bug#26136: core-updates: address@hidden fails due to missing zlib

[Ludovic Courtès]

Hi!

Adding libffi and zlib solves the problem, similar to address@hidden

Go for it?  :-)

Ludo’.

>From 1cb73a54813136632553f03063abdd5cd105a760 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ludovic=20Court=C3=A8s?= <address@hidden>
Date: Sun, 19 Mar 2017 22:10:12 +0100
Subject: [PATCH] gnu: address@hidden: Add dependencies on libffi and zlib.

* gnu/packages/python.scm (python2-minimal)[inputs]: Add LIBFFI and ZLIB.
[arguments]: Remove.
---
 gnu/packages/python.scm | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/gnu/packages/python.scm b/gnu/packages/python.scm
index be452f062..00598776a 100644
--- a/gnu/packages/python.scm
+++ b/gnu/packages/python.scm
@@ -359,11 +359,12 @@ data types.")
   (package (inherit python-2)
     (name "python-minimal")
     (outputs '("out"))
-    (arguments
-     (substitute-keyword-arguments (package-arguments python-2)
-       ((#:configure-flags cf)
-        `(append ,cf '("--without-system-ffi")))))
-    (inputs '())))                          ;none of the optional dependencies
+
+    ;; Keep zlib, which is used by 'pip' (via the 'zipimport' module), which
+    ;; is invoked upon 'make install'.  'pip' also expects 'ctypes' and thus
+    ;; libffi.
+    (inputs `(("libffi" ,libffi)
+              ("zlib" ,zlib)))))
 
 (define-public python-minimal
   (package (inherit python)
-- 
2.12.0