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Re: variables defined in the makefile are ...

From: 積丹尼 Dan Jacobson
Subject: Re: variables defined in the makefile are ...
Date: Mon, 04 Jan 2016 15:43:29 +0800

>>>>> "PS" == Paul Smith <address@hidden> writes:

PS> The right way to do this, as with any other variable you want to assign
PS> to itself (PATH is not special), is to use simply-expanded variables
PS> (:=)

PS>   PATH := $(PATH):../v4

Ah so on (info "(make) Appending")

   Using '+=' is similar to:

     objects = main.o foo.o bar.o utils.o
     objects := $(objects) another.o

... but offers no way to get out the additional space, whereas
PATH := $(PATH):../v4
does (perfect place to add this as an example.)

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