BUGFIXES:
* socket: avoid crash when writing to a socket without SSL/TLS fails.
Reported by Andrea Venturoli via mailing list, fixes#71.
* wolfSSL support: avoid fetchmail.c compilation failure in certain
configurations of wolfSSL (for instance, on FreeBSD's wolfssl-5.8.0_1
package), OpenSSL_version enables a newer 1.1.x compat API that passes its
argument to a wolfSSL API, with OPENSSL_DIR and OPENSSL_ENGINES_DIR, causing
related compiler failures.
PR: 287616
PR: 287435 (patch integrated upstream)
Approved by: Corey Halpin (maintainer)
MFH: 2025Q2
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