AT&T C++ 2.1;3.0.1 on a Sun: It works fine with 3.0.1. I haven't been able to test the latest version of the library on 2.1. The previous version worked fine. Except aggregates are not supported in 2.1 and setjmp.h generated a warning message. If you are using interviews you may get a conflict with Catch. Either #undefine Catch or replace Catch with CATCH throughout my package. In AT&T 2.1 you may get an error when you use an expression for the single argument when constructing a Vector or DiagonalMatrix or one of the Triangular Matrices. You need to evaluate the expression separately.
You cannot run my non-linear package with these compilers, because of my use of labels.