Failed to build gem native extension

[imranniazikhan]

Before submitting an issue, please make sure you fully read any potential error messages output and did some research on your own.

Subject of the issue

Failed to build gem native extension

Your environment

• Version of WPScan: Not installed yet due to error
• Version of Ruby: ruby 3.0.2p107 (2021-07-07 revision 0db68f0233) [x86_64-linux-gnu]
• Operating System (OS): Ubuntu 22.04.4 LTS

Actual behavior

When i sudo gem install wpscan, it produce the following errors.

Tell us what happens instead.
root@imran-VB:~# gem install wpscan
Building native extensions. This could take a while...
ERROR: Error installing wpscan:
ERROR: Failed to build gem native extension.

current directory: /var/lib/gems/3.0.0/gems/yajl-ruby-1.4.3/ext/yajl

/usr/bin/ruby3.0 -I /usr/lib/ruby/vendor_ruby -r ./siteconf20240619-4753-2yzy62.rb extconf.rb
creating Makefile

current directory: /var/lib/gems/3.0.0/gems/yajl-ruby-1.4.3/ext/yajl
make DESTDIR= clean

current directory: /var/lib/gems/3.0.0/gems/yajl-ruby-1.4.3/ext/yajl
make DESTDIR=
compiling yajl.c
make: x86_64-linux-gnu-gcc: No such file or directory
make: *** [Makefile:245: yajl.o] Error 127

make failed, exit code 2

Gem files will remain installed in /var/lib/gems/3.0.0/gems/yajl-ruby-1.4.3 for inspection.
Results logged to /var/lib/gems/3.0.0/extensions/x86_64-linux/3.0.0/yajl-ruby-1.4.3/gem_make.out

PLEASE HELP ME

[c-hartmann]

on Linux (Ubuntu) installing package 'ruby-dev' solved the failing building process:

$ sudo apt install ruby-dev
$ sudo gem install wpscan

[markagonzales]

I had to install ruby-yajl from the package manager to get wpscan working. I'm not familiar with Ruby but this is what I ended up doing. Note that this was doing in an Ubuntu container.

root@698e516f4dfd:/# cat /etc/os-release | grep PRETTY
PRETTY_NAME="Ubuntu 24.04.1 LTS"
root@698e516f4dfd:/# apt install -y ruby-dev ruby-yajl curl
root@698e516f4dfd:/# ruby --version
ruby 3.2.3 (2024-01-18 revision 52bb2ac0a6) [x86_64-linux-gnu]
root@fdf4c72a8900:/# wpscan --version | grep 'Current Version'
Current Version: 3.8.27