split off engine_maketasks and all associated functions to a separate file.

src/Makefile.am

@@ -52,7 +52,7 @@ include_HEADERS = space.h runner.h queue.h task.h lock.h cell.h part.h const.h \
     logger_io.h
 
 # Common source files
-AM_SOURCES = space.c runner.c queue.c task.c cell.c engine.c \
+AM_SOURCES = space.c runner.c queue.c task.c cell.c engine.c engine_maketasks.c \
     serial_io.c timers.c debug.c scheduler.c proxy.c parallel_io.c \
     units.c common_io.c single_io.c multipole.c version.c map.c \
     kernel_hydro.c tools.c part.c partition.c clocks.c parser.c \

src/engine.h

@@ -391,7 +391,7 @@ struct engine {
   int restart_max_tasks;
 };
 
-/* Function prototypes. */
+/* Function prototypes, engine.c. */
 void engine_addlink(struct engine *e, struct link **l, struct task *t);
 void engine_barrier(struct engine *e);
 void engine_compute_next_snapshot_time(struct engine *e);
@@ -427,7 +427,6 @@ void engine_prepare(struct engine *e);
 void engine_init_particles(struct engine *e, int flag_entropy_ICs,
                            int clean_h_values);
 void engine_step(struct engine *e);
-void engine_maketasks(struct engine *e);
 void engine_split(struct engine *e, struct partition *initial_partition);
 void engine_exchange_strays(struct engine *e, const size_t offset_parts,
                             const int *ind_part, size_t *Npart,
@@ -446,6 +445,9 @@ void engine_unpin(void);
 void engine_clean(struct engine *e);
 int engine_estimate_nr_tasks(struct engine *e);
 
+/* Function prototypes, engine_marktasks.c. */
+void engine_maketasks(struct engine *e);
+
 #ifdef HAVE_SETAFFINITY
 cpu_set_t *engine_entry_affinity(void);
 #endif