[bug #42617] Loaded Object Interface: function call doesn't take variables as parameters

[Bhavesh]

URL:
  <http://savannah.gnu.org/bugs/?42617>

                 Summary: Loaded Object Interface: function call doesn't take
variables as parameters
                 Project: make
            Submitted by: bhavesh
            Submitted on: Wed 25 Jun 2014 07:16:09 PM GMT
                Severity: 3 - Normal
              Item Group: Bug
                  Status: None
                 Privacy: Public
             Assigned to: None
             Open/Closed: Open
         Discussion Lock: Any
       Component Version: 4.0
        Operating System: None
           Fixed Release: None
           Triage Status: None

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Details:

I am trying to call a function (registered with make) from within the
makefile. 

example:
This is the documented way to call the registered function:

$(function_name param1,param2)

This does work properly. 
---------------------------------------------------------------
But when I try to call the function with parameters as variables to avoid
hard-coding the parameters every time:

PARAM := param2

$(function_name  param1,$(PARAM))

This call doesn't work at all. it sends $(PARAM) and $(PARAM2) as parameters
without expanding them. 
This is the my main question, I would like to see how this works with
variables as parameters. 

---------------------------------------------------------------
I also tried calling this function using the "call" directive:

$(call function_name,param1,$(PARAM2)) 

This call to the loaded function works fine. It sends the expansion of
$(PARAM2) as a variable unlike in the previous example.





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