[CMake] shared library with CMake in kdevelop4

[Michael Hertling]

On 01/16/2012 04:23 PM, pasparis at noos.fr wrote:
> Thank you michael
> 
> in fact at the beginning I wanted just to do a static local library
> 
> (I am totally new with cmake, before I didn't use that kind of tools with VS and
> recently netbeans)
> 
> finally according to your suggestions I wrote:
> 
> projA
> project(proja)
> add_library(proja Execute_Msg.cpp)

If you definitely want a static library: ADD_LIBRARY(proja STATIC ...)
Without the explicit SHARED/STATIC keyword, the type of the resulting
library is determined by the BUILD_SHARED_LIBS variable which can be
controlled by the user; this might possibly be undesired.

> proj3
> cmake_minimum_required(VERSION 2.8)
> project(proj3)
> add_subdirectory(projA)
> add_executable(proj3 main.cpp)
> target_link_libraries(proj3 proja)
> 
> and it works
> thanks again
> pascal

Regards,

Michael

PS: Please don't drop the ML.

> ---- Message d'origine ----
>  >De : "Michael Hertling" <mhertling at online.de>
>  >À : cmake at cmake.org
>  >Objet : Re: [CMake] shared library with CMake in kdevelop4
>  >Date : 16/01/2012 15:39:29 CET
>  >
>  >On 01/16/2012 02:38 PM, pasparis at noos.fr wrote:
>  > >
>  > > I am new with kdevelop and cmake so apologize for this pretty naive
>  > question, I
>  > > create in kdevelop a proj3 project and want to link a library so I create
>  > a
>  > > second project projA within the proj3 directory
>  > >
>  > > the projA CMakelist is
>  > >
>  > > project(proja)
>  > > set( lib_SOURCES Execute_Msg.cpp )
>  > > add_library(proja ${lib_SOURCES} )
>  >
>  > If you want to get a shared library, you should state this explicitly:
>  >
>  > ADD_LIBRARY(proja SHARED ${lib_SOURCES} )
>  >
>  > Also see the BUILD_SHARED_LIBS variable.
>  >
>  > > the proj3 CMakelist is
>  > >
>  > > cmake_minimum_required(VERSION 2.8)
>  > > project(proj3)
>  > > link_directories(/pascal/pKD3/proj3/projA/build)
>  >
>  > Never use LINK_DIRECTORIES(), it's unnecessary and dangerous. Instead,
>  > you need ADD_SUBDIRECTORIES(projA) here to make projA known to proj3.
>  >
>  > > add_executable(proj3 main.cpp)
>  > > target_link_libraries(proj3 libproja)
>  >
>  > In TARGET_LINK_LIBRARIES(), refer to targets to link against
>  > by their *target names*, not by their *file names*, i.e.:
>  >
>  > TARGET_LINK_LIBRARIES(proj3 proja)
>  >
>  > > there is a libproja file in the /pascal/pKD3/proj3/projA/build directory,
>  > so I
>  > > don't understand why I get the message /usr/bin/ld: cannot find
>  > -llibproja
>  >
>  > This is because ld searches a quite restricted set of directories for
>  > libraries specifed by -l; particularly, it doesn't search the current
>  > directory. If you specify targets by their target names, CMake uses
>  > full paths in the linker command lines, so there will be no issue.
>  >
>  > > thanks for help
>  >
>  > Regards,
>  >
>  > Michael