libvaladoc: undefined reference to valadoc_compat_gvc_init

[milahu]

fails to build docs

workaround: remove dependency graphviz

priority: zero

full error

[430/433] Linking target libvaladoc/libvaladoc-0.58.so.0.0.0
FAILED: libvaladoc/libvaladoc-0.58.so.0.0.0 

gcc  -o libvaladoc/libvaladoc-0.58.so.0.0.0 libvaladoc/libvaladoc-0.58.so.0.0.0.p/meson-generated_doclet.c.o libvaladoc/libvaladoc-0.58.so.0.0.0.p/meson-generated_errorreporter.c.o libvaladoc/libvaladoc-0.58.so.0.0.0.p/meson-generated_filehelper.c.o [...]

/nix/store/178vvank67pg2ckr5ic5gmdkm3ri72f3-binutils-2.39/bin/ld: libvaladoc/libvaladoc-0.58.so.0.0.0.p/meson-generated_charts_chart.c.o: in function `valadoc_charts_chart_class_init':
chart.c:(.text+0x3a): undefined reference to `valadoc_compat_gvc_init'
/nix/store/178vvank67pg2ckr5ic5gmdkm3ri72f3-binutils-2.39/bin/ld: libvaladoc/libvaladoc-0.58.so.0.0.0.p/meson-generated_charts_chartfactory.c.o: in function `valadoc_charts_factory_create_type':
chartfactory.c:(.text+0x2b9): undefined reference to `valadoc_compat_gvc_graph_create_node'
/nix/store/178vvank67pg2ckr5ic5gmdkm3ri72f3-binutils-2.39/bin/ld: libvaladoc/libvaladoc-0.58.so.0.0.0.p/meson-generated_charts_simplechartfactory.c.o: in function `valadoc_charts_simple_factory_real_add_children':
simplechartfactory.c:(.text+0xdb): undefined reference to `valadoc_compat_gvc_graph_create_edge'
/nix/store/178vvank67pg2ckr5ic5gmdkm3ri72f3-binutils-2.39/bin/ld: libvaladoc/libvaladoc-0.58.so.0.0.0.p/meson-generated_charts_simplechartfactory.c.o: in function `valadoc_charts_simple_factory_real_create_graph':
simplechartfactory.c:(.text+0x2cb): undefined reference to `valadoc_compat_gvc_graph_new'
collect2: error: ld returned 1 exit status
ninja: build stopped: subcommand failed.