devtools/Makefile

@@ -41,8 +41,8 @@ LATEST    := $(shell echo "$(RELEASES)" | cut -d ' ' -f1)
 PREVIOUS   := $(shell echo $(RELEASES) | cut -d ' ' -f2)
 
 ifneq "$(LATEST)" "$(PREVIOUS)"
-	LINEEND   := $(shell lineend=`grep '^$(BLEND)' debian/changelog -n | sed -n 2p | cut -d ':' -f1`; echo "$$lineend - 3" | bc)
-	LINESTART  := $(shell linestart=`grep "* start of automatic changelog entry *" debian/changelog -n | head -1 | awk '{print $$1}' | tr -d ':'`; if [ -z "$$linestart" ]; then echo "0"; else echo "$$linestart - 1" | bc; fi)
+	LINEEND   := $(shell lineend=`grep '^$(BLEND)' debian/changelog -n | sed -n 2p | cut -d ':' -f1`; echo "$$((lineend - 3))")
+	LINESTART  := $(shell linestart=`grep "* start of automatic changelog entry *" debian/changelog -n | head -1 | awk '{print $$1}' | tr -d ':'`; if [ -z "$$linestart" ]; then echo "0"; else echo "$$((linestart - 1))"; fi)
 
 	ISGREATER := $(shell expr $(LINESTART) \> $(LINEEND))