Back Revving GCC

raptor95368 · 05-31-2007, 10:46 AM

I have a friend who is trying to back rev GCC from 4.1.1 to 3.4.4 due to the older system he is installing on. To date, this has been an unsuccessful venture. Has anyone done this and if so, can tips to make this transition backwards successful be shared?

Cheers

weibullguy · 05-31-2007, 11:05 AM

Why doesn't 4.1.1 work for your older system; what do you need from 3.4.4 that 4.1.1 doesn't have?. What problems are you having? How are you trying to install 3.4.4, source or precompiled?

raptor95368 · 05-31-2007, 11:57 AM

Building from source, building an application in GCC 3 recognized a time stamp and assigned an out for it...in 4.1.1 it complains during compiling that there is no out for an 8 bit time stamp and the build terminates...the gentleman says he needs to modify the gcc code so that 4 recognizes the time stamp the way the 3 did or back rev to the 3 version. Thanks for the response...

weibullguy · 05-31-2007, 12:42 PM

I've seen people think old machine = old version of software, that's why I ask; usually no technical reason. Seems that it would make more sense to modify the application code rather than the compiler code.

In any event, here are some instructions for building gcc v3 and installing it in /opt. They use 3.3.6, but, IIRC, I've used them for 3.4.6 with only minor modifications. Gives you the option of using v4 or v3 on your machine.