I have finished reading the release notes. This section seems to be relevant:
OTP-16882 Application(s): crypto
Add /usr/local/opt/openssl to the openssl configure
search path. This path is where some tools on OS X
place openssl.
OTP-17254 Application(s): crypto, erts
Related Id(s): ERIERL-618, GH-4230
The configure scripts in crypto and erts now fail if a
requested feature cannot be enabled.
Large parts of the configure script of crypto have been
rewritten with various improvements and bug fixes. It
is now better at finding usable OpenSSL libraries, but
will in the following cases fail to detect OpenSSL
libraries where it previously sometimes detected the
libraries by chance:
-- OpenSSL installations with include directory and lib
directory parts installed in different base
directories. In order to detect such installations
after this change, the user must explicitly specify the
locations using the --with-ssl=<path> and the
--with-ssl-incl=<path> configure command line
arguments.
-- When building with old gcc compilers or other
compilers on Debian derivatives with multiarch
directories under the lib directory. In order to detect
such installations after this change, the user must
explicitly specify the multiarch directory name using
the --with-ssl-lib-subdir=lib/<multiarch-dir> configure
command line argument.
