Makefile.am:16: but option 'subdir-objects' is disabled

[cryptozeny]

build is ok and everything works well and you can ignore this warning.

when i run ./autogen.sh. it reported by another user.

$ ./autogen.sh 
Makefile.am:16: warning: source file 'yespower/yespower.c' is in a subdirectory,
Makefile.am:16: but option 'subdir-objects' is disabled
automake: warning: possible forward-incompatibility.
automake: At least a source file is in a subdirectory, but the 'subdir-objects'
automake: automake option hasn't been enabled.  For now, the corresponding output
automake: object file(s) will be placed in the top-level directory.  However,
automake: this behaviour will change in future Automake versions: they will
automake: unconditionally cause object files to be placed in the same subdirectory
automake: of the corresponding sources.
automake: You are advised to start using 'subdir-objects' option throughout your
automake: project, to avoid future incompatibilities.
Makefile.am:16: warning: source file 'yespower/sha256.c' is in a subdirectory,
Makefile.am:16: but option 'subdir-objects' is disabled

there are 2 options to fix

• a) adding subdir-objects to configure.ac like this

AM_INIT_AUTOMAKE([gnu subdir-objects])

• b) adding AUTOMAKE_OPTIONS = subdir-objects to Makefile.am

AUTOMAKE_OPTIONS = subdir-objects

but i don't like these because these methods modifies too many other files ie: S and S.orig.

any advise?

[cryptozeny]

@macchky @bitzeny sorry to bother you, but i hope you have some idea about this 😅

[MohamedFathallah9]

what does those 2 options do? I'm having the same problem after using autoreconf -i
I want to know how does these messages impact my work please