Index: meson/part/tools/meson.build
===================================================================
--- meson/part/tools/meson.build	(revision c21d4d64870698b91707f203def6398db79bff84)
+++ meson/part/tools/meson.build	(revision 602b8c0fa9c92672fb83fa63e372584b15fd228a)
@@ -40,5 +40,5 @@
 cp = find_program('cp')
 dirname = find_program('dirname')
-doxygen = find_program('doxygen')
+doxygen = find_program('doxygen', required: false)
 find = find_program('find')
 grep = find_program('grep')