On Sunday 01 April 2007 12:01, Dave Korn wrote: > On 01 April 2007 07:08, ganesh subramonian wrote: > > Hi > > I work in a company where we have been using gcc-2.95.4 (based cross > > compiler) for compiling our code. Most of the code is written in c++ > > and makes extensive use of the stl libraries. We would not be changing > > our operating system or processor architecture (so portability is not > > a very good reason to give). There seems to be a lot of changes since > > gcc-2.95 as a result of which we get a large number of errors when > > trying to compile the code with gcc-3.x. > > Yes, this is known. The C++ language standard was still changing in the > 2.95->3.x timescale, and GCC moved a lot closer to strict conformance. See > > http://gcc.gnu.org/gcc-3.4/changes.html#cplusplus > > You may find that using a 3.3 series compiler requires a good deal less > rewriting than a 3.4 series compiler; which version did you try?
If you're already switching compilers, moving to an already obsolete release (3.3) seems a strange choice. At this point I'd recommend skipping 3.x altogether and going straight to gcc4.1/4.2. Many of the improvements in c++ code generation were as a result of tree-ssa, you only get with 4.x. Paul
