Passing parameter to makefile?

Applications Programming
1

Hi,

How to pass parameter to makefile?
Please let me know if any one knows and also please put an example of makefile with this feature.

thanks,
Manju.

2

Does this help?

http://www.gnu.org/software/make/manual/make.html\#Overriding

3

I am picking up the makefile from Java/C/C++/Fortran Makefile

There is a variable IS_UNIX inside that makefile which differentiates the separators between unix and non-unix platforms.

  ifdef IS_UNIX
    X = :
  else
    X = \;
  endif

To run make on unix platforms you would have to pass the parameter IS_UNIX as

make IS_UNIX=1

Infact, the value need not be 1, but some value. The value depends on if you plan to use the value within the makefile.

4

Thanks guys for all your replies.
I got the solution.

We can pass parameter to makefile by specifying them along with there values in command line.

ex: make PARA1=1 PARA2=ABC.c

This will call makefile with 2 parameters, PARA1 is assigned value "1" and PARA2 is assigned value "ABC.c".
The same name need to be used in makefile to access these varibales ( using $(VAR_NAME) syntax)