diff --git a/crnlib/crnlib.cbp b/crnlib/crnlib.cbp
index b18ac9e..dfc2cfe 100644
--- a/crnlib/crnlib.cbp
+++ b/crnlib/crnlib.cbp
@@ -27,6 +27,7 @@
 				<Option compiler="gcc" />
 				<Option createDefFile="1" />
 				<Compiler>
+					<Add option="-march=core2" />
 					<Add option="-fomit-frame-pointer" />
 					<Add option="-fexpensive-optimizations" />
 					<Add option="-O3" />
@@ -43,6 +44,7 @@
 			<Add option="-Wall" />
 			<Add option="-Wno-unused-value" />
 			<Add option="-Wno-unused" />
+			<Add option="-fno-strict-aliasing" />
 		</Compiler>
 		<Unit filename="crn_arealist.cpp" />
 		<Unit filename="crn_arealist.h" />
diff --git a/crunch/crunch.cbp b/crunch/crunch.cbp
index 631b65c..8e832f2 100644
--- a/crunch/crunch.cbp
+++ b/crunch/crunch.cbp
@@ -24,6 +24,7 @@
 				<Option type="1" />
 				<Option compiler="gcc" />
 				<Compiler>
+					<Add option="-march=core2" />
 					<Add option="-fomit-frame-pointer" />
 					<Add option="-fexpensive-optimizations" />
 					<Add option="-O3" />
@@ -40,6 +41,7 @@
 			<Add option="-fexceptions" />
 			<Add option="-Wno-unused-value" />
 			<Add option="-Wno-unused" />
+			<Add option="-fno-strict-aliasing" />
 			<Add directory="..\inc" />
 			<Add directory="..\crnlib" />
 		</Compiler>