* Get rid of the annoying variable-gets-clobbered-by-longjmp warning.

HACKING

@@ -130,13 +130,8 @@ make-stds.texi.
 
 - The Guile tree should compile without warnings under the following
 GCC switches, which are the default in the current configure script:
-    -O2 -Wall -Wpointer-arith -Wmissing-prototypes The only warnings
-which can be tolerated are those about variables being clobbered by
-longjmp/vfork in eval.c.  The variables in question are critical to
-the interpreter's performance; as far as I can tell, it is
-difficult/annoying to avoid these warnings without slowing the system
-down substantially.  (If you can figure out a good fix, I'd be happy
-to see it.)
+
+    -O2 -Wall -Wpointer-arith -Wmissing-prototypes
 
 Note that the warnings generated vary from one version of GCC to the
 next, and from one architecture to the next (apparently).  To provide

libguile/ChangeLog

@@ -1,3 +1,10 @@
+2000-12-28  Dirk Herrmann  <D.Herrmann@tu-bs.de>
+
+	* continuations.c (scm_make_continuation):  Make variable cont
+	volatile to let the compiler know that it won't be clobbered by
+	longjmp.  (It wouldn't be anyway, but for some reason the compiler
+	is not able to see that.)
+
 2000-12-28  Dirk Herrmann  <D.Herrmann@tu-bs.de>
 
 	This patch re-introduces the unused member "documentation" of

libguile/continuations.c

@@ -111,7 +111,7 @@ continuation_print (SCM obj, SCM port, scm_print_state *state)
 SCM 
 scm_make_continuation (int *first)
 {
-  SCM cont;
+  volatile SCM cont;
   scm_contregs *continuation;
   scm_contregs *rootcont = SCM_CONTREGS (scm_rootcont);
   long stack_size;