GNU bug report logs - #38237
I/O errors do not currently have their own exception type

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Subject: I/O errors do not currently have their own exception type
Date: Sat, 16 Nov 2019 22:09:52 +0100
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For R7RS, this should be true:

  (file-error? (guard (exn (else exn)) (open-input-file " no such file ")))

However currently an error during Guile's open-input-file doesn't raise
a specific-enough exception for file-error? to be implementable.
Something to fix.