squashfs: bump to version 4.3

Also add optional lz4 support.

Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/squashfs/Config.in

@@ -18,6 +18,12 @@ config BR2_PACKAGE_SQUASHFS_GZIP
 	help
 	  Support GZIP compression algorithm
 
+config BR2_PACKAGE_SQUASHFS_LZ4
+	bool "lz4 support"
+	select BR2_PACKAGE_LZ4
+	help
+	  Support LZ4 compression algorithm
+
 config BR2_PACKAGE_SQUASHFS_LZMA
 	bool "lzma support"
 	select BR2_PACKAGE_XZ

package/squashfs/squashfs-4.2-no-gzip-fix.patch

@@ -1,26 +0,0 @@
-[PATCH] squashfs-tools: unbreak builds without gzip support
-
-The initialization of gzip_comp_ops if gzip support is disabled is
-missing 2 null pointers, causing the id element to be initialized to 0
-rather than ZLIB_COMPRESSION, which breaks all the compressor functions
-as they loop until finding the correct element or id = 0.
-
-Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
----
- squashfs-tools/compressor.c |    3 ++-
- 1 file changed, 2 insertions(+), 1 deletion(-)
-
-Index: squashfs4.2/squashfs-tools/compressor.c
-===================================================================
---- squashfs4.2.orig/squashfs-tools/compressor.c
-+++ squashfs4.2/squashfs-tools/compressor.c
-@@ -27,7 +27,8 @@
- 
- #ifndef GZIP_SUPPORT
- static struct compressor gzip_comp_ops =  {
--	NULL, NULL, NULL, NULL, NULL, NULL, ZLIB_COMPRESSION, "gzip", 0
-+	NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, ZLIB_COMPRESSION,
-+	"gzip", 0
- };
- #else
- extern struct compressor gzip_comp_ops;

package/squashfs/squashfs.mk

@@ -4,13 +4,20 @@
 #
 ################################################################################
 
-SQUASHFS_VERSION = 4.2
+SQUASHFS_VERSION = 4.3
 SQUASHFS_SOURCE = squashfs$(SQUASHFS_VERSION).tar.gz
 SQUASHFS_SITE = http://downloads.sourceforge.net/project/squashfs/squashfs/squashfs$(SQUASHFS_VERSION)
 
 # no libattr in BR
 SQUASHFS_MAKE_ARGS = XATTR_SUPPORT=0
 
+ifeq ($(BR2_PACKAGE_SQUASHFS_LZ4),y)
+SQUASHFS_DEPENDENCIES += lz4
+SQUASHFS_MAKE_ARGS += LZ4_SUPPORT=1 COMP_DEFAULT=lz4
+else
+SQUASHFS_MAKE_ARGS += LZ4_SUPPORT=0
+endif
+
 ifeq ($(BR2_PACKAGE_SQUASHFS_LZMA),y)
 SQUASHFS_DEPENDENCIES += xz
 SQUASHFS_MAKE_ARGS += LZMA_XZ_SUPPORT=1 COMP_DEFAULT=lzma
@@ -39,14 +46,14 @@ else
 SQUASHFS_MAKE_ARGS += GZIP_SUPPORT=0
 endif
 
-
-HOST_SQUASHFS_DEPENDENCIES = host-zlib host-lzo host-xz
+HOST_SQUASHFS_DEPENDENCIES = host-zlib host-lz4 host-lzo host-xz
 
 # no libattr/xz in BR
 HOST_SQUASHFS_MAKE_ARGS = \
 	XATTR_SUPPORT=0 \
 	XZ_SUPPORT=1    \
 	GZIP_SUPPORT=1  \
+	LZ4_SUPPORT=1	\
 	LZO_SUPPORT=1	\
 	LZMA_XZ_SUPPORT=1