You are right that there is no demo/ subdirectory, but the documentation
should be updated to remove all instances of it now. Users can generate
output from the Autotests by passing "--debug" or "-d" to make check
with the variable TESTSUITEFLAGS [1]. The test output can be found in
tests/testsuite.dir/<test_number>, where test_number is the test you
are debugging.

[1] 
https://git.savannah.gnu.org/cgit/libtool.git/commit/?id=2048edd2cba086b194bd30901e5fe552a4890680

-- 
Ileana Dumitrescu

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