Switch to the C locale before greping for an english text.

# How much KB we want to add to the calculated size for slack space

#GENEXT2_ADDTOROOTSIZE=4096

GENEXT2_ADDTOROOTSIZE=16384

GENEXT2_REALSIZE=$(subst total,, $(shell du $(TARGET_DIR) -s -c -k | grep total )) 

GENEXT2_REALSIZE=$(subst total,, $(shell LANG=C du $(TARGET_DIR) -s -c -k | grep total )) 

GENEXT2_SIZE=$(shell expr $(GENEXT2_REALSIZE) + $(GENEXT2_ADDTOROOTSIZE))

# We currently add about 400 device nodes, so add that into the total

GENEXT2_INODES=$(shell expr $(shell find $(TARGET_DIR) | wc -l) + 400)