+endif
+
+if WINDOWS
+# require Windows Vista or above (for winsock2)
+AM_CFLAGS+=-DWINVER=0x0600 -D_WIN32_WINNT=0x0600
+endif
+
+libcatta_la_CFLAGS = $(AM_CFLAGS) $(PTHREAD_CFLAGS)
+libcatta_la_LIBADD = $(AM_LDADD) $(PTHREAD_CFLAGS) $(PTHREAD_LIBS)
+libcatta_la_LDFLAGS = $(AM_LDFLAGS) -version-info $(LIBCATTA_VERSION_INFO)