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
sudo chown -R root:root install
sudo cp -a install/* /
Will automatically create /opt/rustc-1.35.0
-- Bruce
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