Hi Philapol, On Thu, May 29, 2014 at 6:19 AM, Philapol wrote: > Hi, > I would like to install g++ v 4.6.4 under cygwin64 but only v 4.8.2 is > available. What is the procedure to install this older version? > > Note: I have a large (~500K loc) C++ project that builds under Ubuntu 12.04 > LTS / g++ 4.6.4; however, it will not build under cygwin64 using g++ v 4.8.2.
What was the error message? Have you tried building it with g++ 4.8.2 under Ubuntu 12.04? There are PPAs for it (http://ubuntuhandbook.org/index.php/2013/08/install-gcc-4-8-via-ppa-in-ubuntu-12-04-13-04/, http://askubuntu.com/questions/271388/how-to-install-gcc-4-8-in-ubuntu-12-04-from-the-terminal) or you could build a gcc 4.8.2 from source. There's a possibility that g++4.8.2 is stricter than g++4.6.4 and your code won't build with g++4.8.2 on any platform, in which case the Right Thing (tm) is to correct the errors in your project. I'm typing this on an Ubuntu LTS 12.04 so I can't check what the previous version of GCC is on Cygwin, but it's probably some other 4.8.x so choosing "previous" in Cygwin's setup.exe probably won't help. Your options include building a GCC 4.6.4 from source or the Cygwin Time Machine ( http://www.fruitbat.org/Cygwin/ ) HTH, Csaba -- GCS a+ e++ d- C++ ULS$ L+$ !E- W++ P+++$ w++$ tv+ b++ DI D++ 5++ The Tao of math: The numbers you can count are not the real numbers. Life is complex, with real and imaginary parts. "Ok, it boots. Which means it must be bug-free and perfect. " -- Linus Torvalds "People disagree with me. I just ignore them." -- Linus Torvalds -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple