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

[Job Henandez Lara via llvm-commits]

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@@ -119,6 +119,15 @@ libc_support_library(
 )
 
 libc_support_library(
+    name = "hdr_fenv_t",
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Jobhdez wrote:

what do you mean by "should be moved down in this file to match"?  thanks by the way

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