gfortran testsuite doesn't test updated libgfortran on cygwin

[Timothy C Prince]

Apparently, it is not possible to test updated libgfortran without running make install, at least on cygwin.  libgfortran in $(prefix) takes precedence over the one which was just built.  I suppose I should have known this from past experience.
I'm reluctant to run a series of commands like
make; make install; make check
totally unattended.
Would the following be recommended?
make; cp i686-pc-cygwin/libgfortran/.libs/libgfortran.a /usr/local/gcc43/lib/ ; make check

Tim Prince