[libc] [llvm] [libc] Add proxy headers for fenv types. (PR #88467)

[via llvm-commits]

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@@ -7,9 +7,9 @@
 //===----------------------------------------------------------------------===//
 
 #include "src/fenv/feholdexcept.h"
+#include "hdr/fenv_t.h"
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lntue wrote:

Add `libc.hdr.fenv_t` to its direct dependency.

https://github.com/llvm/llvm-project/pull/88467