1620133 - Lack of parallelism when running MIDL in accessible/interfaces/ia1

Status: RESOLVED FIXED

(Firefox Build System :: General, task, P3)

Description

[Mike Hommey [:glandium]]

There are two manual loops in accessible/interfaces/ia2/Makefile.in that make the MIDL calls serialized.

https://searchfox.org/mozilla-central/rev/c79c0d65a183d9d38676855f455a5c6a7f7dadd3/accessible/interfaces/ia2/Makefile.in#94-96,102-104

Maybe it's time to bite the bullet and try to move all the MIDL-related stuff out of Makefiles.

Comment 1

[Mike Hommey [:glandium]]

Attachment: Bug 1620133 - Allow generated file rules to run in parallel in a given directory.

Bug 1645986 solved the problem for most generated files by moving their
rules to the top-level, but we're going to add rules that will end up in
subdirectories, so we have to solve the same problem again, in the
subdirectories.

Comment 2

[Mike Hommey [:glandium]]

Attachment: Bug 1620133 - Move MIDL handling to moz.build.

The register rules are dropped at the same time because nothing
actually uses them.

Comment 3

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/3f6d140abf16
Allow generated file rules to run in parallel in a given directory. r=firefox-build-system-reviewers,rstewart
https://hg.mozilla.org/integration/autoland/rev/478edcb2dc6e
Move MIDL handling to moz.build. r=firefox-build-system-reviewers,rstewart

Comment 4

[Mike Hommey [:glandium]]

Interestingly, this doesn't move the needle at all on native Windows builds...

Comment 5

[Andreea Pavel [:apavel]]

https://hg.mozilla.org/mozilla-central/rev/3f6d140abf16
https://hg.mozilla.org/mozilla-central/rev/478edcb2dc6e