diff --git a/AMBuildScript b/AMBuildScript
index c76c052..ce17e85 100644
--- a/AMBuildScript
+++ b/AMBuildScript
@@ -148,6 +148,8 @@ class SM:
 			#Platform-specifics
 			if AMBuild.target['platform'] == 'linux':
 				self.compiler.AddToListVar('CDEFINES', '_LINUX')
+				self.compiler.AddToListVar('CDEFINES', 'POSIX')
+				self.compiler.AddToListVar('CDEFINES', 'NO_MALLOC_OVERRIDE')
 				if self.vendor == 'gcc':
 					self.compiler.AddToListVar('POSTLINKFLAGS', '-static-libgcc')
 				if self.vendor == 'clang':