1. The elder RH4.2 gcc I used the include file "typeinfo", there is no typeinfo in gcc anymore, there is in egcs, but do I want to use this? 2. In egcs I'm unable to link libg++, I'm now using libstdc++ but my preference is with libg++
1) EGCS is replacing gcc in the Red Hat distribution. Yes, use egcs for C++ work. 2) libg++ is supported only on i386 in Red Hat 5.2 and will not be supported in Red Hat 6.0. Either convert to libstdc++ or compile your own version of libg++