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Feature request

From: Odne Hellebø
Subject: Feature request
Date: Sun, 04 Mar 2012 03:30:10 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:10.0.2) Gecko/20120217 Thunderbird/10.0.2


I know this probably isn't the right place to ask for a new feature, but I couldn't find any decent places to do it, so here goes. I recently started using make for a project in java and I know that Java isn't supported by default, but I do believe that this is something that will benefit other languages as well.

I have A.java which uses B.java and thus the rule becomes this <A.class : A.java B.class>, but I don't need to recompile A.java if B.class is changed, I just need B.class to be there with the features I use in A.class. So what I suggest is that we seperate the prerequisites and the "file uses these things" like <A.class : A.java £ B.class>. Where everything after £ is just checked to see if it exists. If it doesn't then make can go to the <B.class> rule and make it or if it does exist make still goes to that rule and updates the file if need be and then goes back to <A.class> rule and and only checks the A.java file to see if it needs updating.

The closest feature to solving this problem is the make -t from what i read. Which changes all the timestamps to the current, but it would be easier to just say that we only need this file to be there. Also slightly less errorprone in the case where you have changed multiple files in your project and then suddenly changed the a B.java file and you decide to type <make -t>.

This would also make it faster to compile.



P.S. Anything I can do to help, like small things, would be more than happy to.

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