Index: EndlessSky.cbp
--- EndlessSky.cbp.orig
+++ EndlessSky.cbp
@@ -29,7 +29,6 @@
 				<Option projectLinkerOptionsRelation="2" />
 				<Compiler>
 					<Add option="-flto" />
-					<Add option="-O3" />
 					<Add option="-msse3" />
 				</Compiler>
 				<Linker>
@@ -75,7 +74,6 @@
 		<Compiler>
 			<Add option="-Wall" />
 			<Add option="-std=c++17" />
-			<Add option="-Werror" />
 			<Add option="-Wold-style-cast" />
 			<Add option="-fno-rtti" />
 			<Add directory="C:/dev64/include" />
