The FTBFS happens because "/usr/share/man/man3/gv_tcl.3" is missing. There is this package called "libgv-tcl" which contains "/usr/share/man/man3/gv_tcl.3.gz" which is almost the same filename.
It sounds to me that A) libgv-tcl should be added as a build-dep for libgraphviz4, and B) the filename reference should be changed to account for the fact that this man page is nowadays gzipped?
The FTBFS happens because "/usr/share/ man/man3/ gv_tcl. 3" is missing. There is this package called "libgv-tcl" which contains "/usr/share/ man/man3/ gv_tcl. 3.gz" which is almost the same filename.
It sounds to me that A) libgv-tcl should be added as a build-dep for libgraphviz4, and B) the filename reference should be changed to account for the fact that this man page is nowadays gzipped?