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-rw-r--r--include/rttypes.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/include/rttypes.h b/include/rttypes.h
index 2434eb43b1..4f6c9bf6bf 100644
--- a/include/rttypes.h
+++ b/include/rttypes.h
@@ -32,6 +32,12 @@ extern "C" {
* RT-Thread basic data types definition
*/
+#if defined(_WIN64) || defined(__x86_64__)
+#ifndef ARCH_CPU_64BIT
+#define ARCH_CPU_64BIT
+#endif // ARCH_CPU_64BIT
+#endif // defined(_WIN64) || defined(__x86_64__)
+
typedef int rt_bool_t; /**< boolean type */
#ifndef RT_USING_ARCH_DATA_TYPE