Re: GMAKE 3.81 vs GMAKE 4.2

[nikhil jain]

Hi Pablo,

Thanks for your reply.
I actually do not know how many targets will be compiled (we have more than
10k targets in a Makefile). So, is there a straightforward way to know that
only a single code file is changed and it will be an incremental build and
not a full build ?

Regarding return value of make - I want to print the status of make before
make exit. Somewhere in main.c at the end ? Can I do this ? Which variable
holds the status inside make source code ?

thanks in advance! You guys are awesome.

On Thu, May 5, 2022 at 5:56 PM Juan Pablo Garibotti Arias <
jp.garibotti@gmail.com> wrote:

> You can do a run dry, which will print what recipes to run without running
> them. From
> https://www.gnu.org/software/make/manual/html_node/Instead-of-Execution.html
> :
> ‘-n’
> ‘--just-print’
> ‘--dry-run’
> ‘--recon’
> “No-op”. Causes make to print the recipes that are needed to make the
> targets up to date, but not actually execute them. Note that some recipes
> are still executed, even with this flag (see How the MAKE Variable Works).
> Also any recipes needed to update included makefiles are still executed
> (see How Makefiles Are Remade).
>
> Aside from that, make always does incremental builds, since it only
> updates what it believes needs to be updated. Poorly set up makefiles may
> cause it to build more or less than is actually required.
>
> To know if it passed or failed you can check the return value of calling
> make. If it encountered no errors it should return 0.
>
> On Thu, May 5, 2022 at 2:11 PM nikhil jain <jainnikhil28@gmail.com> wrote:
>
>> Hi Guys,
>>
>> I have been using gmake from a long time.
>> I wanted to know 2 things -
>>
>> 1) How do I know if the compilation is incremental or full ? I mean is
>> there a way in make to know that the compile is incremental ? Any variable
>> which is set ? any ENV variable ?
>> 2) How do I know the status of the make in main function ? How to know if
>> the build passed or failed ?
>>
>> This is extremely urgent. Please help.
>>
>> On Sun, Jan 24, 2021 at 10:59 AM nikhil jain <jainnikhil28@gmail.com>
>> wrote:
>>
>> > Hi,
>> >
>> > There are few like you said SGE's qmake. There is one from IBM called
>> > lsmake but it needs LSF to run.
>> > You can actually develop your own non-standard gmake build by filling
>> out
>> > the stubs in the remote-stub.c file. That will be much easier.
>> >
>> > Thanks
>> > Nikhil
>> >
>> > On Sat, Jan 23, 2021 at 2:13 AM Cook, Malcolm <MEC@stowers.org> wrote:
>> >
>> >> >The standard build of GNU make does not support any remote operations
>> and
>> >> >it links in the remote-stub.c file which provides do-nothing versions
>> of
>> >> >all the remote functions.
>> >>
>> >> Is there a non-standard build that *does* support remote operations?  I
>> >> am familiar with SGE's qmake.  Is this such a build? Are there others?
>> >>
>> >> Inquiring minds....
>> >>
>> >
>>
>