Thanks for reviewing! Here's an updated patch based on your feedback. 

On 2017-12-15 15:16, ludo@gnu.org wrote:

> Hello!
> 
> Rutger Helling <rhelling@mykolab.com> skribis:
> 
>> From ccea9a6c9dd71aea5ef5c07802f7e376a7f86a96 Mon Sep 17 00:00:00 2001
>> From: Rutger Helling <rhelling@mykolab.com>
>> Date: Fri, 15 Dec 2017 11:58:10 +0100
>> Subject: [PATCH] gnu: virtualization: Add lookingglass.
>> 
>> * gnu/packages/virtualization.scm (lookingglass): New variable.
> 
> [...]
> 
>> +(define-public lookingglass
>> +  (package
>> +   (name "lookingglass")
> 
> Please run:
> 
> ./etc/indent-code.el gnu/packages/virtualization.scm lookingglass
> 
>> +   (version "a5")
>> +   (source
>> +    (origin
>> +     (method url-fetch)
>> +     (uri (string-append "https://github.com/gnif/LookingGlass/archive/"
>> +                         version ".tar.gz"))
>> +     (file-name (string-append name "-" version))
>> +     (sha256
>> +      (base32
>> +       "0lrb821914fp27xaq0spwhbblssz55phiygvdlvcrkifa138v8pf"))))
>> +   (build-system gnu-build-system)
>> +   (inputs `(("fontconfig" ,fontconfig)
>> +             ("glu" ,glu)
>> +             ("mesa" ,mesa)
>> +             ("openssl" ,openssl)
>> +             ("sdl2" ,sdl2)
>> +             ("sdl2-ttf" ,sdl2-ttf)
>> +             ("spice-protocol" ,spice-protocol)))
>> +   (native-inputs `(("pkg-config", pkg-config)))
>> +   (arguments
>> +    `(#:tests? #f ;; No tests are available.
>> +      #:phases (modify-phases %standard-phases
>> +                 (replace 'configure
>> +                    (lambda* (#:key outputs #:allow-other-keys)
>> +                      (chdir "client")))
> 
> Return #t.
> 
>> +                  (replace 'install
>> +                    (lambda* (#:key outputs #:allow-other-keys)
>> +                      (mkdir-p (string-append %output "/bin"))
>> +                      (copy-file "bin/looking-glass-client" (string-append
>> +                                 %output "/bin/looking-glass-client")))))))
> 
> Same here.
> 
> Use the 'outputs' argument instead of the '%output' global variable.
> 
> Also, you can replace the mkdir-p/copy-file pair with just:
> 
> (install-file "bin/looking-glass-client"
> (string-append (assoc-ref outputs "out") "/bin"))
> 
>> +   (home-page "https://looking-glass.hostfission.com")
>> +   (synopsis "Low-latency KVMFR implementation for QEMU guests with VGA PCI
>> +passthrough")
>> +   (description "LookingGlass is an extremely low latency KVMFR (KVM FrameRelay)
>> +implementation for QEMU guests with VGA PCI Passthrough.")
> 
> Could you shorten the synopsis and expound the description a little bit?
> :-)  I find it hard to understand what this is about looking at this.
> 
>> +   (license gpl2)))
> 
> AFAICS source file headers explicitly say "or any later version", so
> this should be 'gpl2+'.
> 
> The rest LGTM.  Could you send an updated patch?
> 
> Thank you!
> 
> Ludo'.