https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git;a=commit;h=ffaef0be613121d3ee37867d82932a7a30c2bc6d

From: Heiko Becker <heirecka@exherbo.org>
Date: Thu, 3 Feb 2022 22:46:41 +0000
Subject: [PATCH] jitterentropy: Include <fcntl.h> and <limits.h>

* random/jitterentropy-base-user.h: Include <fcntl.h> for O_RDONLY
* random/jitterentropy-base-user.h: Include <limits.h> for LONG_MAX

--

Fixes the build with musl libc.

Signed-off-by: Heiko Becker <heirecka@exherbo.org>
--- a/random/jitterentropy-base-user.h
+++ b/random/jitterentropy-base-user.h
@@ -39,6 +39,9 @@
  * DAMAGE.
  */
 
+#include <fcntl.h>
+#include <limits.h>
+
 #ifndef GCRYPT_JITTERENTROPY_BASE_USER_H
 #define GCRYPT_JITTERENTROPY_BASE_USER_H