Re: Help-make Digest, Vol 76, Issue 7

[xiangfeng shen]

Hi,

 

The macro PROGRAM_template do not expand by first parse when reading the makefile.

So the server_LIBS is not defined at all when calling macro PROGRAM_template.

The $($(1)_LIBS) expand to nothing when called.

regards.

carl shen

 

2009/3/16 <address@hidden>

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Today's Topics:

  1. define issues (Appleton, R. (Rick))


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

Message: 1
Date: Mon, 16 Mar 2009 09:05:10 +0100
From: "Appleton, R. (Rick)" <address@hidden>
Subject: define issues
To: <address@hidden>
Message-ID:
       <address@hidden>
Content-Type: text/plain; charset="iso-8859-1"

I'm having issues using defines in a Makefile.
The following makefile:

=====================
PROGRAMS    = server client

.PHONY: all
all: $(PROGRAMS)

server_LIBS := priv protocol
client_LIBS := protocol

define PROGRAM_template

$(1):
       cc $($(1)_LIBS) -o $$@

endef

$(foreach prog,$(PROGRAMS),$(eval $(call PROGRAM_template,$(prog))))
=====================

generates this output
cc priv protocol -o server
cc protocol -o client

yet the following file
=====================
PROGRAMS    = server client

.PHONY: all
all: $(PROGRAMS)

client_LIBS := protocol

define PROGRAM_template

# The following line has moved inside the define
server_LIBS := priv protocol

$(1):
       cc $($(1)_LIBS) -o $$@

endef

$(foreach prog,$(PROGRAMS),$(eval $(call PROGRAM_template,$(prog))))
=====================

generates this (unexpected) output
cc  -o server
cc protocol -o client

Does anyone have an idea why it might be doing this?

My GNU Make version is 3.80
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End of Help-make Digest, Vol 76, Issue 7
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