silence compiler warnings for macOS

After silencing compiler warnings for RHEL 9 Linux,
we silence the result on macOS for
Apple clang version 15.0.0 (clang-1500.3.9.4).

1995/cdua/Makefile

@@ -92,7 +92,8 @@ ifeq "$(findstring $(CLANG),${CC})" "$(CLANG)"
 CSILENCE+= -Wno-comma -Wno-missing-variable-declarations \
 	   -Wno-poison-system-directories -Wno-strict-prototypes \
 	   -Wno-format-nonliteral -Wno-sign-conversion \
-	   -Wno-incompatible-function-pointer-types-strict -Wno-unsafe-buffer-usage
+	   -Wno-incompatible-function-pointer-types-strict -Wno-unsafe-buffer-usage \
+	   -Wno-unknown-warning-option
 #
 CWARN+= -Weverything
 #

1995/dodsond2/Makefile

@@ -41,7 +41,7 @@ include ../../var.mk
 CSILENCE= -Wno-error -Wno-implicit-function-declaration \
 	  -Wno-shift-op-parentheses -Wno-strict-prototypes \
 	  -Wno-builtin-declaration-mismatch -Wno-misleading-indentation \
-	  -Wno-parentheses
+	  -Wno-parentheses -Wno-unknown-warning-option
 
 # Common C compiler warning flags
 #

1995/esde/Makefile

@@ -42,7 +42,8 @@ CSILENCE= -Wno-bitwise-op-parentheses -Wno-char-subscripts -Wno-error \
 	  -Wno-implicit-function-declaration -Wno-format-security \
 	  -Wno-return-type -Wno-sign-compare -Wno-uninitialized -Wno-unsequenced \
 	  -Wno-implicit-int -Wno-builtin-declaration-mismatch \
-	  -Wno-misleading-indentation -Wno-parentheses -Wno-sequence-point
+	  -Wno-misleading-indentation -Wno-parentheses -Wno-sequence-point \
+	  -Wno-unknown-warning-option
 
 # Common C compiler warning flags
 #

1995/garry/Makefile

@@ -41,7 +41,7 @@ include ../../var.mk
 CSILENCE= -Wno-extra-semi -Wno-fortify-source -Wno-return-type \
 	  -Wno-strict-prototypes -Wno-array-bounds -Wno-misleading-indentation \
 	  -Wno-pedantic -Wno-unused-variable -Wno-implicit-int \
-	  -Wno-stringop-overflow
+	  -Wno-stringop-overflow -Wno-unknown-warning-option
 
 # Common C compiler warning flags
 #

1995/makarios/Makefile

@@ -41,7 +41,7 @@ include ../../var.mk
 CSILENCE= -Wno-error -Wno-implicit-function-declaration -Wno-parentheses \
 	  -Wno-int-conversion -Wno-implicit-int -Wno-return-type \
 	  -Wno-builtin-declaration-mismatch -Wno-missing-parameter-type \
-	  -Wno-deprecated-non-prototype
+	  -Wno-deprecated-non-prototype -Wno-unknown-warning-option
 
 # Common C compiler warning flags
 #

1995/savastio/Makefile

@@ -41,7 +41,7 @@ include ../../var.mk
 CSILENCE= -Wno-empty-body -Wno-format -Wno-incompatible-library-redeclaration \
 	  -Wno-non-literal-null-conversion -Wno-deprecated-non-prototype \
 	  -Wno-strict-prototypes -Wno-implicit-int -Wno-builtin-declaration-mismatch \
-	  -Wno-misleading-indentation -Wno-return-type
+	  -Wno-misleading-indentation -Wno-return-type -Wno-unknown-warning-option
 
 # Common C compiler warning flags
 #

1995/schnitzi/Makefile

@@ -41,7 +41,8 @@ include ../../var.mk
 CSILENCE= -Wno-error -Wno-implicit-function-declaration -Wno-int-conversion \
 	  -Wno-logical-op-parentheses -Wno-deprecated-non-prototype \
 	  -Wno-builtin-declaration-mismatch -Wno-missing-parameter-type \
-          -Wno-parentheses -Wno-return-type -Wno-implicit-int
+          -Wno-parentheses -Wno-return-type -Wno-implicit-int \
+	  -Wno-unknown-warning-option
 
 # Common C compiler warning flags
 #

1995/vanschnitz/Makefile

@@ -40,7 +40,8 @@ include ../../var.mk
 #
 CSILENCE= -Wno-error -Wno-implicit-function-declaration -Wno-extra-tokens \
 	  -Wno-overlength-strings -Wno-strict-prototypes -Wno-implicit-int \
-	  -Wno-builtin-declaration-mismatch -Wno-endif-labels -Wno-return-type
+	  -Wno-builtin-declaration-mismatch -Wno-endif-labels -Wno-return-type \
+	  -Wno-unknown-warning-option
 
 # Common C compiler warning flags
 #