Skip this performance regression test.

The test measures things on the order of 20ms.  On a loaded machine, we
have seen enough variation that the test would fail.

--- grep-2.22/tests/long-pattern-perf	2016-01-03 12:52:38.491575007 +0100
+++ grep-2.22/tests/long-pattern-perf	2016-01-03 12:53:39.768464687 +0100
@@ -16,6 +16,7 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
+exit 77
 . "${srcdir=.}/init.sh"; path_prepend_ ../src
 
 fail=0
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<tr><td><span title='2024-08-31 10:44:45 +0200'>2024-08-31</span></td><td><a href='/guix/commit/gnu/packages/imagemagick.scm?id=db3367f95208d741f1ded67e6ba1604a1f774a32'>gnu: imagemagick: Only install documentation in final imagemagick.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/imagemagick.scm (imagemagick/stable)[arguments]: Add
configure-flag to disable documentation.  Adjust phase to remove
work-around for moving documentation to separate output.
[outputs]: Remove field.
(imagemagick)[arguments]: Remove configure-flag disabling documentation.
Add a phase to move documentation to a separate output.
[outputs]: Keep out, doc outputs.

Change-Id: I34f02612d416ad2ff0edf330a274f93bddf4c53d
</span></span></td><td>Efraim Flashner</td></tr>
<tr><td><span title='2024-08-31 10:44:42 +0200'>2024-08-31</span></td><td><a href='/guix/commit/gnu/packages/imagemagick.scm?id=2e4e3e883b6feea74da2f528cee0af417f16d982'>gnu: imagemagick: Update to 6.9.13-5.</a><span class='msg-avail'>...<span class='msg-tooltip'>This is a follow-up to ac658511ae ("gnu: imagemagick: Update to 6.9.12-91."),
which patch didn't apply cleanly.

* gnu/packages/imagemagick.scm (imagemagick/stable): Update to 6.9.13-5.
[source]: Remove patch.
[configure-flags]: Specify correct --with-gs-font-dir location.
[native-inputs]: Add zstd.
* gnu/packages/patches/imagemagick-fix-tests.patch: Delete file.
* gnu/local.mk (dist_patch_DATA): De-register it.
* gnu/packages/imagemagick.scm (imagemagick): Update to 6.9.13-5.

Change-Id: Ic3ab5ea821de91fb18b80325414444e02e7eecb0
</span></span></td><td>Maxim Cournoyer</td></tr>
<tr><td><span title='2024-08-31 10:44:30 +0200'>2024-08-31</span></td><td><a href='/guix/commit/gnu/packages/imagemagick.scm?id=e77aef7f74caa82baf393f25a0722f444d19cc37'>gnu: imagemagick: Update to 6.9.12-91.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/imagemagick.scm (imagemagick)
(imagemagick/stable): Update to 6.9.12-91.
[patches]: Remove upstreamed patches. Add patch for fixing tests.
[arguments]: Enable tests.
* gnu/packages/patches/imagemagick-Fix-tests.patch: New file.
gnu/packages/patches/imagemagick-CVE-2020-27829.patch: Delete file.
* gnu/packages/patches/imagemagick-WriteTHUMBNAILImage-fix.patch: Likewise.
* gnu/packages/patches/imagemagick-ReadDCMImage-fix.patch: Likewise.
* gnu/packages/patches/imagemagick-ReadDCMPixels-fix.patch: Likewise.
* gnu/local.mk (dist_patch_DATA): Adjust accordingly.

Signed-off-by: Maxim Cournoyer &lt;maxim.cournoyer@gmail.com&gt;
Modified-by: Maxim Cournoyer &lt;maxim.cournoyer@gmail.com&gt;
Change-Id: I4c554abb1e5592590c3af8c57d9113d90de3f194
</span></span></td><td>Saku Laesvuori via Guix-patches via</td></tr>
<tr><td><span title='2024-08-31 10:44:20 +0200'>2024-08-31</span></td><td><a href='/guix/commit/gnu/packages/imagemagick.scm?id=935470e13c35d0ab148bb0c063caaf06831ddd5d'>gnu: imagemagick/stable: Fix ungexp variable.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/imagemagick.scm (imagemagick/stable)
[arguments]: Ungexp reference to NAME variable.

Reported-by: Simon South &lt;simon@simonsouth.net&gt;
Change-Id: Id0584b35ede05ef14e957b2b2c9c754d9f9c0a90
</span></span></td><td>Maxim Cournoyer</td></tr>
<tr><td><span title='2024-08-31 10:44:19 +0200'>2024-08-31</span></td><td><a href='/guix/commit/gnu/packages/imagemagick.scm?id=9be6c34ce737a709ea2058f1af3d4f45654dbc56'>gnu: imagemagick/stable: Update to 6.9.12-4 and use gexps.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/imagemagick.scm (imagemagick/stable): Update to 6.9.12-4.
[arguments] Use gexps, strip trailing #t in phases.
[inputs]: Remove labels and sort.

Change-Id: I3c97868a663c44efedcea40a99af933cecb50549
</span></span></td><td>Maxim Cournoyer</td></tr>
<tr><td><span title='2024-08-31 10:44:19 +0200'>2024-08-31</span></td><td><a href='/guix/commit/gnu/packages/imagemagick.scm?id=fc1aa48eb73f5542f3260fa92c44594000a68915'>gnu: Fix imagemagick webp related failures.</a><span class='msg-avail'>...<span class='msg-tooltip'>This fixes #48018, as suggested by Saku Laesvuori on the issue tracker.

* gnu/packages/imagemagick.scm (imagemagick/stable)[inputs]: Add libwebp.

Change-Id: I3c02d0fb6c421f7d865b19af359e20068d00b60a
Signed-off-by: Maxim Cournoyer &lt;maxim.cournoyer@gmail.com&gt;
</span></span></td><td>Gabriel Wicki</td></tr>