[libc] [llvm] [libc] Add proxy header for fenv.h macro constants. #87863 (PR #87896)

[via llvm-commits]

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@@ -14,8 +14,8 @@
 #include "src/__support/FPUtil/fpbits_str.h"
 #include "test/UnitTest/FPMatcher.h"
 
+#include "hdr/fenv_macros.h"
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lntue wrote:

Look like this is not used directly in this file.  You can remove it.

https://github.com/llvm/llvm-project/pull/87896