[PATCH 3/3] environment generation: Fix dependencies

[Jean-Christophe PLAGNIOL-VILLARD]

On 19:14 Thu 27 Sep     , Sascha Hauer wrote:
> The dependencies for generating the environment do not work properly:
> 
> - If files are removed from the defaultenv, a subsequent make will not
>   update the default environment.
> - If CONFIG_DEFAULT_ENVIRONMENT_PATH changes, the default environment
>   also will not be regenerated.
> 
> This patch fixes this by introducing a cmd_env which has the content of
> $(ENV_FILES) in the command so that the if_changed mechanism recognizes
> a change when $(ENV_FILE) changes. This also results in a nice "  ENV "
> string in the build process.
> 

we still have an toehr annoying bug generte the temporary env in srctree
instead of objtree

Best Regrards,
J.