o Set -Wno-compound-token-split-by-macro needed to get things

  building up with clang > 11.

o Unify common code in the perl modules to fix db_perlvdb
  as well with clang > 11.

lib/modules.mk/perl.mk

@@ -0,0 +1,33 @@
+# define it (or export this) to the dir where xsubpp is on your system (if
+# not on the default path.
+#PERLBINDIR=
+
+LIBS=
+
+ifeq ($(CC_NAME), gcc)
+	DEFS+=-Wno-unused -Wno-redundant-decls
+endif
+ifeq ($(CC_NAME), clang)
+	DEFS+=-Wno-unused -Wno-redundant-decls $(shell test `${CC} -dumpversion | sed 's|[.].*||'` -gt 11 && echo -Wno-compound-token-split-by-macro)
+endif
+
+ifeq ($(PERLLDOPTS),)
+	LIBS+=$(shell perl -MExtUtils::Embed -e ldopts)
+else
+	LIBS+=$(PERLLDOPTS)
+endif
+
+ifeq ($(PERLCCOPTS),)
+	DEFS+=$(shell perl -MExtUtils::Embed -e ccopts)
+else
+	DEFS+=$(PERLCCOPTS)
+endif
+
+# if perl requires _FORTIFY_SOURCE, we need to enable optimizations
+ifneq (,$(findstring -D_FORTIFY_SOURCE,$(DEFS)))
+	DEFS+=-O2
+endif
+
+auto_gen=
+
+include ../../Makefile.modules

modules/db_perlvdb/Makefile

@@ -3,21 +3,6 @@
 # WARNING: do not run this directly, it should be run by the master Makefile
 
 include ../../Makefile.defs
-auto_gen=
 NAME=db_perlvdb.so
 
-ifeq ($(CC_NAME), gcc)
-	DEFS+=-Wno-unused -Wno-redundant-decls
-endif
-
-
-LIBS=$(shell perl -MExtUtils::Embed -e ldopts)
-DEFS+=$(shell perl -MExtUtils::Embed -e ccopts)
-
-# if perl requires _FORTIFY_SOURCE, we need to enable optimizations
-ifneq (,$(findstring -D_FORTIFY_SOURCE,$(DEFS)))
-	DEFS+=-O2
-endif
-
-
-include ../../Makefile.modules
+include ../../lib/modules.mk/perl.mk

modules/perl/Makefile

@@ -1,44 +1,12 @@
-# $Id$
-#
 # perl module makefile
 #
 # 
 # WARNING: do not run this directly, it should be run by the master Makefile
 
 include ../../Makefile.defs
-auto_gen=
 NAME=perl.so
-LIBS=
-
-# define it (or export this) to the dir where xsubpp is on your system (if
-# not on the default path.
-#PERLBINDIR=
-
-ifeq ($(CC_NAME), gcc)
-	DEFS+=-Wno-unused -Wno-redundant-decls
-endif
-ifeq ($(CC_NAME), clang)
-	DEFS+=-Wno-unused -Wno-redundant-decls
-endif
-
-ifeq ($(PERLLDOPTS),)
-	LIBS+=$(shell perl -MExtUtils::Embed -e ldopts)
-else
-	LIBS+=$(PERLLDOPTS)
-endif
-
-ifeq ($(PERLCCOPTS),)
-	DEFS+=$(shell perl -MExtUtils::Embed -e ccopts)
-else
-	DEFS+=$(PERLCCOPTS)
-endif
-
-# if perl requires _FORTIFY_SOURCE, we need to enable optimizations
-ifneq (,$(findstring -D_FORTIFY_SOURCE,$(DEFS)))
-	DEFS+=-O2
-endif
 
-include ../../Makefile.modules
+include ../../lib/modules.mk/perl.mk
 
 PODFILES=opensipsxs.xs
 PODFILES+=$(shell find lib/perl -name *.pm)