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e4ffa0dcb7
Recent OpenBSD (at least 5.9 and up) has a version of getopt(3) that will not cope with the "-:" spec we use to accept double-dash options in postgres.c and postmaster.c. Admittedly, that's a hack because POSIX only requires getopt() to allow alphanumeric option characters. I have no desire to find another way, however, so let's just do what we were already doing on Solaris: force use of our own src/port/getopt.c implementation. In passing, improve some of the comments around said implementation. Per buildfarm and local testing. Back-patch to all supported branches. Discussion: https://postgr.es/m/30197.1547835700@sss.pgh.pa.us