5 ms·

distcc can be useful, but requires that the local build environment matches the remote 100%.

by pstrateman 7y ago

spork12 7y ago
That is not true
IcePic 7y ago
No it doesn't, it sends preprocessed files just to not depend on remote env.
- cat199 7y ago
  > it sends preprocessed files just to not depend on remote env. to then be compiled by the host compiler ..
  - IcePic 7y ago
    Sure, one compiler can't be egcs 2.95 and the other clang 8 (at least not in most cases) but the target compiler system doesn't even have to have include files, libs, libfoo-devel packages installed or they can be, but from old versions. As a proof of concept I once had a linux with gcc4.2.1 make c->.o files that later ran on OpenBSD. Would I trust that resulting binary? Sure not. But in cases of "lets spin up 10 compile boxes with <same ubuntu within a week of updating>" or have something along the lines of Xcode which allowed you and your colleagues to help out each other with small work units in order to make a single compile run quite much faster, that is a definite possibility. For that final release build, you might consider running it on one of those 10 VMs in the example above and have 'only' 9 others help out with the sub-parts in order to get some kind of .. guarantee. If it takes a minute for a full build on one box, getting a hint after 10 seconds that you misspelled something and that it won't ever link decently is worth something too if you value your time as a developer. Not saying it's perfect, only chipped in on the "must be 100% or it can't ever work", hopefully without needing to go into the "coach says we need to give 110% this game, and 120% if it's the finals" nitpicking.
    - boring_twenties 7y ago
      This doesn't work for C++, as there is no standard ABI and thus no safe way to link object files from different compiler versions into the same binary.
bgmeister 7y ago
Icecc (an old distcc fork) also distributes the toolchain, to avoid that particular problem. https://github.com/icecc/icecream https://github.com/icecc/icecream

distcc can be useful, but requires that the local build environment matches the remote 100%.

spork12 7y ago

That is not true

IcePic 7y ago

No it doesn't, it sends preprocessed files just to not depend on remote env.

cat199 7y ago
> it sends preprocessed files just to not depend on remote env. to then be compiled by the host compiler ..
- IcePic 7y ago
  Sure, one compiler can't be egcs 2.95 and the other clang 8 (at least not in most cases) but the target compiler system doesn't even have to have include files, libs, libfoo-devel packages installed or they can be, but from old versions. As a proof of concept I once had a linux with gcc4.2.1 make c->.o files that later ran on OpenBSD. Would I trust that resulting binary? Sure not. But in cases of "lets spin up 10 compile boxes with <same ubuntu within a week of updating>" or have something along the lines of Xcode which allowed you and your colleagues to help out each other with small work units in order to make a single compile run quite much faster, that is a definite possibility. For that final release build, you might consider running it on one of those 10 VMs in the example above and have 'only' 9 others help out with the sub-parts in order to get some kind of .. guarantee. If it takes a minute for a full build on one box, getting a hint after 10 seconds that you misspelled something and that it won't ever link decently is worth something too if you value your time as a developer. Not saying it's perfect, only chipped in on the "must be 100% or it can't ever work", hopefully without needing to go into the "coach says we need to give 110% this game, and 120% if it's the finals" nitpicking.
  - boring_twenties 7y ago
    This doesn't work for C++, as there is no standard ABI and thus no safe way to link object files from different compiler versions into the same binary.

bgmeister 7y ago

Icecc (an old distcc fork) also distributes the toolchain, to avoid that particular problem. https://github.com/icecc/icecream https://github.com/icecc/icecream