I wrote: > (That verbiage is from the gcc manual; clang seems to act the same > except that -Wcast-function-type is selected by -Wall, or perhaps is > even on by default.)
Nah, scratch that: the reason -Wcast-function-type is on is that we explicitly enable it, and have done so since de8feb1f3 (v14). I did not happen to see this warning with gcc because the test runs I made with this patch already had c35ba141d, whereas I did my clang test on another machine that wasn't quite up to HEAD. So we should have good warning coverage for bogus walker signatures on both compilers. regards, tom lane