This patch is required for xmonad to make use of shared libraries.
Without it, xmonad will not work since we do not (by default) use
statically linked Haskell libraries.

diff -ruN xmonad-0.15-a/src/XMonad/Core.hs xmonad-0.15-b/src/XMonad/Core.hs
--- xmonad-0.15-a/src/XMonad/Core.hs	1969-12-31 19:00:00.000000000 -0500
+++ xmonad-0.15-b/src/XMonad/Core.hs	1969-12-31 19:00:00.000000000 -0500
@@ -681,6 +681,8 @@
        compileGHC bin dir errHandle =
          runProcess "ghc" ["--make"
                           , "xmonad.hs"
+                          , "-dynamic"
+                          , "-fPIC"
                           , "-i"
                           , "-ilib"
                           , "-fforce-recomp"
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<div class='path'>path: <a href='/guix/log/?id=7693ee2dd09d3df4ccc8a62f14fed11b78d69980'>root</a>/<a href='/guix/log/tests?id=7693ee2dd09d3df4ccc8a62f14fed11b78d69980'>tests</a>/<a href='/guix/log/tests/records.scm?id=7693ee2dd09d3df4ccc8a62f14fed11b78d69980'>records.scm</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/records.scm?id=7693ee2dd09d3df4ccc8a62f14fed11b78d69980&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2022-07-01 12:10:29 +0200'>2022-07-01</span></td><td><a href='/guix/commit/tests/records.scm?id=741895676b124a8a9a6656a54b5b58fd35d8e0f9'>tests: Add sanitizer test.</a><span class='msg-avail'>...<span class='msg-tooltip'>* tests/records.scm ("define-record-type* &amp; sanitize without default
value"): New test.
</span></span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2021-08-12 12:34:13 +0200'>2021-08-12</span></td><td><a href='/guix/commit/tests/records.scm?id=5291fd7a4205394b863a8705b32fbb447321dc60'>records: Support field sanitizers.</a><span class='msg-avail'>...<span class='msg-tooltip'>* guix/records.scm (make-syntactic-constructor): Add #:sanitizers.
[field-sanitizer]: New procedure.
[wrap-field-value]: Honor F's sanitizer.
(define-record-type*)[field-sanitizer]: New procedure.
Pass #:sanitizer to 'make-syntactic-constructor'.
* tests/records.scm ("define-record-type* &amp; sanitize")
("define-record-type* &amp; sanitize &amp; thunked"): New tests.
</span></span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2021-04-29 01:22:04 +0200'>2021-04-29</span></td><td><a href='/guix/commit/tests/records.scm?id=524c9800afb433cc474132185d8e37f72004adb3'>diagnostics, ui: Adjust to 'read-error' and 'syntax-error' in Guile 3.0.6.</a><span class='msg-avail'>...<span class='msg-tooltip'>* guix/diagnostics.scm (source-properties-&gt;location): Add clause for
vectors.
* guix/ui.scm (report-load-error): Tweak 'read-error' handling for 3.0.6.
* tests/guix-package.sh: Relax regexp for the "unbound variable"
diagnostic check.
* tests/guix-system.sh: Adjust "missing closing paren" check for 3.0.6.
* tests/records.scm (location-alist): New procedure.
("define-record-type* &amp; wrong field specifier")
("define-record-type* &amp; wrong field specifier, identifier")
("define-record-type* &amp; duplicate initializers"): Use it.
</span></span></td><td>Ludovic Courtès</td></tr>