Andres Freund <and...@anarazel.de> writes: > I tried to run postgres with ubsan to debug something.
For 0001, could we just replace configure's dlopen check with the dlsym check? Or are you afraid of reverse-case failures? 0002: ugh, but my only real complaint is that __ubsan_default_options needs more than zero comment. Also, it's not "our" getenv is it? 0003: OK. Interesting though that we haven't seen these before. 0004: no opinion regards, tom lane