Enable an individual testsuite only through the corresponding enable.
Use BUILD_TESTS to change the default value of the individual testsuite
enable options. This allows the user to enable all testsuites with
specific exceptions.
For example, this builds all testsuites except the benchmarks:
[arch/bsp]
BUILD_TESTS = True
BUILD_BENCHMARKS = False
Merge the "default" and "default-by-variant" attributes. Use an
"enabled-by" expression to select the default value based on the enabled
set. This makes it possible to select default values depending on other
options. For example you could choose memory settings based on whether
RTEMS_SMP is enabled or disabled.
The change was tested by comparing the output of
./waf bspdefaults
before and after the change.
