ecryptfs-utils: fix musl build

Signed-off-by: Armin Kuster <akuster808@gmail.com>

recipes-security/ecryptfs-utils/ecryptfs-utils_111.bb

@@ -16,6 +16,7 @@ SRC_URI = "\
     file://ecryptfs-utils-CVE-2016-6224.patch \
     file://0001-avoid-race-condition.patch \
     file://ecryptfs.service \
+    file://define_musl_sword_type.patch \
     "
 
 SRC_URI[md5sum] = "83513228984f671930752c3518cac6fd"

recipes-security/ecryptfs-utils/files/define_musl_sword_type.patch

@@ -0,0 +1,15 @@
+Index: ecryptfs-utils-111/src/utils/mount.ecryptfs_private.c
+===================================================================
+--- ecryptfs-utils-111.orig/src/utils/mount.ecryptfs_private.c
++++ ecryptfs-utils-111/src/utils/mount.ecryptfs_private.c
+@@ -45,6 +45,10 @@
+ #include <values.h>
+ #include "../include/ecryptfs.h"
+ 
++#ifndef __SWORD_TYPE
++typedef __typeof__( ((struct statfs *)0)->f_type )	__SWORD_TYPE;
++#endif
++
+ /* Perhaps a future version of this program will allow these to be configurable
+  * by the system administrator (or user?) at run time.  For now, these are set
+  * to reasonable values to reduce the burden of input validation.