configure: check for execinfo.h to make ab62d6111b6c effective
configure: check for execinfo.h to make ab62d6111b6c effective

zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb