0.8.3.23

[sbcl.git] / base-target-features.lisp-expr

diff --git a/base-target-features.lisp-expr b/base-target-features.lisp-expr
index c6e3c90..6d10856 100644 (file)
--- a/base-target-features.lisp-expr
+++ b/base-target-features.lisp-expr
@@ -157,7 +157,7 @@
  ;; As of SBCL 0.8,  this is only supposed to work in x86 Linux, on which
  ;; system it's implemented using clone(2) and the %fs segment register.
  ;; Note that no consistent effort to audit the SBCL library code for
- ;; thread safety has been performed, so caveat executor
+ ;; thread safety has been performed, so caveat executor.
  ; :sb-thread
  
  ;; This affects the definition of a lot of things in bignum.lisp. It
@@ -165,10 +165,6 @@
  ;; to. It doesn't seem to be needed for X86 systems anyway.
  ; :32x16-divide
 
- ;; This is probably true for some processor types, but not X86. It
- ;; affects a lot of floating point code.
- ; :negative-zero-is-not-zero
-
  ;; This is set in classic CMU CL, and presumably there it means
  ;; that the floating point arithmetic implementation
  ;; conforms to IEEE's standard. Here it definitely means that the
@@ -199,6 +195,10 @@
  ;; in the *FEATURES* list
  ;;
 
+ ;; Any target feature which affects binary compatibility of fasl files
+ ;; needs to be recorded in *FEATURES-POTENTIALLY-AFFECTING-FASL-FORMAT*
+ ;; (elsewhere).
+
  ;; notes on the :NIL and :IGNORE features:
  ;;
  ;; #+NIL is used to comment out forms. Occasionally #+IGNORE is used