In cmake_src_test(), the argument for ctest's --test-load option is obtained by calling makeopts_loadavg from multiprocessing.eclass. This may result in a floating point value, but ctest expects an integer. When the user has set a non-integral value in MAKEOPTS, ctest prints a warning and ignores the option (i.e., it runs all tests at once if -j is unlimited). This should be fixed by converting the value to integer. * The simplest (but incomplete) solution is to strip everything after a decimal point. * A general solution needs proper floating point parsing, and there aren't many options without extra dependencies. I think we could use awk, though; it's in the system set of the base profile. The following should work and be very robust (maybe cange rounding behavior?): awk '{print int($1 > 9999 ? 9999 : $1 > 1 ? $1 : 1);}' Another question is whether the fix should be put right in cmake_src_test or if it would make sense to provide an integral makeopts_loadavg variant in multiprocessing.eclass.
Another alternative would be to change ctest to accept a float.
