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1.2     ! schmonz     1: **Contents**
        !             2: 
        !             3: [[!toc levels=2]]
        !             4: 
        !             5: #   Questions & Answers
        !             6: 
        !             7: ##   How can I get a list of all [[basics/make]] variables that are used by pkgsrc? 
        !             8: 
        !             9: 
        !            10: That's difficult. But you can get a very good approximation by changing to a package directory and running the following command: 
        !            11:     
        !            12:     
        !            13:     make -dv show-var VARNAME=VARNAME \
        !            14:     | sed -n 's,^Global:\([^ ]*\) =.*,\1,p' \
        !            15:     | sed 's,\..*,.*,' \
        !            16:     | sort -u \
        !            17:     | grep ^\[A-Z\] \
        !            18:     | less
        !            19:     
        !            20: 
        !            21: Another possibility is to run bmake show-all. This will list many (but not all) variables. 
        !            22: 
        !            23: If you need more information about a specific variable, run bmake help topic=_VARNAME_ or have a look at [pkglint's variable definition file](http://cvsweb.de.netbsd.org/cgi-bin/cvsweb.cgi/pkgsrc/pkgtools/pkglint/files/makevars.map?rev=HEAD)
        !            24: 
        !            25: 
        !            26: ##   When patching a GNU-style configure script, where should I add changes? 
        !            27: 
        !            28: If you want your changes to override everything else, then look for "ac_config_files=" and put it somewhere before that line. 
        !            29: 
        !            30: ##   I'm going to make incompatible changes to pkgsrc. Where should I document it? 
        !            31: 
        !            32: In the file doc/CHANGES-*. 
        !            33: 
        !            34: ##   What's the difference between ${TEST}, test and [? 
        !            35: 
        !            36: There is practically no difference. All the standard options are supported on all platforms. See also [[pkgsrc/The pkgsrc portability guide#test]]. 
        !            37: 
        !            38: #   See also 
        !            39: 
        !            40:   * [http://www.netbsd.org/Documentation/pkgsrc/devfaq.html](http://www.netbsd.org/Documentation/pkgsrc/devfaq.html)
        !            41: