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[rtdef] add comment for RT_USING_LIBC_ISO_ONLY (#8229)

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Meco Man 2023-11-05 20:53:02 -05:00 committed by GitHub
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commit bb8667e13b
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include/rtdef.h
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@ -62,6 +62,7 @@
#ifdef RT_USING_LIBC
#if !defined(RT_USING_LIBC_ISO_ONLY) && !defined(RT_VER_NUM)
/* If RT_VER_NUM is not defined, there is no extra libc support. */
#define RT_USING_LIBC_ISO_ONLY (1)
#else
#define RT_USING_LIBC_ISO_ONLY (0)