ctypes: in case of static libraries built, bail out with error status for error.log

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@56921 15284696-431f-4ddb-bdfa-cd5b030d7da7

lib/python/ctypes/Makefile

@@ -80,6 +80,7 @@ default:
 else
 default:
 	@echo "Cannot build Python wrappers for static libraries" >&2
+	exit 1
 endif
 
 $(DSTDIR)/__init__.py: __init__.py | $(DSTDIR)