[cmake-developers] generator expressions with variable
hi all,
i'm trying to obtain the include paths from a target via a generator
expression, which is adapted from the help file:
help:
$$BOOL:$TARGET_PROPERTY:INCLUDE_DIRECTORIES:-I$JOIN:$TARGET_PROPERTY:INCLUDE_DIRECTORIES,
-I
i adapted it to obtain the value from a target, which is passed as a
function argument:
$$BOOL:$TARGET_PROPERTY:${TARGET},INCLUDE_DIRECTORIES:-I$JOIN:$TARGET_PROPERTY:${TARGET},INCLUDE_DIRECTORIES,
-I
however evaluating the expression results in this command string:
$1:-I$JOIN:$ -I
is this a bug or a feature?
thanks a lot,
tim
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Re: [cmake-developers] generator expressions with variable
On Sat, Apr 19, 2014 at 12:08:42 +0200, Tim Blechmann wrote:
$$BOOL:$TARGET_PROPERTY:${TARGET},INCLUDE_DIRECTORIES:-I$JOIN:$TARGET_PROPERTY:${TARGET},INCLUDE_DIRECTORIES,
-I
Does it work without the variable in there. (By the time the generator
expression evaluator gets the string, it should be expanded.)
however evaluating the expression results in this command string:
$1:-I$JOIN:$ -I
Should that '$' be ','? Where did your literal ',' go from the above
genex?
--Ben
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Re: [cmake-developers] generator expressions with variable
$$BOOL:$TARGET_PROPERTY:${TARGET},INCLUDE_DIRECTORIES:-I$JOIN:$TARGET_PROPERTY:${TARGET},INCLUDE_DIRECTORIES,
-I
Does it work without the variable in there. (By the time the generator
expression evaluator gets the string, it should be expanded.)
however evaluating the expression results in this command string:
$1:-I$JOIN:$ -I
Should that '$' be ','? Where did your literal ',' go from the above
genex?
hmm, i've updated cmake to the current master branch (the other one was
a few days old). now the expression evaluates to (if the properties are
a;b;c):
$1:-I $JOIN:a;b;c , -I
though it does not matter, if the target is passed via variable or directly.
any idea?
thnx,
tim
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CMake Consulting: http://cmake.org/cmake/help/consulting.html
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