build: avoid unused variable warnings on cygwin

* src/copy.c (clone_file, copy_attr_by_fd, copy_attr_by_name):
Mark up unused variables.
* src/remove.c (dirent_inode_sort_may_be_useful): Likewise.

diff --git a/src/copy.c b/src/copy.c
index 238764a3998efd2bd0d8b817b9b10d16bde6c4b1..5f84f7e43f97760f71362343b81f918e69454d88 100644 (file)
--- a/src/copy.c
+++ b/src/copy.c
@@ -149,6 +149,8 @@ clone_file (int dest_fd, int src_fd)
 # define BTRFS_IOC_CLONE _IOW (BTRFS_IOCTL_MAGIC, 9, int)
   return ioctl (dest_fd, BTRFS_IOC_CLONE, src_fd);
 #else
+  (void) dest_fd;
+  (void) src_fd;
   errno = ENOTSUP;
   return -1;
 #endif
@@ -251,15 +253,19 @@ copy_attr_by_name (char const *src_path, char const *dst_path,
 #else /* USE_XATTR */
 
 static bool
-copy_attr_by_fd (char const *src_path, int src_fd,
-                 char const *dst_path, int dst_fd, const struct cp_options *x)
+copy_attr_by_fd (char const *src_path ATTRIBUTE_UNUSED,
+                 int src_fd ATTRIBUTE_UNUSED,
+                 char const *dst_path ATTRIBUTE_UNUSED,
+                 int dst_fd ATTRIBUTE_UNUSED,
+                 const struct cp_options *x ATTRIBUTE_UNUSED)
 {
   return true;
 }
 
 static bool
-copy_attr_by_name (char const *src_path, char const *dst_path,
-                   const struct cp_options *x)
+copy_attr_by_name (char const *src_path ATTRIBUTE_UNUSED,
+                   char const *dst_path ATTRIBUTE_UNUSED,
+                   const struct cp_options *x ATTRIBUTE_UNUSED)
 {
   return true;
 }

diff --git a/src/remove.c b/src/remove.c
index 6c8613bfad290bc2b22ed43e8321784d92b7ed51..2c4a178a146fab31d7df0a5ab2bb717a9f4b9d0f 100644 (file)
--- a/src/remove.c
+++ b/src/remove.c
@@ -1311,7 +1311,10 @@ dirent_inode_sort_may_be_useful (int dir_fd)
     }
 }
 # else /* !HAVE_STRUCT_STATFS_F_TYPE */
-static bool dirent_inode_sort_may_be_useful (int dir_fd) { return true; }
+static bool dirent_inode_sort_may_be_useful (int dir_fd ATTRIBUTE_UNUSED)
+{
+  return true;
+}
 # endif /* !HAVE_STRUCT_STATFS_F_TYPE */
 #endif /* HAVE_STRUCT_DIRENT_D_TYPE */