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gjtorikian / mathematical

Convert mathematical equations to SVGs, PNGs, or MathML. A general wrapper to Lasem and mtex2MML.
https://gjtorikian.github.io/mathematical/
MIT License
166 stars 31 forks source link

Installation failed: Couldn't find header files for ruby "ruby.h" #84

Closed JanFeld closed 6 years ago

JanFeld commented 6 years ago

Installation exited because it couldn't find ruby.h.

ERROR:  Error installing asciidoctor-mathematical:
ERROR: Failed to build gem native extension.

current directory: /var/lib/gems/2.5.0/gems/mathematical-1.6.11/ext/mathematical
/usr/bin/ruby2.5 -r ./siteconf20180620-5797-1shuyzq.rb extconf.rb
mkmf.rb can't find header files for ruby at /usr/lib/ruby/include/ruby.h

After installing ruby2.5-dev it worked. Maybe you could/should mention that as dependency.

I'm running Debian Testing (Buster) with 4.16.12-1 (2018-05-27) kernel.

I tried to install asciidoctor-mathematical and installed all mentioned dependencies before.

gjtorikian commented 6 years ago

Which version of Ruby was installed previously? Or are you asking that a *-dev version be explicitly mentioned? (Which makes sense, just trying to sort out what the ask is.)

JanFeld commented 6 years ago

I never installed ruby manually it was the pre installed version or at least a version which has been installed through dependencies. I think it was 2.5.0 or 2.5.1.

But yes, i think it would be good to mention that the header files are needed so a *-dev version must be installed.