[Bug libctf/29547] binutils-2.39: fails to build against cctools nm (no '-B' option support)

[slyich at gmail dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=29547

--- Comment #8 from Sergei Trofimovich <slyich at gmail dot com> ---
(In reply to Nick Alcock from comment #7)
> (Sorry for delay: post-conf collapse, UK bank holiday, massive change of
> monitor configuration meaning my displays were scattered all around the
> room for a day, etc)
> 
> On 14 Sep 2022, slyich at gmail dot com outgrape:
> 
> > checking for BSD- or MS-compatible name lister (nm)... =============
> > error:
> > /nix/store/kpc4vpii3zrnz53b87xvid0rxlqb66cc-cctools-binutils-darwin-949.0.1/bin/nm:
> > invalid argument -B
> > Usage:
> > /nix/store/kpc4vpii3zrnz53b87xvid0rxlqb66cc-cctools-binutils-darwin-949.0.1/bin/nm
> > [-agnopruUmxjlfAP[s segname sectname] [-] [-t format] [[-arch <arch_flag>] 
> > ...]
> > [file ...]
> > =============
> 
> Oh, multiple lines ending with a usage message, and with the last line
> citing the name of the running binary? OK, we can trigger on 'Usage: '
> then. (Ew. Still, most unlikely to be a word that appears on the last
> line of a legitimate run. This function *really* needs a proper rewrite...)
> 
> Try the branch now? (Tested locally as before, plus on mingw.)

Tried against commit f71e2751ed8db0f041f9e46487 "fixup! libtool.m4: adjust
kludge for ignoring syntax errors".

Seems to build binutils just fine! Detected `nm -p` command option.

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