diff -ru src/part.c b/part.c
--- src/part.c	Thu May 14 06:01:00 2009 -0400
+++ b/part.c 	Thu May 14 06:01:00 2009 -0400
@@ -1767,8 +1767,8 @@
 /* to compute number of partitions */
 {
     INT erg = OK;
-    if (ni<0) return;
-    if (not EMPTYP(S_V_I(vec,ni))) return;
+    if (ni<0) return 0;
+    if (not EMPTYP(S_V_I(vec,ni))) return 0;
     else if (ni<=1) M_I_I(1,S_V_I(vec,ni));
     else {
     
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<div class='path'>path: <a href='/guix/log/?id=91f92f32d5a9317dd333d570b54c2ba34c9c14a9&amp;showmsg=1'>root</a>/<a href='/guix/log/tests?id=91f92f32d5a9317dd333d570b54c2ba34c9c14a9&amp;showmsg=1'>tests</a>/<a href='/guix/log/tests/guix-pack-relocatable.sh?id=91f92f32d5a9317dd333d570b54c2ba34c9c14a9&amp;showmsg=1'>guix-pack-relocatable.sh</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/guix/log/tests/guix-pack-relocatable.sh?id=91f92f32d5a9317dd333d570b54c2ba34c9c14a9'>Collapse</a>)</th><th class='left'>Author</th></tr>
<tr class='logheader'><td><span title='2023-02-27 23:40:43 +0100'>2023-02-27</span></td><td class='logsubject'><a href='/guix/commit/tests/guix-pack-relocatable.sh?id=92a0e60a963a54230e400c5c2ae585205489bf35'>pack: Adjust shell tests to read-only tarball root.</a></td><td>Ludovic Courtès</td></tr>
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Fixes &lt;https://issues.guix.gnu.org/61853&gt;.

Fixes a regression introduced in
68380db4c40a2ee1156349a87254fd7b1f1a52d5, whereby the tarball's root
entry is now read-only, due to the creation of "profile-directory" in
the store.

* tests/guix-pack.sh: Remove and recreate $test_directory before
transformation option test.
* tests/guix-pack-relocatable.sh: Add "chmod +w $test_directory" lines
before attempts to write to it.


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