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-rw-r--r--boehm-gc/include/private/gcconfig.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/boehm-gc/include/private/gcconfig.h b/boehm-gc/include/private/gcconfig.h
index 5013dbd596b..05b3832c176 100644
--- a/boehm-gc/include/private/gcconfig.h
+++ b/boehm-gc/include/private/gcconfig.h
@@ -752,6 +752,7 @@
# if (defined (powerpc64) || defined(__powerpc64__))
# define ALIGNMENT 8
# define CPP_WORDSZ 64
+# define HBLKSIZE 4096
# else
# define ALIGNMENT 4
# endif