Comment 7 for bug 1372638

I can confirm on vivid that there is no issue to compile ibutils:
apt-get source ibutils
cd ibutils-1.5.7
udo apt-get build-dep ibutils
vi debian/control -> add ppc64el to supported Arch
dpkg-buildpackage -uc -us -rfakeroot
$ ls -latr ..
total 4804
-rw-rw-r-- 1 ubuntu ubuntu 3624582 Dec 8 2012 ibutils_1.5.7.orig.tar.gz
drwxr-xr-x 9 ubuntu ubuntu 4096 Feb 27 04:08 ..
-rw-rw-r-- 1 ubuntu ubuntu 11224 Feb 27 04:42 ibutils_1.5.7-3build1.debian.tar.xz
-rw-rw-r-- 1 ubuntu ubuntu 1430 Feb 27 04:42 ibutils_1.5.7-3build1.dsc
drwxrwxr-x 10 ubuntu ubuntu 4096 Feb 27 04:43 ibutils-1.5.7
-rw-r--r-- 1 ubuntu ubuntu 436646 Feb 27 04:47 ibutils_1.5.7-3build1_ppc64el.deb
-rw-r--r-- 1 ubuntu ubuntu 552598 Feb 27 04:47 libibdm1_1.5.7-3build1_ppc64el.deb
-rw-r--r-- 1 ubuntu ubuntu 269952 Feb 27 04:47 libibdm-dev_1.5.7-3build1_ppc64el.deb
-rw-rw-r-- 1 ubuntu ubuntu 2013 Feb 27 04:47 ibutils_1.5.7-3build1_ppc64el.changes
drwxrwxr-x 3 ubuntu ubuntu 4096 Feb 27 04:47 .
$ uname -a
Linux fauck1 3.18.0-9-generic #10-Ubuntu SMP Mon Jan 12 21:35:28 UTC 2015 ppc64le ppc64le ppc64le GNU/Linux
$ cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=15.04
DISTRIB_CODENAME=vivid
DISTRIB_DESCRIPTION="Ubuntu Vivid Vervet (development branch)"