Re: No rule to make target `../../build-aux/snippet/arg-nonnull.h'

[martin rudalics]

> Weird. Master contains no references to
> build-aux/snippet/arg-nonnull.h other than in
> msdos/autogen/Makefile.in (which I assume you are not using). So there
> must be something old lying in your directory. Does it fix things to
> remove nt/gnulib.mk and then rebuild?

Yes.  The build succeeded.

> If not, what does this output?
> grep -FRl build-aux/snippet/arg-nonnull.h .

I had two (didn't check now).  One in /nt/gnulib.mk

BUILT_SOURCES += arg-nonnull.h
# The arg-nonnull.h that gets inserted into generated .h files is the same as
# build-aux/snippet/arg-nonnull.h, except that it has the copyright header cut
# off.
arg-nonnull.h: $(top_srcdir)/build-aux/snippet/arg-nonnull.h
        $(AM_V_GEN)rm -f address@hidden $@ && \
        sed -n -e '/GL_ARG_NONNULL/,$$p' \
          < $(top_srcdir)/build-aux/snippet/arg-nonnull.h \
          > address@hidden && \
        mv address@hidden $@

@BUILDING_FOR_WINDOWSNT_TRUE@   $(top_srcdir)/build-aux/snippet/arg-nonnull.h \

and one in /lib/Makefile.in

# The arg-nonnull.h that gets inserted into generated .h files is the same as
# build-aux/snippet/arg-nonnull.h, except that it has the copyright header cut
# off.
@address@hidden: $(top_srcdir)/build-aux/snippet/arg-nonnull.h
@BUILDING_FOR_WINDOWSNT_TRUE@   $(AM_V_GEN)rm -f address@hidden $@ && \
@BUILDING_FOR_WINDOWSNT_TRUE@   sed -n -e '/GL_ARG_NONNULL/,$$p' \
@BUILDING_FOR_WINDOWSNT_TRUE@     < 
$(top_srcdir)/build-aux/snippet/arg-nonnull.h \
@BUILDING_FOR_WINDOWSNT_TRUE@     > address@hidden && \
@BUILDING_FOR_WINDOWSNT_TRUE@   mv address@hidden $@

Thanks for helping, martin