alternative for recursive variable in Makefile?

Hi,

I want to append some compiler flags to CFLAGS_LOCAl variable defined in one makefile.
I am trying to append required flags in another makefile like this:
CFALGS_LOCAL = $(CFLAGS_LOCAL) +check=all

but when I make, I get the error:

../../../../rules/target.rules:4: *** Recursive variable `CFLAGS_LOCAL' references itself (eventually). Stop.
*** Error exit code 2

After searching on the net I found out that such thing (Recursive variable) is not possible. What is an alternative to above problem?

Thanks in advance,
Pritam

any problem in using +=

Yes,
Syntax error.

Pritam