use the openwrt lzma options for now

lede-commit: 548de949f392049420a6a1feeef118b30ab8ea8c
Signed-off-by: Imre Kaloz <kaloz@openwrt.org>

lib/decompress.c

@@ -48,6 +48,7 @@ static const struct compress_format compressed_formats[] __initconst = {
 	{ {0x1f, 0x9e}, "gzip", gunzip },
 	{ {0x42, 0x5a}, "bzip2", bunzip2 },
 	{ {0x5d, 0x00}, "lzma", unlzma },
+	{ {0x6d, 0x00}, "lzma-openwrt", unlzma },
 	{ {0xfd, 0x37}, "xz", unxz },
 	{ {0x89, 0x4c}, "lzo", unlzo },
 	{ {0x02, 0x21}, "lz4", unlz4 },

scripts/Makefile.lib

@@ -344,7 +344,7 @@ cmd_bzip2 = (cat $(filter-out FORCE,$^) | \
 
 quiet_cmd_lzma = LZMA    $@
 cmd_lzma = (cat $(filter-out FORCE,$^) | \
-	lzma -9 && $(call size_append, $(filter-out FORCE,$^))) > $@ || \
+	lzma e -d20 -lc1 -lp2 -pb2 -eos -si -so && $(call size_append, $(filter-out FORCE,$^))) > $@ || \
 	(rm -f $@ ; false)
 
 quiet_cmd_lzo = LZO     $@

scripts/gen_initramfs_list.sh

@@ -229,7 +229,7 @@ cpio_list=
 output="/dev/stdout"
 output_file=""
 is_cpio_compressed=
-compr="gzip -n -9 -f"
+compr="gzip -n -9 -f -"
 
 arg="$1"
 case "$arg" in
@@ -245,13 +245,13 @@ case "$arg" in
 		output=${cpio_list}
 		echo "$output_file" | grep -q "\.gz$" \
                 && [ -x "`which gzip 2> /dev/null`" ] \
-                && compr="gzip -n -9 -f"
+                && compr="gzip -n -9 -f -"
 		echo "$output_file" | grep -q "\.bz2$" \
                 && [ -x "`which bzip2 2> /dev/null`" ] \
-                && compr="bzip2 -9 -f"
+                && compr="bzip2 -9 -f -"
 		echo "$output_file" | grep -q "\.lzma$" \
                 && [ -x "`which lzma 2> /dev/null`" ] \
-                && compr="lzma -9 -f"
+                && compr="lzma e -d20 -lc1 -lp2 -pb2 -eos -si -so"
 		echo "$output_file" | grep -q "\.xz$" \
                 && [ -x "`which xz 2> /dev/null`" ] \
                 && compr="xz --check=crc32 --lzma2=dict=1MiB"
@@ -318,7 +318,7 @@ if [ ! -z ${output_file} ]; then
 	if [ "${is_cpio_compressed}" = "compressed" ]; then
 		cat ${cpio_tfile} > ${output_file}
 	else
-		(cat ${cpio_tfile} | ${compr}  - > ${output_file}) \
+		(cat ${cpio_tfile} | ${compr} > ${output_file}) \
 		|| (rm -f ${output_file} ; false)
 	fi
 	[ -z ${cpio_file} ] && rm ${cpio_tfile}