squid: Update to 4.6

For details see:
http://www.squid-cache.org/Versions/v4/changesets/

The 'configure'-option "--disable-ipv6" was removed, it is no longer necessary.

See:
https://lists.ipfire.org/pipermail/development/2016-April/002046.html

"The --disable-ipv6 build option is now deprecated.
...
Squid-3.5.7 and later will perform IPv6 availability tests on startup in
all builds.

- Where IPv6 is unavailable Squid will continue exactly as it would
have had the build option not been used.

These Squid can have the build option removed now."

The warning message concerning a "BCP 177 violation" while
starting 'squid' can be ignored.

Best,
Matthias

Signed-off-by: Matthias Fischer <matthias.fischer@ipfire.org>
Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>

lfs/squid

@@ -1,7 +1,7 @@
 ###############################################################################
 #                                                                             #
 # IPFire.org - A linux based firewall                                         #
-# Copyright (C) 2007-2018  IPFire Team  <info@ipfire.org>                     #
+# Copyright (C) 2007-2019  IPFire Team  <info@ipfire.org>                     #
 #                                                                             #
 # This program is free software: you can redistribute it and/or modify        #
 # it under the terms of the GNU General Public License as published by        #
@@ -24,7 +24,7 @@
 
 include Config
 
-VER        = 4.5
+VER        = 4.6
 
 THISAPP    = squid-$(VER)
 DL_FILE    = $(THISAPP).tar.xz
@@ -42,7 +42,7 @@ objects = $(DL_FILE)
 
 $(DL_FILE) = $(DL_FROM)/$(DL_FILE)
 
-$(DL_FILE)_MD5 = 8275da5846f9f2243ad2625e5aef2ee0
+$(DL_FILE)_MD5 = e25e7cc37754ad14d8aa368c0c210e54
 
 install : $(TARGET)
 
@@ -72,7 +72,7 @@ $(subst %,%_MD5,$(objects)) :
 $(TARGET) : $(patsubst %,$(DIR_DL)/%,$(objects))
 	@$(PREBUILD)
 	@rm -rf $(DIR_APP) && cd $(DIR_SRC) && tar xaf $(DIR_DL)/$(DL_FILE)
-	cd $(DIR_APP) && patch -Np0 -i $(DIR_SRC)/src/patches/squid/squid-4.5-fix-max-file-descriptors.patch
+	cd $(DIR_APP) && patch -Np0 -i $(DIR_SRC)/src/patches/squid/squid-4.6-fix-max-file-descriptors.patch
 
 	cd $(DIR_APP) && autoreconf -vfi
 	cd $(DIR_APP)/libltdl && autoreconf -vfi
@@ -91,7 +91,6 @@ $(TARGET) : $(patsubst %,$(DIR_DL)/%,$(objects))
 		--disable-kqueue \
 		--disable-esi \
 		--disable-arch-native \
-		--enable-ipv6 \
 		--enable-poll \
 		--enable-ident-lookups \
 		--enable-storeio=aufs,diskd,ufs \