[CMake] change add_executable to add_library leads to an error
Cedric Doucet
cedric.doucet at inria.fr
Wed Dec 23 08:54:43 EST 2015
Hi Petr!
Yes, it helps me a lot!
I have tried to apply your approach and this is exactly what I want.
Thank you! :)
Cédric
----- Mail original -----
> De: "Petr Kmoch" <petr.kmoch at gmail.com>
> À: "Cedric Doucet" <cedric.doucet at inria.fr>
> Cc: cmake at cmake.org
> Envoyé: Mercredi 23 Décembre 2015 14:41:55
> Objet: Re: [CMake] change add_executable to add_library leads to an error
> Hi Cedric.
> add_custom_target() does not work the way you think it does. The arguments
> given after the target name are commands which the custom target will
> execute. So what your custom target `statphys` does is execute a program
> named `simol-statphys`. When `simol-statphys` was the name of an executable
> target, CMake figured out a dependency based on this and arranged it so that
> `simol-statphys` is built first and then executed.
> However, when `simol-statphys` is a library target, it does not receive this
> special treatment; and why would it, since you cannot execute a library.
> Therefore, it simply tries to execute a program named `simol-statphys` and,
> expectedly, fails.
> If I understand your intention with the custom target correctly, you want to
> have a shorthand alias for the target in the makefile. The correct syntax to
> achieve that would be:
> add_custom_target(statphys)
> add_dependencies(statphys simol-statphys)
> Hope this helps.
> Petr
> On Wed, Dec 23, 2015 at 2:26 PM, Cedric Doucet < cedric.doucet at inria.fr >
> wrote:
> > Hello,
>
> > I have the following script:
>
> > =================================
>
> > file(GLOB_RECURSE statphys "*.cpp")
>
> > #add_library(simol-statphys SHARED ${statphys})
>
> > add_executable(simol-statphys ${statphys})
>
> > add_dependencies(simol-statphys simol-core)
>
> > add_custom_target(statphys simol-statphys)
>
> > target_link_libraries(simol-statphys simol-core)
>
> > target_link_libraries(simol-statphys
> > ${ARMADILLO_INSTALL_DIR}/lib/libarmadillo.so)
>
> > target_link_libraries(simol-statphys
> > ${YAMLCPP_INSTALL_DIR}/lib/libyaml-cpp.a)
>
> > =================================
>
> > I would like generate a shared library simol-statphys instead of an
> > executable simol-statphys.
>
> > In other words, I would like to replace the call to add_executable, to the
> > one which is contained in the comment below this call.
>
> > However, if I do this, and I type
>
> > make statphys
>
> > I get the following error message:
>
> > Scanning dependencies of target statphys
>
> > /bin/sh: 1: simol-statphys: not found
>
> > make[3]: *** [src/modules/statphys/CMakeFiles/statphys] Erreur 127
>
> > make[2]: *** [src/modules/statphys/CMakeFiles/statphys.dir/all] Erreur 2
>
> > make[1]: *** [src/modules/statphys/CMakeFiles/statphys.dir/rule] Erreur 2
>
> > make: *** [statphys] Erreur 2
>
> > Does someone can explain me where do the problem come from?
>
> > Cédric
>
> > --
>
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