Makefile.package.in: Add BR2_XZCAT for LZMA compression type

Signed-off-by: Allan W. Nielsen <a@awn.dk>
Acked-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>

Config.in

@@ -52,6 +52,13 @@ config BR2_BZCAT
 	  Default is "bzcat"
 	  Other possible values include "bunzip2 -c" or "bzip2 -d -c".
 
+config BR2_XZCAT
+	string "xzcat command"
+	default "xzcat"
+	help
+	  Command to be used to extract a xz'ed file to stdout.
+	  Default is "xzcat"
+
 config BR2_TAR_OPTIONS
 	string "Tar options"
 	default ""

Makefile

@@ -261,6 +261,7 @@ KERNEL_ARCH:=$(shell echo "$(ARCH)" | sed -e "s/-.*//" \
 
 ZCAT:=$(call qstrip,$(BR2_ZCAT))
 BZCAT:=$(call qstrip,$(BR2_BZCAT))
+XZCAT:=$(call qstrip,$(BR2_XZCAT))
 TAR_OPTIONS=$(call qstrip,$(BR2_TAR_OPTIONS)) -xf
 
 GNU_TARGET_SUFFIX:=-$(call qstrip,$(BR2_GNU_TARGET_SUFFIX))

package/Makefile.package.in

@@ -61,6 +61,7 @@ INFLATE.gz   = $(ZCAT)
 INFLATE.tbz  = $(BZCAT)
 INFLATE.tbz2 = $(BZCAT)
 INFLATE.tgz  = $(ZCAT)
+INFLATE.xz   = $(XZCAT)
 INFLATE.tar  = cat
 
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