Great, thanks a lot Rolf & Michael
Rolf Eike Beer a écrit :
Hello everbody,
I would like to understand a bit more one feature related to
CMAKE_INSTALL_PREFIX initialization.
When reading the documentation, it is specified that this variable
contains the directory that will be pre-pended to all install
directories and that it should be defaulted to C:/Program Files on
Windows. However, in my current build the variable is not defaulted to
C:/Program Files but to C:/Program Files/libcrysfml where "crysfml " is
the name of my base project.
This unexpected feature (at least to my understanding !) leads me to my
second question.
I would like to get rid of the "crysfml " subdirectory in the value of
CMAKE_INSTALL_PREFIX. I could obvioulsy
use:
get_filename_component(MY_CMAKE_INSTALL_PREFIX
${CMAKE_INSTALL_PREFIX} PATH)
but this would fail if CMAKE_INSTALL_PREFIX is set on the cmake command
line by the user because, in such case, the installation will not be
done in the directory that he provided but in its parent directory.
Rather counter-intuitive.
What I would need is a mechanism to detect whether the
CMAKE_INSTALL_PREFIX has been set or not by the user on the
command-line. If so, I take directly the values he provided, and if not
so, I take the parent directory of the default value.
Is that possible ?
if (CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT)
...
endif ()
Eike
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Eric Pellegrini
Calcul Scientifique
Institut Laue-Langevin
Grenoble, France
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