Re: Compiling git with makepp patch
Daniel Pfeiffer <occitan@t-online.de> writes:
Show 22 quoted lines
> la 08/24/2010 06:32 AM Jonathan Nieder skribis:
>> Hi,
>>
>> Daniel Pfeiffer wrote:
>>> The file needs to be built immediately so
>>> that it can be included, before reading the rest of the makefile.
>>> But the dependency is only known to be phony after running the rule.
>>> Here you have a hen-egg problem, where I have no clue how Gnu make
>>> can cope (this is the one case where it requires .PHONY).
>> GNU make, unlike, say, pmake, reads all the rules before it runs
>> anything iirc. So you can have
>>
>> -include foo
>>
>> foo:
>> echo bar:>foo
>> echo ' echo hi'>>foo
>>
>> and it will cope okay.
> While that is not the usual use-case for -include, the file might very
> well define some macros, and the rest of the makefile, indeed the foo-rule
> itself might depend on those macros.
GNU make will restart reading all makefiles when any of them was remade.
Andreas.
--
Andreas Schwab, schwab@linux-m68k.org
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Andreas Schwab <schwab@linux-m68k.org>