This patch is from Debian, named '0006-arm64.patch'

Author: Riku Voipio <riku.voipio@linaro.org>
Description: fuse_kernel.h: clean includes
 Use <linux/types.h> for linux and define types used for other operating systems
 using <stdint.h> types (Closes: #752081).

diff -Naurp fuse.orig/include/fuse_kernel.h fuse/include/fuse_kernel.h
--- fuse.orig/include/fuse_kernel.h
+++ fuse/include/fuse_kernel.h
@@ -88,12 +88,16 @@
 #ifndef _LINUX_FUSE_H
 #define _LINUX_FUSE_H
 
-#include <sys/types.h>
+#ifdef __linux__
+#include <linux/types.h>
+#else
+#include <stdint.h>
 #define __u64 uint64_t
 #define __s64 int64_t
 #define __u32 uint32_t
 #define __s32 int32_t
 #define __u16 uint16_t
+#endif
 
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<div class='path'>path: <a href='/guix/log/?id=c0a5cd1be3fce740c634596959321a76f22623a9'>root</a>/<a href='/guix/log/gnu?id=c0a5cd1be3fce740c634596959321a76f22623a9'>gnu</a>/<a href='/guix/log/gnu/packages?id=c0a5cd1be3fce740c634596959321a76f22623a9'>packages</a>/<a href='/guix/log/gnu/packages/sync.scm?id=c0a5cd1be3fce740c634596959321a76f22623a9'>sync.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/gnu/packages/sync.scm?id=c0a5cd1be3fce740c634596959321a76f22623a9&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2020-02-01 16:05:31 +0100'>2020-02-01</span></td><td><a href='/guix/commit/gnu/packages/sync.scm?id=ab7011f885f3a8db3879028631c2272ad33f25bb'>gnu: rclone: Update to 1.51.0.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/sync.scm (rclone): Update to 1.51.0.
</span></span></td><td>Nicolas Goaziou</td></tr>
<tr><td><span title='2020-01-24 21:30:58 +0000'>2020-01-24</span></td><td><a href='/guix/commit/gnu/packages/sync.scm?id=3e67182fb1b928a695718441124bec14a86ec7be'>gnu: Add megatools.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/sync.scm (megatools): New variable.
(megacmd)[description]: Cross-reference the two packages in the description.

Signed-off-by: Christopher Baines &lt;mail@cbaines.net&gt;
</span></span></td><td>Jakub Kądziołka</td></tr>
<tr><td><span title='2020-01-24 21:30:58 +0000'>2020-01-24</span></td><td><a href='/guix/commit/gnu/packages/sync.scm?id=1b0290255399cdd695a4a669d886036654bf3a57'>gnu: Add megacmd.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/sync.scm (megacmd): New variable.

Signed-off-by: Christopher Baines &lt;mail@cbaines.net&gt;
</span></span></td><td>Jakub Kądziołka</td></tr>
<tr><td><span title='2019-11-29 15:04:47 +0100'>2019-11-29</span></td><td><a href='/guix/commit/gnu/packages/sync.scm?id=809b39635fca8081cf8330a5800bed59b6ce16e2'>gnu: rclone: Update to 1.50.2.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/sync.scm (rclone): Update to 1.50.2.
</span></span></td><td>Clément Lassieur</td></tr>
<tr><td><span title='2019-11-05 22:45:58 +0100'>2019-11-05</span></td><td><a href='/guix/commit/gnu/packages/sync.scm?id=5b7a06ca0d54265482dfc34f0bdadd35d5b5a1a6'>gnu: rclone: Update to 1.50.1.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/sync.scm (rclone): Update to 1.50.1.
</span></span></td><td>Tobias Geerinckx-Rice</td></tr>
<tr><td><span title='2019-11-01 11:54:18 +0100'>2019-11-01</span></td><td><a href='/guix/commit/gnu/packages/sync.scm?id=51d602a5c17ff901136b84765d49678ea12fbab3'>gnu: rclone: Update to 1.50.0.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/sync.scm (rclone): Update to 1.50.0.
</span></span></td><td>Nicolas Goaziou</td></tr>
<tr><td><span title='2019-10-03 01:09:32 +0200'>2019-10-03</span></td><td><a href='/guix/commit/gnu/packages/sync.scm?id=2b2f7e5d8cd154c8bbf8d531d2edd6801956d36d'>gnu: rclone: Update to 1.49.4.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/sync.scm (rclone): Update to 1.49.4.
</span></span></td><td>Nicolas Goaziou</td></tr>
<tr><td><span title='2019-09-20 17:15:38 +0200'>2019-09-20</span></td><td><a href='/guix/commit/gnu/packages/sync.scm?id=30c6088e5ae87b283589fab250ad91fb8a09ff52'>gnu: rclone: Update to 1.49.3.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/sync.scm (rclone): Update to 1.49.3.
</span></span></td><td>Tobias Geerinckx-Rice</td></tr>