# GNU Guix --- Functional package management for GNU
-# Copyright © 2018 Ludovic Courtès <ludo@gnu.org>
+# Copyright © 2018, 2019, 2020 Ludovic Courtès <ludo@gnu.org>
#
# This file is part of GNU Guix.
#
test "$v0_1_0_drv" != "$latest_drv"
test "$v0_1_0_drv" != "$orig_drv"
-if guix build guix --with-commit=guile-gcrypt=000 -d
-then false; else true; fi
+v0_1_0_drv="`guix build guix --with-commit=guile-gcrypt=v0.1.0 -d`"
+guix gc -R "$v0_1_0_drv" | grep guile-gcrypt-0.1.0
+guix gc -R "$v0_1_0_drv" | grep guile-gcrypt-8fe64e8 # this is the tag ID
+test "$v0_1_0_drv" != "$latest_drv"
+test "$v0_1_0_drv" != "$orig_drv"
+
+! guix build guix --with-commit=guile-gcrypt=000 -d