From f013b1f8601bfd883ae142f5fdf8054eecbaefb1 Mon Sep 17 00:00:00 2001
From: Axel Huebl <axel.huebl@plasma.ninja>
Date: Wed, 3 Apr 2024 19:34:52 -0700
Subject: [PATCH] Fix: ABLASTR FFT Poisson Solver (#4821)

Small compile issues seen in ImpactX.
---
 Source/ablastr/fields/PoissonSolver.H | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/Source/ablastr/fields/PoissonSolver.H b/Source/ablastr/fields/PoissonSolver.H
index 3489991671c..da0078f8b5a 100644
--- a/Source/ablastr/fields/PoissonSolver.H
+++ b/Source/ablastr/fields/PoissonSolver.H
@@ -13,6 +13,7 @@
 #include <ablastr/warn_manager/WarnManager.H>
 #include <ablastr/math/fft/AnyFFT.H>
 #include <ablastr/fields/Interpolate.H>
+#include <ablastr/profiler/ProfilerWrapper.H>
 
 #if defined(WARPX_USE_PSATD) && defined(WARPX_DIM_3D)
 #include <ablastr/fields/IntegratedGreenFunctionSolver.H>
@@ -178,7 +179,7 @@ computePhi (amrex::Vector<amrex::MultiFab*> const & rho,
         // Use the Multigrid (MLMG) solver if selected or on refined patches
         // but first scale rho appropriately
         using namespace ablastr::constant::SI;
-        rho[lev]->mult(-1._rt/PhysConst::ep0);  // TODO: when do we "un-multiply" this? We need to document this side-effect!
+        rho[lev]->mult(-1._rt/ep0);  // TODO: when do we "un-multiply" this? We need to document this side-effect!
 
 #if !(defined(AMREX_USE_EB) || defined(WARPX_DIM_RZ))
         // Determine whether to use semi-coarsening