Building zathura-pdf-mupdf against a recent git checkout from mupdf (post 1.15.0 release) fails due to some code restructuring in mupdf.

http://git.ghostscript.com/?p=mupdf.git;a=commit;h=96a0000431be422c7ea4a6f8b1f207693e850ecf

http://git.ghostscript.com/?p=mupdf.git;a=commit;h=821a0b2589e750318d2b2cd2a3232bc60d4bbe07

In file included from /usr/include/mupdf/fitz.h:11,
                 from ../zathura-pdf-mupdf/plugin.h:10,
                 from ../zathura-pdf-mupdf/search.c:7:
../zathura-pdf-mupdf/search.c: In function ‘pdf_page_search_text’:
../zathura-pdf-mupdf/search.c:42:23: error: expected expression before ‘)’ token
   42 |   fz_quad* hit_bbox = fz_malloc_array(mupdf_page->ctx, N_SEARCH_RESULTS, sizeof(fz_quad));
      |                       ^~~~~~~~~~~~~~~
ninja: build stopped: subcommand failed.