Re: [PATCH 1/3] um: fix parallel building with O= option

From: Kees Cook
Date: Sat Sep 15 2018 - 14:47:15 EST


On Fri, Aug 3, 2018 at 9:47 PM, Masahiro Yamada
<yamada.masahiro@xxxxxxxxxxxxx> wrote:
> Randy Dunlap reports UML occasionally fails to build with -j<N> and
> O=<builddir> options.

With v4.19-rc2 I'm still seeing a failure (for any parallelism) under ARCH=um

$ make -j8 ARCH=um O=/tmp/foo
...
/home/kees/src/linux-build/um/Makefile:1185: *** Headers not
exportable for the um architecture. Stop.

Am I missing something?

-Kees

--
Kees Cook
Pixel Security