Re: override target

[Jiongliang Zhang]

Can you try to define an command variable, maybe you can use like this:

define echo-def
    echo "common"
endef

override define echo-def
    echo "common"
    echo "I am override"
endef

all:
    $(echo-def)

On 11 August 2010 15:42, Lynn Lin <address@hidden> wrote:

All,
   is that possible we can override target (rules)? I know we can use
:: to append target with multi rules.However I define a common
makefile which define a target with rules and I want to override it in
one makefile which include that common makefile

for example :
in common makefile:

all:
   echo "common"

in the other makefile which include that common makefile ,I want to
override rules
all:
   echo "I am override"

when we run make all in makefile,it will run this two rules .I only
want to run the override one

Thanks
Lynn

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Best regards！
Thanks
Jiongliang Zhang