GCC compilation error when installing Nokogiri

Question

I'm trying to run bundle install but I'm getting the Error while trying to Install Nokogiri 1.10.3

Here is the error message from mkmf.log.

gcc -o conftest -I/home/chille/.rvm/rubies/ruby-2.5.1/include/ruby-2.5.0/x86_64-linux -I/home/chille/.rvm/rubies/ruby-2.5.1/include/ruby-2$
gcc: error: unrecognized command line option '-Wmisleading-indentation'
gcc: error: unrecognized command line option '-Wimplicit-fallthrough=0'
gcc: error: unrecognized command line option '-Wduplicated-cond'
gcc: error: unrecognized command line option '-Wrestrict'

Answer 1

For those who do not read comments

Debian 10 users, if you find

 gcc: error: unrecognized command line option '-Wduplicated-cond'

in mkmf.log

brew unlink gcc

is what you are looking for. I spend an hour looking for an answer and yes, i once missed the answer here, but luckily i have returned and spotted it.