[DRE-maint] Bug#774618: FTBFS on arm64, mips64el and ppc64el

[James Cowgill]

Source: ruby-lapack
Version: 1.6-2
Severity: important

Hi,

ruby-lapack FTBFS on arm64, mips64el and ppc64el.

https://buildd.debian.org/status/fetch.php?pkg=ruby-lapack&arch=arm64&ver=1.6-2&stamp=1409970160
https://buildd.debian.org/status/fetch.php?pkg=ruby-lapack&arch=ppc64el&ver=1.6-2&stamp=1412520631
http://mips64el.debian.net/debian/buildlog/r/ruby-lapack_1.6-2/ruby-lapack_1.6-2_mips64el-20140919-0620.build

There are lots of warnings like this:
> sspsv.c:67:5: warning: format '%d' expects argument of type 'int', but argument 3 has type 'integer'

Which I'm guessing cause the buffer overflow when the tests are run:
> *** Error in `/usr/bin/testrb2.1: GelsyTest#test_cgelsy': free(): invalid next size (fast): 0x0000000022674590 ***
> debian/ruby-tests.rb:3:in `<main>': unhandled exception

Thanks,
James