ensure that including valgrind.h is within the WANT_MEMCHECKER macro.
But this does not seem right; memchecker is a framework and valgrind
is the component -- why are we including a component-specific header
file in a top-level OMPI .h file? It seems like there should be a
memchecker .h file that generically hides these component-specific
details (i.e., what if we add some other memchecker components
someday?).
This commit was SVN r17432.
7746549f30