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Re: parallel build issues
From: |
Nick Bowler |
Subject: |
Re: parallel build issues |
Date: |
Mon, 21 Jun 2021 14:04:38 -0400 |
On 2021-06-21, Werner LEMBERG <wl@gnu.org> wrote:
> I have a `Makefile.am` in a `frontend` subdirectory that looks like
> the following (abridged).
[...]
> Running the generated `Makefile` with `make -j12`, I get this:
>
> ...
> Making all in frontend
> make[2]: Entering directory '.../frontend'
> ...
> make all-am
> make[3]: Entering directory '.../frontend'
> CXX info.o
> CXX main.o
> CXX ttfautohintGUI-ddlineedit.o
> CXX ttfautohintGUI-info.o
> CXX ttfautohintGUI-main.o
> CXX ttfautohintGUI-maingui.o
> CXX ttfautohintGUI-ttlineedit.o
> make ttfautohint
> CXX ttfautohintGUI-ddlineedit.moc.o
> CXX ttfautohintGUI-maingui.moc.o
> CXX ttfautohintGUI-static-plugins.o
> CXX ttfautohintGUI-ttlineedit.moc.o
> make[4]: Entering directory '.../frontend'
Here one of your make rules has started a recursive build in the
"frontend" directory.
> CXX info.o
> make ttfautohintGUI
> make[4]: Entering directory '.../frontend'
Here *another* one of your make rules has *also* started a recursive
build in "frontend", concurrently with the one that was started
previously.
> CXXLD ttfautohintGUI
> CXX main.o
> mv: cannot stat '.deps/info.Tpo': No such file or directory
Those independent make invocations are simultaneously running the same
compilation rules and have no knowledge of what the other make processes
are doing. Failure is the inevitable outcome.
> make[4]: *** [Makefile:1401: info.o] Error 1
> make[4]: *** Waiting for unfinished jobs....
> CXXLD ttfautohint
> make[4]: Leaving directory '.../frontend'
> ...
>
> What am I doing wrong? I would be glad for any pointers.
The problem is not related to the snippet you posted. The concurrent
recursive make invocations are being spawned from somewhere else in
your build system.
Hope that helps,
Nick
- parallel build issues, Werner LEMBERG, 2021/06/21
- Re: parallel build issues, Warren Young, 2021/06/21
- Re: parallel build issues,
Nick Bowler <=
- Re: parallel build issues, Werner LEMBERG, 2021/06/21
- Re: parallel build issues, Werner LEMBERG, 2021/06/21
- Re: parallel build issues, Nick Bowler, 2021/06/21
- Re: parallel build issues, Werner LEMBERG, 2021/06/21
- Re: parallel build issues, Bob Friesenhahn, 2021/06/21
- Re: parallel build issues, Jacob Bachmeyer, 2021/06/23