I\'m trying to install libxml-ruby. I have installed libxml2, libxslt and coreutils
libxml-ruby
libxml2
libxslt
coreutils
I have also read other posts rega
One solution is to:
cd /Library/Developer/CommandLineTools/Packages/ $ open macOS_SDK_headers_for_macOS_10.14.pkg
To force the reinstallation of the headers for macOS 10.14.