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-rw-r--r--erts/emulator/sys/common/erl_mseg.h6
1 files changed, 5 insertions, 1 deletions
diff --git a/erts/emulator/sys/common/erl_mseg.h b/erts/emulator/sys/common/erl_mseg.h
index 91e335b225..f260c6506f 100644
--- a/erts/emulator/sys/common/erl_mseg.h
+++ b/erts/emulator/sys/common/erl_mseg.h
@@ -33,10 +33,14 @@
#if HAVE_MMAP
# define HAVE_ERTS_MSEG 1
# define HAVE_SUPER_ALIGNED_MB_CARRIERS 1
-# define MSEG_ALIGN_BITS (17) /*SVERK Configure me! */
#else
# define HAVE_ERTS_MSEG 0
# define HAVE_SUPER_ALIGNED_MB_CARRIERS 0
+#endif
+
+#if HAVE_SUPER_ALIGNED_MB_CARRIERS
+# define MSEG_ALIGN_BITS (17) /*SVERK Configure me! */
+#else
# define MSEG_ALIGN_BITS (12) /*SVERK Configure me! */
#endif