Added configuration option to enable dummy VELOCIraptor compilation

configure.ac

@@ -910,6 +910,22 @@ fi
 AC_SUBST([VELOCIRAPTOR_LIBS])
 AM_CONDITIONAL([HAVEVELOCIRAPTOR],[test -n "$VELOCIRAPTOR_LIBS"])
 
+# Check for dummy VELOCIraptor.
+AC_ARG_ENABLE([dummy-velociraptor],
+    [AS_HELP_STRING([--enable-dummy-velociraptor],
+       [Enable dummy velociraptor compilation @<:@yes/no@:>@]
+    )],
+    [enable_dummy_velociraptor="$enableval"],
+    [enable_dummy_velociraptor="no"]
+)
+
+if test "$enable_dummy_velociraptor" = "yes"; then
+  have_velociraptor="yes"
+
+  AC_DEFINE(HAVE_VELOCIRAPTOR,1,[The VELOCIraptor library appears to be present.])
+  AC_DEFINE(HAVE_DUMMY_VELOCIRAPTOR,1,[The dummy VELOCIraptor library is present.])
+fi
+
 # Check for floating-point execeptions
 AC_CHECK_FUNC(feenableexcept, AC_DEFINE([HAVE_FE_ENABLE_EXCEPT],[1],
     [Defined if the floating-point exception can be enabled using non-standard GNU functions.]))

src/Makefile.am

@@ -61,7 +61,7 @@ AM_SOURCES = space.c runner.c queue.c task.c cell.c engine.c \
     part_type.c xmf.c gravity_properties.c gravity.c \
     collectgroup.c hydro_space.c equation_of_state.c \
     chemistry.c cosmology.c restart.c mesh_gravity.c velociraptor_interface.c \
-    outputlist.c
+    outputlist.c velociraptor_dummy.c
 
 # Include files for distribution, not installation.
 nobase_noinst_HEADERS = align.h approx_math.h atomic.h barrier.h cycle.h error.h inline.h kernel_hydro.h kernel_gravity.h \