Because the "tcl" USE-flag for dev-lang/swig has been dropped, media-gfx/graphviz fails to build with USE=tcl, as it dies in pkg_setup due to built_with_use being called on a package that no longer has that USE flag. The easiest way to fix this would probably be to either change "built_with_use dev-lang/swig tcl" to "built_with_use --missing true dev-lang/swig tcl", or to drop the requirement, per bug 249565.
fixed in cvs, thanks for the report.
For me, the recompilation now fails with the following problem, but it was OK before. (I just recompile because of libXaw update.) Couldn't it be related to this bug? Or is it a problem with the newly stabilised GCC 4.3? gv_tcl.cpp:2052: error: expected unqualified-id before ‘%’ token gv_tcl.cpp:2056: error: expected unqualified-id before ‘%’ token make[4]: *** [libgv_tcl_la-gv_tcl.lo] Error 1 make[4]: *** Waiting for unfinished jobs.... x86_64-pc-linux-gnu-g++ -shared -nostdlib /usr/lib/gcc/x86_64-pc-linux-gnu/4.3.2/../../../../lib64/crti.o /usr/lib/gcc/x86_64-pc-linux-gnu/4.3.2/crtbeginS.o .libs/libgv_java_la-gv.o .libs/libgv_java_la-gv_dummy_init.o .libs/libgv_java_la-gv_java.o -Wl,--rpath -Wl,/var/tmp/portage/media-gfx/graphviz-2.20.3/work/graphviz-2.20.3/lib/gvc/.libs -Wl,--rpath -Wl,/var/tmp/portage/media-gfx/graphviz-2.20.3/work/graphviz-2.20.3/lib/graph/.libs -Wl,--rpath -Wl,/var/tmp/portage/media-gfx/graphviz-2.20.3/work/graphviz-2.20.3/lib/cdt/.libs -L/var/tmp/portage/media-gfx/graphviz-2.20.3/work/graphviz-2.20.3/lib/graph/.libs -L/var/tmp/portage/media-gfx/graphviz-2.20.3/work/graphviz-2.20.3/lib/cdt/.libs ../../lib/gvc/.libs/libgvc.so -L/var/tmp/portage/media-gfx/graphviz-2.20.3/work/graphviz-2.20.3/lib/pathplan/.libs -L/usr/lib64 ../../lib/graph/.libs/libgraph.so ../../lib/cdt/.libs/libcdt.so -L/usr/lib/gcc/x86_64-pc-linux-gnu/4.3.2 -L/usr/lib/gcc/x86_64-pc-linux-gnu/4.3.2/../../../../lib64 -L/lib/../lib64 -L/usr/lib/../lib64 -L/usr/lib/gcc/x86_64-pc-linux-gnu/4.3.2/../../../../x86_64-pc-linux-gnu/lib -L/usr/lib/gcc/x86_64-pc-linux-gnu/4.3.2/../../.. -lstdc++ -lm -lc -lgcc_s /usr/lib/gcc/x86_64-pc-linux-gnu/4.3.2/crtfastmath.o /usr/lib/gcc/x86_64-pc-linux-gnu/4.3.2/crtendS.o /usr/lib/gcc/x86_64-pc-linux-gnu/4.3.2/../../../../lib64/crtn.o -march=athlon64 -Wl,-O1 -Wl,-soname -Wl,libgv_java.so -o .libs/libgv_java.so creating libgv_java.la (cd .libs && rm -f libgv_java.la && ln -s ../libgv_java.la libgv_java.la) make[4]: Leaving directory `/var/tmp/portage/media-gfx/graphviz-2.20.3/work/graphviz-2.20.3/tclpkg/gv' make[3]: *** [all-recursive] Error 1 make[3]: Leaving directory `/var/tmp/portage/media-gfx/graphviz-2.20.3/work/graphviz-2.20.3/tclpkg/gv' make[2]: *** [all-recursive] Error 1 make[2]: Leaving directory `/var/tmp/portage/media-gfx/graphviz-2.20.3/work/graphviz-2.20.3/tclpkg' make[1]: *** [all-recursive] Error 1 make[1]: Leaving directory `/var/tmp/portage/media-gfx/graphviz-2.20.3/work/graphviz-2.20.3' make: *** [all] Error 2
