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Minor editorial changes.

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Roland McGrath 1988-07-10 17:52:55 +00:00
parent 2153102725
commit db3c60d235
1 changed files with 12 additions and 10 deletions
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@ -2092,6 +2092,12 @@ sets @samp{bar} to @samp{a.c b.c c.c}. @xref{Setting}.
@cindex recursive variable reference @cindex recursive variable reference
@cindex variable reference, recursive @cindex variable reference, recursive
Recursive variable references are a complicated concept needed only for
very complex makefile programming. You need not worry about them in
general, except to know that making a variable with a dollar sign in its
name might have strange results. However, if you are the worrisome type or
are actually interested in what they do, read on.
Variables may be referenced inside a variable reference. This is called Variables may be referenced inside a variable reference. This is called
a @dfn{recursive variable reference}. For example, a @dfn{recursive variable reference}. For example,
@ -2209,13 +2215,9 @@ function. This is an implementation restriction which may be removed in
the future if the need arises, but this is not likely since there are not the future if the need arises, but this is not likely since there are not
really any two functions you would want to give the same arguments.@refill really any two functions you would want to give the same arguments.@refill
Recursive variable references are a complicated concept needed only for Note that @dfn{recursive variable references} are quite different from
very complex makefile programming. You need not worry about them in @dfn{recursively expanded variables} (@pxref{Flavors}), though both are
general, except to know that making a variable with a dollar sign in its used together in complex ways when doing makefile programming.@refill
name might have strange results. Note also that @dfn{recursive variable
references} are quite different from @dfn{recursive variables}
(@pxref{Flavors}), though both are used together in complex ways when
doing makefile programming.@refill
@node Values, Flavors, Reference, Variables @node Values, Flavors, Reference, Variables
@section How Variables Get Their Values @section How Variables Get Their Values
@ -4778,9 +4780,9 @@ $(targets): %: %.o lib.a
In System V and 4.3 BSD @code{make}, files found by @code{VPATH} search In System V and 4.3 BSD @code{make}, files found by @code{VPATH} search
(@pxref{Directory Search}) have their names changed inside command strings. (@pxref{Directory Search}) have their names changed inside command strings.
We feel it is much cleaner to always use automatic variables and thus We feel it is much cleaner to always use automatic variables and thus
obviate the need for this feature. However, this feature may be obviate the need for this feature. We are still debating whether to
implemented in the near future for the sake of compatibility. (In fact, it implement this for the sake of compatibility or to leave it out to avoid
may be implemented before anyone but the author reads this paragraph.) such terrible ugliness.@refill
@end itemize @end itemize
@node Concept Index, Name Index, Missing, Top @node Concept Index, Name Index, Missing, Top