Re: 'make install' fails when build directory is differnet from that of source tree.

[Daniel Shahaf <d.s@xxxxxxxxxxxxxxxxxx>]

Daniel Shahaf wrote on Fri, 29 May 2020 22:54 +0000:
> +++ b/configure.ac
> @@ -3178,6 +3178,13 @@ AC_CONFIG_COMMANDS([stamp-h], [echo >stamp-h])
> +dnl Copy pre-built man pages, for tarball out-of-tree builds.
> +for manpage in ${srcdir}/Doc/*.1; do
> +  if test x"$manpage" != x*"*"*; then
> +    cp ${manpage} ./Doc/
> +  fi
> +done

In second thought, this is going to break _in-tree_ tarball builds,
isn't it? —

% cp ./foo ./
cp: './foo' and './foo' are the same file
% 

So, how'd I check whether the build is in-tree or out-of-tree?  Can I
just compare $abs_srcdir to $abs_builddir, or should I touch a file in
one and see whether it appears in the other?

Cheers,

Daniel