Looking at things more closely, I realize that the warnings are not
showing up in most compiles (if they were, you'd have many more of
them). They are only showing up in the llvmjit_*.cpp files, which
need to be built with a C++ compiler not gcc. I can see in your
make log that those are getting built with "c++", so now I wonder
exactly which compiler that is.
You could probably suppress these complaints by passing "CXX=g++"
to configure. Or at least, you could if g++ was installed, but
I think configure will default to that if it can find it...
regards, tom lane
