diff options
Diffstat (limited to 'doc/make.texi')
| -rw-r--r-- | doc/make.texi | 26 |
1 files changed, 14 insertions, 12 deletions
diff --git a/doc/make.texi b/doc/make.texi index 723e1c79..2fb79b40 100644 --- a/doc/make.texi +++ b/doc/make.texi @@ -4,7 +4,7 @@ @include version.texi @set EDITION 0.71 -@set RCSID $Id: make.texi,v 1.69 2010/11/30 14:48:53 psmith Exp $ +@set RCSID $Id: make.texi,v 1.70 2011/02/21 07:30:12 psmith Exp $ @settitle GNU @code{make} @setchapternewpage odd @@ -1487,11 +1487,11 @@ first (unescaped) variable reference to @var{ONEVAR} is expanded, while the second (escaped) variable reference is simply unescaped, without being recognized as a variable reference. Now during the secondary expansion the first word is expanded again but since it -contains no variable or function references it remains the static -value @file{onefile}, while the second word is now a normal reference -to the variable @var{TWOVAR}, which is expanded to the value -@file{twofile}. The final result is that there are two prerequisites, -@file{onefile} and @file{twofile}. +contains no variable or function references it remains the value +@file{onefile}, while the second word is now a normal reference to the +variable @var{TWOVAR}, which is expanded to the value @file{twofile}. +The final result is that there are two prerequisites, @file{onefile} +and @file{twofile}. Obviously, this is not a very interesting case since the same result could more easily have been achieved simply by having both variables @@ -5846,13 +5846,13 @@ Multiple @var{target} values create a target-specific variable value for each member of the target list individually. The @var{variable-assignment} can be any valid form of assignment; -recursive (@samp{=}), static (@samp{:=}), appending (@samp{+=}), or +recursive (@samp{=}), simple (@samp{:=}), appending (@samp{+=}), or conditional (@samp{?=}). All variables that appear within the @var{variable-assignment} are evaluated within the context of the target: thus, any previously-defined target-specific variable values will be in effect. Note that this variable is actually distinct from any ``global'' value: the two variables do not have to have the same -flavor (recursive vs.@: static). +flavor (recursive vs.@: simple). Target-specific variables have the same priority as any other makefile variable. Variables provided on the command line (and in the @@ -6512,7 +6512,9 @@ be substituted. @cindex arguments of functions @cindex functions, syntax of -A function call resembles a variable reference. It looks like this: +A function call resembles a variable reference. It can appear +anywhere a variable reference can appear, and it is expanded using the +same rules as variable references. A function call looks like this: @example $(@var{function} @var{arguments}) @@ -7344,7 +7346,7 @@ The syntax of the @code{value} function is: $(value @var{variable}) @end example -Note that @var{variable} is the @emph{name} of a variable; not a +Note that @var{variable} is the @emph{name} of a variable, not a @emph{reference} to that variable. Therefore you would not normally use a @samp{$} or parentheses when writing it. (You can, however, use a variable reference in the name if you want the name not to be a @@ -7455,7 +7457,7 @@ The syntax of the @code{origin} function is: $(origin @var{variable}) @end example -Note that @var{variable} is the @emph{name} of a variable to inquire about; +Note that @var{variable} is the @emph{name} of a variable to inquire about, not a @emph{reference} to that variable. Therefore you would not normally use a @samp{$} or parentheses when writing it. (You can, however, use a variable reference in the name if you want the name not to be a constant.) @@ -7566,7 +7568,7 @@ The syntax of the @code{flavor} function is: $(flavor @var{variable}) @end example -Note that @var{variable} is the @emph{name} of a variable to inquire about; +Note that @var{variable} is the @emph{name} of a variable to inquire about, not a @emph{reference} to that variable. Therefore you would not normally use a @samp{$} or parentheses when writing it. (You can, however, use a variable reference in the name if you want the name not to be a constant.) |