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-rw-r--r--libguile/stackchk.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/libguile/stackchk.h b/libguile/stackchk.h
index eb03b106f..d513414df 100644
--- a/libguile/stackchk.h
+++ b/libguile/stackchk.h
@@ -66,7 +66,7 @@
#endif
#ifdef STACK_CHECKING
-# ifdef SCM_STACK_GROWS_UP
+# if SCM_STACK_GROWS_UP
# define SCM_STACK_OVERFLOW_P(s)\
(s > ((SCM_STACKITEM *) SCM_BASE (scm_rootcont) + SCM_STACK_LIMIT))
# else