See also [Arch] and [Gentoo] for similar patches in other distros.
[Arch] https://github.com/archlinux/svntogit-community/blob/packages/renpy/trunk/renpy-system-fribidi.patch
[Gentoo] https://gitweb.gentoo.org/repo/gentoo.git/tree/games-engines/renpy/files/renpy-7.3.5-use-system-fribidi.patch

Index: renpy-7.4.0-source/module/renpybidicore.c
===================================================================
--- renpy-7.4.0-source.orig/module/renpybidicore.c
+++ renpy-7.4.0-source/module/renpybidicore.c
@@ -1,9 +1,3 @@
 #include <Python.h>
-
-#ifdef RENPY_BUILD
 #include <fribidi.h>
-#else
-#include <fribidi-src/lib/fribidi.h>
-#endif
-
 #include <stdlib.h>

 #ifndef alloca
Index: renpy-7.4.0-source/module/setup.py
===================================================================
--- renpy-7.4.0-source.orig/module/setup.py
+++ renpy-7.4.0-source/module/setup.py
@@ -125,30 +125,13 @@ cython(
     sdl + [ png, 'z', 'm' ])

 FRIBIDI_SOURCES = """
-fribidi-src/lib/fribidi.c
-fribidi-src/lib/fribidi-arabic.c
-fribidi-src/lib/fribidi-bidi.c
-fribidi-src/lib/fribidi-bidi-types.c
-fribidi-src/lib/fribidi-deprecated.c
-fribidi-src/lib/fribidi-joining.c
-fribidi-src/lib/fribidi-joining-types.c
-fribidi-src/lib/fribidi-mem.c
-fribidi-src/lib/fribidi-mirroring.c
-fribidi-src/lib/fribidi-run.c
-fribidi-src/lib/fribidi-shape.c
 renpybidicore.c
 """.split()
 cython(
     "_renpybidi",
     FRIBIDI_SOURCES,
-    includes=[
-        BASE + "/fribidi-src/",
-        BASE + "/fribidi-src/lib/",
-        ],
-    define_macros=[
-        ("FRIBIDI_ENTRY", ""),
-        ("HAVE_CONFIG_H", "1"),
-        ])
+    includes=["/usr/include/fribidi"],
+    libs=["fribidi"])


 cython("_renpysteam", language="c++", compile_if=steam_sdk, libs=["steam_api"])
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<div class='path'>path: <a href='/guix/log/?id=d2ce2e0feefe3f1d7d400d9d825c0a11f5e395b6'>root</a>/<a href='/guix/log/tests?id=d2ce2e0feefe3f1d7d400d9d825c0a11f5e395b6'>tests</a>/<a href='/guix/log/tests/gremlin.scm?id=d2ce2e0feefe3f1d7d400d9d825c0a11f5e395b6'>gremlin.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/gremlin.scm?id=d2ce2e0feefe3f1d7d400d9d825c0a11f5e395b6&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2022-01-16 20:21:27 -0800'>2022-01-16</span></td><td><a href='/guix/commit/tests/gremlin.scm?id=24c3485bb3ffc05e687ef6513ac287b8d3048bab'>tests: Fix file-needed/recursive on aarch64-linux.</a><span class='msg-avail'>...</span></td><td>Pierre Langlois</td></tr>
<tr><td><span title='2022-01-14 22:39:24 +0100'>2022-01-14</span></td><td><a href='/guix/commit/tests/gremlin.scm?id=e7ad192de008a6a21638def6eb973b9cc0c91116'>gremlin: Adjust tests for i686 and beyond.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2022-01-08 15:51:22 -0800'>2022-01-08</span></td><td><a href='/guix/commit/tests/gremlin.scm?id=6a2050b1e1c7f09ef9b6af43044b7c0e4786d39d'>tests: Fix file-needed/recursive on powerpc64le-linux.</a><span class='msg-avail'>...</span></td><td>Chris Marusich</td></tr>
<tr><td><span title='2021-06-23 20:30:22 -0700'>2021-06-23</span></td><td><a href='/guix/commit/tests/gremlin.scm?id=e4b5a23841bc6a92e2e21dd8b1038addee55eb02'>tests: gremlin: Skip file-needed/recursive if DT_NEEDED is empty.</a><span class='msg-avail'>...</span></td><td>Chris Marusich</td></tr>
<tr><td><span title='2021-04-22 14:04:27 +0200'>2021-04-22</span></td><td><a href='/guix/commit/tests/gremlin.scm?id=1010171280cb34c8dc361644b66fdd1a041d297a'>gremlin: 'elf-dynamic-info' returns a file name rathern than a dynamic entry.</a><span class='msg-avail'>...</span></td><td>Dion Mendel</td></tr>
<tr><td><span title='2020-12-01 21:30:28 +0100'>2020-12-01</span></td><td><a href='/guix/commit/tests/gremlin.scm?id=53fd256e5ba43e516fb9d6eaf085b88fe8bd12b6'>gremlin: Add 'file-needed/recursive'.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2020-09-19 17:28:46 +0200'>2020-09-19</span></td><td><a href='/guix/commit/tests/gremlin.scm?id=49a1203d67a90a6a7ce4e4537697a6da96ceb213'>gremlin: Add 'set-file-runpath', 'file-runpath', and 'file-needed'.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2019-05-18 12:10:15 +0200'>2019-05-18</span></td><td><a href='/guix/commit/tests/gremlin.scm?id=6b97415996583b15a97dad8254f610275353e913'>gremlin: Adjust tests for foreign distros.</a><span class='msg-avail'>...</span></td><td>Ting-Wei Lan</td></tr>