I wrote: > I got fairly depressing results from the autoconf test suite on > macOS 12.4 (Monterey), running on an M1 MacBook Pro.
After digging in the archives I see that most of those failures can be blamed on using Apple's ancient m4, and the tests on my other machine confirm that using MacPorts' m4 instead fixes them. But there's still these two failures: 509: AC_CHECK_HEADER_STDBOOL FAILED (acheaders.at:9) 514: AC_HEADER_STDBOOL FAILED (acheaders.at:14) AFAICT, the AC_HEADER_STDBOOL macro does actually work and give the right answer (ie, that stdbool is pretty std), so I don't understand why the test cases are failing. regards, tom lane