diff --git a/manual/Doxyfile b/manual/Doxyfile
index 049b89271..de176b30b 100644
--- a/manual/Doxyfile
+++ b/manual/Doxyfile
@@ -705,7 +705,7 @@ CITE_BIB_FILES         =
 # messages are off.
 # The default value is: NO.
 
-QUIET                  = NO
+QUIET                  = YES
 
 # The WARNINGS tag can be used to turn on/off the warning messages that are
 # generated to standard error (stderr) by doxygen. If WARNINGS is set to YES
@@ -714,14 +714,14 @@ QUIET                  = NO
 # Tip: Turn warnings on while writing the documentation.
 # The default value is: YES.
 
-WARNINGS               = YES
+WARNINGS               = NO
 
 # If the WARN_IF_UNDOCUMENTED tag is set to YES then doxygen will generate
 # warnings for undocumented members. If EXTRACT_ALL is set to YES then this flag
 # 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
@@ -729,7 +729,7 @@ WARN_IF_UNDOCUMENTED   = YES
 # markup commands wrongly.
 # The default value is: YES.
 
-WARN_IF_DOC_ERROR      = YES
+WARN_IF_DOC_ERROR      = NO
 
 # This WARN_NO_PARAMDOC option can be enabled to get warnings for functions that
 # are documented, but have no documentation for their parameters or return
diff --git a/manual/Makefile b/manual/Makefile
index 4b1fd0901..9875921aa 100644
--- a/manual/Makefile
+++ b/manual/Makefile
@@ -101,7 +101,7 @@ endif
 .PHONY: doxygen
 
 doxygen:
-	$(doxygen)
+	${Q}$(doxygen)
 
 # Xml files generated by doxygen
 ${DoxygenXml}/%.xml: doxygen