create arepo interface.h and move #include allvars.h & proto.h along with ifdef Cpp choice there

Author: Matthew West

src/amuse/community/arepo/interface.cc

@@ -4,12 +4,6 @@
 
 #include "worker_code.h"
 
-#include "src/main/allvars.h"
-#include "src/main/proto.h"
-
-#ifdef __cplusplus
-extern "C" {
-#endif
 
 // general interface functions:
 
@@ -136,12 +130,6 @@ int initialize_code(){
 
   determine_compute_nodes();
 
-  for(PTask = 0; NTask > (1 << PTask); PTask++)
-    ;
-
-  begrun0();
-
-  RestartFlag = 0;
 
   set_default_parameters();
   begrun1(); /* set-up run  */
@@ -354,6 +342,5 @@ int set_velocity(int index_of_the_particle, double vx, double vy,
   double vz){
   return 0;
 }
-#ifdef __cplusplus
-}
-#endif
+
+

src/amuse/community/arepo/interface.h

@@ -0,0 +1,10 @@
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include "src/allvars.h"
+#include "src/proto.h"
+
+#ifdef __cplusplus
+}
+#endif

src/amuse/community/arepo/interface.py

@@ -23,7 +23,7 @@ class ArepoInterface(
         .. [#] Weinberger, R., Springel, V., Pakmor, R., 2020, ApJS, 248, 32 (Public Code Release) [2020ApJS..248...32W]
     """
 
-    include_headers = ["worker_code.h"]
+    include_headers = ["worker_code.h", "inteface.h"]
 
     def __init__(self, **keyword_arguments):
         CodeInterface.__init__(self, name_of_the_worker="arepo_worker", **keyword_arguments)