Prevent external linker lib dir flags from bleeding through to configuration lists

src/base/table.lua

@@ -19,6 +19,19 @@
 	end
 	
 
+--
+-- Make a copy of the indexed elements of the table.
+--
+
+	function table.arraycopy(object)
+		local result = {}
+		for i, value in ipairs(object) do
+			result[i] = value
+		end
+		return result
+	end
+
+
 --
 -- Make a complete copy of a table, including any child tables it contains.
 --

src/project/config.lua

@@ -219,7 +219,7 @@
 	
  	function config.getlinks(cfg, kind, part)
 		-- if I'm building a list of link directories, include libdirs
-		local result = iif (part == "directory" and kind == "all", cfg.libdirs, {})
+		local result = iif (part == "directory" and kind == "all", table.arraycopy(cfg.libdirs), {})
 
 		local function canlink(source, target)
 			-- can't link executables