From 2e14ca198230878405a00d4351e5424a7b964a22 Mon Sep 17 00:00:00 2001
From: Tobias Geerinckx-Rice <me@tobias.gr>
Date: Tue, 26 Jun 2018 16:39:45 +0200
Subject: gnu: slib: Return #t from phases.

* gnu/packages/scheme.scm (slib)[arguments]: Substitute INVOKE for
SYSTEM*. Return #t rather than undefined from phases.
---
 gnu/packages/scheme.scm | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/gnu/packages/scheme.scm b/gnu/packages/scheme.scm
index 4d5c835454..db39632f0c 100644
--- a/gnu/packages/scheme.scm
+++ b/gnu/packages/scheme.scm
@@ -882,12 +882,13 @@ regular-expression notation.")
          (add-after 'install 'remove-bin-share
                     (lambda* (#:key inputs outputs #:allow-other-keys)
                       (delete-file-recursively
-                       (string-append (assoc-ref outputs "out") "/bin"))))
+                       (string-append (assoc-ref outputs "out") "/bin"))
+                      #t))
          (replace 'configure
                   (lambda* (#:key inputs outputs #:allow-other-keys)
-                    (zero? (system* "./configure"
-                                    (string-append "--prefix="
-                                                   (assoc-ref outputs "out")))))))))
+                    (invoke "./configure"
+                            (string-append "--prefix="
+                                           (assoc-ref outputs "out"))))))))
     (native-inputs `(("unzip" ,unzip)
                      ("texinfo" ,texinfo)))
     (home-page "http://people.csail.mit.edu/jaffer/SLIB.html")
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