[CMake] Re : Re: Re : Re: How to pass a configuration file to CMake?

[Cedric Doucet]

Hi Petr,

thank you very much for your answer!

Indeed, comment string arguments seem to be mandatory.
I modified my configuration file like this:

set(ENABLE_DOWNLOAD True CACHE BOOL "Automatic installation of third-party libraries")
set(GCC_ROOT "/local/cdoucet/gcc/4.9.2/" CACHE PATH "Root of GCC")

Now, I get the following error message:

CMake Error: The source directory "/local/cdoucet/simol/config.cmake" is a file, not a directory.

I am quite surprised about this message because I thought a file was required to the command 'cmake -C'.

Do you have any idea of what I am doing wrong here?

----- Petr Kmoch <petr.kmoch at gmail.com> a écrit :
>Hi Cedric.

I believe the comment string argument is mandatory in a set(... CACHE), so it should be something like this:

set(ENABLE_DOWNLOAD True CACHE BOOL "Should download be enabled")
set(GCC_ROOT "/local/cdoucet/gcc/4.9.2/" CACHE PATH "Path to root directory of GCC installation")

Petr


On Thu, Jan 21, 2016 at 3:43 PM, Cedric Doucet <cedric.doucet at inria.fr> wrote:


Hello,
I do not manage to pass a configuration file to cmake.

I type 'cmake -C ../config.cmake'

where config.cmake belongs to the parent directory and contains these lines:

set(ENABLE_DOWNLOAD True CACHE BOOL)
set(GCC_ROOT "/local/cdoucet/gcc/4.9.2/" CACHE PATH)

I get the following error message but I don't understand why:

loading initial cache file ../config.cmake
CMake Error at /local/cdoucet/simol/config.cmake:1 (set):
  set given invalid arguments for CACHE mode.


CMake Error at /local/cdoucet/simol/config.cmake:2 (set):
  set given invalid arguments for CACHE mode.


CMake Error: The source directory "/local/cdoucet/simol/config.cmake" is a file, not a directory.


Do you know how to solve this problem?
----- Cedric Doucet <cedric.doucet at inria.fr> a écrit :
>
Hi Peter!
Thank you very much!It seems to be exactly what I want. :)I will try to use it.
Cédric
De: "Petr Kmoch" <petr.kmoch at gmail.com>
À: "Cedric Doucet" <cedric.doucet at inria.fr>
Cc: cmake at cmake.org
Envoyé: Lundi 21 Décembre 2015 13:25:53
Objet: Re: [CMake] How to pass a configuration file to CMake?

Hi Cedric.

I have never used it myself, but I believe you're looking for CMake's command-line option '-C <initial-cache>': https://cmake.org/cmake/help/latest/manual/cmake.1.html

Petr

On Mon, Dec 21, 2015 at 1:12 PM, Cedric Doucet <cedric.doucet at inria.fr> wrote:

Hello,
I would like to know if it's possible to pass a configuration file to CMake.I have to pass a lot of information to CMake and the resulting command line is very long to type.Would it be possible to create a file containing all needed definitions and pass it to CMake?
For exemple, instead of typing
cmake -D CMAKE_BUILD_TYPE=Debug -D CMAKE_INSTALL_PREFIX=/home/me/there -D CMAKE_CXX_COMPILER=/usr/local/gcc/4.9.3/g++
would it be possible to create a file containing
CMAKE_BUILD_TYPE=DebugCMAKE_INSTALL_PREFIX=/home/me/thereCMAKE_CXX_COMPILER=/usr/local/gcc/4.9.3/g++
and pass it to CMake?
Cédric
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