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Accepted
Barry B. Benson
Asked: 2020-06-28 14:57:27 +0800 CST 2020-06-28 14:57:27 +0800 CST

Error installing bcrypt using bundle install

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I was installing the gems with which Metasploit operates, and in the bcrypt library I got this error:

Fetching bcrypt 3.1.13
Installing bcrypt 3.1.13 with native extensions
Gem::Ext::BuildError: ERROR: Failed to build gem native extension.

current directory:
/data/data/com.termux/files/usr/lib/ruby/gems/2.6.0/gems/bcrypt-3.1.13/ext/mri
/data/data/com.termux/files/usr/bin/ruby -I
/data/data/com.termux/files/usr/lib/ruby/2.6.0 -r ./siteconf20190627-18317-12zh00w.rb
extconf.rb
creating Makefile

current directory:
/data/data/com.termux/files/usr/lib/ruby/gems/2.6.0/gems/bcrypt-3.1.13/ext/mri
make "DESTDIR=" clean

current directory:
/data/data/com.termux/files/usr/lib/ruby/gems/2.6.0/gems/bcrypt-3.1.13/ext/mri
make "DESTDIR="
compiling bcrypt_ext.c
compiling crypt_blowfish.c
arm-linux-androideabi-clang  -D__SKIP_GNU -I/data/data/com.termux/files/usr/include
-c -o x86.o x86.S
x86.S:202:29: error: expected '%<type>' or "<type>"
.section .note.GNU-stack,"",@progbits
                            ^
make: *** [<builtin>: x86.o] Error 1

make failed, exit code 2

Gem files will remain installed in
/data/data/com.termux/files/usr/lib/ruby/gems/2.6.0/gems/bcrypt-3.1.13 for inspection.
Results logged to
/data/data/com.termux/files/usr/lib/ruby/gems/2.6.0/extensions/arm-linux/2.6.0/bcrypt-3.1.13/gem_make.out

An error occurred while installing bcrypt (3.1.13), and Bundler cannot
continue.
Make sure that `gem install bcrypt -v '3.1.13' --source 'https://rubygems.org/'`
succeeds before bundling.

In Gemfile:
  metasploit-framework was resolved to 5.0.33, which depends on
    bcrypt

I already tried with gem install bcrypt -v 3.1.13and installing ruby-dev, rvm, json, build-essential, but nothing. They have already asked this same question, but the answers are not my solution. Thanks for answering. Best regards.

ruby

1 Answers

  1. Best Answer

    The error appears to occur in the latest version, which added this PR (which is where the error you show is generated x86.S:202:29: error: expected '%<type>' or "<type>"). In fact, it seems that this is not the first error reported for this change in ARM systems. I think you could try installing the previous version:

    gem install bcrypt -v 3.1.12

    Regarding metasploit, you could modify the Gemfile.lock to use the old version. I think it shouldn't give any major problems, since it would be a patch downgrade.

    If you want to contribute your grain of sand, I think it would be a good idea to report the bug in the project repository(s). Cheers

    • 1