Build errors when compiling from source

[oskooi]

There are build errors when running sh autogen.sh --enable-shared && make on the master branch (e8a023c). This seems to be related to #74.

geom.c:1964:30: error: unknown type name ‘mesh_bvh_node’
 1964 | static void bvh_node_set_box(mesh_bvh_node *node, const geom_box *box) {
      |                              ^~~~~~~~~~~~~
geom.c: In function ‘mesh_triangle_vertices’:
geom.c:1972:42: error: subscripted value is neither array nor pointer nor vector
 1972 |   *v0 = m->vertices.items[m->face_indices[3 * face_id]];

[oskooi]

The errors are fixed by #88.

[stevengj]

Duplicate of #86