diff --git a/doxygen.cfg.in b/doxygen.cfg.in
index 7a89df738f..2cb75deb0c 100644
--- a/doxygen.cfg.in
+++ b/doxygen.cfg.in
@@ -741,7 +741,7 @@ WARNINGS               = YES
 # will automatically be disabled.
 # The default value is: YES.
 
-WARN_IF_UNDOCUMENTED   = YES
+WARN_IF_UNDOCUMENTED   = NO
 
 # If the WARN_IF_DOC_ERROR tag is set to YES, doxygen will generate warnings for
 # potential errors in the documentation, such as not documenting some parameters
@@ -904,7 +904,12 @@ EXCLUDE_SYMLINKS       = NO
 # Note that the wildcards are matched against the file with absolute path, so to
 # exclude all test directories for example use the pattern */test/*
 
-EXCLUDE_PATTERNS       =
+# CMake places MOC and UIC output in qtui_autogen.
+# XXX Should we exclude CMAKE_BINARY_DIR?
+EXCLUDE_PATTERNS       = \
+        */CMakeFiles/* \
+        */epan/dissectors/asn1/* \
+        */qtui_autogen/*
 
 # The EXCLUDE_SYMBOLS tag can be used to specify one or more symbol names
 # (namespaces, classes, functions, etc.) that should be excluded from the