---
 configure.ac |    2 +-
 src/fuser.c  |    5 ++++-
 2 files changed, 5 insertions(+), 2 deletions(-)

--- configure.ac
+++ configure.ac	2022-12-13 07:57:11.751636898 +0000
@@ -162,7 +162,7 @@ AC_CHECK_MEMBERS([struct user_regs_struc
 		struct user_regs_struct.rdi,
 		struct user_regs_struct.rsi,
 		struct user_regs_struct.rdx], [],[],
-    [#include <bits/types.h>
+    [#include <sys/types.h>
      #include <sys/user.h>])
 AC_CHECK_MEMBERS([struct pt_regs.orig_gpr3,
 		struct pt_regs.gpr], [],[], [#include <linux/ptrace.h>])
--- src/fuser.c
+++ src/fuser.c	2022-12-13 07:59:50.896670010 +0000
@@ -1223,6 +1223,7 @@ int main(int argc, char *argv[])
     struct option *optr;
     char *nsptr;
     int skip_argv;
+    int seen_file;
 
     struct option options[] = {
         {"all", 0, NULL, 'a'},
@@ -1266,6 +1267,7 @@ int main(int argc, char *argv[])
 #endif
     atexit(atexit_free_lists);
 
+    seen_file = 0;
     for (argc_cnt = 1; argc_cnt < argc; argc_cnt++)
     {
         current_argv = argv[argc_cnt];
@@ -1416,6 +1418,7 @@ int main(int argc, char *argv[])
             }
         }
         this_name->matched_procs = NULL;
+        seen_file = 1;
         if (opts & (OPT_MOUNTS | OPT_ISMOUNTPOINT)
             && this_name->name_space != NAMESPACE_FILE)
         {
@@ -1467,7 +1470,7 @@ int main(int argc, char *argv[])
             names_tail->next = this_name;
         names_tail = this_name;
     }            /* for across the argvs */
-    if (names_head == NULL)
+    if (names_head == NULL && !seen_file)
         usage(_("No process specification given"));
 
     /* Check if -M flag was used and if so check mounts */