shithub: dav1d

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meson: Make docs generation subproject-safe

meson.source_root() returns the root of a parent project if dav1d is
embedded as a subproject.

--- a/doc/meson.build

+++ b/doc/meson.build

@@ -27,8 +27,8 @@

 if doxygen.found() and dot.found()

     conf_data = configuration_data()

-    conf_data.set('DOXYGEN_INPUT', join_paths(meson.source_root(), 'include/dav1d'))

-    conf_data.set('DOXYGEN_STRIP', join_paths(meson.source_root(), 'include'))

+    conf_data.set('DOXYGEN_INPUT', join_paths(dav1d_src_root, 'include/dav1d'))

+    conf_data.set('DOXYGEN_STRIP', join_paths(dav1d_src_root, 'include'))

     conf_data.set('DOXYGEN_OUTPUT', meson.current_build_dir())

     doxyfile = configure_file(input: 'Doxyfile.in',

                               output: 'Doxyfile',