This syntax error was present in the _original_ commit: the code in
the #ifdefs had _never_ been compiled.

...
...

This code was commited in 2004.

...
...
(stop screaming and catch your breath)
...


The LibreSSL response?  The #ifdefs and code in them have been deleted.

The OpenSSL response?  The code... that in 11 years had never been used... 
for a deprecated cipher... was *fixed* on Saturday, retaining the #ifdefs

<drops mic; walks off stage>

Source: ‘a tale of software maintenance: OpenSSL and EVP_CHECK_DES_KEY’ – MARC