values.h patch from Alex Howansky

src/backend/optimizer/geqo/geqo_eval.c

src/backend/optimizer/geqo/minspantree.c

src/backend/optimizer/path/_deadcode/xfunc.c

src/backend/postmaster/postmaster.c

src/backend/utils/adt/date.c

src/backend/utils/adt/float.c