Qt is under the LGPL. So long as you do not modify the main libraries you are fr... | Hacker News

Hacker News new | past | comments | ask | show | jobs | submit

login

X-Istence on July 19, 2011 | parent | context | favorite | on: Nginx established as a company

Qt is under the LGPL. So long as you do not modify the main libraries you are free to link against it with a proprietary app and can distribute the binaries so long as you also provide source when asked.

See: http://qt.nokia.com/products/licensing

nl on July 19, 2011 [–]

Historically, that wasn't always the case: http://en.wikipedia.org/wiki/Qt_(framework)#Licensing

The LGPL option was only added in 2009. Prior to that, various licencing mechanisms were used to extract revenue on various platforms.

(Eg, at one point the *nix version was GPL'ed but the Windows one wasn't, so you needed to pay to ship it on Windows)

Join us for AI Startup School this June 16-17 in San Francisco!
Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact