bug#21815: Grep 2.22 build/run/check: "duplicated target '.deps/alloca.Po'"

[Jim Meyering]

On Mon, Nov 2, 2015 at 6:44 AM, sur-behoffski
<address@hidden> wrote:
...
>
> A minor surprising error message happened during make, which is
> usually squeaky-clean in its output.  I doubt that this is an error;
> it may be related to the recent queries regarding translation:
>
> $ make
>
> make  all-recursive
> make[1]: Entering directory '/home/grep-2.22/grep-2.22'
> Making all in po
> make[2]: Entering directory '/home/grep-2.22/grep-2.22/po'
> make[2]: Nothing to be done for 'all'.
> make[2]: Leaving directory '/home/grep-2.22/grep-2.22/po'
> Making all in lib
> make[2]: Entering directory '/home/grep-2.22/grep-2.22/lib'
> Makefile:1684: target '.deps/alloca.Po' given more than once in the
> same rule
>   GEN      alloca.h
>   GEN      configmake.h
>   GEN      c++defs.h
>
> [...]
>
>   GEN      wchar.h
>   GEN      wctype.h
> make  all-am
> make[3]: Entering directory '/home/grep-2.22/grep-2.22/lib'
> Makefile:1684: target '.deps/alloca.Po' given more than once in the
> same rule
>   CC       argmatch.o
>   CC       binary-io.o
>
> [...]
>
> Looking at the sources, Line 308 of lib/Makefile.in may provide a
> hint:
>
>      lib/Makefile.in:308:am__depfiles_remade = $(DEPDIR)/alloca.Po
> ./$(DEPDIR)/alloca.Po

Thanks for the heads up.
I recall seeing that, too, but it appears to be harmless.
Will investigate.