Makefile with a function in dependency side

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2 total messages Started by Walter Encinas Mon, 23 Sep 2002 17:34

#3727

Author: Walter Encinas
Date: Mon, 23 Sep 2002 17:34

22 lines
1377 bytes

Hi all

	I need to build a makefile with a make rule that uses a function
result as a dependency. This function F must receive target as a
parameter, such as:

%.log	: $(call F,%)

or

%.log	: $(call F,$@)

or even

%.log	: $(call F,$$@)

	None of these tries worked. I am using GNU Make version 3.78.1. Any
suggestion?

	Thanks in advance

				Walter

Re: Makefile with a function in dependency side

#3728

Author: Paul D. Smith
Date: Mon, 23 Sep 2002 17:54

26 lines
1995 bytes

%% wsoto@uol.com.br (Walter Encinas) writes:

  we> I need to build a makefile with a make rule that uses a function
  we> result as a dependency.

You can't.


Your only option is to use GNU make's auto-re-exec feature to generate a
dynamic makefile: write a rule that generates a makefile containing the
information you need (so you have the full power of the shell to create
it).  Then include it:

  dynamic.mk: Makefile
          @rm -f $@
          @for f in $(TARGETS); do \
            echo "$$f : \$$($$f_SRCS)" >> $@; \
           done

  include dynamic.mk

-- 
-------------------------------------------------------------------------------
 Paul D. Smith <psmith@gnu.org>          Find some GNU make tips at:
 http://www.gnu.org                      http://make.paulandlesley.org
 "Please remain calm...I may be mad, but I am a professional." --Mad Scientist

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