In some circumstances config file is installed as config.new...

--- privoxy-3.0.33-stable/GNUmakefile.in.orig	2021-12-08 12:05:05.000000000 +0000
+++ privoxy-3.0.33-stable/GNUmakefile.in	2022-03-31 21:35:18.211582929 +0000
@@ -282,7 +282,7 @@
 # Add your flags here
 OTHER_CFLAGS =
 
-CFLAGS = @CFLAGS@ @CPPFLAGS@ $(OTHER_CFLAGS) $(SPECIAL_CFLAGS) -Wall
+CFLAGS = @CFLAGS@ @CPPFLAGS@ $(OTHER_CFLAGS) $(SPECIAL_CFLAGS)
 
 LDFLAGS = @LDFLAGS@ $(DEBUG_CFLAGS) $(SPECIAL_CFLAGS)
 
@@ -943,7 +943,7 @@
 	fi ;\
 	$(ECHO) Installing configuration files to $(DESTDIR)$(CONF_DEST);\
 	for i in $(CONFIGS); do \
-		if [ "$$i" = "default.action" ] || [ "$$i" = "default.filter" ] ; then \
+		if [ "$$i" = "default.action" ] || [ "$$i" = "default.filter" ] || [ "$$i" = "config" ]; then \
 			$(RM) $(DESTDIR)$(CONF_DEST)/$$i ;\
 			$(ECHO) Installing fresh $$i;\
 			$(INSTALL) $$INSTALL_CONF $$i $(DESTDIR)$(CONF_DEST) || exit 1;\
diff -ru privoxy-3.0.8-stable-orig/config privoxy-3.0.8-stable/config
--- privoxy-3.0.23-stable/config.~1~	2015-01-24 19:44:20.000000000 +0300
+++ privoxy-3.0.23-stable/config	2015-08-06 20:53:29.180676722 +0300
@@ -260,7 +260,7 @@
 #
 #      No trailing "/", please.
 #
-confdir .
+confdir /etc/privoxy
 #
 #  2.2. templdir
 #  ==============
@@ -345,7 +345,7 @@
 #
 #      No trailing "/", please.
 #
-logdir .
+logdir /var/log/privoxy
 #
 #  2.5. actionsfile
 #  =================
@@ -478,7 +478,7 @@
 #      require additional software to do it. For details, please
 #      refer to the documentation for your operating system.
 #
-logfile logfile
+logfile privoxy.log
 #
 #  2.8. trustfile
 #  ===============