Re: [ptxdist] [ANNOUNCE] OSELAS.Toolchain() 2018.02.0 released - host-m4 build error on Ubuntu 18.10

[Roland Hieber <rhi@pengutronix.de>]

On Fri, Jan 18, 2019 at 11:34:22AM +0100, Michael Olbrich wrote:
> On Fri, Jan 18, 2019 at 10:07:45AM +0100, Roland Hieber wrote:
> > On Sat, Sep 29, 2018 at 05:57:53PM +0200, Andreas Pretzsch wrote:
> > > During build of the toolchain (at least in configs arm-v7a-linux-
> > > gnueabihf, arm-v7m-eabi, arm-v7em-eabihf) on an Ubuntu 18.10-beta host,
> > > build stopped here with an host-m4 error:
> > > fseeko.c: In function 'rpl_fseeko':
> > > fseeko.c:110:4: error: #error "Please port gnulib fseeko.c to your platform! Look at the code in fseeko.c, then report this to bug-gnulib."
> > >    #error "Please port gnulib fseeko.c to your platform! Look at the code in fseeko.c, then report this to bug-gnulib."
> > >     ^~~~~
> > >   GEN      charset.alias
> > > make[4]: *** [Makefile:1910: fseeko.o] Error 1
> > > make[4]: *** Waiting for unfinished jobs....
> > >   CC       vasprintf.o
> > > freadahead.c: In function 'freadahead':
> > > freadahead.c:92:3: error: #error "Please port gnulib freadahead.c to your platform! Look at the definition of fflush, fread, ungetc on your system, then report this to bug-gnulib."
> > >   #error "Please port gnulib freadahead.c to your platform! Look at the definition of fflush, fread, ungetc on your system, then report this to bug-gnulib."
> > >    ^~~~~
> > > make[4]: *** [Makefile:1910: freadahead.o] Error 1
> > > 
> > > Reason is the glibc 2.28 on the build host (libc6:amd64 2.28-0ubuntu1).
> > > Same probably applies to other distributions.
> > > 
> > > In up-to-date ptxdist, there is a patch included fixing this issue:
> > > commit cba1e28 "m4/coreutil: add gnulib patches for GLibc-2.28" from
> > > Rouven Czerwinski, dating 2018-08-23.
> > > With this, m4 is patched accordingly, and build succeeds.
> > > 
> > > The OSELAS.Toolchain-2018.02.0 ptxdist project refers to ptxdist-
> > > 2018.02.0 by default. Above patch is part of ptxdist-2018.09.0.
> > > 
> > > So until there is a revised version of OSELAS.Toolchain, either use
> > > ptxdist-2018.09.0 or later for building, or include the patch in the
> > > toolchain project.
> 
> Did you try building the toolchain with ptxdist-2018.09.0 (with -f)? Does
> it work?
> 
> > > @ PTX: This might be worth mentioning in the building instructions or
> > > at a similar place.
> 
> Hmm, we don't really have a place to put version specific notes. And the
> generic build instructions are out of date too... :-/.
> 
> > mol, do you think it is feasible to release a 2018.02.1 toolchain with
> > the host-m4 (and probably other host-glibc related) patches?
> 
> Well, we could start fixing this in a stable branch. Any volunteers? :-)
> And maybe a source only release. That's easy. Building all the binary
> toolchains it what makes a release a lot of work.

The m4 patch [1] works for me, but I've also run into issues with building
gdb against Python 3.7 on Debian unstable:

    python/python.c: In function 'bool do_start_initialization()':
    python/python.c:1710:45: error: too few arguments to function 'int _PyImport_FixupBuiltin(PyObject*, const char*, PyObject*)'
       _PyImport_FixupBuiltin (gdb_module, "_gdb");
                                                 ^

There is a patch [2] available upstream, but this will break if the
build host uses python < 3.7. Which configurations do we want to target
for a stable branch?

[1]: https://git.pengutronix.de/cgit/rhi/OSELAS.Toolchain/commit/?h=rhi/for-stable/OSELAS.Toolchain-2018.02.x&id=15f8bd0a1a8c82fdc722793b429b47c31d85dbb4
[2]: https://sourceware.org/ml/gdb-patches/2018-05/msg00863.html

-- 
Roland Hieber                     | r.hieber@pengutronix.de     |
Pengutronix e.K.                  | https://www.pengutronix.de/ |
Peiner Str. 6-8, 31137 Hildesheim | Phone: +49-5121-206917-5086 |
Amtsgericht Hildesheim, HRA 2686  | Fax:   +49-5121-206917-5555 |

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