string& name,
+LLControlVariable* LLControlGroup::declareString(const std::string& name,
 				   const std::string& initial_val,
 				   const std::string& comment,
-				   BOOL persist) {return TRUE;}
+				   LLControlVariable::ePersist persist) {return NULL;}
 void LLControlGroup::setString(const std::string& name, const std::string& val){}
 std::string LLControlGroup::getString(const std::string& name)
 {
diff --git a/indra/newview/tests/llviewernetwork_test.cpp b/indra/newview/tests/llviewernetwork_test.cpp
index a1e97ea17eac6641eb0788d97b0fa1a1aac1e595..06de1cbfa27a5d10bb826939824d8fe8cfba8d64 100755
--- a/indra/newview/tests/llviewernetwork_test.cpp
+++ b/indra/newview/tests/llviewernetwork_test.cpp
@@ -37,10 +37,10 @@
 LLControlGroup::LLControlGroup(const std::string& name)
 : LLInstanceTracker<LLControlGroup, std::string>(name) {}
 LLControlGroup::~LLControlGroup() {}
-BOOL LLControlGroup::declareString(const std::string& name,
+LLControlVariable* LLControlGroup::declareString(const std::string& name,
                                    const std::string& initial_val,
                                    const std::string& comment,
-                                   BOOL persist) {return TRUE;}
+                                   LLControlVariable::ePersist persist) {return NULL;}
 void LLControlGroup::setString(const std::string& name, const std::string& val){}
 
 std::string gCmdLineLoginURI;
diff --git a/indra/newview/tests/llxmlrpclistener_test.cpp b/indra/newview/tests/llxmlrpclistener_test.cpp
index 711c2a3d51a908ba9a18316556c49f643d1c1960..20f913b67083be6aeef3635428f8dbb9b2a35d90 100755
--- a/indra/newview/tests/llxmlrpclistener_test.cpp
+++ b/indra/newview/tests/llxmlrpclistener_test.cpp
@@ -62,8 +62,8 @@ namespace tut
             // These variables are required by machinery used by
             // LLXMLRPCTransaction. The values reflect reality for this test
             // executable; hopefully these values are correct.
-            gSavedSettings.declareBOOL("BrowserProxyEnabled", FALSE, "", FALSE); // don't persist
-            gSavedSettings.declareBOOL("NoVerifySSLCert", TRUE, "", FALSE); // don't persist
+            gSavedSettings.declareBOOL("BrowserProxyEnabled", FALSE, "", LLControlVariable::PERSIST_NO); // don't persist
+            gSavedSettings.declareBOOL("NoVerifySSLCert", TRUE, "", LLControlVariable::PERSIST_NO); // don't persist
         }
 
         // LLEventPump listener signature
diff --git a/indra/newview/viewer_manifest.py b/indra/newview/viewer_manifest.py
index 5e08e54b7c6de60882f99a135e607a8957065278..19863dd84548f7eb077899f97dfb55a2fdcaeb7a 100755
--- a/indra/newview/viewer_manifest.py
+++ b/indra/newview/viewer_manifest.py
@@ -34,9 +34,15 @@
 import time
 import random
 viewer_dir = os.path.dirname(__file__)
-# add llmanifest library to our path so we don't have to muck with PYTHONPATH
-sys.path.append(os.path.join(viewer_dir, '../lib/python/indra/util'))
-from llmanifest import LLManifest, main, proper_windows_path, path_ancestors
+# Add indra/lib/python to our path so we don't have to muck with PYTHONPATH.
+# Put it FIRST because some of our build hosts have an ancient install of
+# indra.util.llmanifest under their system Python!
+sys.path.insert(0, os.path.join(viewer_dir, os.pardir, "lib", "python"))
+from indra.util.llmanifest import LLManifest, main, proper_windows_path, path_ancestors
+try:
+    from llbase import llsd
+except ImportError:
+    from indra.base import llsd
 
 class ViewerManifest(LLManifest):
     def is_packaging_viewer(self):
@@ -65,13 +71,13 @@ def construct(self):
                 # include the entire shaders directory recursively
                 self.path("shaders")
                 # include the extracted list of contributors
-                contributor_names = self.extract_names("../../doc/contributions.txt")
-                self.put_in_file(contributor_names, "contributors.txt")
-                self.file_list.append(["../../doc/contributions.txt",self.dst_path_of("contributors.txt")])
+                contributions_path = "../../doc/contributions.txt"
+                contributor_names = self.extract_names(contributions_path)
+                self.put_in_file(contributor_names, "contributors.txt", src=contributions_path)
                 # include the extracted list of translators
-                translator_names = self.extract_names("../../doc/translations.txt")
-                self.put_in_file(translator_names, "translators.txt")
-                self.file_list.append(["../../doc/translations.txt",self.dst_path_of("translators.txt")])
+                translations_path = "../../doc/translations.txt"
+                translator_names = self.extract_names(translations_path)
+                self.put_in_file(translator_names, "translators.txt", src=translations_path)
                 # include the list of Lindens (if any)
                 #   see https://wiki.lindenlab.com/wiki/Generated_Linden_Credits
                 linden_names_path = os.getenv("LINDEN_CREDITS")
@@ -85,10 +91,9 @@ def construct(self):
                     else:
                          # all names should be one line, but the join below also converts to a string
                         linden_names = ', '.join(linden_file.readlines())
-                        self.put_in_file(linden_names, "lindens.txt")
+                        self.put_in_file(linden_names, "lindens.txt", src=linden_names_path)
                         linden_file.close()
                         print "Linden names extracted from '%s'" % linden_names_path
-                        self.file_list.append([linden_names_path,self.dst_path_of("lindens.txt")])
 
                 # ... and the entire windlight directory
                 self.path("windlight")
@@ -99,6 +104,27 @@ def construct(self):
                     self.path("dictionaries")
                     self.end_prefix(pkgdir)
 
+                # CHOP-955: If we have "sourceid" in the build process
+                # environment, generate it into settings_install.xml.
+                try:
+                    sourceid = os.environ["sourceid"]
+                except KeyError:
+                    # no sourceid, no settings_install.xml file
+                    pass
+                else:
+                    if sourceid:
+                        # Single-entry subset of the LLSD content of settings.xml
+                        content = dict(sourceid=dict(Comment='Identify referring agency to Linden web servers',
+                                                     Persist=1,
+                                                     Type='String',
+                                                     Value=sourceid))
+                        # put_in_file(src=) need not be an actual pathname; it
+                        # only needs to be non-empty
+                        settings_install = self.put_in_file(llsd.format_pretty_xml(content),
+                                                            "settings_install.xml",
+                                                            src="environment")
+                        print "Put sourceid '%s' in %s" % (sourceid, settings_install)
+
                 self.end_prefix("app_settings")
 
             if self.prefix(src="character"):
@@ -196,24 +222,26 @@ def flags_list(self):
         """ Convenience function that returns the command-line flags
         for the grid"""
 
-        # Set command line flags relating to the target grid
-        grid_flags = ''
-        if not self.default_grid():
-            grid_flags = "--grid %(grid)s "\
-                         "--helperuri http://preview-%(grid)s.secondlife.com/helpers/" %\
-                           {'grid':self.grid()}
-
-        # Deal with settings 
-        setting_flags = ''
-        if not self.default_channel() or not self.default_grid():
-            if self.default_grid():
-                setting_flags = '--settings settings_%s.xml'\
-                                % self.channel_lowerword()
-            else:
-                setting_flags = '--settings settings_%s_%s.xml'\
-                                % (self.grid(), self.channel_lowerword())
-                                                
-        return " ".join((grid_flags, setting_flags)).strip()
+        # The original role of this method seems to have been to build a
+        # grid-specific viewer: one that would, on launch, preselect a
+        # particular grid. (Apparently that dates back to when the protocol
+        # between viewer and simulator required them to be updated in
+        # lockstep, so that "the beta grid" required "a beta viewer.") But
+        # those viewer command-line switches no longer work without tweaking
+        # user_settings/grids.xml. In fact, going forward, it's unclear what
+        # use case that would address.
+
+        # This method also set a channel-specific (or grid-and-channel-
+        # specific) user_settings/settings_something.xml file. It has become
+        # clear that saving user settings in a channel-specific file causes
+        # more problems (confusion) than it solves, so we've discontinued that.
+
+        # In fact we now avoid forcing viewer command-line switches at all,
+        # instead introducing a settings_install.xml file. Command-line
+        # switches don't aggregate well; for instance the generated --channel
+        # switch actually prevented the user specifying --channel on the
+        # command line. Settings files have well-defined override semantics.
+        return None
 
     def extract_names(self,src):
         try:
@@ -530,8 +558,7 @@ def package_finish(self):
             'final_exe' : self.final_exe(),
             'grid':self.args['grid'],
             'grid_caps':self.args['grid'].upper(),
-            # escape quotes becase NSIS doesn't handle them well
-            'flags':self.flags_list().replace('"', '$\\"'),
+            'flags':'',
             'channel':self.channel(),
             'channel_oneword':self.channel_oneword(),
             'channel_unique':self.channel_unique(),
@@ -759,9 +786,6 @@ def path_optional(src, dst):
 
                     self.end_prefix("llplugin")
 
-                # command line arguments for connecting to the proper grid
-                self.put_in_file(self.flags_list(), 'arguments.txt')
-
                 self.end_prefix("Resources")
 
             self.end_prefix("Contents")
@@ -807,10 +831,6 @@ def package_finish(self):
                                  'bundle': self.get_dst_prefix()
                 })
 
-        channel_standin = 'Second Life Viewer'  # hah, our default channel is not usable on its own
-        if not self.default_channel():
-            channel_standin = self.channel()
-
         imagename="SecondLife_" + '_'.join(self.args['version'])
 
         # MBW -- If the mounted volume name changes, it breaks the .DS_Store's background image and icon positioning.
@@ -928,9 +948,6 @@ def construct(self):
             self.path("install.sh")
             self.end_prefix("linux_tools")
 
-        # Create an appropriate gridargs.dat for this package, denoting required grid.
-        self.put_in_file(self.flags_list(), 'etc/gridargs.dat')
-
         if self.prefix(src="", dst="bin"):
             self.path("secondlife-bin","do-not-directly-run-secondlife-bin")
             self.path("../linux_crash_logger/linux-crash-logger","linux-crash-logger.bin")