Hi, While building the PHP 5.6.9 (which has libpcre 8.37) it seems we're missing -lpthreads build flag (for cli SAPI), as this library upgrade added this requirement.
The files requiring is pcrelib/sljit/sljitUtils.c 5.5.25, which doesn't have this file, works fine without the flag. I think this requirement should be reflected in ext/pcre/config0.m4 (or is there something more relevant?) Thanks, Kaplan