In MuPdf-1.20.0 the search API, in particular the function
fz_search_stext_page was extended by an additional parameter.

Because of that, building zathura-pdf-mupdf against MuPDF-1.20.0 fails.

Therefore, I adapted the fz_search_stext_page call, adding NULL as the
new hit_mark parameter.

From this change on, >=MuPDF-1.20.0 is necessary to build
zathura-pdf-mupdf.

Version 0.3.8

If Debian's mupdf with pkgconfig files is detected, the additional
required libraries are linked.

link against tesseract/leptonica for mupdf 1.19.0

See merge request !7

Version 0.3.7

Changed internal link generation to account for chapters

See merge request !6

Changed index building to take chapters into account

See merge request !5

link against gumbo for mupdf 1.18

See merge request !4

Version 0.3.6

Version 0.3.5

Version 0.3.4

cc.find_library() just check if a library exists by linking it via
`-l<libname>', no `lib' prefix is needed when calling it.