--- a/configure.ac
+++ b/configure.ac
@@ -182,8 +182,6 @@
 # Checks for the build machinery.
 AC_DEFINE([LIBDPKG_VOLATILE_API], [1], [Acknowledge the volatility of the API.])
 DPKG_COMPILER_WARNINGS
-DPKG_COMPILER_OPTIMIZATIONS
-DPKG_LINKER_OPTIMIZATIONS
 DPKG_ARCHITECTURE
 AC_DEFINE([PACKAGE_RELEASE], [PACKAGE_VERSION " (" ARCHITECTURE ")"],
   [Define the project release information, version and architecture])