Prep v228: Substitute declaration masks (1/4)

Although it looks very ugly, substitute all declaration masks of the
form:

  // UNNEEDED type foo(...);

with:

  /// UNNEEDED by elogind
  #if 0
  type foo(...);
  #endif // 0

to make future merging of upstream pathes easier, as the relevant
lines themselves are not changed any more.

1 files changed, 14 insertions, 8 deletions

diff --git a/src/basic/copy.h b/src/basic/copy.h
index f5d8a1dd8..2cc7ad146 100644
--- a/src/basic/copy.h
+++ b/src/basic/copy.h
@@ -25,12 +25,18 @@
 #include <stdbool.h>
 #include <sys/types.h>
 
-// UNNEEDED int copy_file_fd(const char *from, int to, bool try_reflink);
-// UNNEEDED int copy_file(const char *from, const char *to, int flags, mode_t mode, unsigned chattr_flags);
-// UNNEEDED int copy_file_atomic(const char *from, const char *to, mode_t mode, bool replace, unsigned chattr_flags);
-// UNNEEDED int copy_tree(const char *from, const char *to, bool merge);
-// UNNEEDED int copy_tree_at(int fdf, const char *from, int fdt, const char *to, bool merge);
-// UNNEEDED int copy_directory_fd(int dirfd, const char *to, bool merge);
+/// UNNEEDED by elogind
+#if 0
+int copy_file_fd(const char *from, int to, bool try_reflink);
+int copy_file(const char *from, const char *to, int flags, mode_t mode, unsigned chattr_flags);
+int copy_file_atomic(const char *from, const char *to, mode_t mode, bool replace, unsigned chattr_flags);
+int copy_tree(const char *from, const char *to, bool merge);
+int copy_tree_at(int fdf, const char *from, int fdt, const char *to, bool merge);
+int copy_directory_fd(int dirfd, const char *to, bool merge);
+#endif // 0
 int copy_bytes(int fdf, int fdt, uint64_t max_bytes, bool try_reflink);
-// UNNEEDED int copy_times(int fdf, int fdt);
-// UNNEEDED int copy_xattr(int fdf, int fdt);
+/// UNNEEDED by elogind
+#if 0
+int copy_times(int fdf, int fdt);
+int copy_xattr(int fdf, int fdt);
+#endif // 0