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-rw-r--r--libguile/bdw-gc.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/libguile/bdw-gc.h b/libguile/bdw-gc.h
index 2deb97e94..6e2f4561b 100644
--- a/libguile/bdw-gc.h
+++ b/libguile/bdw-gc.h
@@ -23,7 +23,7 @@
#include "libguile/scmconfig.h"
-#ifdef SCM_USE_PTHREAD_THREADS
+#if SCM_USE_PTHREAD_THREADS
/* When pthreads are used, let `libgc' know about it and redirect allocation
calls such as `GC_MALLOC ()' to (contention-free, faster) thread-local