File pcre-8.30.diff of Package qpdf
--- libqpdf/PCRE.cc +++ libqpdf/PCRE.cc @@ -144,7 +144,7 @@ this->code = pcre_compile(pattern, options, &errptr, &erroffset, 0); if (this->code) { - this->nbackrefs = pcre_info(this->code, 0, 0); + pcre_fullinfo(this->code, 0, PCRE_INFO_CAPTURECOUNT, &(this->nbackrefs)); } else {