-/* KLUDGE: A hack inherited from CMU CL used to be conditional on
- * !defined(__linux__), and has now been made conditional on
- * CANNOT_GET_TO_SINGLE_STEP_FLAG: if the OS won't let us flip the
- * single-step flag bit in the state stored in a signal context, then
- * we need to mess around with overwriting preceding code with
- * bit-flipping code. This isn't needed in Linux or OpenBSD; I haven't
- * been able to test whether it's still needed in FreeBSD, so for
- * conservatism it's left in. -- WHN 2000-10-24 */
+/* As the sbcl-devel message from Raymond Wiker 2000-12-01, FreeBSD
+ * (unlike Linux and OpenBSD) doesn't let us tweak the CPU's single
+ * step flag bit by messing with the flags stored in a signal context,
+ * so we need to implement single stepping in a more roundabout way. */