Re: Re: Re: customizing implicit rules

[Chen Jun (陈军)]

Hello, Aditya Kher, 

 

　　Oh, please! Is that just a typo? After changing objects to $(objects), it does not appear to be a meaningful makefile. Run it yourself, it will output somthing like

make: *** No rule to make target `/xxx/Your-current-dir/yyy.o', needed by `all'.  Stop.

That is, it(run by make) does not output something like

g++ -o /home/usr/boo/../source_dir/foo.o ../source_dir/foo.cpp

Please be kind enough to provide us a runnable example that really describe what you've encountered and what you would expect it to be.

 

BTW: I'm using make 3.81 .

 

======== 2007-10-23 17:41:57 You wrote: ========

 

sorry. there was a typo.

it should be

 

all: $(objects)

 

cheers!

 

On 10/23/07, Chen Jun (陈军) <address@hidden> wrote:

Hello, Aditya Kher, 

 

It's something odd in your reply. Could you please present a complete makefile and show its output?

 

At least, the makefile snippet you gave below was not a reasonable makefile -- at least, no rule to make the target "objects".

 

CPP_DIR:=/home/user/source_dir
CPP=g++
objects:=$(patsubst ${CPP_DIR}/%.cpp,${CURDIR}/%.o,$(wildcard ${CPP_DIR}/*.cpp))

all: objects 

 

======== 2007-10-23 16:55:49 You wrote: ========

 

[[CC the Help-make]]

 

On 10/23/07, Aditya Kher  <address@hidden > wrote:

> Nope. that doesnt work

> consider my setup like this:

>

> /home/usr/boo/Makefile:

> ------

> CPP_DIR:=/home/user/source_dir

> CPP=g++

> objects:=$(patsubst ${CPP_DIR}/%.cpp,${CURDIR}/%.o,$(wildcard

> ${CPP_DIR}/*.cpp))

>

> all:objects

>

> -------

> I get

> %pwd

> /home/usr/boo

> %gmake -n

> g++ -o /home/usr/boo/../source_dir/foo.o ../source_dir/foo.cpp

>

> while without $CURDIR in the variable definition, I get

> %gmake -n

> g++ -o /home/usr/source_dir/foo.o ../source_dir/foo.cpp

>

> so its essentially the same regardless of use of $CURDIR.

> -aditya

>

>

> On 10/23/07, Chen Jun (陈军)  <address@hidden > wrote:

>  >

>  >

>  >

>  >

>  > Hello, Aditya Kher,

>  >  objects:=$(patsubst ${CPP_DIR}/%.cpp,${CURDIR}/%.o,$(wildcard  ${CPP_DIR}/*.cpp))

>  >

>  > Is that what you want?

>  >

>  > $(CURDIR) is a make internal variable representing current working directory.

>  >

>

 

 

-- 

Aditya Kher

http://kher.org

= = = = = = = = = = = = = = = = = = = = = =

Best Regards

　　　　　　　　　　　　　　Chen Jun (陈军)

　　　　　　　　　　　　　　address@hidden

　　　　　　　　　　　　　　　2007-10-23

--
Aditya Kher
http://kher.org

= = = = = = = = = = = = = = = = = = = = = =

Best Regards

　　　　　　　　　　　　　　Chen Jun (陈军)

　　　　　　　　　　　　　　address@hidden

　　　　　　　　　　　　　　　2007-10-24