[cmake-developers] cost of usage requirements

[Brad King]

On 06/11/2014 10:46 AM, Brad King wrote:
> Here is a sscce::
> 
>   cmake_minimum_required(VERSION 2.8.9)
>   project(ManyLibs C)
>   set(LibPrev)
>   foreach(n RANGE 100)
>     add_library(Lib${n} SHARED lib.c)
>     target_link_libraries(Lib${n} LINK_PUBLIC ${LibPrev})
>     set(LibPrev Lib${n})
>   endforeach()

A similar case also appears when building VTKWikiExamples
as discussed on the cmake user list here:

 cmake 3.0 memory usage on VTKWikiExamples
 http://thread.gmane.org/gmane.comp.programming.tools.cmake.user/49910/focus=49922

Memory usage explodes during generation and CMake sometimes
runs out and crashes.

-Brad