Have generate.py pick the VCL variables out of the documentation,

instead of the other way around.

doc/sphinx/reference/vcl.rst

@@ -392,7 +392,7 @@ In VCL you have access to certain variable objects. These contain
 requests and responses currently being worked on. What variables are
 available depends on context.
 
-.. include:: ../include/vcl_var.rst
+.. include:: vcl_var.rst
 
 
 Functions

include/Makefile.am

@@ -102,7 +102,8 @@ nobase_noinst_HEADERS = \
 vmod_abi.h: \
 	    $(top_srcdir)/lib/libvcc/generate.py \
 	    $(top_srcdir)/include/vdef.h \
-	    $(top_srcdir)/include/vrt.h
+	    $(top_srcdir)/include/vrt.h \
+	    $(top_srcdir)/doc/sphinx/reference/vcl_var.rst
 	mkdir -p $(top_builddir)/include/tbl
 	@PYTHON@ $(top_srcdir)/lib/libvcc/generate.py \
 	    $(top_srcdir) $(top_builddir)