With this change, does the external project's configure step re-run
when you edit only the CMAKE_CACHE_ARGS for it?
(It did with the *.in / configure_file approach...)
On Fri, Apr 17, 2015 at 12:55 AM, Andrey Pokrovskiy
<wonder.m...@gmail.com> wrote:
> In current implementation of ExternalProject_Add generator expressions
> are supported in CMAKE_ARGS (probably by coincidence), but not in
> CMAKE_CACHE_ARGS. This patch will enable generators expressions in
> CMAKE_CACHE_ARGS.
>
> Use case:
> set(LIBEV_LIBRARIES $<TARGET_FILE:ev>)
> ExternalProject_Add(
> ...
> CMAKE_CACHE_ARGS
> -DLIBEV_LIBRARIES=${LIBEV_LIBRARIES}
> ...)
>
> ---
> Modules/ExternalProject.cmake | 5 +----
> 1 file changed, 1 insertion(+), 4 deletions(-)
>
> diff --git a/Modules/ExternalProject.cmake b/Modules/ExternalProject.cmake
> index 0c73d41..1c7cf51 100644
> --- a/Modules/ExternalProject.cmake
> +++ b/Modules/ExternalProject.cmake
> @@ -1126,10 +1126,7 @@ function(_ep_write_initial_cache target_name
> script_filename script_initial_cach
> # Replace location tags.
> _ep_replace_location_tags(${target_name} script_initial_cache)
> # Write out the initial cache file to the location specified.
> - if(NOT EXISTS "${script_filename}.in")
> - file(WRITE "${script_filename}.in" "\@script_initial_cache\@\n")
> - endif()
> - configure_file("${script_filename}.in" "${script_filename}")
> + file(GENERATE OUTPUT "${script_filename}" CONTENT
> "${script_initial_cache}")
> endfunction()
>
>
> --
> 2.3.2 (Apple Git-55)
>
> --
>
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