Also fix the wrong check in cppunit/ExternalProject_cppunit.mk
which caused cppunit to always be built without -D_GLIBCXX_DEBUG.
Change-Id: Ia247dcd84e2c6fa0e9384fd27643537984d980b5
for some reason there was an infinite loop during build, not sure why this
makes a difference, but surely making it consistent with the other cases
can't hurt
Pass correct -I flag to acloal in the ACLOCAL environemnt variable,
and set that environment variable for the running of autoreconf for it
it to have any effect.
Change-Id: I64238b6b96539dff28c2ddc16cc17f18ebb22129
