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-rw-r--r--erts/include/erl_int_sizes_config.h.in3
1 files changed, 3 insertions, 0 deletions
diff --git a/erts/include/erl_int_sizes_config.h.in b/erts/include/erl_int_sizes_config.h.in
index ef49995732..a8a264686e 100644
--- a/erts/include/erl_int_sizes_config.h.in
+++ b/erts/include/erl_int_sizes_config.h.in
@@ -31,3 +31,6 @@
/* The number of bytes in a long long. */
#undef SIZEOF_LONG_LONG
+
+/* Define if building a halfword-heap 64bit emulator (needed for NIF's) */
+#undef HALFWORD_HEAP_EMULATOR