hpcugent/easybuild-framework — pull request #638 by boegel (2013-05-22 10:10:51+00:00)
Title: make BLACS optional as toolchain element, depending on ScaLAPACK version

This is required to support both iqacml 3.x and 4.x, for example (see https://github.com/hpcugent/easybuild-easyconfigs/pull/267)