Comments (3)
The first argument of ARGN
is taken as signature
. In the CMake docs several different signatures are described so this is not a separate argument but just the same as the original CMake function.
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@dirk-thomas
Should it be the ARGV
instead of ARGN
that contains the list of all arguments?
In this situation, ARGN
does not contain the named argument signature
.
Please refer to the CMake documentation https://cmake.org/cmake/help/v3.0/command/function.html
Additionally ARGV holds the list of all arguments given to the function and ARGN holds the list of arguments past the last expected argument.
from ament_cmake.
The CMake documentation says:
Additionally ARGV holds the list of all arguments given to the function and ARGN holds the list of arguments past the last expected argument.
ARGN
is intentionally used since the explicitly taken parameter signature
is used to dispatch to the desired function or is passed before ARGN
in case the original install
function is called (see https://github.com/ament/ament_cmake/blob/master/ament_cmake_core/cmake/symlink_install/install.cmake#L24-L40).
I created #144 to document the signature
parameter`.
from ament_cmake.
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