--with-mysql using 8.x depends on openssl and breaks Mac OS build

mysql_config

Usage: /usr/local/bin/mysql_config [OPTIONS]
Compiler: Clang 10.0.0.10001145
Options:
        --cflags         [-I/usr/local/Cellar/mysql/8.0.15/include/mysql ]
        --cxxflags       [-I/usr/local/Cellar/mysql/8.0.15/include/mysql ]
        --include        [-I/usr/local/Cellar/mysql/8.0.15/include/mysql]
        --libs           [-L/usr/local/Cellar/mysql/8.0.15/lib -lmysqlclient -lssl -lcrypto]
        --libs_r         [-L/usr/local/Cellar/mysql/8.0.15/lib -lmysqlclient -lssl -lcrypto]
        --plugindir      [/usr/local/Cellar/mysql/8.0.15/lib/plugin]
        --socket         [/tmp/mysql.sock]
        --port           [0]
        --version        [8.0.15]
        --variable=VAR   VAR is one of:
                pkgincludedir [/usr/local/Cellar/mysql/8.0.15/include/mysql]
                pkglibdir     [/usr/local/Cellar/mysql/8.0.15/lib]
                plugindir     [/usr/local/Cellar/mysql/8.0.15/lib/plugin]

libmysqlclient depends on -lssl -lcrypto which are not added as dependencies in configure.ac

the fix is simple:

--- a/configure.ac
+++ b/configure.ac
@@ -709,7 +709,8 @@ if test "$MYSQL_CONFIG" != "" ; then
     LIBS_SAVED="$LIBS"
 
     CPPFLAGS="$MYSQL_CPPFLAGS $CPPFLAGS"
-    LIBS="$MYSQL_LIBS $LIBS"
+    LIBS="$MYSQL_LIBS $LIBS $CRYPTO_LIBS"
 
     AC_LINK_IFELSE(
         [AC_LANG_PROGRAM([#include <mysql.h>],