Ludovic Courtès writes:
>> - should the examples be included per default or should they go into a
>>   separate "doc" output together with the /doc directory?  Together they
>>   take up about 10MB.
>
> I would put them in “doc”.

Okay. There's now a "doc" output for /doc/ and /doc/examples/.

>> +                 (alist-cons-before
>> +                  'build 'set-build-path
>> +                  (lambda _
>> +                    (substitute* "build/common.inc"
>> +                      (("export tbb_build_prefix.+$")
>> +                       "export tbb_build_prefix?=guix\n")))
>
> Rather put this in ‘snippet’ (I think Mark made this comment on IRC.)

Done.

>> +    (synopsis "The Threading Building Blocks library abstracts low-level
>> +threading details")
>
> What about “C++ library for parallel programming” instead?

Sounds good.  Changed.

>> +    (description
>> +     "Threading Building Blocks (TBB) is a C++ runtime library that abstracts
>> +the low-level threading details necessary for optimal multi-core performance.
>> +It uses common C++ templates and coding style to eliminate tedious threading
>> +implementation work.
>> +
>> +TBB requires fewer lines of code to achieve parallelism than other threading
>> +models.  The applications you write are portable across platforms.  Since the
>> +library is also inherently scalable, no code maintenance is required as more
>> +processor cores become available.")
>
> I would indeed remove the 2nd paragraph, and perhaps add something like
> “It provides parallel loop constructs, asynchronous tasks,
> synchronization primitives, atomic operations, and more.”

Done.

>> +    ;; GPL2 with exceptions
>
> Rather: “GPLv2 with run-time exception:
> <https://www.threadingbuildingblocks.org/licensing#runtime-exception>”.

Done.

Attached is the updated patch.

~~ Ricardo