We use hsregex on older Solaris (2.0-2.5 or something like that). Theoretically maybe something stops working or starts working when the switch is made, but beyond that theoretical possibility does anyone have real knowledge that there is a non-trivial likelihood of that occurring or that actual problems have been seen when this was done?
just to follow up on a previous stupid question:
100% likelihood of binary compatibility breakage since regmatch_t size changes, and Apache modules deal with size and layout of that structure :)
