Comment 1 for bug 1076450

From http://theory.uwinnipeg.ca/localfiles/infofiles/make/make_121.html :

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`warning: overriding commands for target `xxx''
`warning: ignoring old commands for target `xxx''
    GNU make allows commands to be specified only once per target (except for double-colon rules). If you give commands for a target which already has been defined to have commands, this warning is issued and the second set of commands will overwrite the first set.
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I.e., GNU make doesn't appreciate such usage. However (http://www.gnu.org/software/make/manual/make.html#Multiple-Rules): "As a special case, if the file's name begins with a dot, no error message is printed." So, that would be easy way to fix that issue.