[Bug 1703477] Review Request: recorder: A lock-free, real-time flight recorder for C or C++ programs

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https://bugzilla.redhat.com/show_bug.cgi?id=1703477



--- Comment #5 from Christophe de Dinechin <dinechin@xxxxxxxxxx> ---
(In reply to Elliott Sales de Andrade from comment #4)
> (In reply to Christophe de Dinechin from comment #2)
> > (In reply to Elliott Sales de Andrade from comment #1)
> > > - You don't need Requires:qt5-qtcharts as the executable is linked
> > >   with the library and will have automatic dependency on it.
> > 
> > OK. Is it harmful? I see it as useful documentation. Left it for now.
> >
> 
> As you can see from the Requires list, you'll have
> libQt5Charts.so.5()(64bit) and libQt5Charts.so.5(Qt_5)(64bit) already, which
> contain more information than the package name. Also, it seems that you
> removed it anyway?

Yes. I took the general approach that since I'm new here, I would just follow
directions ;-)


> > > - The makefile is not verbose, so I cannot verify if the required flags are
> > >   being used from the log.
> > 
> > Made build verbose so that you can check.
> > (For information, a verbose build log is produced by the make-it-quick build
> > system under .logs/make.log)
> > 
> > This comment caught my attention, and I made additional modifications to
> > make sure
> > the "hardeing" CFLAGS were correctly captured, basically adding a "fake"
> > %configure step
> > that is only used to capture these flags.
> > 
> > > [!]: %build honors applicable compiler flags or justifies otherwise.
> > 
> > Of note: I may be mistaken, but my experiments tend to demonstrate that the
> > interesting flags (hardening) are only setup if you run %configure. As
> > written
> > above, %configure step added with "fake" configure script for that purpose.
> > Let me know if there is a better way.
> > 
> 
> If make-it-quick is looking for CFLAGS, etc., then you might want to use
> %set_build_flags instead of %configure. Though you should make sure that the
> relevant command-line arguments that %configure passes are applied. Probably
> most of them are not useful if you don't install anything to all those
> directories.

I used the configure template from make-it-quick that plays exactly that role.
It seems a better way to pass libdir, etc than passing it directly to make
(though I still have to pass it to qmake, but that's a different build system)

> 
> > 
> > > - Don't use %{__install} macros (also the cd is kind of unneeded).
> > 
> > Done. Would you be kind enough to share the rationale? (I'm sort of new to
> > Fedora packaging)
> > 
> 
> They're simply unrequired and obfuscate the spec unnecessarily.
> https://docs.fedoraproject.org/en-US/packaging-guidelines/#_macros

I see. Thanks for the link. I believe you refer to the fact that
"install" would be shorter than %{__install}.

That prompted me to go the extra mile and add a proper `make install`
for the qt part. It's cleaner that way anyway, so thanks for pointing it out
:-)

> 
> > > - ldconfig post(un) scriptlets are no longer necessary.
> > 
> > Removed.
> > 
> > Do you think this is also true on other distros (trying to make sure my
> > .spec is reasonably reusable).
> 
> I wouldn't know, sorry.

OK. Many packages have this in their .spec file. I'll address that when the
time comes.

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