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-rw-r--r--BaseTools/Source/C/Common/Decompress.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/BaseTools/Source/C/Common/Decompress.c b/BaseTools/Source/C/Common/Decompress.c
index 0f2bdbffa7..0cf0c4a0a8 100644
--- a/BaseTools/Source/C/Common/Decompress.c
+++ b/BaseTools/Source/C/Common/Decompress.c
@@ -15,7 +15,9 @@ SPDX-License-Identifier: BSD-2-Clause-Patent
//
// Decompression algorithm begins here
//
+#ifndef UINT8_MAX
#define UINT8_MAX 0xff
+#endif
#define BITBUFSIZ 32
#define MAXMATCH 256
#define THRESHOLD 3