Re: bug ? ./configure in bash.git.devel ran twice

[Dominique Martinet]

Alex fxmbsw7 Ratchev wrote on Sun, Oct 10, 2021 at 02:07:34AM +0200:
> i cloned, modded config top to coprocs 1 and ran ./configure, that finished
> then i ran make -j 8 but it ran configure on cd <something> && autoconf
> first make output line, then it gcc ed it
> i dunno i report cause i see unusual behavior of that configure ran twiced

'make' checks that configure is more recent than the files that generate
it (configure.ac, aclocal.m4 and config.h.in) and regenerates it if not:

$(srcdir)/configure:    $(srcdir)/configure.ac $(srcdir)/aclocal.m4 
$(srcdir)/config.h.in
        cd $(srcdir) && autoconf

(this is standards autotools stuff)

When you extract the sources from a tarball, tar will restore the mtimes
in the archive so configure will be more recent and autoconf will not
rerun, but git does not care about individual files timestamps so
autoconf will likely be needed when cloning from git or when updating
the files.

-- 
Dominique Martinet | Asmadeus