Bug#751943: testsuite doesnt respect DEB_BUILD_OPTIONS=parallel=X

[Riku Voipio]

Package: llvm-toolchain-3.4
Version: 1:3.4.2-2
Severity: important

>From the build log:

https://buildd.debian.org/status/fetch.php?pkg=llvm-toolchain-3.4&arch=armhf&ver=1%3A3.4.2-2&stamp=1403011962

Making LLVM unittest 'lit.site.cfg' file...
( ulimit -t 600 ; ulimit -d 512000 ; ulimit -m 512000 ; ulimit -s 8192 ;
\
  /usr/bin/python /«PKGBUILDDIR»/utils/lit/lit.py -s -v . )
  -- Testing: 9320 tests, 4 threads --

The parallel flag was set to 2, yet the testsuite is run with 4 threads.

The lit manual suggests that without -j option, lit autodetects amount of cpu's
for test run.

Riku