Re: Makefile : %.class: %.java

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#3769

From: Jonathan Kamens
Date: Sun, 03 Jun 2001 01:38

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In article <sa8snhiepqq.fsf_-_@sun_tong_001.personal.yahoo.com>,
 * Tong * <sun_tong_001@yahoo.com> writes:
>Here is an example of explicit rule:
>
>${CLASSFDIR}/knn/DbKnn.class: knn/DbKnn.java
>        javac -d ${CLASSFDIR} knn/DbKnn.java
>
>${CLASSFDIR}/knn/Knn.class: knn/Knn.java
>        javac -d ${CLASSFDIR} knn/Knn.java
>
>Any idea that can make 'make' work this way? 

I am not sure what the problem is.  The rule I already gave you should
work just fine:

${CLASSFDIR}/%.class: %.java
	javac -d ${CLASSFDIR} $<

Note that there's nothing special about slashes as far as '%' is
concerned -- it's a generic wildcard.  In the examples you gave above,
it would match "knn/DbKnn" the first time or "knn/Knn" the second time.

Perhaps there's something wrong with your example?

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From: jik@kamens.brookline.ma.us (Jonathan Kamens)
Newsgroups: comp.unix.programmer,gnu.utils.help
Subject: Re: Makefile : %.class: %.java
Date: 3 Jun 2001 01:38:10 GMT
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