--- a/configure.ac
+++ b/configure.ac
@@ -104,8 +104,6 @@
 # Checks for the build machinery.
 AC_DEFINE(LIBDPKG_VOLATILE_API, 1, [Acknowledge the volatility of the API.])
 DPKG_COMPILER_WARNINGS
-DPKG_COMPILER_OPTIMISATIONS
-DPKG_LINKER_OPTIMISATIONS
 DPKG_ARCHITECTURE
 
 AC_CONFIG_FILES([ Makefile