stop using deprecated 'makeopts', 'premakeopts' and 'shared_lib_ext'
enable triggering errors on use of deprecated functionality by defining $EASYBUILD_DEPRECATED prior to initialising the EasyBuild configuration
Merge branch 'develop' into fix_deprecated
Merge branch 'develop' into fix_deprecated
Merge branch 'develop' into fix_deprecated
Merge branch 'develop' into fix_deprecated
Merge pull request #1252 from boegel/fix_deprecated

stop using deprecated 'makeopts', 'premakeopts' and 'shared_lib_ext'