HP Tools under MacOS ?

[Sylvain Cote]

Apple has moved it's development tools to LLVM and GCC is no longer supported by the company.
There are several ways to bring back GCC to macOS Sierra (10.12).
First, you need to install XCode and the XCode Command Line Tools (xcode-select --install)
Here are two ways out of many to install GCC:
a) you can install MacPorts and then install one of the ported GCC version
b) you can also take the route of compiling it yourself, like described in Compiling GCC 6 on macOS Sierra
Regards,
Sylvain