Can't install Jekyll on Mint - ruby-on-rails

Question

I installed ruby and ruby gems, updated both of them, tried to install jekyll using the command
sudo gem install jekyll bundler
it gave me this
Building native extensions. This could take a while...
ERROR: Error installing jekyll:
ERROR: Failed to build gem native extension.
current directory: /var/lib/gems/2.3.0/gems/ffi-1.9.14/ext/ffi_c
/usr/bin/ruby2.3 -r ./siteconf20161209-4826-wdshax.rb extconf.rb
checking for ffi.h... *** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of necessary
libraries and/or headers. Check the mkmf.log file for more details. You may
need configuration options.
Provided configuration options:
--with-opt-dir
--without-opt-dir
--with-opt-include
--without-opt-include=${opt-dir}/include
--with-opt-lib
--without-opt-lib=${opt-dir}/lib
--with-make-prog
--without-make-prog
--srcdir=.
--curdir
--ruby=/usr/bin/$(RUBY_BASE_NAME)2.3
--with-ffi_c-dir
--without-ffi_c-dir
--with-ffi_c-include
--without-ffi_c-include=${ffi_c-dir}/include
--with-ffi_c-lib
--without-ffi_c-lib=${ffi_c-dir}/lib
--with-libffi-config
--without-libffi-config
--with-pkg-config
--without-pkg-config
/usr/lib/ruby/2.3.0/mkmf.rb:456:in `try_do': The compiler failed to generate an executable file. (RuntimeError)
You have to install development tools first.
from /usr/lib/ruby/2.3.0/mkmf.rb:587:in `try_cpp'
from /usr/lib/ruby/2.3.0/mkmf.rb:1091:in `block in have_header'
from /usr/lib/ruby/2.3.0/mkmf.rb:942:in `block in checking_for'
from /usr/lib/ruby/2.3.0/mkmf.rb:350:in `block (2 levels) in postpone'
from /usr/lib/ruby/2.3.0/mkmf.rb:320:in `open'
from /usr/lib/ruby/2.3.0/mkmf.rb:350:in `block in postpone'
from /usr/lib/ruby/2.3.0/mkmf.rb:320:in `open'
from /usr/lib/ruby/2.3.0/mkmf.rb:346:in `postpone'
from /usr/lib/ruby/2.3.0/mkmf.rb:941:in `checking_for'
from /usr/lib/ruby/2.3.0/mkmf.rb:1090:in `have_header'
from extconf.rb:16:in `<main>'
To see why this extension failed to compile, please check the mkmf.log which can be found here:
/var/lib/gems/2.3.0/extensions/x86_64-linux/2.3.0/ffi-1.9.14/mkmf.log
extconf failed, exit code 1
Gem files will remain installed in /var/lib/gems/2.3.0/gems/ffi-1.9.14 for inspection.
Results logged to /var/lib/gems/2.3.0/extensions/x86_64-linux/2.3.0/ffi-1.9.14/gem_make.out
Successfully installed bundler-1.13.6
Parsing documentation for bundler-1.13.6
Done installing documentation for bundler after 7 seconds
1 gem installed
Here is what it says in the log file:
package configuration for libffi is not found
"gcc -o conftest -I/usr/include/x86_64-linux-gnu/ruby-2.3.0 -I/usr/include/ruby-2.3.0/ruby/backward -I/usr/include/ruby-2.3.0 -I. -Wdate-time -D_FORTIFY_SOURCE=2 -g -O2 -fstack-protector-strong -Wformat -Werror=format-security -fPIC conftest.c -L. -L/usr/lib/x86_64-linux-gnu -L. -Wl,-Bsymbolic-functions -Wl,-z,relro -Wl,-z,now -fstack-protector -rdynamic -Wl,-export-dynamic -lruby-2.3 -lpthread -lgmp -ldl -lcrypt -lm -lc"
In file included from /usr/include/ruby-2.3.0/ruby/ruby.h:36:0,
from /usr/include/ruby-2.3.0/ruby.h:33,
from conftest.c:1:
/usr/include/ruby-2.3.0/ruby/defines.h:26:19: fatal error: stdio.h: No such file or directory
compilation terminated.
checked program was:
/* begin */
1: #include "ruby.h"
2:
3: int main(int argc, char **argv)
4: {
5: return 0;
6: }
/* end */
I'm running Linux Mint, and I can't find anything to help this problem. One gem of jekyll is installed and I'm able to create jekyll projects, but only partially and I can't run it on my local host and edit it.
Any more questions let me know and I'll try my best to help provide the details.

Answer 1

I had the same problem on Linux Mint 18. Installing build-essential solved it:
sudo apt-get install build-essential

Answer 2

I've been there. Some linux need custom treatment till get done to do something.
You can try to
bundle exec jekyll serve --trace
If you pass, you will find url like this: http://127.0.0.1:4000/