GNU bug report logs - #12064
distclean failure with Automake 1.12.2

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Peter Johansson <trojkan <at> gmail.com>
To: bug-automake <at> gnu.org
Subject: distclean failure with Automake 1.12.2
Date: Fri, 27 Jul 2012 12:12:30 +1000

Hi automakers,

I was about to make a release when I discovered that distcheck suddenly 
didn't work anymore. The distclean rule failed with

Making distclean in doc
make[2]: Entering directory `/home/peterJo/projects/software/yat-0.8.x/yat-0.8.2/_build/doc'
Makefile:498: ../yat/classifier/doxygen.mk: No such file or directory
Makefile:499: ../yat/normalizer/doxygen.mk: No such file or directory

This was for a stable branch release so there had just been minor 
changes in two .cc files and no changes at all wrt the build system. 
After some investigation I found that Automake 1.12.2 has changed the 
order directories are traversed for clean rules. I must say I find it 
unexpected that behaviour like this is changed between 1.12.1 and 
1.12.2. I thought this kind of changes were only introduced when bumping 
versions from say 1.11 to 1.12 and not between stable releases.

The reason I got the failure is that files doxygen.mk are included into 
doc/Makefile. These files are generated in the corresponding Makefile 
and listed under DISTCLEANFILES so they are deleted during 'make 
distclean'. As SUBDIRS in top Makefile.am is SUBDIRS = doc yat that was 
not a problem before since doc was entered first during cleaning and 
doc/Makefile was already gone when the doxygen.mk files were removed. 
Perhaps a strange use case, but still I wanted to report it.

I think I've found a workaround so I can get out the release without 
needing to downgrade Automake.

Thanks,
Peter

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