On Sat, Feb 19, 2011 at 8:01 PM, ali hagigat <[email protected]> wrote:
> "Variables and functions in all parts of a makefile are expanded when
> read, except for
> in recipes,.."
> Variables are not expanded in recipes?
Yes, variables are expanded in recipes; no, variables are not expanded
in recipes WHEN READ. For example,
$ cat Makefile
var2=before
e12:
echo $(var2)
var2=after
$ make
echo after
after
$
If $(var2) was expanded when the recipe was read, then it would have
been expanded to "before", but it wasn't. It's only expanded later,
when the recipe is *executed*.
You're looking at chapter 6; go back and read chapter 3.7, "How `make'
Reads a Makefile", again.
Philip Guenther
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