Can't run on nanobox: can't modify frozen Array

[steveklebanoff]

Trying to run this on nanobox.io. At first I was getting the "TypeError: no implicit conversion of nil into String" error found on #25. I then updated the Gemfile to fetch the latest revision from github, and now I get this error:

Using rbnacl-libsodium 1.0.16 from https://github.com/crypto-rb/rbnacl-libsodium.git (at c1ee4d6@c1ee4d6)
Gem::Ext::BuildError: ERROR: Failed to build gem native extension.

current directory:
/app/vendor/bundle/ruby/2.3.0/bundler/gems/rbnacl-libsodium-c1ee4d621b2e/ext/rbnacl
/data/bin/ruby -r ./siteconf20180417-984-14el4ip.rb extconf.rb
extconf.rb:22:in `<main>': can't modify frozen Array (RuntimeError)

extconf failed, exit code 1

Isolated repo here: https://github.com/steveklebanoff/libsodium-nanobox-example/blob/master/README.md

[steveklebanoff]

@tarcieri it looks like it's failing on this line: https://github.com/crypto-rb/rbnacl-libsodium/blob/master/ext/rbnacl/extconf.rb#L22

it looks like we are trying to append to a frozen array. this was introduced by fb8bfb6

[steveklebanoff]

With the .freeze removed, this new error appears:

Gem::Ext::BuildError: ERROR: Failed to build gem native extension.

current directory:
/app/vendor/bundle/ruby/2.3.0/bundler/gems/rbnacl-libsodium-6e720c884d5e/ext/rbnacl
/data/bin/ruby -r ./siteconf20180418-987-1rpbt3t.rb extconf.rb
-- sh -c "./configure
--prefix=/app/vendor/bundle/ruby/2.3.0/bundler/gems/rbnacl-libsodium-6e720c884d5e/tmp/x86_64-linux/stage/vendor/libsodium/dist
--host=x86_64-debian-linux"
sh: 1: ./configure: not found
extconf.rb:8:in `sys': ERROR: 'sh -c "./configure
--prefix=/app/vendor/bundle/ruby/2.3.0/bundler/gems/rbnacl-libsodium-6e720c884d5e/tmp/x86_64-linux/stage/vendor/libsodium/dist
--host=x86_64-debian-linux"' failed (RuntimeError)
from extconf.rb:36:in `block in <main>'
from extconf.rb:34:in `chdir'
from extconf.rb:34:in `<main>'

extconf failed, exit code 1

Gem files will remain installed in
/app/vendor/bundle/ruby/2.3.0/bundler/gems/rbnacl-libsodium-6e720c884d5e for
inspection.
Results logged to
/app/vendor/bundle/ruby/2.3.0/bundler/gems/extensions/x86_64-linux/2.3.0/rbnacl-libsodium-6e720c884d5e/gem_make.out

[joshleblanc]

Building from github doesn't work. The git submodule for libsodium doesn't have the configure script, so it's going to fail.

I'll post a comment on your other issue regarding that.

[tarcieri]

FYI: I plan on deprecating this gem. Therefore I am closing all other open issues.

Please discuss any concerns on #29.