backupfile and backup-replace are introducing the same object to make

[(GalaxyMaster)]

Hello,

[I am not a subscriber, so if you need anything from me, please CC me]

I just stumbled upon the following: when I include both backupfile and
backup-replace modules I am getting a broken build due to multiple definitions
of "simple_backup_suffix'.

When I compared modules, sure enough I found the issue:
===
--- backupfile  2023-01-23 03:29:03.000000000 +1100
+++ backup-rename       2023-01-23 03:29:03.000000000 +1100
[...]
 Makefile.am:
-lib_SOURCES += backupfile.c backup-find.c
+lib_SOURCES += backupfile.c backup-rename.c
[...]
===

I could not find any information on whether these modules are mutually
exclusive or inter-dependent, but the fact is that you cannot have them both
in your project unless one of them drops "backupfile.c" from the "lib_SOURCES"
list.

-- 
(GM)