Performing greater-than less-than calculations in a Makefile

Question

I\'m trying to do this in a Makefile:

value = 2.0

if ${greaterthan ${value}, 1.50}
-> execute a rule
elseif ${lessthan ${value}, 0.50}
-> execute a ru         


        

Answer 1

Try this

In this example VER is checked for greater than 4

ifeq ($(shell test $(VER) -gt 4; echo $$?),0)
  IFLAGS += -I$(TOPDIR)/include
  LIBS += -L$(TOPDIR)/libs -lpcap
endif