[compiler-rt] [compiler-rt][x86] Don't use assert.h when building without a libc (PR #165384)

[via llvm-commits]

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@@ -21,7 +21,9 @@
 
 #if defined(__GNUC__) || defined(__clang__) || defined(_MSC_VER)
 
+#if defined(__linux__) && __STDC_HOSTED__
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quic-k wrote:

done

https://github.com/llvm/llvm-project/pull/165384