sys-fs/stratisd: fix build devicemapper-rs with musl libc

sys-fs/stratisd/files/0001-Fix-issue-of-devicemapper-rs-compatibility-with-musl.patch

@@ -0,0 +1,35 @@
+From 616fccece704b632427f9c8e1b7d2a4c8b7907d1 Mon Sep 17 00:00:00 2001
+From: John Baublitz <jbaublitz@redhat.com>
+Date: Thu, 9 Jul 2020 15:41:54 -0400
+Subject: [PATCH] Fix issue of devicemapper-rs compatibility with musl
+
+---
+ src/core/dm.rs | 5 ++---
+ 1 file changed, 2 insertions(+), 3 deletions(-)
+
+diff --git a/src/core/dm.rs b/src/core/dm.rs
+index fe598c6..3c6d925 100644
+--- a/src/core/dm.rs
++++ b/src/core/dm.rs
+@@ -4,7 +4,7 @@
+ 
+ use std::{cmp, fs::File, mem::size_of, os::unix::io::AsRawFd, slice, u32};
+ 
+-use nix::libc::{c_ulong, ioctl as nix_ioctl};
++use nix::libc::ioctl as nix_ioctl;
+ 
+ use crate::{
+     core::{
+@@ -136,8 +136,7 @@ impl DM {
+                 .as_mut()
+                 .expect("pointer to own structure v can not be NULL")
+         };
+-        let op =
+-            request_code_readwrite!(DM_IOCTL, ioctl, size_of::<dmi::Struct_dm_ioctl>()) as c_ulong;
++        let op = request_code_readwrite!(DM_IOCTL, ioctl, size_of::<dmi::Struct_dm_ioctl>());
+         loop {
+             if let Err(err) =
+                 unsafe { convert_ioctl_res!(nix_ioctl(self.file.as_raw_fd(), op, v.as_mut_ptr())) }
+-- 
+2.26.2
+