modify sin led gpio

hc

2024-05-13 9d77db3c730780c8ef5ccd4b66403ff5675cfe4e

 kernel/tools/build/feature/test-reallocarray.c
..
..
@@ -6,3 +6,5 @@
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 {
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 	return !!reallocarray(NULL, 1, 1);
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 }
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+
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+#undef _GNU_SOURCE