toolchain FFTW fixes

Author: mrodrig6

.github/workflows/cleanliness.yml

@@ -39,6 +39,9 @@ jobs:
               path: master
 
           - name: Setup Ubuntu
+            env: 
+              MFC_FFTW: "OFF" # disabling internal FFTW 
+
             run: |
               sudo apt update -y
               sudo apt install -y tar wget make cmake gcc g++ python3 python3-dev "openmpi-*" libopenmpi-dev libfftw3-dev

.github/workflows/test.yml

@@ -59,13 +59,17 @@ jobs:
 
       - name: Setup Ubuntu
         if:   matrix.os == 'ubuntu' && matrix.intel == false
+        env: 
+              MFC_FFTW: "OFF" # disabling internal FFTW 
         run: |
            sudo apt update -y
            sudo apt install -y cmake gcc g++ python3 python3-dev hdf5-tools \
                     libfftw3-dev libhdf5-dev openmpi-bin libopenmpi-dev
 
       - name: Setup Ubuntu (Intel)
         if:   matrix.os == 'ubuntu' && matrix.intel == true
+        env: 
+              MFC_FFTW: "OFF" # disabling internal FFTW 
         run: |
           wget https://apt.repos.intel.com/intel-gpg-keys/GPG-PUB-KEY-INTEL-SW-PRODUCTS.PUB
           sudo apt-key add GPG-PUB-KEY-INTEL-SW-PRODUCTS.PUB