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-rw-r--r--usr.bin/dtc/input_buffer.cc4
1 files changed, 4 insertions, 0 deletions
diff --git a/usr.bin/dtc/input_buffer.cc b/usr.bin/dtc/input_buffer.cc
index 2a483f3..10b3a00 100644
--- a/usr.bin/dtc/input_buffer.cc
+++ b/usr.bin/dtc/input_buffer.cc
@@ -43,6 +43,10 @@
#include <sys/mman.h>
#include <assert.h>
+#ifndef MAP_PREFAULT_READ
+#define MAP_PREFAULT_READ 0
+#endif
+
namespace dtc
{
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