Install fails during openssl install

[atombender]

$ rbenv -v
rbenv 1.1.2

$ ruby-build --version
ruby-build 20191124

$ rbenv install 2.3.8
Downloading openssl-1.0.2q.tar.gz...
-> https://dqw8nmjcqpjn7.cloudfront.net/5744cfcbcec2b1b48629f7354203bc1e5e9b5466998bbccc5b5fcde3b18eb684
Installing openssl-1.0.2q...

BUILD FAILED (OS X 10.15.1 using ruby-build 20191124)

Inspect or clean up the working tree at /var/folders/qs/wpmg19r12_9_nz7pvvs2_82r0000gn/T/ruby-build.20191202161339.37687.QjQINd
Results logged to /var/folders/qs/wpmg19r12_9_nz7pvvs2_82r0000gn/T/ruby-build.20191202161339.37687.log

Last 10 log lines:
helpful: ld(1), ld.so(1), ld.so.1(1) [Solaris], dld.sl(1) [HP],
ldd(1), crle(1) [Solaris], pldd(1) [Solaris], ldconfig(8) [Linux],
chatr(1) [HP].
cp libcrypto.pc /Users/alex/.rbenv/versions/2.3.8/openssl/lib/pkgconfig
chmod 644 /Users/alex/.rbenv/versions/2.3.8/openssl/lib/pkgconfig/libcrypto.pc
cp libssl.pc /Users/alex/.rbenv/versions/2.3.8/openssl/lib/pkgconfig
chmod 644 /Users/alex/.rbenv/versions/2.3.8/openssl/lib/pkgconfig/libssl.pc
cp openssl.pc /Users/alex/.rbenv/versions/2.3.8/openssl/lib/pkgconfig
chmod 644 /Users/alex/.rbenv/versions/2.3.8/openssl/lib/pkgconfig/openssl.pc
make: Leaving directory `/private/var/folders/qs/wpmg19r12_9_nz7pvvs2_82r0000gn/T/ruby-build.20191202161339.37687.QjQINd/openssl-1.0.2q'

The actual failure, in the middle of that log, seems to be:

Cannot create directory /Users/alex/.rbenv/versions/2.3.8: File exists

However, that folder does not exist when I run rbenv.

Installing with RUBY_CONFIGURE_OPTS="--with-opt-dir=/usr/local/opt/openssl" (which still downloads and compiles OpenSSL, not sure how to disable that?) seems to work.

ruby-build.20191202161339.37687.log

[wadkar]

I think the required openssl flag is --with-openssl-dir=$(brew --prefix openssl) and not --with-opt-dir. See this issue#comment for full instructions.