[Octave-bug-tracker] [bug #45578] build failure due to no dependency on libgnu

[Mike Miller]

Follow-up Comment #11, bug #45578 (project octave):

I pushed a minor fixup

http://hg.savannah.gnu.org/hgweb/octave/rev/d9643bc3792a

I may look again at the partial work to try to build libgnu as an include file
rather than a subdirectory make file.

This won't improve the build much over what we have now other than
"cleanliness".

The overall issue of dependencies on generated files, say a header file that
is built from a shell script, still remains.

However, I am able to do a full build of 'make dist' after doing some sneaky
things to build all of the $(BUILT_SOURCES) first. So this proves to me that,
if we were to have a way to add a dependency on $(BUILT_SOURCES), everything
else actually does build with the right dependencies now.

To be specific, the following does work for me:


make maintainer-clean ## just to start from a clean slate
../configure
printf 'asdf:\n\t$(MAKE) $(BUILT_SOURCES)\n-include Makefile\n' | make -f
/dev/stdin asdf
cd libgnu
printf 'asdf:\n\t$(MAKE) $(BUILT_SOURCES)\n-include Makefile\n' | make -f
/dev/stdin asdf
cd ..
make dist


Now the 'dist' target, which does not depend on 'all' or 'check' or
$(BUILT_SOURCES), builds successfully, including all of the things needed to
actually build and run Octave to generate the images for the docs.

After building 'dist' I can 'make all' and show that only a handful of files
are built that weren't needed for 'dist', including the *-tst files, the *.qm
files under libgui, and the .gdbinit files useful for ./run-octave -g.

However, beyond that hack, I don't know how to actually make every compilation
depend on $(BUILT_SOURCES), the automake manual talks about this and a few
different approaches, but it looks like we may be approaching the best we can
do.

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