[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
RE: makefile:71: *** Recursive variable `LIBS' references itself (eventu
RE: makefile:71: *** Recursive variable `LIBS' references itself (eventually). Stop
Wed, 29 Oct 2003 09:12:37 +0900
There are two types of assignments.
LIBS = file.a
Result in late evaluation. What is to the right of '=' is evaluated only
when LIBS is referenced. With late evaluation a variable cannot
reference itself - that the problem you see.
Late evaluation is required when for example using the following:
VAR = $@
What to realise is that the value of $@ differ with the context where the
variable is used - therefore late evaluation is required.
But most often this is not the case, so I generally prefer the second type
of assignment in my makefiles.
LIBS := file.a
Result in early evaluation. Here LIBS is immediately assigned the value of
file.a. Use this type of assignment and your problem is solved.
OK, thank you.
I will try it !