[CMake] PROPERTY for list of link libraries

[Tamás Kenéz]

I think you need something like CMakeExpandImportedTargets.cmake (
https://cmake.org/cmake/help/latest/module/CMakeExpandImportedTargets.html).
But that module has been deprecated for a while and does not support some
newer CMake features.

Instead, feel free to try out my fork:
https://gist.github.com/tamaskenez/ef98237fff654c6d28b5 . This fork adds
support for IMPORTED_IMPLIB, INTERFACE_LINK_LIBRARIES and $<CONFIG:>
expressions.

It recursively resolves all dependencies for the given configuration
(Debug, Release, ...)

Tamas


On Fri, Jan 22, 2016 at 11:01 PM, Tom Kacvinsky <
tom.kacvinsky at vectorcast.com> wrote:

> Ah yes, that was it.  Switching to 3.3.2 did the trick.  Time to upgrade
> cmake.
>
> On Fri, Jan 22, 2016 at 4:40 PM, Tom Kacvinsky <
> tom.kacvinsky at vectorcast.com> wrote:
>
>> I am now having a problem with transitive dependencies.  I need all
>> libraries that are linked in.  I am missing the ones that are linked in
>> transitively.  Modified code is, ignoring J. Decker's suggestion about
>> using generator expressions to get the path to the target's output.
>>
>> get_property(libs TARGET a_target PROPERTY LINK_LIBRARIES)
>> foreach(lib ${libs})
>>   if(TARGET ${lib})
>>     # If this is a library, get its transitive dependencies
>>     get_property(trans TARGET ${lib} PROPERTY INTERFACE_LINK_LIBRARIES)
>>     foreach(tran ${trans})
>>       if(TARGET ${tran})
>>         get_property(path TARGET ${tran} PROPERTY LOCATION)
>>         file(APPEND "${CMAKE_BINARY_DIR/libs.txt" "${path}\n")
>>       endif()
>>     endforeach()
>>     get_property(path TARGET ${lib} PROPERTY LOCATION)
>>     file(APPEND "${CMAKE_BINARY_DIR}/libs.txt" "${path}\n")
>>   else()
>>     file(APPEND "${CMAKE_BINARY_DIR}/libs.txt" "${lib}\n")
>>   endif()
>> endforeach()
>>
>> I am using cmake 2.8.11.2, perhaps this property doesn't do what I
>> thought it would with this version of cmake?
>>
>> Thanks,
>>
>> Tom
>>
>> On Fri, Jan 22, 2016 at 9:23 AM, Tom Kacvinsky <
>> tom.kacvinsky at vectorcast.com> wrote:
>>
>>> I have need for a cross platform methods of getting libraries linked
>>> into an executable.
>>>
>>> Say for instance, we have
>>>
>>> add_library(foo STATIC a.c)
>>> add_exceutable(bar b.c)
>>> target_link_libraries(bar foo)
>>>
>>> So I know for that bar has a dependency on foo.lib (on Windows) and
>>> libfoo.a on Linux.
>>>
>>> And so forth.  What I would like to do is after everything is set up,
>>> query the properties of bar
>>> and find the list of libraries linked into bar in such a fashion I get
>>> that platform's specific library name (instead of the library's target
>>> name).
>>>
>>> IS this possible?  I read the docs and didn't see a property for
>>> getting this list.  Did I miss something?  If so I plan on using
>>> either get_property of get_target_property.
>>>
>>> Thanks.
>>>
>>
>>
>
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