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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<tr><td><span title='2020-08-03 16:43:28 +0300'>2020-08-03</span></td><td><a href='/guix/commit/gnu/packages/easyrpg.scm?id=948b59dfd5caa8fe5fc0feb3300f12b37820e23f'>gnu: easyrpg-player: Update to 0.6.2.1.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/easyrpg.scm (easyrpg-player): Update to 0.6.2.1.
</span></span></td><td>Efraim Flashner</td></tr>
<tr><td><span title='2020-05-21 22:14:40 +0200'>2020-05-21</span></td><td><a href='/guix/commit/gnu/packages/easyrpg.scm?id=0b7fd225394623a2f2a10d0f422c462c673e3f8a'>gnu: liblcf: Update to 0.6.2.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/easyrpg.scm (liblcf): Update to 0.6.2.
</span></span></td><td>Tobias Geerinckx-Rice</td></tr>
<tr><td><span title='2020-01-19 06:09:02 +0100'>2020-01-19</span></td><td><a href='/guix/commit/gnu/packages/easyrpg.scm?id=ff289fe288765680b5ac489e95b9ae840f23b513'>gnu: liblcf, easyrpg: Update to 0.6.1.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/easyrpg.scm (liblcf, easyrpg): Update to 0.6.1.
</span></span></td><td>Tobias Geerinckx-Rice</td></tr>