enable python module build in subdir

[Michael Tokarev]

Ping? Is it not the right place for such changes?

17.04.2022 23:37, Michael Tokarev via Unbound-users wrote:
> Unbound Makefile has two small issues preventing
> building python modules in a non-source directory
> (eg in a subdir).
> 
> First, swig fails to find <libunbound/unbound.h>
> which is not in build dir but in source dir.
> 
> Next, libunbound/python/unbound.py is now being
> generated file, generated in the build dir, not
> in source dir.
> 
> This patch fixes them.
> 
> Signed-off-by: Michael Tokarev <mjt at tls.msk.ru>
> 
> diff --git a/Makefile.in b/Makefile.in
> index 55125a44..f04db624 100644
> --- a/Makefile.in
> +++ b/Makefile.in
> @@ -59,3 +59,3 @@ CC=@CC@
>   CPPFLAGS=-I. @CPPFLAGS@
> -PYTHON_CPPFLAGS=-I. @PYTHON_CPPFLAGS@
> +PYTHON_CPPFLAGS=-I$(srcdir) @PYTHON_CPPFLAGS@
>   CFLAGS=-DSRCDIR=$(srcdir) @CFLAGS@
> @@ -558,3 +558,3 @@ pyunbound-install:
>   	$(INSTALL) -m 755 -d $(DESTDIR)$(PYTHON_SITE_PKG)
> -	$(INSTALL) -c -m 644 $(srcdir)/libunbound/python/unbound.py $(DESTDIR)$(PYTHON_SITE_PKG)/unbound.py
> +	$(INSTALL) -c -m 644 libunbound/python/unbound.py $(DESTDIR)$(PYTHON_SITE_PKG)/unbound.py
>   	$(LIBTOOL) --mode=install cp _unbound.la $(DESTDIR)$(PYTHON_SITE_PKG)