Hmm ... It's impossible ;-) This RPM doesn't exist on any FTP server

Provides :
libgdtclft.so.0
libgv_tcl.so
libtcldot.so.0
libtcldot_builtin.so.0
libtclplan.so.0
libtkspline.so.0
graphviz-tcl
graphviz-tcl(x86-32)

Requires :

libstdc++.so.6(GLIBCXX_3.4)
libgobject-2.0.so.0
libtcldot_builtin.so.0
libdl.so.2(GLIBC_2.1)
libdl.so.2
rtld(GNU_HASH)
tcl => 8.3
libpangocairo-1.0.so.0
libm.so.6
graphviz = 2.26.0-10.el6
libstdc++.so.6(GLIBCXX_3.4.9)
libc.so.6(GLIBC_2.4)
libgcc_s.so.1
libexpat.so.1
libz.so.1
libpango-1.0.so.0
libc.so.6(GLIBC_2.1.3)
rpmlib(PayloadIsXz) <= 5.2-1
libXpm.so.4
libtcldot.so.0
libc.so.6(GLIBC_2.7)
libcdt.so.4
libtkspline.so.0
libgraph.so.4
libc.so.6(GLIBC_2.0)
libdl.so.2(GLIBC_2.0)
libxdot.so.4
rpmlib(PayloadFilesHavePrefix) <= 4.0-1
libpng12.so.0
libtclplan.so.0
libjpeg.so.62
libc.so.6(GLIBC_2.3)
libm.so.6(GLIBC_2.0)
libgmodule-2.0.so.0
libX11.so.6
rpmlib(FileDigests) <= 4.6.0-1
rpmlib(CompressedFileNames) <= 3.0.4-1
libtk8.5.so
libstdc++.so.6
libcairo.so.2
libgd.so.2
libc.so.6(GLIBC_2.1)
libfontconfig.so.1
libfreetype.so.6
tk
libglib-2.0.so.0
libm.so.6(GLIBC_2.1)
libgcc_s.so.1(GCC_3.0)
libgdtclft.so.0
libgvc.so.5
libstdc++.so.6(CXXABI_1.3)
libc.so.6
libpathplan.so.4
libc.so.6(GLIBC_2.3.4)

Content of RPM :
/usr/lib/graphviz/tcl
/usr/lib/graphviz/tcl/libgdtclft.so
/usr/lib/graphviz/tcl/libgdtclft.so.0
/usr/lib/graphviz/tcl/libgdtclft.so.0.0.0
/usr/lib/graphviz/tcl/libgv_tcl.so
/usr/lib/graphviz/tcl/libtcldot.so
/usr/lib/graphviz/tcl/libtcldot.so.0
/usr/lib/graphviz/tcl/libtcldot.so.0.0.0
/usr/lib/graphviz/tcl/libtcldot_builtin.so
/usr/lib/graphviz/tcl/libtcldot_builtin.so.0
/usr/lib/graphviz/tcl/libtcldot_builtin.so.0.0.0
/usr/lib/graphviz/tcl/libtclplan.so
/usr/lib/graphviz/tcl/libtclplan.so.0
/usr/lib/graphviz/tcl/libtclplan.so.0.0.0
/usr/lib/graphviz/tcl/libtkspline.so
/usr/lib/graphviz/tcl/libtkspline.so.0
/usr/lib/graphviz/tcl/libtkspline.so.0.0.0
/usr/lib/graphviz/tcl/pkgIndex.tcl
/usr/lib/tcl8.5/graphviz
/usr/share/man/man3/gdtclft.3tcl.gz
/usr/share/man/man3/gv.3tcl.gz
/usr/share/man/man3/tcldot.3tcl.gz
/usr/share/man/man3/tkspline.3tk.gz