#44193: qt: allow side by side installation of qt4-mac and qt5-mac -------------------------------+------------------------ Reporter: mojca@… | Owner: mcalhoun@… Type: enhancement | Status: new Priority: Normal | Milestone: Component: ports | Version: Resolution: | Keywords: Port: qt4-mac, qt5-mac | -------------------------------+------------------------ Comment (by hans_meine@…): AFAIK, -no-exceptions ''was'' the default (maybe only de-facto) in the past, in the era of GCC 2.95 and 3.x, when it would seriously speed up large Qt-based projects (e.g. KDE). However, compilers have become more efficient in the meantime, and more people are actually ''making use'' of exceptions (e.g. in the past, their use was discouraged in KDE for performance reasons), so the recommendation was changed. (With -no-exceptions, you would have to catch exceptions before entering Qt; I do not want to imply that it is not possible at all to use exceptions with -no-exceptions.) -- Ticket URL: <https://trac.macports.org/ticket/44193#comment:69> MacPorts <https://www.macports.org/> Ports system for OS X