add CUNKNOWN make variables to entry Makefiles

2000/tomx/Makefile

@@ -38,12 +38,15 @@ include ../../var.mk
 
 # Common C compiler warnings to silence
 #
-CSILENCE= -Wno-comment -Wno-strict-prototypes -Wno-stringop-overflow \
-	  -Wno-unknown-warning-option
+CSILENCE= -Wno-comment -Wno-strict-prototypes -Wno-stringop-overflow
+
+# 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
 #
@@ -51,9 +54,6 @@ CSTD= -std=gnu99
 
 # Compiler bit architecture
 #
-# Some entries require 32-bitness: ARCH= -m32
-# Some entries require 64-bitness: ARCH= -m64
-#
 ARCH=
 
 # Defines that are needed to compile
@@ -86,7 +86,7 @@ ifeq "$(findstring $(CLANG),${CC})" "$(CLANG)"
 #
 CSILENCE+= -Wno-poison-system-directories -Wno-conditional-uninitialized \
 	   -Wno-implicit-int-conversion -Wno-missing-noreturn \
-	   -Wno-extra-semi-stmt -Wno-unknown-warning-option -Wno-unsafe-buffer-usage \
+	   -Wno-extra-semi-stmt -Wno-unsafe-buffer-usage \
 	   -Wno-missing-variable-declarations -Wno-shorten-64-to-32
 #
 CWARN+= -Weverything