Kia ora, In one out of one samples I checked, the result of mktemp was only checked for != NULL rather than a more robust check. That same sample (xsrc/external/mit/smproxy/dist/save.c) also preferred to use mkstemp.
mktemp() got removed from POSIX because using it is just wrong. Given how much work NetBSD and the external source maintainers have clearly put into removing uses of mktemp() IMHO I don't think fiddling with it is warranted. Ngā mihi, Lloyd
