Re: [error] make -j option ...

[Paul D. Smith]

%% you wrote:

> $(TARGETDIR)/exist :
>       @if test ! -f $(TARGETDIR)/exist; then mkdir $(TARGETDIR); fi
>       @echo Building $(TARGETDIR) > $(TARGETDIR)/exist
> 
> ==> Above codes are run smoothly at -J1.
> 
> ==> However, contrary to my expectation, I see following error message 
> at -J2, -J3, -J4.... and then, automatically exit from the Makefile.
> 
> make: *** No rule to make target 'M6000\exist', needed by 'M6000.elf'. Stop.
> make: *** Waiting for unfiniswhed jhobs....

Be sure to use "/" everywhere (or "\" everywhere, but this is not a good
practice).  You don't want to mix and match.  GNU make's algorithm for
finding targets is basically string comparisons.

> ==> I can check formation of M6000 directory after the error message.
> 
> ==> Above Source Codes are included in more than 180 codes.

You are having problems because the directory is created as a
side-effect of the target.  I usually recommend using a shell function
to create directories, like this:

  _dummy := $(shell [ -d $(TARGETDIR) ] || mkdir $(TARGETDIR))

-- 
-------------------------------------------------------------------------------
 Paul D. Smith <address@hidden>          Find some GNU make tips at:
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 "Please remain calm...I may be mad, but I am a professional." --Mad Scientist