Unfortunately it seems to be broken again with MuPDF 1.17. Now I get

```
In file included from sources/fitzmodel.cpp:37:
/usr/include/mupdf/fitz/document.h:13:16: error: using typedef-name ‘fz_document’ after ‘struct’
   13 | typedef struct fz_document fz_document;
      |                ^~~~~~~~~~~
In file included from sources/fitzmodel.cpp:24:
sources/fitzmodel.h:34:30: note: ‘fz_document’ has a previous declaration here
   34 | typedef struct fz_document_s fz_document;
      |                              ^~~~~~~~~~~
In file included from sources/fitzmodel.cpp:37:
/usr/include/mupdf/fitz/document.h:13:28: error: conflicting declaration ‘typedef int fz_document’
   13 | typedef struct fz_document fz_document;
      |                            ^~~~~~~~~~~
In file included from sources/fitzmodel.cpp:24:
sources/fitzmodel.h:34:30: note: previous declaration as ‘typedef struct fz_document_s fz_document’
   34 | typedef struct fz_document_s fz_document;
      |                              ^~~~~~~~~~~
In file included from sources/fitzmodel.cpp:37:
/usr/include/mupdf/fitz/document.h:15:16: error: using typedef-name ‘fz_page’ after ‘struct’
   15 | typedef struct fz_page fz_page;
      |                ^~~~~~~
In file included from sources/fitzmodel.cpp:24:
sources/fitzmodel.h:33:26: note: ‘fz_page’ has a previous declaration here
   33 | typedef struct fz_page_s fz_page;
      |                          ^~~~~~~
In file included from sources/fitzmodel.cpp:37:
/usr/include/mupdf/fitz/document.h:15:24: error: conflicting declaration ‘typedef int fz_page’
   15 | typedef struct fz_page fz_page;
      |                        ^~~~~~~
In file included from sources/fitzmodel.cpp:24:
sources/fitzmodel.h:33:26: note: previous declaration as ‘typedef struct fz_page_s fz_page’
   33 | typedef struct fz_page_s fz_page;
      |                          ^~~~~~~
In file included from sources/fitzmodel.cpp:37:
/usr/include/mupdf/fitz/document.h:746:8: error: using typedef-name ‘fz_page’ after ‘struct’
  746 | struct fz_page
      |        ^~~~~~~
In file included from sources/fitzmodel.cpp:24:
sources/fitzmodel.h:33:26: note: ‘fz_page’ has a previous declaration here
   33 | typedef struct fz_page_s fz_page;
      |                          ^~~~~~~
In file included from sources/fitzmodel.cpp:37:
/usr/include/mupdf/fitz/document.h:772:8: error: using typedef-name ‘fz_document’ after ‘struct’
  772 | struct fz_document
      |        ^~~~~~~~~~~
In file included from sources/fitzmodel.cpp:24:
sources/fitzmodel.h:34:30: note: ‘fz_document’ has a previous declaration here
   34 | typedef struct fz_document_s fz_document;
      |                              ^~~~~~~~~~~
sources/fitzmodel.cpp: In member function ‘virtual QList<qpdfview::Model::Link*> qpdfview::Model::FitzPage::links() const’:
sources/fitzmodel.cpp:254:49: error: cannot convert ‘fz_location’ to ‘const int’ in initialization
  254 |                 const int page = fz_resolve_link(m_parent->m_context, m_parent->m_document, link->uri, &left, &top);
      |                                  ~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
      |                                                 |
      |                                                 fz_location
make[2]: *** [Makefile.fitz-plugin:835: objects-fitz/fitzmodel.o] Error 1
```