/home/linuxpc # ardour2
Ardour/GTK 2.8.7
(built using 6628 and GCC version 4.4.1 [gcc-4_4-branch revision 150839])
Copyright (C) 1999-2008 Paul Davis
Some portions Copyright (C) Steve Harris, Ari Johnson, Brett Viren, Joel Baker
Ardour comes with ABSOLUTELY NO WARRANTY
not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
This is free software, and you are welcome to redistribute it
under certain conditions; see the source for copying conditions.
/usr/lib64/ardour2/ardour-2.8.7: symbol lookup error: /usr/lib64/libgtkmm-2.4.so.1: undefined symbol: gtk_cell_renderer_spinner_get_type
You say you have openSUSE 11.3 but the repository obs://build.opensuse.org/home:ilfirin doesn’t contain a openSUSE 11.3 package of ardour.
So you’ve got mixed up versions.
I also couldn’t find a 11.3 package so the only thing to it is to compile it from source.