New review comment by sgn on void-packages repository

https://github.com/void-linux/void-packages/pull/27416#discussion_r548924294

Comment:
This part looks sketchy. `${XBPS_CROSS_BASE}`

I think I'll do this instead.

```diff
diff --git a/srcpkgs/nautilus-python/template b/srcpkgs/nautilus-python/template
index 072aeedb20..2aa4b0f9c6 100644
--- a/srcpkgs/nautilus-python/template
+++ b/srcpkgs/nautilus-python/template
@@ -4,9 +4,8 @@ version=1.2.3
 revision=3
 build_style=gnu-configure
 configure_args="--enable-gtk-doc PYTHON=python3
- am_cv_python_pythondir=${XBPS_CROSS_BASE}/${py3_lib}/site-packages
- am_cv_python_pyexecdir=${XBPS_CROSS_BASE}/${py3_lib}/site-packages
- PYTHON_INCLUDES=-I${XBPS_CROSS_BASE}/${py3_inc}"
+ PYTHON_INCLUDES=-I${XBPS_CROSS_BASE}/${py3_inc}
+ PYTHON_LIBS=-lpython${py3_ver}"
 hostmakedepends="automake libtool pkg-config which python3"
 makedepends="python3-devel python3-gobject-devel gtk-doc nautilus-devel"
 depends="nautilus python3-gobject"
```