Somehow it does not work. With this Automake option you get:
gmake[6]: Entering directory '/build/sparc-rtems5/c/erc32/testsuites/ada/sptests'
Making all-am in sp01
gmake[7]: Entering directory '/build/sparc-rtems5/c/erc32/testsuites/ada/sptests/sp01'
gmake[7]: * No rule to make target 'init.o', needed by 'ada_sp01.exe'. Stop.