gnunet-fuse (was: Re: A package picks up a non-master package - bug or intentional?)

[ng0 <contact.ng0@cryptolab.net>]

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Hi,

patch file of the package in question attached.

On 17-02-16 08:46:46, Ricardo Wurmus wrote:
> 
> ng0 <contact.ng0@cryptolab.net> writes:
> 
> > On 17-02-15 22:24:58, Ricardo Wurmus wrote:
> >> 
> >> ng0 <contact.ng0@cryptolab.net> writes:
> >> 
> >> > I just picked up gnunet-fuse again and the build behaves strange.
> >> >
> >> > You have to know that I keep multiple versions of gnunet and related
> >> > packages in my GUIX_PACKAGE_PATH.
> >> > Normally I would expect that this:
> >> >
> >> > +    (arguments
> >> > +     `(#:configure-flags
> >> > +       (list (string-append "--with-gnunet="
> >> > +                            (assoc-ref %build-inputs "gnunet")))))
> >> >
> >> > just picks up the gnunet from within the master tree the package
> >> > definition itself is in.
> >> > But as I recently have build "gnunetgf-0.10.17731daf5" this is being
> >> > picked up instead as you can see here:
> >> >
> >> > checking fuse.h usability... yes
> >> > checking fuse.h presence... yes
> >> > checking for fuse.h... yes
> >> > checking for GNUnet core... /gnu/store/xbvcn8fqp5l45dh5s32nmqmvbykahq7k-gnunetgf-0.10.17731daf5
> >> > checking for GNUnet util library in /gnu/store/xbvcn8fqp5l45dh5s32nmqmvbykahq7k-gnunetgf-0.10.17731daf5... checking for gnunet/gnunet_util_lib.h... no
> >> > configure: error: gnunet-fuse requires GNUnet
> >> > phase `configure' failed after 2.8 seconds
> >> >
> >> >
> >> > I wonder.. why? Is Guix just not clever enough and picks the first
> >> > fitting "gnunet" it finds and if already available its store path?
> >> 
> >> Guix doesn’t *look* for any packages, so it doesn’t need to be clever.
> >> You *tell* it what exact package to use.  Only packages that you have
> >> declared as inputs will be available.  To declare a package as an input
> >> you add *the package itself* (by unquoting a symbol that evaluates to a
> >> package value).  There is no ambiguity, neither at build time nor at
> >> runtime of Guix.
> >> 
> >> The confusion here is probably in what package value the symbol in the
> >> inputs resolves to.  And this depends on the modules that are loaded.
> >> We would need to see the full package definition and see what values the
> >> package variables correspond to.
> >
> > Okay, I will send the patch tomorrow.
> >
> > This is inside (gnu packages gnunet), so my personal modules aren't in
> > there. The package name 'gnunet' is unique:
> >
> > ng0@wasp ~> guix package --search=gnunet
> 
> What matters is not the package name but the name (and value) of the
> Scheme variable that is referenced in the inputs.  They are often
> identical, but since we’re speaking of non-intuitive behaviour it may
> well be that the names differ in this case.
> 
> -- 
> Ricardo
> 
> GPG: BCA6 89B6 3655 3801 C3C6  2150 197A 5888 235F ACAC
> https://elephly.net
> 

-- 
ng0 -- https://www.inventati.org/patternsinthechaos/

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From b01415b2513d40f970269eb33393364d6d18a7e5 Mon Sep 17 00:00:00 2001
From: ng0 <ng0@we.make.ritual.n0.is>
Date: Mon, 19 Sep 2016 16:23:53 +0000
Subject: [PATCH] gnu: Add gnunet-fuse.

* gnu/packages/gnunet.scm (gnunet-fuse): New variable.
---
 gnu/packages/gnunet.scm | 29 +++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)

diff --git a/gnu/packages/gnunet.scm b/gnu/packages/gnunet.scm
index a4514a7f4..27ed58b6a 100644
--- a/gnu/packages/gnunet.scm
+++ b/gnu/packages/gnunet.scm
@@ -393,3 +393,32 @@ services.")
      `(("pkg-config" ,pkg-config)
        ("libglade" ,libglade)))
     (synopsis "Graphical front-end tools for GNUnet")))
+
+(define-public gnunet-fuse
+  (package
+    (name "gnunet-fuse")
+    (version "0.10.0")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append "mirror://gnu/gnunet/gnunet-fuse-"
+                                  version ".tar.gz"))
+              (sha256
+               (base32
+                "0ggc2gkyd6qvd4a9z84xbynq5jajbldbx6qkh79k9zjiycz2ffbb"))))
+    (arguments
+     `(#:configure-flags
+       (list (string-append "--with-gnunet="
+                            (assoc-ref %build-inputs "gnunet")))))
+    (build-system gnu-build-system)
+    (inputs
+     `(("gnunet" ,gnunet)
+       ("fuse" ,fuse)))
+    (native-inputs
+     `(("pkg-config" ,pkg-config)))
+    (synopsis "Mount directories which are published on GNUnet")
+    (description
+     "GNUnet-fuse allows you to mount directories published on GNUnet
+as read-only file-systems on operating systems that support the
+FUSE API).")
+    (license license:gpl3+)
+    (home-page "https://gnunet.org/")))
-- 
2.11.1