python: Avoid declaring loc_ctx multiple times

Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>

src/python/locationmodule.c

@@ -23,6 +23,9 @@
 #include "network.h"
 #include "writer.h"
 
+/* Declare global context */
+struct loc_ctx* loc_ctx;
+
 PyMODINIT_FUNC PyInit_location(void);
 
 static void location_free(void) {

src/python/locationmodule.h

@@ -20,6 +20,6 @@
 #include <loc/libloc.h>
 #include <loc/as.h>
 
-struct loc_ctx* loc_ctx;
+extern struct loc_ctx* loc_ctx;
 
 #endif /* PYTHON_LOCATION_MODULE_H */