C++ app on Ubuntu. After installing gcc 4.8.1 the gdb does not work

Question

I installed gcc 4.8.1 on Ubuntu 12.04 (I had to add ppa to do that) now gdb displays the following message:

Unable to find dynamic linker breakpoint function. GDB will b

Answer 1

Gdb is usually shipped with the toolchain.

You're probably using gdb shipped with the previous toolchain. Use

  which gdb

to discover which gdb you're using.

To debug a program compiled with the new compiler, you have to use the new gdb, weherever it is.