diff --git a/.github/workflows/cmake-analysis.yml b/.github/workflows/cmake-analysis.yml
index aeddcc245a5..9fc9ed998d4 100644
--- a/.github/workflows/cmake-analysis.yml
+++ b/.github/workflows/cmake-analysis.yml
@@ -32,7 +32,7 @@ jobs:
     - name: Install CMake Dependencies (Linux_coverage)
       run: |
         sudo apt update
-        sudo apt-get install ninja-build doxygen graphviz curl libncurses5 build-essential
+        sudo apt-get install ninja-build doxygen graphviz curl build-essential
         sudo apt install libssl3 libssl-dev libcurl4 libcurl4-openssl-dev
         sudo apt-get install lcov -q -y
 
@@ -127,7 +127,7 @@ jobs:
       - name: Install CMake Dependencies (Linux_Leak)
         run: |
           sudo apt update
-          sudo apt-get install ninja-build doxygen graphviz curl libncurses5
+          sudo apt-get install ninja-build doxygen graphviz curl
 
       - name: add clang to env
         uses: KyleMayes/install-llvm-action@v2.0.5
@@ -227,7 +227,7 @@ jobs:
       - name: Install CMake Dependencies (Linux_Address)
         run: |
           sudo apt update
-          sudo apt-get install ninja-build doxygen graphviz curl libncurses5
+          sudo apt-get install ninja-build doxygen graphviz curl
 
       - name: add clang to env
         uses: KyleMayes/install-llvm-action@v2.0.5
@@ -327,7 +327,7 @@ jobs:
       - name: Install CMake Dependencies (Linux_UndefinedBehavior)
         run: |
           sudo apt update
-          sudo apt-get install ninja-build doxygen graphviz curl libncurses5
+          sudo apt-get install ninja-build doxygen graphviz curl
 
       - name: add clang to env
         uses: KyleMayes/install-llvm-action@v2.0.5
diff --git a/.github/workflows/cmake-ctest.yml b/.github/workflows/cmake-ctest.yml
index cb67868305c..7941528c2ba 100644
--- a/.github/workflows/cmake-ctest.yml
+++ b/.github/workflows/cmake-ctest.yml
@@ -680,7 +680,7 @@ jobs:
         env:
           FC: ${{ steps.setup-fortran.outputs.fc }}
           CC: ${{ steps.setup-fortran.outputs.cc }}
-          CXX: ${{ steps.setup-fortran.outputs.cxx }}
+          
           BINSIGN: ${{ needs.check-secret.outputs.sign-state }}
           SIGNTOOLDIR: ${{ github.workspace }}/Microsoft.Windows.SDK.BuildTools/bin/10.0.22621.0/x64
         run: |
@@ -796,7 +796,6 @@ jobs:
         env:
           FC: ${{ steps.setup-fortran.outputs.fc }}
           CC: ${{ steps.setup-fortran.outputs.cc }}
-          CXX: ${{ steps.setup-fortran.outputs.cxx }}
         run: |
           cd "${{ runner.workspace }}/hdf5/${{ steps.set-file-base.outputs.SOURCE_BASE }}"
           cmake --workflow --preset=${{ inputs.preset_name }}-Intel --fresh
diff --git a/.github/workflows/cmake-script.yml b/.github/workflows/cmake-script.yml
index 4b76dfc0ce8..f4e1acaa000 100644
--- a/.github/workflows/cmake-script.yml
+++ b/.github/workflows/cmake-script.yml
@@ -500,7 +500,6 @@ jobs:
         env:
           FC: ${{ steps.setup-fortran.outputs.fc }}
           CC: ${{ steps.setup-fortran.outputs.cc }}
-          CXX: ${{ steps.setup-fortran.outputs.cc }}
         run: |
           cd "${{ runner.workspace }}/hdf5"
           ctest -S HDF5config.cmake,CTEST_SITE_EXT=GH-${{ github.event.repository.full_name }}-Intel,LOCAL_SUBMIT=ON,NINJA=TRUE,BUILD_GENERATOR=VS202264,CTEST_SOURCE_NAME=${{ steps.set-file-base.outputs.SOURCE_BASE }} -C Release -VV -O hdf5.log
@@ -597,7 +596,6 @@ jobs:
         env:
           FC: ${{ steps.setup-fortran.outputs.fc }}
           CC: ${{ steps.setup-fortran.outputs.cc }}
-          CXX: ${{ steps.setup-fortran.outputs.cxx }}
         run: |
           cd "${{ runner.workspace }}/hdf5"
           ctest -S HDF5config.cmake,CTEST_SITE_EXT=GH-${{ github.event.repository.full_name }}-Intel,LOCAL_SUBMIT=ON,NINJA=TRUE,BUILD_GENERATOR=Unix,CTEST_SOURCE_NAME=${{ steps.set-file-base.outputs.SOURCE_BASE }} -C Release -VV -O hdf5.log
@@ -622,7 +620,7 @@ jobs:
       - name: Install CMake Dependencies (Linux_clang)
         run: |
           sudo apt-get update
-          sudo apt-get install ninja-build doxygen graphviz curl libncurses5
+          sudo apt-get install ninja-build doxygen graphviz curl
 
       - name: add clang to env
         uses: KyleMayes/install-llvm-action@v2.0.5
diff --git a/.github/workflows/intel-auto.yml b/.github/workflows/intel-auto.yml
index 6f80a79eebc..2f0c01847bc 100644
--- a/.github/workflows/intel-auto.yml
+++ b/.github/workflows/intel-auto.yml
@@ -38,7 +38,6 @@ jobs:
         env:
           FC: ${{ steps.setup-fortran.outputs.fc }}
           CC: ${{ steps.setup-fortran.outputs.cc }}
-          CXX: ${{ steps.setup-fortran.outputs.cxx }}
         run: |
           sh ./autogen.sh
           mkdir "${{ runner.workspace }}/build"
@@ -54,7 +53,6 @@ jobs:
         env:
           FC: ${{ steps.setup-fortran.outputs.fc }}
           CC: ${{ steps.setup-fortran.outputs.cc }}
-          CXX: ${{ steps.setup-fortran.outputs.cxx }}
         run: |
           make -j3
         working-directory: ${{ runner.workspace }}/build
@@ -64,7 +62,6 @@ jobs:
         env:
           FC: ${{ steps.setup-fortran.outputs.fc }}
           CC: ${{ steps.setup-fortran.outputs.cc }}
-          CXX: ${{ steps.setup-fortran.outputs.cxx }}
         run: |
           make check -j2
         working-directory: ${{ runner.workspace }}/build
@@ -74,7 +71,6 @@ jobs:
         env:
           FC: ${{ steps.setup-fortran.outputs.fc }}
           CC: ${{ steps.setup-fortran.outputs.cc }}
-          CXX: ${{ steps.setup-fortran.outputs.cxx }}
         run: |
           make install
         working-directory: ${{ runner.workspace }}/build
@@ -84,7 +80,6 @@ jobs:
         env:
           FC: ${{ steps.setup-fortran.outputs.fc }}
           CC: ${{ steps.setup-fortran.outputs.cc }}
-          CXX: ${{ steps.setup-fortran.outputs.cxx }}
         run: |
           make check-install
         working-directory: ${{ runner.workspace }}/build
diff --git a/.github/workflows/intel-cmake.yml b/.github/workflows/intel-cmake.yml
index 8cfdcdc1e86..3fc37359065 100644
--- a/.github/workflows/intel-cmake.yml
+++ b/.github/workflows/intel-cmake.yml
@@ -39,7 +39,6 @@ jobs:
         env:
           FC: ${{ steps.setup-fortran.outputs.fc }}
           CC: ${{ steps.setup-fortran.outputs.cc }}
-          CXX: ${{ steps.setup-fortran.outputs.cxx }}
         run: |
           mkdir "${{ runner.workspace }}/build"
           cd "${{ runner.workspace }}/build"
@@ -56,7 +55,6 @@ jobs:
         env:
           FC: ${{ steps.setup-fortran.outputs.fc }}
           CC: ${{ steps.setup-fortran.outputs.cc }}
-          CXX: ${{ steps.setup-fortran.outputs.cxx }}
         run: |
           cmake --build . --parallel 3 --config ${{ inputs.build_mode }}
         working-directory: ${{ runner.workspace }}/build
@@ -66,7 +64,6 @@ jobs:
         env:
           FC: ${{ steps.setup-fortran.outputs.fc }}
           CC: ${{ steps.setup-fortran.outputs.cc }}
-          CXX: ${{ steps.setup-fortran.outputs.cxx }}
         run: |
           ctest . --parallel 2 -C ${{ inputs.build_mode }} -V
         working-directory: ${{ runner.workspace }}/build
@@ -93,7 +90,6 @@ jobs:
         env:
           FC: ${{ steps.setup-fortran.outputs.fc }}
           CC: ${{ steps.setup-fortran.outputs.cc }}
-          CXX: ${{ steps.setup-fortran.outputs.cxx }}
         run: |
           mkdir "${{ runner.workspace }}/build"
           Set-Location -Path "${{ runner.workspace }}\\build"
@@ -104,7 +100,6 @@ jobs:
         env:
           FC: ${{ steps.setup-fortran.outputs.fc }}
           CC: ${{ steps.setup-fortran.outputs.cc }}
-          CXX: ${{ steps.setup-fortran.outputs.cxx }}
         run: |
           cmake --build . --parallel 3 --config ${{ inputs.build_mode }}
         working-directory: ${{ runner.workspace }}/build
@@ -114,7 +109,6 @@ jobs:
         env:
           FC: ${{ steps.setup-fortran.outputs.fc }}
           CC: ${{ steps.setup-fortran.outputs.cc }}
-          CXX: ${{ steps.setup-fortran.outputs.cxx }}
         run: |
           ctest . --parallel 2 -C ${{ inputs.build_mode }} -V -E tfloatsattrs
         working-directory: ${{ runner.workspace }}/build