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-rw-r--r--src/startup.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/src/startup.c b/src/startup.c
index 63e3c63..102196c 100644
--- a/src/startup.c
+++ b/src/startup.c
@@ -28,7 +28,7 @@ CCTK_FILEVERSION(AEIThorns_AEILocalInterp_src_startup_c)
It registers the interpolation operators.
@enddesc
@@*/
-void AEILocalInterp_U_Startup(void)
+int AEILocalInterp_U_Startup(void)
{
CCTK_InterpRegisterOpLocalUniform(AEILocalInterp_U_Lagrange_TP,
"Lagrange polynomial interpolation (tensor product)",
@@ -48,4 +48,6 @@ CCTK_InterpRegisterOpLocalUniform(AEILocalInterp_U_Lagrange_TP,
CCTK_InterpRegisterOpLocalUniform(AEILocalInterp_U_Lagrange_TP,
"generalized polynomial interpolation",
CCTK_THORNSTRING);
+
+return 0;
}