diff --git a/src/conversion/ccm/Allwmake b/src/conversion/ccm/Allwmake
index a3e067e1dc..da52586add 100755
--- a/src/conversion/ccm/Allwmake
+++ b/src/conversion/ccm/Allwmake
@@ -15,8 +15,13 @@ if [ "$WM_LABEL_SIZE" = 64 ]
 then
     # The libccmio uses int32_t.
     # The OpenFOAM adapter thus requires additional work for 64-bit labels.
-    echo "Skipping optional component libccm"
+    echo "Skipping optional 'libccm' adapter component"
     echo "    does not support 64-bit labels"
+elif [ "$WM_PRECISION_OPTION" = SP ]
+then
+    # The OpenFOAM adapter was originally only designed for 'double'
+    echo "Skipping optional 'libccm' adapter component"
+    echo "    was not originally designed for 'single precision' values"
 elif [ -e $CCMIO_ARCH_PATH/include/libccmio/ccmio.h \
     -a -e $CCMIO_ARCH_PATH/lib/libccmio.a ]
 then
diff --git a/src/fileFormats/starcd/STARCDCore.C b/src/fileFormats/starcd/STARCDCore.C
index 612b9c3091..7ea833b488 100644
--- a/src/fileFormats/starcd/STARCDCore.C
+++ b/src/fileFormats/starcd/STARCDCore.C
@@ -230,7 +230,7 @@ void Foam::fileFormats::STARCDCore::writePoints
 (
     Ostream& os,
     const pointField& points,
-    const double scaleFactor
+    const scalar scaleFactor
 )
 {
     writeHeader(os, HEADER_VRT);
diff --git a/src/finiteVolume/fields/fvPatchFields/derived/turbulentDFSEMInlet/turbulentDFSEMInletFvPatchVectorField.C b/src/finiteVolume/fields/fvPatchFields/derived/turbulentDFSEMInlet/turbulentDFSEMInletFvPatchVectorField.C
index e2bf45527f..5a42c9e0d8 100644
--- a/src/finiteVolume/fields/fvPatchFields/derived/turbulentDFSEMInlet/turbulentDFSEMInletFvPatchVectorField.C
+++ b/src/finiteVolume/fields/fvPatchFields/derived/turbulentDFSEMInlet/turbulentDFSEMInletFvPatchVectorField.C
@@ -1104,9 +1104,9 @@ void Foam::turbulentDFSEMInletFvPatchVectorField::write(Ostream& os) const
     fvPatchField<vector>::write(os);
     writeEntry("value", os);
     os.writeKeyword("delta") << delta_ << token::END_STATEMENT << nl;
-    writeEntryIfDifferent(os, "d", 1.0, d_);
-    writeEntryIfDifferent(os, "kappa", 0.41, kappa_);
-    writeEntryIfDifferent(os, "perturb", 1e-5, perturb_);
+    writeEntryIfDifferent<scalar>(os, "d", 1.0, d_);
+    writeEntryIfDifferent<scalar>(os, "kappa", 0.41, kappa_);
+    writeEntryIfDifferent<scalar>(os, "perturb", 1e-5, perturb_);
     writeEntryIfDifferent<label>(os, "nCellPerEddy", 5, nCellPerEddy_);
     writeEntryIfDifferent(os, "writeEddies", false, writeEddies_);