+UnSet("CONFIG_UCW_ENV_VAR_CONFIG");
+
+# Allow use of direct IO on files
+Set("CONFIG_UCW_DIRECT_IO");
+Set("CONFIG_UCW_FB_DIRECT");
+
+# Use thread-local storage (needs GCC-support, default: auto-detect)
+# Set("CONFIG_UCW_TLS");
+
+# Use epoll (needs support in libc and kernel, default: auto-detect)
+# Set("CONFIG_UCW_EPOLL");
+
+# Use monotonic clock (default: yes on Linux, no elsewhere)
+# Set("CONFIG_UCW_MONOTONIC_CLOCK");
+
+# Which regular expression library should be used? If none is selected, we use BSD regex from libc.
+UnSet("CONFIG_UCW_POSIX_REGEX");
+UnSet("CONFIG_UCW_PCRE");