To get Code::Blocks installing you have to get a bit creative, as first download the packages for Ubuntu 15.10 from here (simply do a search for libwxgtk2.8-
). For a 64-bit system you can as well use the following links to download the packages. Best do the now stated commands in a separate directory so you not install any other downloads you maybe did before.
wget http://mirrors.kernel.org/ubuntu/pool/universe/w/wxwidgets2.8/libwxgtk2.8-0_2.8.12.1+dfsg2-2ubuntu2_amd64.deb
wget http://mirrors.kernel.org/ubuntu/pool/universe/w/wxwidgets2.8/libwxgtk2.8-dbg_2.8.12.1+dfsg2-2ubuntu2_amd64.deb
wget http://mirrors.kernel.org/ubuntu/pool/universe/w/wxwidgets2.8/libwxgtk2.8-dev_2.8.12.1+dfsg2-2ubuntu2_amd64.deb
wget http://mirrors.kernel.org/ubuntu/pool/universe/w/wxwidgets2.8/libwxbase2.8-dbg_2.8.12.1+dfsg2-2ubuntu2_amd64.deb
wget http://mirrors.kernel.org/ubuntu/pool/universe/w/wxwidgets2.8/wx2.8-headers_2.8.12.1+dfsg2-2ubuntu2_amd64.deb
Now you can go and install those by:
dpkg -i wx2.8-headers_2.8.12.1+dfsg2-2ubuntu2_amd64.deb
dpkg -i libwxgtk2.8-0_2.8.12.1+dfsg2-2ubuntu2_amd64.deb
dpkg -i libwxbase2.8-dbg_2.8.12.1+dfsg2-2ubuntu2_amd64.deb
dpkg -i libwxgtk2.8-dbg_2.8.12.1+dfsg2-2ubuntu2_amd64.deb
dpkg -i libwxgtk2.8-dev_2.8.12.1+dfsg2-2ubuntu2_amd64.deb