On 2019-09-30 12:37 -0500, Bruce Dubbs via blfs-dev wrote:
> On 9/30/19 12:25 PM, Xi Ruoyao via blfs-dev wrote:
> > On 2019-09-30 19:22 +0200, Thomas Trepl via blfs-dev wrote:
> > > Hi all,
> > >
> > > so far i have built a nice Xfce system avoiding python2, gtk2 and
> > > rustc at all and Xfce-4.14 builds/runs fine without gtk2. For librsvg
> > > i use the old non-rust version 2.40.20 which still works pretty well -
> > > ok, i know, thats not really the way to go but building gigabytes of
> > > compiler stuff just for one lib?
> > >
> > > But now, for firefox it seems that there's no way around. All of
> > > browsers have downsides (epihani needs webkitgtk needs gtk2, falcon
> > > needs Python2, seamonkey needs gtk2, firefox needs rustc,gtk2). All i
> > > need is a good browser so unfortunatly i need to "die some kind of
> > > death".
> > >
> > > Well i started to fool around with rust and tried to package using the
> > > DESTDIR mechanism.
> > >
> > > In rusts config file the prefix is specified
> > >
> > > [install]
> > > prefix = "/opt/rustc-1.35.0"
> > >
> > > and according to the instructions we create that dir upfront. Since
> > > book also uses DESTDIR strategy I thought "ah, its easy, just put my
> > > DESTDIR there instead of $pwd/install" and left out the creation of
> > > the /opt/rustc-1.35.0 out because i do not install in "real"
> > > locations.
> > >
> > > Badly enough, install failed with an error message like "/opt/rustc-
> > > 1.35.0 cannot be canonicalized" or such.
> > >
> > > After a few re-runs of building rustc (much fun it is to wait and do
> > > it again because of a typo in the build script...) I ended up with
> > > creating the $prefix dir on the build machine even DESTDIR install
> > > puts the files somewhere else.
> > > Looking at Arch's instructions, they do pretty much same but their
> > > $prefix is "/usr" which obviously already exists on building machine.
> > >
> > > Have you ever tried to install rust via DESTDIR and if yes, did you
> > > see same issue and if yes, how did you work around?
> >
> > Yes. I had to "mkdir /opt/rustc-{version}".
>
> Why not just use the instructions in the book?
>
> From the note in the book:
>
> "Unusually, a DESTDIR-style method is being used to install this
> package. This is because running the install as root not only downloads
> all of the cargo files again (to /root/.cargo), it then spends a very
> long time recompiling. Using this method saves a lot of time, at the
> cost of extra disk space."
>
>
> DESTDIR=${PWD}/install python3 ./x.py install
The error message "/opt/rustc-1.35.0 cannot be canonicalized" shows up HERE,
before the "cp" command creating /opt/rustc-1.35.0.
> sudo chown -R root:root install
> sudo cp -a install/* /
--
Xi Ruoyao <[email protected]>
School of Aerospace Science and Technology, Xidian University
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