add CUNKNOWN make variables to entry Makefiles

2015/burton/Makefile

@@ -43,9 +43,13 @@ CSILENCE= -Wno-char-subscripts -Wno-empty-body -Wno-long-long -Wno-parentheses \
 	  -Wno-misleading-indentation -Wno-sequence-point -Wno-sign-compare \
           -Wno-unused-value -Wno-strict-prototypes
 
+# Attempt to silence unknown warnings
+#
+CUNKNOWN= -Wno-unknown-warning-option
+
 # Common C compiler warning flags
 #
-CWARN= -Wall -Wextra -pedantic ${CSILENCE}
+CWARN= -Wall -Wextra ${CSILENCE} ${CUNKNOWN}
 
 # Compiler standard
 #
@@ -53,9 +57,6 @@ CSTD= -std=gnu90
 
 # Compiler bit architecture
 #
-# Some entries require 32-bitness: ARCH= -m32
-# Some entries require 64-bitness: ARCH= -m64
-#
 ARCH=
 
 # Defines that are needed to compile
@@ -91,7 +92,7 @@ CSILENCE+= -Wno-cast-align -Wno-comma -Wno-implicit-int-conversion \
 	   -Wno-poison-system-directories -Wno-shadow -Wno-shorten-64-to-32 \
 	   -Wno-sign-conversion -Wno-strict-prototypes \
 	   -Wno-incompatible-function-pointer-types-strict -Wno-reserved-identifier \
-	   -Wno-unsafe-buffer-usage -Wno-unknown-warning-option
+	   -Wno-unsafe-buffer-usage
 #
 CWARN+= -Weverything
 #