既然已经过了几个月了我想我最后还是来问问吧。我无法在MacOS Ventura上使用RVM安装任何版本的Ruby。这似乎与其他人遇到的问题无关。我试过所有其他的解决办法。但这似乎与OpenSSL或类似的东西无关。
我收到的错误也与这些情况有点不同：

Error running '__rvm_make -j8'

首先…这是我运行时得到的日志的最后几行：rvm install 2.6.10

objspace.c:630:23: warning: '(' and '{' tokens introducing statement expression appear in different macro expansion contexts [-Wcompound-token-split-by-macro]
        imemo_type_ids[10] = rb_intern("imemo_parser_strterm");
                             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../.././include/ruby/ruby.h:1826:23: note: expanded from macro 'rb_intern'
        __extension__ (RUBY_CONST_ID_CACHE((ID), (str))) : \
                      ^
objspace.c:630:23: note: '{' token is here
        imemo_type_ids[10] = rb_intern("imemo_parser_strterm");
                             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../.././include/ruby/ruby.h:1826:24: note: expanded from macro 'rb_intern'
        __extension__ (RUBY_CONST_ID_CACHE((ID), (str))) : \
                       ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../.././include/ruby/ruby.h:1811:5: note: expanded from macro 'RUBY_CONST_ID_CACHE'
    {                                                   \
    ^
objspace.c:630:23: warning: '}' and ')' tokens terminating statement expression appear in different macro expansion contexts [-Wcompound-token-split-by-macro]
        imemo_type_ids[10] = rb_intern("imemo_parser_strterm");
                             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../.././include/ruby/ruby.h:1826:24: note: expanded from macro 'rb_intern'
        __extension__ (RUBY_CONST_ID_CACHE((ID), (str))) : \
                       ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../.././include/ruby/ruby.h:1816:5: note: expanded from macro 'RUBY_CONST_ID_CACHE'
    }
    ^
objspace.c:630:23: note: ')' token is here
        imemo_type_ids[10] = rb_intern("imemo_parser_strterm");
                             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../.././include/ruby/ruby.h:1826:56: note: expanded from macro 'rb_intern'
        __extension__ (RUBY_CONST_ID_CACHE((ID), (str))) : \
                                                       ^
1342 warnings generated.
linking shared-object objspace.bundle
make: *** [build-ext] Error 2
+__rvm_make:0> return 2

我还安装了最新版本的macports（并使其路径正确工作），并重新安装了OpenSSL。卸载和重新安装HomeBrew多次...似乎没有什么帮助。

更新：这是我能找到的一个错误。

error: use of undeclared identifier 'username_completion_function'; did you mean 'rl_username_completion_function'?
        __extension__ (RUBY_CONST_ID_CACHE((ID), (str))) : \

我到处找日志，但找不到第二个错误。