Re: how to exit the parent_make immediately when get an error in submake

[Tao T]

Could you show me the code in detail?
Thanks a lot

 Tao


Sam Ravnborg wrote:
> 
> On Tue, Nov 25, 2008 at 08:51:38PM +0000, Greg Chicares wrote:
>> On 2008-11-25 15:12Z, Tao T wrote:
>> > for some reason it seems more complicated to get rid of shell.
>> > do you have any suggestion to use shell? thanks~
>> > currently my command have to change to :BUILDUNITS := $(shell $(foreach
>> > unit,$(ALL_UNITS),cd $(REPOSITORY_ROOT)/units/$(unit)  && $(MAKE)
>> > $(MAKECMDGOALS) BUILD_TYPE=$(BUILD_TYPE) 1>&2;))
>> > It looks more complicated.
>> 
>> The original question was how to stop on the first error. That's
>> the normal behavior of 'make'. But the $(shell) command simply
>> passes a string to a shell, and 'make' doesn't know what that
>> shell is doing until it returns. So, if you really want to use
>> $(shell) this way, you have to write the command so that it
>> stops on error. I guess you could write '&&' instead of ';', and
>> do something about the last '&&', e.g. add 'true' at the end:
>>   $(shell command0 && command1 && ... && command99 && true)
> 
> I usually uses "set -e; bla; bla" to exit on first error in a shell
> command.
> That should work here too.
> 
>       Sam
> 
> 
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