Chris911/iStats

Failed installation on MacOS 10.14.5

seamusdemora opened this issue · 5 comments

seamusdemora commented

MacOS 10.14.5, no Homebrew (really do NOT want it), no complete Xcode install, but do have parts of it installed (cmd line tools???)

Looked at this issue, but so many trial-and-error solutions offerred, it's unclear exactly what the resolution is. Here's the error I get:

$ sudo gem install iStats
Fetching: sparkr-0.4.1.gem (100%)
Successfully installed sparkr-0.4.1
Fetching: parseconfig-1.0.8.gem (100%)
Successfully installed parseconfig-1.0.8
Fetching: iStats-1.6.1.gem (100%)
Building native extensions.  This could take a while...
ERROR:  Error installing iStats:
	ERROR: Failed to build gem native extension.

    current directory: /Library/Ruby/Gems/2.3.0/gems/iStats-1.6.1/ext/osx_stats
/System/Library/Frameworks/Ruby.framework/Versions/2.3/usr/bin/ruby -r ./siteconf20190529-1855-1jap8gj.rb extconf.rb
mkmf.rb can't find header files for ruby at /System/Library/Frameworks/Ruby.framework/Versions/2.3/usr/lib/ruby/include/ruby.h

extconf failed, exit code 1

Gem files will remain installed in /Library/Ruby/Gems/2.3.0/gems/iStats-1.6.1 for inspection.
Results logged to /Library/Ruby/Gems/2.3.0/extensions/universal-darwin-18/2.3.0/iStats-1.6.1/gem_make.out
Chris911 commented

Try xcode-select --install first. It installs tools required to build the package. Then sudo gem install iStats.

  • 👍1
seamusdemora commented

Yes! Thanks, that did it:

$ xcode-select --install
xcode-select: note: install requested for command line developer tools

Which spawned a gui for install of the command line tools & authentication, and then:

$ sudo gem install iStats
Password:
Building native extensions.  This could take a while...
Successfully installed iStats-1.6.1
Parsing documentation for iStats-1.6.1
Installing ri documentation for iStats-1.6.1
Done installing documentation for iStats after 0 seconds
1 gem installed

And finally:

$ istats cpu
CPU temp:               35.06°C     ▁▂▃▅▆▇

Just one other question: As a command line tool, I imagined there would be a manual, but man istats yields nothing. Yet, the install confirmed documentation was installed. What am I missing?

Chris911 commented

No man entry but you can use istats --help to see all the available options.

  • 👍1
seamusdemora commented

OK, thanks... so the --help option is the documentation?

Chris911 commented

Yes. If you have any other questions you can let me know.

  • 👍1