Define the mount_attr struct ourselves since some toolchains don't ha…

…ve it yet

src/test/fsmount.c

@@ -3,9 +3,15 @@
 #include "nsutils.h"
 #include "util.h"
 
-#include <linux/mount.h>
 #include <sys/mount.h>
 
+struct rr_mount_attr {
+  uint64_t attr_set;
+  uint64_t attr_clr;
+  uint64_t propagation;
+  uint64_t userns_fd;
+};
+
 int main(void) {
   if (try_setup_ns(CLONE_NEWNS) < 0) {
     atomic_puts("EXIT-SUCCESS");
@@ -24,7 +30,7 @@ int main(void) {
   ret = syscall(RR_move_mount, mnt_fd, "", AT_FDCWD, "/tmp", MOVE_MOUNT_F_EMPTY_PATH);
   test_assert(ret == 0);
 
-  struct mount_attr attr;
+  struct rr_mount_attr attr;
   memset(&attr, 0, sizeof(attr));
   ret = syscall(RR_mount_setattr, mnt_fd, "", AT_EMPTY_PATH, &attr, sizeof(attr));
   test_assert(ret == 0);