On Wed, Jul 31, 2019 at 09:50:47AM +0200, Martin Liška wrote: > > Why doesn't the jobserver work in the tests? Is that because of missing + > > somewhere in the Makefiles or is something unsetting MFLAGS or MAKEFLAGS > > env vars? > > Is Dejagnu using make internally to invoke individual tests?
No. But as I said, the same check-gcc causes many make goals running simultaneously, as you can see in the testsuite/gcc{,1,2,3,...} directories, where each runtest invoked by those goals uses gcc_parallel_test_run_p and O_EXCL files to decide which of the runtests will perform each test. Jakub