Re: libusb, cups compatability...

[idunham@lavabit.com]

> On Tue, Jul 24, 2012 at 11:36:38PM -0700, idunham@lavabit.com wrote:
>> I've been needing to set up printing, so I went ahead and compiled
>> libusb
>> 1.0.9 and cups 1.5.3.
>
> Nice.
>
>> libusb needs the  TIMESPEC_TO_TIMEVAL macro; for the time being, I added
>> the definition to libusb (diff attached for Gregor's sake).
>> It probably should go in sys/time.h with gnu | bsd visibility instead.
>> Other than that, libusb compiles.
>
> Is there a corresponding opposite-direction macro that should be
> added?
Yes, TIMEVAL_TO_TIMESPEC. I didn't submit a header patch because I was too
impatient to implement the latter, and figured both should be added at
once.

>> CUPS builds for the most part; in ppdc, genstrings segfaults (haven't
>> built gdb, can't say what the issue is). make || make would finish,
>> though...
>
> This suggests a broken makefile, though most makefiles are broken in
> the same regard... Because the program crashed while writing a target,
> that target, probably corrupted, exists with a valid timestamp and
> causes make to think it doesn't need to be generated the next time
> around. Really, any command in make should move the successfully-built
> file into place _atomically_ (e.g. first writing to a temp file then
> moving it) so this can't happen.

It writes  sample.c (IIRC) which is apparently supposed to contain
localization strings (yes, it builds a C++ file to generate a C file that
has the localization hard-coded inside)...however, the file is empty in
this case.

> Anyway, to get back on-topic, I suspect the generated file was
> incomplete/corrupt and this might be causing problems later down the
> line.
Empty.
This is the main directory that causes trouble during make test; there may
be other issues causing segfaults at both points, however.