COMP: Created conditional Allwmake scripts for FFTW dependent applications

applications/solvers/DNS/dnsFoam/Allwmake

+#!/bin/sh
+cd ${0%/*} || exit 1    # run from this directory
+
+if [ -f "$FFTW_ARCH_PATH/include/fftw3.h" ] || \
+   [ "${FFTW_ARCH_PATH##*-}" = system -a -f "/usr/include/fftw3.h" ]
+then
+    wmake
+else
+    echo
+    echo "Skipping dnsFoam solver (no FFTW)"
+    echo
+fi
+
+#------------------------------------------------------------------------------

applications/utilities/preProcessing/boxTurb/Allwmake

+#!/bin/sh
+cd ${0%/*} || exit 1    # run from this directory
+
+if [ -f "$FFTW_ARCH_PATH/include/fftw3.h" ] || \
+   [ "${FFTW_ARCH_PATH##*-}" = system -a -f "/usr/include/fftw3.h" ]
+then
+    wmake
+else
+    echo
+    echo "Skipping boxTurb utility (no FFTW)"
+    echo
+fi
+
+#------------------------------------------------------------------------------