Set make file variable depending on Target

[Debd001]

Hoe to update Variable in target of a makefile:

CC=aCC

all:

<Builds source>

update_cc: 

<Here I want CC="cadvice +wall aCC">

Change_CC: update_cc all

---------------------------------------

In above make, if I call >> make Change_CC, It shuold build with "cadvice +wall aCC". Otherwise alll should be same

[Dennis Handly]

>How to update variable in target of a makefile

I don't think you can, those lines are passed to the shell.

>I want CC="cadvise +wall aCC"

The simplest way to do this is set the variable on the command line:

make CC="cadvise +wall aCC"

[Steven Schweda]

   Are you talking about using what the GNU "make" folks call a
'sub-"make"'?  For example (tested on a Mac, using "GNU Make 3.81", but
I don't think that there's anything exotic or GNU-specific here):

mba$ cat Makefile
def:
        $(CC) $(CFLAGS) -o test test.c

alt:
        @$(MAKE) CFLAGS='-O0 -g'

mba$ rm test
mba$ make
cc  -o test test.c

mba$ rm test
mba$ make alt
cc -O0 -g -o test test.c

   Remove the "@" on the "alt" action line to see what's happening.

   I set CFLAGS, but setting CC should work, too.