Compilation results in missing symbols. I do have the library that has these symbols, but the library doesn't appear to be referenced anywhere in the build.

./autogen.sh --disable-Bsymbolic && make

*** Warning: Linking the shared library librsvg-2.la against the
*** static library /tmp/librsvg/target/release/librsvg_internals.a is not portable!
Undefined symbols for architecture x86_64:
  "_FcConfigAppFontAddFile", referenced from:
      _rsvg_cairo_create_pango_context in librsvg_2_la-rsvg-cairo-draw.o
  "_FcConfigCreate", referenced from:
      _rsvg_cairo_create_pango_context in librsvg_2_la-rsvg-cairo-draw.o
  "_FcConfigDestroy", referenced from:
      _rsvg_cairo_render_free in librsvg_2_la-rsvg-cairo-render.o
  "_pango_fc_font_map_get_type", referenced from:
      _rsvg_cairo_create_pango_context in librsvg_2_la-rsvg-cairo-draw.o
  "_pango_fc_font_map_set_config", referenced from:
      _rsvg_cairo_create_pango_context in librsvg_2_la-rsvg-cairo-draw.o
ld: symbol(s) not found for architecture x86_64

The symbols are in:
/usr/local/Cellar/pango/1.40.4/lib/libpangoft2-1.0.a
/usr/local/Cellar/pango/1.40.4/lib/libpangoft2-1.0.dylib

I have pango installed via homebrew.

pkg-config --libs pango
-L/usr/local/Cellar/pango/1.40.4/lib -L/usr/local/Cellar/glib/2.50.3/lib -L/usr/local/opt/gettext/lib -lpango-1.0 -lgobject-2.0 -lglib-2.0 -lintl

pkg-config --libs pangoft2
-L/usr/local/Cellar/pango/1.40.4/lib -L/usr/local/Cellar/glib/2.50.3/lib -L/usr/local/opt/gettext/lib -L/usr/local/Cellar/fontconfig/2.12.1_2/lib -L/usr/local/opt/freetype/lib -lpangoft2-1.0 -lpango-1.0 -lgobject-2.0 -lglib-2.0 -lintl -lfontconfig -lfreetype