Doxygen: only generate documentation for [Objective-]C[++] files

crashpad.doxy

 # Doxyfile 1.8.7
 
 # This file describes the settings to be used by the documentation system
 # doxygen (www.doxygen.org) for a project.
 #
 # All text after a double hash (##) is considered a comment and is placed in
 # front of the TAG it is preceding.
 #
 # All text after a single hash (#) is considered a comment and will be ignored.
 # The format is:
@@ skipping 756 matching lines @@
 
 # If the value of the INPUT tag contains directories, you can use the
 # FILE_PATTERNS tag to specify one or more wildcard patterns (like *.cpp and
 # *.h) to filter out the source-files in the directories. If left blank the
 # following patterns are tested:*.c, *.cc, *.cxx, *.cpp, *.c++, *.java, *.ii,
 # *.ixx, *.ipp, *.i++, *.inl, *.idl, *.ddl, *.odl, *.h, *.hh, *.hxx, *.hpp,
 # *.h++, *.cs, *.d, *.php, *.php4, *.php5, *.phtml, *.inc, *.m, *.markdown,
 # *.md, *.mm, *.dox, *.py, *.f90, *.f, *.for, *.tcl, *.vhd, *.vhdl, *.ucf,
 # *.qsf, *.as and *.js.
 
-FILE_PATTERNS          =
+FILE_PATTERNS          = *.c *.cc *.h *.m *.mm
 
 # The RECURSIVE tag can be used to specify whether or not subdirectories should
 # be searched for input files as well.
 # The default value is: NO.
 
 RECURSIVE              = YES
 
 # The EXCLUDE tag can be used to specify files and/or directories that should be
 # excluded from the INPUT source files. This way you can easily exclude a
 # subdirectory from a directory tree whose root is specified with the INPUT tag.
@@ skipping 1515 matching lines @@
 # This tag requires that the tag HAVE_DOT is set to YES.
 
 GENERATE_LEGEND        = YES
 
 # If the DOT_CLEANUP tag is set to YES doxygen will remove the intermediate dot
 # files that are used to generate the various graphs.
 # The default value is: YES.
 # This tag requires that the tag HAVE_DOT is set to YES.
 
 DOT_CLEANUP            = YES