/* Multi-thread support */
#undef SILC_THREADS
+#ifndef SILC_WIN32
+#undef SILC_HAVE_PTHREAD
+#undef HAVE_IPV6
+#endif
+
/* Default paths */
#undef SILC_ETCDIR
#undef SILC_HELPDIR
#undef Rfclose
#undef Rgethostbyname
-/* POSIX thread checking */
-#undef SILC_HAVE_PTHREAD
-
/* Native WIN32 compilation (-mno-cygwin GCC option) under cygwin, though
the code compiles with any native WIN32 compiler. */
#undef SILC_WIN32