[compiler-rt] Check if the compiler supports __has_feature first
#164689
+7
−1
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This line of code was introduced by e6a1aff.
This file fails to compile in some supported setups now, because
__has_featureitself being a macro is not implemented in GCC until 14: https://godbolt.org/z/eM9Gff157This fix should be simple, since ptrauth is only supported by apple clang, which should pass the
defined(__has_feature)condition, all other compilers that don't pass this condition can just assume the feature not being supported.