[cairo] make dist errors

[Bryce Harrington]

The new src/cairo-tag-attributes-private.h is resulting in some errors
running make dist:

  CHECK cairo-pdf-surface-private.h
  CHECK cairo-tag-stack-private.h
In file included from headers-standalone-tmp.c:1:0:
../../src/cairo-tag-stack-private.h:84:1: error: unknown type name ‘cairo_int_status_t’
 _cairo_tag_stack_push (cairo_tag_stack_t *stack,
 ^
../../src/cairo-tag-stack-private.h:93:1: error: unknown type name ‘cairo_int_status_t’
 _cairo_tag_stack_pop (cairo_tag_stack_t *stack,
 ^
  CHECK cairo-tag-attributes-private.h
In file included from headers-standalone-tmp.c:1:0:
../../src/cairo-tag-attributes-private.h:50:5: error: unknown type name ‘cairo_array_t’
     cairo_array_t rects; /* array of cairo_rectangle_t */
     ^
../../src/cairo-tag-attributes-private.h:55:5: error: unknown type name ‘cairo_point_double_t’
     cairo_point_double_t pos;
     ^
../../src/cairo-tag-attributes-private.h:62:5: error: unknown type name ‘cairo_bool_t’
     cairo_bool_t x_valid;
     ^
../../src/cairo-tag-attributes-private.h:63:5: error: unknown type name ‘cairo_bool_t’
     cairo_bool_t y_valid;
     ^
../../src/cairo-tag-attributes-private.h:64:5: error: unknown type name ‘cairo_bool_t’
     cairo_bool_t internal;
     ^
../../src/cairo-tag-attributes-private.h:67:1: error: unknown type name ‘cairo_private’
 cairo_private cairo_int_status_t
 ^
../../src/cairo-tag-attributes-private.h:68:1: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘_cairo_tag_parse_link_attributes’
 _cairo_tag_parse_link_attributes (const char *attributes, cairo_link_attrs_t *link_attrs);
 ^
../../src/cairo-tag-attributes-private.h:70:1: error: unknown type name ‘cairo_private’
 cairo_private cairo_int_status_t
 ^
../../src/cairo-tag-attributes-private.h:71:1: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘_cairo_tag_parse_dest_attributes’
 _cairo_tag_parse_dest_attributes (const char *attributes, cairo_dest_attrs_t *dest_attrs);
 ^
  CHECK cairo-svg-surface-private.h
  CHECK test-compositor-surface.h
  CHECK test-compositor-surface-private.h
  CHECK test-null-compositor-surface.h
  CHECK test-paginated-surface.h
make[3]: *** [headers-standalone] Error 1
make[3]: Leaving directory `/home/bryce/src/Cairo/cairo/cairo-1.15.2/_build/src'
make[2]: *** [check-recursive] Error 1
make[2]: Leaving directory `/home/bryce/src/Cairo/cairo/cairo-1.15.2/_build'
make[1]: *** [check] Error 2
make[1]: Leaving directory `/home/bryce/src/Cairo/cairo/cairo-1.15.2/_build'
make: *** [distcheck] Error 1