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Re: looking for help with auto creating rules with eval hierarchically
From: |
John Graham-Cumming |
Subject: |
Re: looking for help with auto creating rules with eval hierarchically |
Date: |
Thu, 16 Mar 2006 15:55:02 +0100 |
User-agent: |
Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.6) Gecko/20040208 Thunderbird/0.5 Mnenhy/0.6.0.104 |
PATTON, BILLY (SBCSI) wrote:
As the best of my understanding of what you sent, ${BB_${proj}}, the
following should work.
PROJECTS := lde ldg ldm ldf ldw lbf ldb
BB_lde := a
BB_ldg := b c
BB_ldm := d e f
BB_ldf := g h i j
BB_ldw := k l n m o
BB_lbf := p q r s t u
BB_ldb := v w x y z aa ab
.PHONY : all $(addprefix BB_ , ${PROJECTS})
This line will expand to
.PHONY: all BB_ lde BB_ ldg BB_ ldm BB_ ldf BB_ ldw BB_ lbf BB_ ldb
Firstly there's a space after BB_ which I don't think you want and
secondly I'm not sure that you mean that BB_lde (for example) is a
target; isn't it that the things in $(BB_lde) are you targets?
define bb_template
$(1): ; echo $(1)
endef
all : $(addprefix BB_ , ${PROJECTS})
So this line is:
all : BB_ lde BB_ ldg BB_ ldm BB_ ldf BB_ ldw BB_ lbf BB_ ldb
Even if you eliminate the space after the _ and get
all : BB_lde BB_ldg BB_ldm BB_ldf BB_ldw BB_lbf BB_ldb
Is that really what you want?
$(foreach proj,$(PROJECTS), $(eval $(call bb_template,$(BB_$(proj)))))
This ends up calling bb_template on each of $(BB_lde), $(BB_ldg), ...
etc. If you take, for example, $(BB_ldg) that's b c. So it does
$(call bb_template,b c)
which is
b c: ; @echo b c
Which is then $(eval)ed which means that GNU Make ends up defining the
following two rules:
b: ; @echo b c
c: ; @echo b c
Once again I don't think that's what you intended. This came about
because of the elimination of my second foreach loop.
> But it doesn't. I get missing seperator pointing to the line after all:
Probably because you've got a blank link between the all: line and the
$(foreach ...) line.
John.
--
John Graham-Cumming
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- RE: looking for help with auto creating rules with eval hierarchically, PATTON, BILLY \(SBCSI\), 2006/03/16
- RE: looking for help with auto creating rules with eval hierarchically, PATTON, BILLY \(SBCSI\), 2006/03/16
- RE: looking for help with auto creating rules with eval hierarchically, PATTON, BILLY \(SBCSI\), 2006/03/16
- RE: looking for help with auto creating rules with eval hierarchically, PATTON, BILLY \(SBCSI\), 2006/03/16
- Re: looking for help with auto creating rules with eval hierarchically,
John Graham-Cumming <=
- RE: looking for help with auto creating rules with eval hierarchically, PATTON, BILLY \(SBCSI\), 2006/03/16