libfslcodec: Use self-extractible helper

[Thomas: remove unneeded comment.]

Signed-off-by: Jérôme Pouiller <jezz@sysmic.org>
Reviewed-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/libfslcodec/libfslcodec.mk

@@ -7,30 +7,14 @@
 LIBFSLCODEC_VERSION = 3.0.11
 LIBFSLCODEC_SITE = $(FREESCALE_IMX_SITE)
 LIBFSLCODEC_SOURCE = libfslcodec-$(LIBFSLCODEC_VERSION).bin
-LIBFSLCODEC_LICENSE = Freescale Semiconductor Software License Agreement, BSD-3c (flac, ogg headers)
-LIBFSLCODEC_LICENSE_FILES = EULA EULA.txt
-# This is a legal minefield: the EULA in the bin file specifies that
-# the Board Support Package includes software and hardware (sic!)
-# for which a separate license is needed...
-LIBFSLCODEC_REDISTRIBUTE = NO
-
 LIBFSLCODEC_INSTALL_STAGING = YES
 
-# The archive is a shell-self-extractor of a bzipped tar. It happens
-# to extract in the correct directory (libfslcodec-x.y.z)
-# The --force makes sure it doesn't fail if the source dir already exists.
-# The --auto-accept skips the license check - not needed for us
-# because we have legal-info.
-# Since the EULA in the bin file differs from the one in the tar file,
-# extract the one from the bin file as well.
+LIBFSLCODEC_LICENSE = Freescale Semiconductor Software License Agreement, BSD-3c (flac, ogg headers)
+LIBFSLCODEC_LICENSE_FILES = EULA EULA.txt
+LIBFSLCODEC_REDISTRIBUTE = NO
+
 define LIBFSLCODEC_EXTRACT_CMDS
-	awk 'BEGIN      { start=0; } \
-	     /^EOEULA/  { start = 0; } \
-	                { if (start) print; } \
-	     /<<EOEULA/ { start=1; }'\
-	    $(DL_DIR)/$(LIBFSLCODEC_SOURCE) > $(@D)/EULA
-	cd $(BUILD_DIR); \
-	sh $(DL_DIR)/$(LIBFSLCODEC_SOURCE) --force --auto-accept
+	$(call FREESCALE_IMX_EXTRACT_HELPER,$(DL_DIR)/$(LIBFSLCODEC_SOURCE))
 endef
 
 # FIXME The Makefile installs both the arm9 and arm11 versions of the