Hello marionog,
I recommend you to check the opensuse forums, they know their distribution a lot better than we do, for instance I have last used Suse in 9.3 days, i.e. in 2005.
Anyway, you have to install a compiler and several other tools. According to our (out-dated) wiki information for Suse, these are the packages wget gcc gcc-c++ gtk gtk-devel zlib-devel libpng-devel gd-devel
. Names might have changed now, additionally you'll have to install crypto++ (These packages are most probably callsed libcryptopp and libcryptopp-dev) and wxGTK (according to a short search wxWidgets and I guess wxWidgets-dev).
Please excuse these limited information and either wait for more knowledgeable people here or ask at the distribution's forum. If you were so kind to write down your experiences in the wiki afterwards, you would help future people in your situation a lot.