LDB and LDBIcon are now optional, however still packaged by default

Omen.lua

@@ -21,8 +21,8 @@ LoadAddOn("LibDBIcon-1.0")
 local Omen = LibStub("AceAddon-3.0"):NewAddon("Omen", "AceConsole-3.0", "AceEvent-3.0", "AceTimer-3.0", "LibSink-2.0")
 local L = LibStub("AceLocale-3.0"):GetLocale("Omen", false)
 local LSM = LibStub("LibSharedMedia-3.0")
-local LDB = LibStub("LibDataBroker-1.1")
-local LDBIcon = LibStub("LibDBIcon-1.0")
+local LDB = LibStub("LibDataBroker-1.1", true)
+local LDBIcon = LDB and LibStub("LibDBIcon-1.0", true)
 _G["Omen"] = Omen
 
 
@@ -467,18 +467,22 @@ function Omen:PLAYER_LOGIN()
 	self:UpdateGrips()
 	self:UnregisterEvent("PLAYER_LOGIN")
 
-	OmenLauncher = LDB:NewDataObject("Omen", {
-		type = "launcher",
-		icon = "Interface\\AddOns\\Omen\\icon",
-		OnClick = function(clickedframe, button)
-			if button == "RightButton" then Omen:ShowConfig() else Omen:Toggle() end
-		end,
-	})
-	LDBIcon:Register("Omen", OmenLauncher, db.MinimapIcon)
-	OmenLauncher.OnTooltipShow = function(tt)
-		tt:AddLine(self.defaultTitle)
-		tt:AddLine("|cffffff00" .. L["Click|r to toggle the Omen window"])
-		tt:AddLine("|cffffff00" .. L["Right-click|r to open the options menu"])
+	if LDB then
+		OmenLauncher = LDB:NewDataObject("Omen", {
+			type = "launcher",
+			icon = "Interface\\AddOns\\Omen\\icon",
+			OnClick = function(clickedframe, button)
+				if button == "RightButton" then Omen:ShowConfig() else Omen:Toggle() end
+			end,
+			OnTooltipShow = function(tt)
+				tt:AddLine(self.defaultTitle)
+				tt:AddLine("|cffffff00" .. L["Click|r to toggle the Omen window"])
+				tt:AddLine("|cffffff00" .. L["Right-click|r to open the options menu"])
+			end,
+		})
+		if LDBIcon then
+			LDBIcon:Register("Omen", OmenLauncher, db.MinimapIcon)
+		end
 	end
 
 	-- Optional launcher support for LFBP-3.0 if present, this code is placed here so