Hi Dave, yes, i did experience this exact behaviour.
"by accident" meant i ran autogen.pl with the required autotools versions. then, i ran configure and make with the RHEL6 stock autotools (that are too old for OMPI) configure worked just fine, but make crashed because of outdated autotools if i ran make with the latest autotools, i would probably have not noticed the issue. note the issue occurs only when make is invoked for the first time. if make success, autoheader does touch mpif.h.in, so the next make do not require autotools. if i read between the lines, it seems autoheader is not (correctly) invoked by autogen.pl please let me know if you cannot reproduce this issue. (and once again, this is a very minor annoyance, and since tarballs are generated with make dist, tarballs are very likely unaffected, so bottom line, only developers that update m4 files can be affected) Cheers, Gilles On Tue, Dec 23, 2014 at 2:26 AM, Dave Goodell (dgoodell) <dgood...@cisco.com > wrote: > On Dec 22, 2014, at 2:42 AM, Gilles Gouaillardet < > gilles.gouaillar...@iferc.org> wrote: > > > Jeff and all, > > > > i just found "by accident" that make can require autotools. > > > > for example: > > > > from (generated) ompi/include/Makefile : > > $(srcdir)/mpi.h.in: $(am__configure_deps) > > ($(am__cd) $(top_srcdir) && $(AUTOHEADER)) > > rm -f stamp-h2 > > touch $@ > > > > and $(am__configure_deps) is a bunch (all?) of .m4 files. > > > > from a pragmatic point of view, it means that if update a m4 file, run > > autogen.pl and configure, > > then, the first invokation of make will run $(AUTOHEADER) > > Gilles, > > Have you actually experienced this exact behavior? The sequence you > mention above shouldn't cause autoheader to be invoked by make. Running > autogen.pl will invoke autoheader after the m4 files were touched, so the > mpi.h.in file will be newer than its m4 dependencies, which should mean > that this make rule won't be executed. > > -Dave > > _______________________________________________ > devel mailing list > de...@open-mpi.org > Subscription: http://www.open-mpi.org/mailman/listinfo.cgi/devel > Link to this post: > http://www.open-mpi.org/community/lists/devel/2014/12/16713.php >
