On Mon, Aug 31, 2020 at 07:17:30PM +0100, Ken Moffat via blfs-dev wrote:
> On Mon, Aug 31, 2020 at 08:04:37AM -0500, Marty Jack via blfs-dev wrote:
> >
> >
> > On Mon, 31 Aug 2020 01:44:03 -0500 Ken Moffat via blfs-dev wrote:
> > > On Mon, Aug 31, 2020 at 06:48:47AM +0100, Ken Moffat via blfs-dev wrote:
> > >
> > > Changing the title ecause this is a separate issue.
> > > >
> > > > Oh - tried updating libreoffice on another machine: with the skia
> > > > code it defaults to using clang (and my CFLAGS, CXXFLAGS have
> > > > -fstack-clash-protection which clang-10 does not understand).
> > > >
> > > > ĸen
> > >
> > > Nope, it still uses clang, which eventually fails:
> > >
> > > clang-10: error: unknown argument: '-fstack-clash-protection'
> > > clang-10: error: unsupported argument '8' to option 'flto='
> > >
> > > I'm guessing clang generated flto=8 (an 8-thread machine) and got
> > > confused by the previous unsupproted switch.
> > >
> > > https://www.phoronix.com/scan.php?page=news_item&px=LibreOffice-7.0-Prefers-Clang
> > >
> > > Oddly, Arch (libreoffice-fresh) do not seem to list clang or even
> > > llvm as deps.
> > >
> > > Fedora are using --disable-skia which might work around this. I'll
> > > try that for my own builds, which are a bt less than the book (e,g, no
> > > java) but I think we'll need to make clang required in the book.
> > >
[...]
> >
> > I build libreoffice 7 with gcc and without clang, which I do not have
> > installed. I also do not have skia installed.
> > It generates
> >
> > checking whether to build Skia... yes
> > checking for clang... no
> > configure: WARNING: Clang compiler not found.
> >
> > Takes about an hour on my i5-8600 for make build-nocheck.
> > Clearly they may change this in future but this suggests that clang need
> > not be required by the book.
>
> Hmm. Technically it is 'Recommended'. All my systems do have clang
> and I don'y have a log from the failed build, all I know for certain
> is that it tried to use clang when building skia, and failed because
> clang does not (in current release) support my flags.
>
> I'm guessing that your log can be interpreted as
> should I build skia : yes (default)
> do you have clang : no
> ok, cannot build skia, issue a warning.
>
I've just done a fresh build (omitting e.g. java, openldap, gssapi,
krb5 which I have not installed) and using make V=1. Unfortunately,
that no-longer gives a verbose build so I'm none the wiser about
what actually got compiled.
If anyone knows how to get libreoffice-7 (or late 6) to show the
commands it is running, please speak up!
Meanwhile, I've just started a build after hiding all the clang*
files in /usr/bin. Not sure it will show anything. Unfortunately,
there seems to be a reluctance in some build systems (e.g. typical
python modules) to provide real verbose output.
ĸen
--
Juliet's version of cleanliness was next to godliness, which was to
say it was erratic, past all understanding and was seldom seen.
-- Unseen Academicals
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