Could you please change the new tests to
/[aC]/mg,firstline,newline=lf match\nmatch /[aCz]/mg,firstline,newline=lf match\nmatch or add #newline_default lf to the beginning of the testinput17 file?Many other test files also use either of the two to accommodate for non-standard NEWLINE_DEFAULT.
Thanks, Ralf -- ## List details at https://lists.exim.org/mailman/listinfo/pcre-dev