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diff --git a/wsutil/CMakeLists.txt b/wsutil/CMakeLists.txt
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index 0367cd1..6382a2c 100644
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--- a/wsutil/CMakeLists.txt
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+++ b/wsutil/CMakeLists.txt
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@@ -69,6 +69,7 @@ set(WSUTIL_PUBLIC_HEADERS
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 	ws_mempbrk_int.h
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 	ws_pipe.h
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 	ws_printf.h
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+	wstmpdir.h
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 	wsjson.h
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 	xtea.h
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 )
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@@ -118,6 +118,7 @@ set(WSUTIL_COMMON_FILES
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 	unicode-utils.c
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 	ws_mempbrk.c
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 	ws_pipe.c
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+	wstmpdir.c
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 	wsgcrypt.c
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 	wsjson.c
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 	xtea.c