Autodetect the FFTW library

git-svn-id: http://svn.cactuscode.org/flesh/trunk@3652 17b73243-c579-4c4c-a9d2-2d5706c11dac

1 files changed, 65 insertions, 0 deletions

diff --git a/lib/make/extras/FFTW/setup.sh b/lib/make/extras/FFTW/setup.sh
new file mode 100755
index 00000000..40d026cd
--- /dev/null
+++ b/lib/make/extras/FFTW/setup.sh
@@ -0,0 +1,65 @@
+#! /bin/sh
+#/*@@
+#  @file   setup.sh
+#  @date   Wed 03 Mar 2004
+#  @author Erik Schnetter
+#  @desc
+#          Setup for an external FFTW installation
+#  @enddesc
+# @@*/
+
+choose_fftw=`echo $FFTW | tr '[:upper:]' '[:lower:]'`
+
+if [ "X$choose_fftw" = 'Xyes' ]; then
+
+echo 'Configuring with FFTW'
+
+# Work out FFTW's installation directory
+if [ -z "$FFTW_DIR" ]; then
+  echo '  FFTW selected but no FFTW_DIR set.  Checking some places...'
+  CCTK_Search FFTW_DIR '/usr /usr/local /usr/local/fftw /usr/local/packages/fftw /usr/local/apps/fftw' include/rfftw.h
+  if [ -z "$FFTW_DIR" ] ; then
+     echo '  Unable to locate the FFTW directory - please set FFTW_DIR'
+     exit 2
+  fi
+  echo "  Found a FFTW package in $FFTW_DIR"
+else
+  echo "  Using FFTW package in $FFTW_DIR"
+fi
+
+
+# Set platform-specific libraries
+if [ -z "$FFTW_LIBS" ]; then
+  if test -n "$MPI" -a "$MPI" != 'none' ; then
+    FFTW_LIBS='rfftw_mpi fftw_mpi $(MPI_LIBS) rfftw fftw m'
+  else
+    FFTW_LIBS='rfftw fftw m'
+  fi
+else
+  echo "  Using FFTW libraries '$FFTW_LIBS'"
+fi
+
+# Set the FFTW libs, libdirs and includedirs
+FFTW_LIB_DIRS='$(FFTW_DIR)/lib'
+FFTW_INC_DIRS='$(FFTW_DIR)/include'
+
+
+# Write the data out to the header and make files.
+CCTK_WriteLine cctk_Extradefs.h "#define CCTK_FFTW 1"
+
+CCTK_WriteLine make.extra.defn "FFTW_DIR      = $FFTW_DIR"
+CCTK_WriteLine make.extra.defn "FFTW_LIBS     = $FFTW_LIBS"
+CCTK_WriteLine make.extra.defn "FFTW_LIB_DIRS = $FFTW_LIB_DIRS"
+CCTK_WriteLine make.extra.defn "FFTW_INC_DIRS = $FFTW_INC_DIRS"
+CCTK_WriteLine make.extra.defn ''
+CCTK_WriteLine make.extra.defn 'LIBS         += $(FFTW_LIBS)'
+CCTK_WriteLine make.extra.defn 'LIBDIRS      += $(FFTW_LIB_DIRS)'
+CCTK_WriteLine make.extra.defn 'SYS_INC_DIRS += $(FFTW_INC_DIRS)'
+
+elif [ "X$choose_fftw" != 'Xno' -a "X$choose_fftw" != 'X' ]; then
+
+  echo "  Don't understand the setting \"FFTW=$FFTW\" !"
+  echo '  Please set it to either "yes" or "no", or leave it blank (same as "no") !'
+  exit 1
+
+fi