ubuntu-x-swat team mailing list archive

[Theodore Ts'o <tytso@xxxxxxx>]

Yes, I'm able to reproduce it, and I even understand why it's failing
now.

The problem is that the kernel makefile is using the -MD option to
request that the makefile dependency information gets dumped to file
(i.e., /var/lib/dkms/nvidia-current/260.19.12/build/.nv.o.d).  But
ccache 2.4 doesn't understand the -MD command, so it doesn't emulate it
if nv.o is in the ccache's cache.  Hence the .nv.o.d file is missing,
and hence the fixdep command executed by the Kernel makefile fails, and
hence, the dkms build command fails.

This is fixed in ccache 3.0 (and ccache 3.1 is the latest version); by
adding teaching ccache how to deal with the gcc option -MD.

The easy workaround for now is to make sure the environment variable
CCACHE_DISABLE is set before installing a module that uses dkms, such as
nvidia-current

-- 
Installing nvidia-current fails if ccache is enabled
https://bugs.launchpad.net/bugs/631007
You received this bug notification because you are a member of Ubuntu-X,
which is subscribed to nvidia-graphics-drivers in ubuntu.