[CMake] Parallel jobs failed for cmake

[Igor Sobinov]

 Hello Bill,

Thanks, that's clear.

So, If I write in makefile


build_release: $(RELEASE_DIR)
    @cd $(RELEASE_DIR); $(MAKE) release

I got an error

Also if I write build_release: $(RELEASE_DIR)
    $(MAKE) release -C   $(RELEASE_DIR)

I got an error too

But this is successfull command:
# cd $ RELEASE_DIR; make release -j10

Why make doesn't support jobs for subdirs?


>Пятница, 11 декабря 2015, 14:14 -05:00 от Bill Hoffman <bill.hoffman at kitware.com>:
>
>On 12/11/2015 7:24 AM, Igor Sobinov wrote:
>> Hello Bill,
>>
>> yes, make release is a custom command but that's not important.
>> I do the following:
>> # cd /home/igor/build_root/release_target
>> # make release -j5
>Yes, it is important, it is the reason it is not working.  The custom 
>command needs to use $(MAKE) and not make to call make or you will get 
>this error.  Child make calls need environment variables to get parallel 
>builds to work.  The MAKE env var is used to pass them around.
>
>-Bill
>


Bye, Igor

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