FW: automatic dependency generation

[Buonopane, Robert]

Paul:

I found your article:

http://make.paulandlesley.org/autodep.html

Take care

Bob

 

From: Buonopane, Robert
Sent: Wednesday, May 19, 2010 11:48 AM
To: 'address@hidden'
Subject: FW: automatic dependency generation

 

Looks like reversing the logic works:

 

clean : TARGCLEAN = 1

 

ifndef TARGCLEAN

    -include $(HDRDEPS)

endif

 

From: Buonopane, Robert
Sent: Wednesday, May 19, 2010 11:25 AM
To: 'address@hidden'
Subject: automatic dependency generation

 

Hi Paul:

How’s it going?

 

Question: (gmake 3.80)

I am using :

 

HDRDEPS = $(addprefix $(OUTPUTDIR)/,$(SRCS:.c=.d))

 

CLEANTARGETS = $(LNDEPS) $(LNTARGET)  $(HDRDEPS)

 

I only want to run the include directive if the goal is ‘all’ so I do this.

Is there a better way?

 

all : TARGALL = 1

 

ifdef TARGALL

    -include $(HDRDEPS)

endif

 

Here’s the rule:

 

$(OUTPUTDIR)/%.d: %.c

        @set -e; if [ -d $(OUTPUTDIR) ]; then rm -f $@; \

        else $(MKDIR) $(MKDIRFLAGS) $(OUTPUTDIR); fi; \

        $(CPREPROC) -MM $(CPPFLAGS) $(ALLDEFS) $(ENDIAN) $(ALLINCS) $< > address@hidden; \

        sed 's,\($*\)\.o[ :]*,\1.o $@ : ,g' < address@hidden > $@; \

        rm -f address@hidden

 

The problem is that the .d files are removed when the include directive is in that ifdef – I assume because TARGALL is a target specific var.

I don’t want the files removed.

 

Is there a better way to get the ‘include directive’ to only run if the goal is ‘all’?

 

Thanks

Bob