Peter Eisentraut <peter.eisentr...@2ndquadrant.com> writes: > On 2020-09-02 22:43, Jesse Zhang wrote: >> | conftest.c:184:3: error: implicitly declaring library function >> 'exit' with type 'void (int) __attribute__((noreturn))' >> [-Werror,-Wimplicit-function-declaration]
> Where did the -Werror come from? Peter wasn't entirely explicit here, but note the advice at the end of https://www.postgresql.org/docs/devel/install-procedure.html that you cannot include -Werror in any CFLAGS you tell configure to use. It'd be nice if autoconf was more robust about that, but it is not our bug to fix. regards, tom lane