--- trunk/OOPSE-3.0/configure	2006/04/03 15:37:43	2682
+++ trunk/OOPSE-3.0/configure	2006/05/25 15:27:20	2772
@@ -312,7 +312,7 @@ ac_subst_vars='SHELL PATH_SEPARATOR PACKAGE_NAME PACKA
 # include <unistd.h>
 #endif"
 
-ac_subst_vars='SHELL PATH_SEPARATOR PACKAGE_NAME PACKAGE_TARNAME PACKAGE_VERSION PACKAGE_STRING PACKAGE_BUGREPORT exec_prefix prefix program_transform_name bindir sbindir libexecdir datadir sysconfdir sharedstatedir localstatedir libdir includedir oldincludedir infodir mandir build_alias host_alias target_alias DEFS ECHO_C ECHO_N ECHO_T LIBS build build_cpu build_vendor build_os host host_cpu host_vendor host_os PROGNAME debug CXX CXXFLAGS LDFLAGS CPPFLAGS ac_ct_CXX EXEEXT OBJEXT CC CFLAGS ac_ct_CC FC FCFLAGS ac_ct_FC CPP EGREP LN_S SET_MAKE RANLIB ac_ct_RANLIB PERLINTERP PERL_SHEBANG INSTALL_PROGRAM INSTALL_SCRIPT INSTALL_DATA AR PS FCFLAGS_F90 FCFLAGS_SRCEXT PREPDEFFLAG FCLIBS FC_FUNC FC_FUNC_ MOD F90_WORK_FILES_ARG MODDIRFLAG F90MODINCSPEC F90_MODULE_NAMES LIBOBJS POW_LIB CXXCPP __func__ MPI_LIB_DIR MPI_INC_DIR MPI_F90_INC MPI_LIB MPI_F90_LIB USE_MPI USE_CGAL CGAL_INC_DIR CGAL_LIB_DIR CGAL_RLIB_DIR CGAL_DEFINES CGAL_CXXFLAGS CGAL_LIBS DOXYGEN DOT DOC enable_dot enable_html_docs enable_latex_docs BATEXT MKINSTALLDIRS OOPSE OOPSE_HOME SUBDIRS LTLIBOBJS'
+ac_subst_vars='SHELL PATH_SEPARATOR PACKAGE_NAME PACKAGE_TARNAME PACKAGE_VERSION PACKAGE_STRING PACKAGE_BUGREPORT exec_prefix prefix program_transform_name bindir sbindir libexecdir datadir sysconfdir sharedstatedir localstatedir libdir includedir oldincludedir infodir mandir build_alias host_alias target_alias DEFS ECHO_C ECHO_N ECHO_T LIBS build build_cpu build_vendor build_os host host_cpu host_vendor host_os PROGNAME debug USE_SINGLE_PRECISION CXX CXXFLAGS LDFLAGS CPPFLAGS ac_ct_CXX EXEEXT OBJEXT CC CFLAGS ac_ct_CC FC FCFLAGS ac_ct_FC CPP EGREP LN_S SET_MAKE RANLIB ac_ct_RANLIB PERLINTERP PERL_SHEBANG INSTALL_PROGRAM INSTALL_SCRIPT INSTALL_DATA AR PS FCFLAGS_F90 FCFLAGS_SRCEXT PREPDEFFLAG FCLIBS FC_FUNC FC_FUNC_ MOD F90_WORK_FILES_ARG MODDIRFLAG F90MODINCSPEC F90_MODULE_NAMES ZLIB_INC_DIR ZLIB_LIB_DIR ZLIB FFTW_INC_DIR FFTW_LIB_DIR FFTW_LIBS LIBOBJS POW_LIB CXXCPP __func__ MPI_LIB_DIR MPI_INC_DIR MPI_F90_INC MPI_LIB MPI_F90_LIB USE_MPI USE_CGAL CGAL_INC_DIR CGAL_LIB_DIR CGAL_RLIB_DIR CGAL_DEFINES CGAL_CXXFLAGS CGAL_LIBS DOXYGEN DOT DOC enable_dot enable_html_docs enable_latex_docs BATEXT MKINSTALLDIRS OOPSE OOPSE_HOME SUBDIRS LTLIBOBJS'
 ac_subst_files=''
 
 # Initialize some variables set by options.
@@ -871,6 +871,8 @@ Optional Features:
   --enable-FEATURE[=ARG]  include FEATURE [ARG=yes]
   --enable-oopse-home=DIR      define oopse home dir PREFIX/oopse
   --enable-debug          Compile OOPSE in debug mode
+  --enable-single         compile OOPSE in single precision
+  --enable-float          synonym for --enable-single
   --enable-doxygen        enable documentation generation with doxygen (auto)
   --enable-dot            use 'dot' to generate graphs in doxygen (auto)
   --enable-html-docs      enable HTML generation with doxygen (yes)
@@ -881,9 +883,10 @@ Optional Packages:
   --without-PACKAGE       do not use PACKAGE (same as --with-PACKAGE=no)
   --with-perl-shebang     override what perl thinks is the way for the kernel
                           to start it (seldom needed)
-  --with-zlib=DIR root directory path of zlib installation defaults to
-                    /usr/local or /usr if not found in /usr/local
-  --without-zlib to disable zlib usage completely
+  --with-zlib=DIR         root directory path of zlib installation (defaults
+                          to /usr/local or /usr if not found in /usr/local)
+  --with-fftw=DIR         root directory path of fftw installation (defaults
+                          to /usr/local or /usr if not found in /usr/local)
   --with-mpi=<prefix>     compile with MPI installed in <prefix> [default=no]
   --with-cgal-makefile=FILE  CGAL makefile that should be used
 
@@ -1377,6 +1380,8 @@ ac_configure="$SHELL $ac_aux_dir/configure" # This sho
 
 
           ac_config_headers="$ac_config_headers src/config.h"
+
+
 
 
 
@@ -1424,12 +1429,66 @@ ac_configure="$SHELL $ac_aux_dir/configure" # This sho
 #
 
 
+
+
+
+
 # AC_F90_MODULE_NAMES
 # -------------------
 #
 # Figure out how the Fortran 90 compiler constructs module file names
 #
  # AC_F90_MODULE_NAMES
+
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+
 
 
 
@@ -1466,6 +1525,8 @@ ac_configure="$SHELL $ac_aux_dir/configure" # This sho
 
 
 
+
+
 # who am i
 # Make sure we can run config.sub.
 $ac_config_sub sun4 >/dev/null 2>&1 ||
@@ -1565,6 +1626,28 @@ fi
 fi
 
 
+# Check whether --enable-single or --disable-single was given.
+if test "${enable_single+set}" = set; then
+  enableval="$enable_single"
+  ok=$enableval
+else
+  ok=no
+fi;
+# Check whether --enable-float or --disable-float was given.
+if test "${enable_float+set}" = set; then
+  enableval="$enable_float"
+  ok=$enableval
+fi;
+if test "$ok" = "yes"; then
+
+cat >>confdefs.h <<\_ACEOF
+#define SINGLE_PRECISION 1
+_ACEOF
+
+        USE_SINGLE_PRECISION=yes
+
+fi
+
 # Checks for programs.
 ac_ext=cc
 ac_cpp='$CXXCPP $CPPFLAGS'
@@ -2726,7 +2809,7 @@ echo "$as_me:2729:" \
 
 
 # Provide some information about the compiler.
-echo "$as_me:2729:" \
+echo "$as_me:2812:" \
      "checking for Fortran compiler version" >&5
 ac_compiler=`set X $ac_compile; echo $2`
 { (eval echo "$as_me:$LINENO: \"$ac_compiler --version </dev/null >&5\"") >&5
@@ -3478,9 +3561,6 @@ if test "$AR" = "NONE"; then
 fi
 
 if test "$AR" = "NONE"; then
-  { { echo "$as_me:$LINENO: error: --> Can't find \`ar'!" >&5
-echo "$as_me: error: --> Can't find \`ar'!" >&2;}
-   { (exit 1); exit 1; }; }
   cat >confcache <<\_ACEOF
 # This file is a shell script that caches the results of configure
 # tests run on this system so they can be shared between configure
@@ -3977,7 +4057,7 @@ FCFLAGS="$FCFLAGS $ac_verb"
 # flags.
 ac_save_FFLAGS=$FCFLAGS
 FCFLAGS="$FCFLAGS $ac_verb"
-(eval echo $as_me:3980: \"$ac_link\") >&5
+(eval echo $as_me:4060: \"$ac_link\") >&5
 ac_fc_v_output=`eval $ac_link 5>&1 2>&1 | grep -v 'Driving:'`
 echo "$ac_fc_v_output" >&5
 FCFLAGS=$ac_save_FFLAGS
@@ -4055,7 +4135,7 @@ FCFLAGS="$FCFLAGS $ac_cv_prog_fc_v"
 # flags.
 ac_save_FFLAGS=$FCFLAGS
 FCFLAGS="$FCFLAGS $ac_cv_prog_fc_v"
-(eval echo $as_me:4058: \"$ac_link\") >&5
+(eval echo $as_me:4138: \"$ac_link\") >&5
 ac_fc_v_output=`eval $ac_link 5>&1 2>&1 | grep -v 'Driving:'`
 echo "$ac_fc_v_output" >&5
 FCFLAGS=$ac_save_FFLAGS
@@ -4791,7 +4871,7 @@ FCFLAGS="$FCFLAGS $ac_verb"
 # flags.
 ac_save_FFLAGS=$FCFLAGS
 FCFLAGS="$FCFLAGS $ac_verb"
-(eval echo $as_me:4794: \"$ac_link\") >&5
+(eval echo $as_me:4874: \"$ac_link\") >&5
 ac_fc_v_output=`eval $ac_link 5>&1 2>&1 | grep -v 'Driving:'`
 echo "$ac_fc_v_output" >&5
 FCFLAGS=$ac_save_FFLAGS
@@ -4869,7 +4949,7 @@ FCFLAGS="$FCFLAGS $ac_cv_prog_fc_v"
 # flags.
 ac_save_FFLAGS=$FCFLAGS
 FCFLAGS="$FCFLAGS $ac_cv_prog_fc_v"
-(eval echo $as_me:4872: \"$ac_link\") >&5
+(eval echo $as_me:4952: \"$ac_link\") >&5
 ac_fc_v_output=`eval $ac_link 5>&1 2>&1 | grep -v 'Driving:'`
 echo "$ac_fc_v_output" >&5
 FCFLAGS=$ac_save_FFLAGS
@@ -5746,27 +5826,25 @@ echo "$as_me:$LINENO: checking if zlib is wanted" >&5
 #
 # Handle user hints
 #
-echo "$as_me:$LINENO: checking if zlib is wanted" >&5
-echo $ECHO_N "checking if zlib is wanted... $ECHO_C" >&6
 
 # Check whether --with-zlib or --without-zlib was given.
 if test "${with_zlib+set}" = set; then
   withval="$with_zlib"
-  if test "$withval" != no ; then
-  echo "$as_me:$LINENO: result: yes" >&5
-echo "${ECHO_T}yes" >&6
-  if test -d "$withval"
-  then
-    ZLIB_HOME="$withval"
+  zlib_dir="$withval"
+else
+  		zlib_dir="not_set"
+fi;
+if test "$zlib_dir" != "no"; then
+
+if test "$zlib_dir" != "not_set" ; then
+  if test -d "$zlib_dir"
+  then
+    ZLIB_HOME="$zlib_dir"
   else
-    { echo "$as_me:$LINENO: WARNING: Sorry, $withval does not exist, checking usual places" >&5
-echo "$as_me: WARNING: Sorry, $withval does not exist, checking usual places" >&2;}
+    { echo "$as_me:$LINENO: WARNING: Sorry, $zlib_dir does not exist, checking usual places" >&5
+echo "$as_me: WARNING: Sorry, $zlib_dir does not exist, checking usual places" >&2;}
   fi
-else
-  echo "$as_me:$LINENO: result: no" >&5
-echo "${ECHO_T}no" >&6
 fi
-fi;
 
 ZLIB_HOME=/usr/local
 if test ! -f "${ZLIB_HOME}/include/zlib.h"
@@ -6019,19 +6097,101 @@ ac_compiler_gnu=$ac_cv_c_compiler_gnu
 ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
 ac_compiler_gnu=$ac_cv_c_compiler_gnu
 
-        if test "$zlib_cv_libz" = "yes" -a "$zlib_cv_zlib_h" = "yes"
-        then
-                #
-                # If both library and header were found, use them
-                #
 
-echo "$as_me:$LINENO: checking for inflateEnd in -lz" >&5
-echo $ECHO_N "checking for inflateEnd in -lz... $ECHO_C" >&6
-if test "${ac_cv_lib_z_inflateEnd+set}" = set; then
+        if test "$zlib_cv_libz" = "yes" -a "$zlib_cv_zlib_h" = "yes"; then
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_ZLIB_H 1
+_ACEOF
+
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_LIBZ 1
+_ACEOF
+
+                ZLIB_INC_DIR="${ZLIB_HOME}/include"
+                ZLIB_LIB_DIR="${ZLIB_HOME}/lib"
+                ZLIB="-lz"
+        else
+                echo "$as_me:$LINENO: checking zlib in ${ZLIB_HOME}" >&5
+echo $ECHO_N "checking zlib in ${ZLIB_HOME}... $ECHO_C" >&6
+                ZLIB_INC_DIR=
+                ZLIB_LIB_DIR=
+                ZLIB=
+                LDFLAGS="$ZLIB_OLD_LDFLAGS"
+                CPPFLAGS="$ZLIB_OLD_CPPFLAGS"
+                echo "$as_me:$LINENO: result: failed" >&5
+echo "${ECHO_T}failed" >&6
+	        echo ""
+	        echo "*********************************************************"
+                echo "* WARNING: Could not find a working zlib installation   *"
+                echo "* If you need OOPSE to be able to deal with compressed  *"
+                echo "* trajectory dump files be sure to specify a valid zlib *"
+	        echo "* installation with --with-zlib=DIR                     *"
+                echo "*                                                       *"
+                echo "* OOPSE will still work without zlib installed.         *"
+	        echo "*********************************************************"
+	        echo ""
+        fi
+
+
+
+fi
+fi
+
+#
+# Handle user hints
+#
+
+# Check whether --with-fftw or --without-fftw was given.
+if test "${with_fftw+set}" = set; then
+  withval="$with_fftw"
+  fftw_dir="$withval"
+else
+  		fftw_dir="not_set"
+fi;
+if test "$fftw_dir" != "no"; then
+
+if test "$fftw_dir" != "not_set" ; then
+  if test -d "$fftw_dir"
+  then
+    FFTW_HOME="$fftw_dir"
+  else
+    { echo "$as_me:$LINENO: WARNING: Sorry, $fftw_dir does not exist, checking usual places" >&5
+echo "$as_me: WARNING: Sorry, $fftw_dir does not exist, checking usual places" >&2;}
+  fi
+fi
+
+FFTW_HOME=/usr/local
+if test ! -f "${FFTW_HOME}/include/fftw3.h" -o -f "${FFTW_HOME}/include/fftw.h" -o  -f "${FFTW_HOME}/include/dfftw.h"
+then
+        FFTW_HOME=/usr
+fi
+
+#
+# Locate fftw, if wanted
+#
+if test -n "${FFTW_HOME}"
+then
+        FFTW_OLD_LDFLAGS=$LDFLAGS
+        FFTW_OLD_CPPFLAGS=$LDFLAGS
+        LDFLAGS="$LDFLAGS -L${FFTW_HOME}/lib"
+        CPPFLAGS="$CPPFLAGS -I${FFTW_HOME}/include"
+
+
+        ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+        echo "$as_me:$LINENO: checking for fftw_execute in -lfftw3" >&5
+echo $ECHO_N "checking for fftw_execute in -lfftw3... $ECHO_C" >&6
+if test "${ac_cv_lib_fftw3_fftw_execute+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
   ac_check_lib_save_LIBS=$LIBS
-LIBS="-lz  $LIBS"
+LIBS="-lfftw3  $LIBS"
 cat >conftest.$ac_ext <<_ACEOF
 /* confdefs.h.  */
 _ACEOF
@@ -6045,7 +6205,7 @@ char inflateEnd ();
 #endif
 /* We use char because int might match the return type of a gcc2
    builtin and then its argument prototype would still apply.  */
-char inflateEnd ();
+char fftw_execute ();
 #ifdef FC_DUMMY_MAIN
 #ifndef FC_DUMMY_MAIN_EQ_F77
 #  ifdef __cplusplus
@@ -6057,7 +6217,7 @@ inflateEnd ();
 int
 main ()
 {
-inflateEnd ();
+fftw_execute ();
   ;
   return 0;
 }
@@ -6084,47 +6244,686 @@ if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
   ac_status=$?
   echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
-  ac_cv_lib_z_inflateEnd=yes
+  ac_cv_lib_fftw3_fftw_execute=yes
 else
   echo "$as_me: failed program was:" >&5
 sed 's/^/| /' conftest.$ac_ext >&5
 
-ac_cv_lib_z_inflateEnd=no
+ac_cv_lib_fftw3_fftw_execute=no
 fi
 rm -f conftest.err conftest.$ac_objext \
       conftest$ac_exeext conftest.$ac_ext
 LIBS=$ac_check_lib_save_LIBS
 fi
-echo "$as_me:$LINENO: result: $ac_cv_lib_z_inflateEnd" >&5
-echo "${ECHO_T}$ac_cv_lib_z_inflateEnd" >&6
-if test $ac_cv_lib_z_inflateEnd = yes; then
-  cat >>confdefs.h <<_ACEOF
-#define HAVE_LIBZ 1
-_ACEOF
+echo "$as_me:$LINENO: result: $ac_cv_lib_fftw3_fftw_execute" >&5
+echo "${ECHO_T}$ac_cv_lib_fftw3_fftw_execute" >&6
+if test $ac_cv_lib_fftw3_fftw_execute = yes; then
+  fftw_cv_libfftw3=yes
+else
+  fftw_cv_libfftw3=no
+fi
 
-  LIBS="-lz $LIBS"
+        if test "${ac_cv_header_fftw3_h+set}" = set; then
+  echo "$as_me:$LINENO: checking for fftw3.h" >&5
+echo $ECHO_N "checking for fftw3.h... $ECHO_C" >&6
+if test "${ac_cv_header_fftw3_h+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+fi
+echo "$as_me:$LINENO: result: $ac_cv_header_fftw3_h" >&5
+echo "${ECHO_T}$ac_cv_header_fftw3_h" >&6
+else
+  # Is the header compilable?
+echo "$as_me:$LINENO: checking fftw3.h usability" >&5
+echo $ECHO_N "checking fftw3.h usability... $ECHO_C" >&6
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+$ac_includes_default
+#include <fftw3.h>
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+	 { ac_try='test -z "$ac_c_werror_flag"
+			 || test ! -s conftest.err'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } &&
+	 { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_header_compiler=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
 
+ac_header_compiler=no
 fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
+echo "${ECHO_T}$ac_header_compiler" >&6
 
-                echo "$as_me:$LINENO: checking zlib in ${ZLIB_HOME}" >&5
-echo $ECHO_N "checking zlib in ${ZLIB_HOME}... $ECHO_C" >&6
-                echo "$as_me:$LINENO: result: ok" >&5
-echo "${ECHO_T}ok" >&6
+# Is the header present?
+echo "$as_me:$LINENO: checking fftw3.h presence" >&5
+echo $ECHO_N "checking fftw3.h presence... $ECHO_C" >&6
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+#include <fftw3.h>
+_ACEOF
+if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
+  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } >/dev/null; then
+  if test -s conftest.err; then
+    ac_cpp_err=$ac_c_preproc_warn_flag
+    ac_cpp_err=$ac_cpp_err$ac_c_werror_flag
+  else
+    ac_cpp_err=
+  fi
+else
+  ac_cpp_err=yes
+fi
+if test -z "$ac_cpp_err"; then
+  ac_header_preproc=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+  ac_header_preproc=no
+fi
+rm -f conftest.err conftest.$ac_ext
+echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
+echo "${ECHO_T}$ac_header_preproc" >&6
+
+# So?  What about this header?
+case $ac_header_compiler:$ac_header_preproc:$ac_c_preproc_warn_flag in
+  yes:no: )
+    { echo "$as_me:$LINENO: WARNING: fftw3.h: accepted by the compiler, rejected by the preprocessor!" >&5
+echo "$as_me: WARNING: fftw3.h: accepted by the compiler, rejected by the preprocessor!" >&2;}
+    { echo "$as_me:$LINENO: WARNING: fftw3.h: proceeding with the compiler's result" >&5
+echo "$as_me: WARNING: fftw3.h: proceeding with the compiler's result" >&2;}
+    ac_header_preproc=yes
+    ;;
+  no:yes:* )
+    { echo "$as_me:$LINENO: WARNING: fftw3.h: present but cannot be compiled" >&5
+echo "$as_me: WARNING: fftw3.h: present but cannot be compiled" >&2;}
+    { echo "$as_me:$LINENO: WARNING: fftw3.h:     check for missing prerequisite headers?" >&5
+echo "$as_me: WARNING: fftw3.h:     check for missing prerequisite headers?" >&2;}
+    { echo "$as_me:$LINENO: WARNING: fftw3.h: see the Autoconf documentation" >&5
+echo "$as_me: WARNING: fftw3.h: see the Autoconf documentation" >&2;}
+    { echo "$as_me:$LINENO: WARNING: fftw3.h:     section \"Present But Cannot Be Compiled\"" >&5
+echo "$as_me: WARNING: fftw3.h:     section \"Present But Cannot Be Compiled\"" >&2;}
+    { echo "$as_me:$LINENO: WARNING: fftw3.h: proceeding with the preprocessor's result" >&5
+echo "$as_me: WARNING: fftw3.h: proceeding with the preprocessor's result" >&2;}
+    { echo "$as_me:$LINENO: WARNING: fftw3.h: in the future, the compiler will take precedence" >&5
+echo "$as_me: WARNING: fftw3.h: in the future, the compiler will take precedence" >&2;}
+    (
+      cat <<\_ASBOX
+## ------------------------------ ##
+## Report this to gezelter@nd.edu ##
+## ------------------------------ ##
+_ASBOX
+    ) |
+      sed "s/^/$as_me: WARNING:     /" >&2
+    ;;
+esac
+echo "$as_me:$LINENO: checking for fftw3.h" >&5
+echo $ECHO_N "checking for fftw3.h... $ECHO_C" >&6
+if test "${ac_cv_header_fftw3_h+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  ac_cv_header_fftw3_h=$ac_header_preproc
+fi
+echo "$as_me:$LINENO: result: $ac_cv_header_fftw3_h" >&5
+echo "${ECHO_T}$ac_cv_header_fftw3_h" >&6
+
+fi
+if test $ac_cv_header_fftw3_h = yes; then
+  fftw_cv_fftw3_h=yes
+else
+  fftw_cv_fftw3_h=no
+fi
+
+
+        if test "$fftw_cv_libfftw3" = "no" -o "$fftw_cv_fftw3_h" = "no"
+        then
+                echo "$as_me:$LINENO: checking for fftwnd_one in -lfftw" >&5
+echo $ECHO_N "checking for fftwnd_one in -lfftw... $ECHO_C" >&6
+if test "${ac_cv_lib_fftw_fftwnd_one+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lfftw  $LIBS"
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+/* Override any gcc2 internal prototype to avoid an error.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+/* We use char because int might match the return type of a gcc2
+   builtin and then its argument prototype would still apply.  */
+char fftwnd_one ();
+#ifdef FC_DUMMY_MAIN
+#ifndef FC_DUMMY_MAIN_EQ_F77
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int FC_DUMMY_MAIN() { return 1; }
+#endif
+#endif
+int
+main ()
+{
+fftwnd_one ();
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+  (eval $ac_link) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+	 { ac_try='test -z "$ac_c_werror_flag"
+			 || test ! -s conftest.err'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } &&
+	 { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_lib_fftw_fftwnd_one=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_lib_fftw_fftwnd_one=no
+fi
+rm -f conftest.err conftest.$ac_objext \
+      conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+echo "$as_me:$LINENO: result: $ac_cv_lib_fftw_fftwnd_one" >&5
+echo "${ECHO_T}$ac_cv_lib_fftw_fftwnd_one" >&6
+if test $ac_cv_lib_fftw_fftwnd_one = yes; then
+  fftw_cv_libfftw=yes
+else
+  fftw_cv_libfftw=no
+fi
+
+                if test "${ac_cv_header_fftw_h+set}" = set; then
+  echo "$as_me:$LINENO: checking for fftw.h" >&5
+echo $ECHO_N "checking for fftw.h... $ECHO_C" >&6
+if test "${ac_cv_header_fftw_h+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+fi
+echo "$as_me:$LINENO: result: $ac_cv_header_fftw_h" >&5
+echo "${ECHO_T}$ac_cv_header_fftw_h" >&6
+else
+  # Is the header compilable?
+echo "$as_me:$LINENO: checking fftw.h usability" >&5
+echo $ECHO_N "checking fftw.h usability... $ECHO_C" >&6
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+$ac_includes_default
+#include <fftw.h>
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+	 { ac_try='test -z "$ac_c_werror_flag"
+			 || test ! -s conftest.err'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } &&
+	 { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_header_compiler=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_header_compiler=no
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
+echo "${ECHO_T}$ac_header_compiler" >&6
+
+# Is the header present?
+echo "$as_me:$LINENO: checking fftw.h presence" >&5
+echo $ECHO_N "checking fftw.h presence... $ECHO_C" >&6
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+#include <fftw.h>
+_ACEOF
+if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
+  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } >/dev/null; then
+  if test -s conftest.err; then
+    ac_cpp_err=$ac_c_preproc_warn_flag
+    ac_cpp_err=$ac_cpp_err$ac_c_werror_flag
+  else
+    ac_cpp_err=
+  fi
+else
+  ac_cpp_err=yes
+fi
+if test -z "$ac_cpp_err"; then
+  ac_header_preproc=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+  ac_header_preproc=no
+fi
+rm -f conftest.err conftest.$ac_ext
+echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
+echo "${ECHO_T}$ac_header_preproc" >&6
+
+# So?  What about this header?
+case $ac_header_compiler:$ac_header_preproc:$ac_c_preproc_warn_flag in
+  yes:no: )
+    { echo "$as_me:$LINENO: WARNING: fftw.h: accepted by the compiler, rejected by the preprocessor!" >&5
+echo "$as_me: WARNING: fftw.h: accepted by the compiler, rejected by the preprocessor!" >&2;}
+    { echo "$as_me:$LINENO: WARNING: fftw.h: proceeding with the compiler's result" >&5
+echo "$as_me: WARNING: fftw.h: proceeding with the compiler's result" >&2;}
+    ac_header_preproc=yes
+    ;;
+  no:yes:* )
+    { echo "$as_me:$LINENO: WARNING: fftw.h: present but cannot be compiled" >&5
+echo "$as_me: WARNING: fftw.h: present but cannot be compiled" >&2;}
+    { echo "$as_me:$LINENO: WARNING: fftw.h:     check for missing prerequisite headers?" >&5
+echo "$as_me: WARNING: fftw.h:     check for missing prerequisite headers?" >&2;}
+    { echo "$as_me:$LINENO: WARNING: fftw.h: see the Autoconf documentation" >&5
+echo "$as_me: WARNING: fftw.h: see the Autoconf documentation" >&2;}
+    { echo "$as_me:$LINENO: WARNING: fftw.h:     section \"Present But Cannot Be Compiled\"" >&5
+echo "$as_me: WARNING: fftw.h:     section \"Present But Cannot Be Compiled\"" >&2;}
+    { echo "$as_me:$LINENO: WARNING: fftw.h: proceeding with the preprocessor's result" >&5
+echo "$as_me: WARNING: fftw.h: proceeding with the preprocessor's result" >&2;}
+    { echo "$as_me:$LINENO: WARNING: fftw.h: in the future, the compiler will take precedence" >&5
+echo "$as_me: WARNING: fftw.h: in the future, the compiler will take precedence" >&2;}
+    (
+      cat <<\_ASBOX
+## ------------------------------ ##
+## Report this to gezelter@nd.edu ##
+## ------------------------------ ##
+_ASBOX
+    ) |
+      sed "s/^/$as_me: WARNING:     /" >&2
+    ;;
+esac
+echo "$as_me:$LINENO: checking for fftw.h" >&5
+echo $ECHO_N "checking for fftw.h... $ECHO_C" >&6
+if test "${ac_cv_header_fftw_h+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  ac_cv_header_fftw_h=$ac_header_preproc
+fi
+echo "$as_me:$LINENO: result: $ac_cv_header_fftw_h" >&5
+echo "${ECHO_T}$ac_cv_header_fftw_h" >&6
+
+fi
+if test $ac_cv_header_fftw_h = yes; then
+  fftw_cv_fftw_h=yes
+else
+  fftw_cv_fftw_h=no
+fi
+
+
+                if test "$fftw_cv_libfftw" = "no" -o "$fftw_cv_fftw_h" = "no"
+                then
+                        echo "$as_me:$LINENO: checking for fftwnd_one in -ldfftw" >&5
+echo $ECHO_N "checking for fftwnd_one in -ldfftw... $ECHO_C" >&6
+if test "${ac_cv_lib_dfftw_fftwnd_one+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-ldfftw  $LIBS"
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+/* Override any gcc2 internal prototype to avoid an error.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+/* We use char because int might match the return type of a gcc2
+   builtin and then its argument prototype would still apply.  */
+char fftwnd_one ();
+#ifdef FC_DUMMY_MAIN
+#ifndef FC_DUMMY_MAIN_EQ_F77
+#  ifdef __cplusplus
+     extern "C"
+#  endif
+   int FC_DUMMY_MAIN() { return 1; }
+#endif
+#endif
+int
+main ()
+{
+fftwnd_one ();
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+  (eval $ac_link) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+	 { ac_try='test -z "$ac_c_werror_flag"
+			 || test ! -s conftest.err'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } &&
+	 { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_lib_dfftw_fftwnd_one=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_lib_dfftw_fftwnd_one=no
+fi
+rm -f conftest.err conftest.$ac_objext \
+      conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+echo "$as_me:$LINENO: result: $ac_cv_lib_dfftw_fftwnd_one" >&5
+echo "${ECHO_T}$ac_cv_lib_dfftw_fftwnd_one" >&6
+if test $ac_cv_lib_dfftw_fftwnd_one = yes; then
+  fftw_cv_libdfftw=yes
+else
+  fftw_cv_libdfftw=no
+fi
+
+                        if test "${ac_cv_header_dfftw_h+set}" = set; then
+  echo "$as_me:$LINENO: checking for dfftw.h" >&5
+echo $ECHO_N "checking for dfftw.h... $ECHO_C" >&6
+if test "${ac_cv_header_dfftw_h+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+fi
+echo "$as_me:$LINENO: result: $ac_cv_header_dfftw_h" >&5
+echo "${ECHO_T}$ac_cv_header_dfftw_h" >&6
+else
+  # Is the header compilable?
+echo "$as_me:$LINENO: checking dfftw.h usability" >&5
+echo $ECHO_N "checking dfftw.h usability... $ECHO_C" >&6
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+$ac_includes_default
+#include <dfftw.h>
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+	 { ac_try='test -z "$ac_c_werror_flag"
+			 || test ! -s conftest.err'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } &&
+	 { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_header_compiler=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_header_compiler=no
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
+echo "${ECHO_T}$ac_header_compiler" >&6
+
+# Is the header present?
+echo "$as_me:$LINENO: checking dfftw.h presence" >&5
+echo $ECHO_N "checking dfftw.h presence... $ECHO_C" >&6
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+#include <dfftw.h>
+_ACEOF
+if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
+  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } >/dev/null; then
+  if test -s conftest.err; then
+    ac_cpp_err=$ac_c_preproc_warn_flag
+    ac_cpp_err=$ac_cpp_err$ac_c_werror_flag
+  else
+    ac_cpp_err=
+  fi
+else
+  ac_cpp_err=yes
+fi
+if test -z "$ac_cpp_err"; then
+  ac_header_preproc=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+  ac_header_preproc=no
+fi
+rm -f conftest.err conftest.$ac_ext
+echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
+echo "${ECHO_T}$ac_header_preproc" >&6
+
+# So?  What about this header?
+case $ac_header_compiler:$ac_header_preproc:$ac_c_preproc_warn_flag in
+  yes:no: )
+    { echo "$as_me:$LINENO: WARNING: dfftw.h: accepted by the compiler, rejected by the preprocessor!" >&5
+echo "$as_me: WARNING: dfftw.h: accepted by the compiler, rejected by the preprocessor!" >&2;}
+    { echo "$as_me:$LINENO: WARNING: dfftw.h: proceeding with the compiler's result" >&5
+echo "$as_me: WARNING: dfftw.h: proceeding with the compiler's result" >&2;}
+    ac_header_preproc=yes
+    ;;
+  no:yes:* )
+    { echo "$as_me:$LINENO: WARNING: dfftw.h: present but cannot be compiled" >&5
+echo "$as_me: WARNING: dfftw.h: present but cannot be compiled" >&2;}
+    { echo "$as_me:$LINENO: WARNING: dfftw.h:     check for missing prerequisite headers?" >&5
+echo "$as_me: WARNING: dfftw.h:     check for missing prerequisite headers?" >&2;}
+    { echo "$as_me:$LINENO: WARNING: dfftw.h: see the Autoconf documentation" >&5
+echo "$as_me: WARNING: dfftw.h: see the Autoconf documentation" >&2;}
+    { echo "$as_me:$LINENO: WARNING: dfftw.h:     section \"Present But Cannot Be Compiled\"" >&5
+echo "$as_me: WARNING: dfftw.h:     section \"Present But Cannot Be Compiled\"" >&2;}
+    { echo "$as_me:$LINENO: WARNING: dfftw.h: proceeding with the preprocessor's result" >&5
+echo "$as_me: WARNING: dfftw.h: proceeding with the preprocessor's result" >&2;}
+    { echo "$as_me:$LINENO: WARNING: dfftw.h: in the future, the compiler will take precedence" >&5
+echo "$as_me: WARNING: dfftw.h: in the future, the compiler will take precedence" >&2;}
+    (
+      cat <<\_ASBOX
+## ------------------------------ ##
+## Report this to gezelter@nd.edu ##
+## ------------------------------ ##
+_ASBOX
+    ) |
+      sed "s/^/$as_me: WARNING:     /" >&2
+    ;;
+esac
+echo "$as_me:$LINENO: checking for dfftw.h" >&5
+echo $ECHO_N "checking for dfftw.h... $ECHO_C" >&6
+if test "${ac_cv_header_dfftw_h+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  ac_cv_header_dfftw_h=$ac_header_preproc
+fi
+echo "$as_me:$LINENO: result: $ac_cv_header_dfftw_h" >&5
+echo "${ECHO_T}$ac_cv_header_dfftw_h" >&6
+
+fi
+if test $ac_cv_header_dfftw_h = yes; then
+  fftw_cv_dfftw_h=yes
+else
+  fftw_cv_dfftw_h=no
+fi
+
+
+                fi
+        fi
+        ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+        if test "$fftw_cv_libfftw3" = "yes" -a "$fftw_cv_fftw3_h" = "yes"
+        then
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_FFTW3_H 1
+_ACEOF
+
+                FFTW_INC_DIR="${FFTW_HOME}/include"
+                FFTW_LIB_DIR="${FFTW_HOME}/lib"
+                FFTW_LIBS="-lfftw3"
         else
-                #
-                # If either header or library was not found, revert and bomb
-                #
-                echo "$as_me:$LINENO: checking zlib in ${ZLIB_HOME}" >&5
-echo $ECHO_N "checking zlib in ${ZLIB_HOME}... $ECHO_C" >&6
-                LDFLAGS="$ZLIB_OLD_LDFLAGS"
-                CPPFLAGS="$ZLIB_OLD_CPPFLAGS"
+        if test "$fftw_cv_libfftw" = "yes" -a "$fftw_cv_fftw_h" = "yes"
+        then
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_FFTW_H 1
+_ACEOF
+
+                FFTW_INC_DIR="${FFTW_HOME}/include"
+                FFTW_LIB_DIR="${FFTW_HOME}/lib"
+                FFTW_LIBS="-lfftw"
+        else
+        if test "$fftw_cv_libdfftw" = "yes" -a "$fftw_cv_dfftw_h" = "yes"
+        then
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_DFFTW_H 1
+_ACEOF
+
+                FFTW_INC_DIR="${FFTW_HOME}/include"
+                FFTW_LIB_DIR="${FFTW_HOME}/lib"
+                FFTW_LIBS="-ldfftw"
+        else
+                echo "$as_me:$LINENO: checking fftw in ${FFTW_HOME}" >&5
+echo $ECHO_N "checking fftw in ${FFTW_HOME}... $ECHO_C" >&6
+                FFTW_INC_DIR=
+                FFTW_LIB_DIR=
+                FFTW_LIBS=
+                LDFLAGS="$FFTW_OLD_LDFLAGS"
+                CPPFLAGS="$FFTW_OLD_CPPFLAGS"
                 echo "$as_me:$LINENO: result: failed" >&5
 echo "${ECHO_T}failed" >&6
-                { { echo "$as_me:$LINENO: error: either specify a valid zlib installation with --with-zlib=DIR or disable zlib usage with --without-zlib" >&5
-echo "$as_me: error: either specify a valid zlib installation with --with-zlib=DIR or disable zlib usage with --without-zlib" >&2;}
-   { (exit 1); exit 1; }; }
+	echo ""
+	echo "*********************************************************"
+        echo "* WARNING: Could not find a working FFTW installation   *"
+        echo "* If you need the staticProps program to be able to     *"
+        echo "* compute undulation spectra, be sure to specify a      *"
+	echo "* valid fftw installation with --with-fftw=DIR          *"
+        echo "*                                                       *"
+        echo "* OOPSE will still work without fftw installed.         *"
+	echo "*********************************************************"
+	echo ""
         fi
+        fi
+        fi
+
+
+
 fi
+fi
 
 
 
@@ -11137,12 +11936,12 @@ if test "$ac_test_FCFLAGS" != "set"; then
 # Try to determine "good" native compiler flags if none specified on command
 # line
 
-if test "$ac_test_FCFLAGS" != "set"; then
+if test "$ac_test_FFLAGS" != "set"; then
   FCFLAGS=""
   case "${host_cpu}-${host_os}" in
 
   *linux*) if test "$FC" = ifc -o "$FC" = ifort; then
-                    FCFLAGS="-O"
+                    FCFLAGS="-O3 -ip -no-prec-div -cxxlib-icc"
                 fi;;
    rs6000*-aix*)  if test "$FC" = xlf90 -o "$FC" = f90 -o "$FC" = xlf95; then
                     FCFLAGS="-O3 -qarch=pwrx -qtune=pwrx -qansialias -w"
@@ -11163,6 +11962,9 @@ if test "$ac_test_FCFLAGS" != "set"; then
    *darwin*)
 	if test "$FC" = f90 -o "$FC" = xlf90 -o "$FC" = xlf95; then
         	FCFLAGS="-qthreaded -O -qtune=auto -qarch=auto -qunroll=auto"
+        fi
+	if test "$FC" = ifort; then
+        	FCFLAGS="-O3 -ip -no-prec-dev -mdynamic-no-pic"
         fi;;
   esac
 
@@ -11322,6 +12124,9 @@ if test "$ac_test_CFLAGS" != "set"; then
    *darwin*)
 	if test "$CC" = xlc -o "$CC" = cc; then
         	CFLAGS="-qthreaded -O -qtune=auto -qarch=auto -qunroll=auto -qaltivec"
+        fi
+	if test "$CC" = icc; then
+        	CFLAGS="-O3 -ip -no-prec-div -mdynamic-no-pic"
         fi;;
   esac
 
@@ -11776,6 +12581,9 @@ if test "$ac_test_CXXFLAGS" != "set"; then
    *darwin*)
 	if test "$CXX" = xlc++ -o "$CXX" = xlC ; then
         	CXXFLAGS="-qthreaded -O -qtune=auto -qarch=auto -qunroll=auto -qaltivec"
+        fi
+	if test "$CXX" = icpc; then
+        	CXXFLAGS="-O3 -ip -no-prec-div -mdynamic-no-pic"
         fi;;
   esac
 
@@ -12219,6 +13027,16 @@ have_mpif_h=0
 
 echo "$as_me:$LINENO: checking whether mpif.h is usable" >&5
 echo $ECHO_N "checking whether mpif.h is usable... $ECHO_C" >&6
+
+
+ac_ext=${FC_SRCEXT-f}
+ac_compile='$FC -c $FCFLAGS $FCFLAGS_SRCEXT conftest.$ac_ext >&5'
+ac_link='$FC -o conftest$ac_exeext $FCFLAGS $LDFLAGS $FCFLAGS_SRCEXT conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_fc_compiler_gnu
+
+ac_save_ext=$ac_ext
+ac_ext=F90
+ac_save_FCFLAGS=$FCFLAGS
 have_mpif_h=0
 rm -f conftest*
 cat >conftest.$ac_ext <<EOF
@@ -12248,7 +13066,15 @@ fi
 _ACEOF
 
 fi
+FCFLAGS=$ac_save_FCFLAGS
+ac_ext=$ac_save_ext
+ac_ext=cc
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 
+
 ac_ext=c
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
@@ -12256,7 +13082,7 @@ LDFLAGS="${LDFLAGS} -L${MPI_LIB_DIR} "
 ac_compiler_gnu=$ac_cv_c_compiler_gnu
 
 ac_save_LDFLAGS=$LDFLAGS
-LDFLAGS="${LDFLAGS} -L${MPI_LIB_DIR} "
+LDFLAGS="-L${MPI_LIB_DIR} ${LDFLAGS} "
 
 if test x = x"$MPI_LIB"; then
         echo "$as_me:$LINENO: checking for MPI_Init in -lmpich" >&5
@@ -12336,14 +13162,15 @@ if test x = x"$MPI_LIB"; then
 fi
 
 fi
+$as_unset ac_cv_lib_mpich_MPI_Init
 if test x = x"$MPI_LIB"; then
-        echo "$as_me:$LINENO: checking for MPI_Init in -lmpi" >&5
-echo $ECHO_N "checking for MPI_Init in -lmpi... $ECHO_C" >&6
-if test "${ac_cv_lib_mpi_MPI_Init+set}" = set; then
+        echo "$as_me:$LINENO: checking for MPI_Init in -lpmpich" >&5
+echo $ECHO_N "checking for MPI_Init in -lpmpich... $ECHO_C" >&6
+if test "${ac_cv_lib_pmpich_MPI_Init+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
   ac_check_lib_save_LIBS=$LIBS
-LIBS="-lmpi  $LIBS"
+LIBS="-lpmpich -lmpich -lpmpich -lmpich $LIBS"
 cat >conftest.$ac_ext <<_ACEOF
 /* confdefs.h.  */
 _ACEOF
@@ -12396,25 +13223,24 @@ if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
   ac_status=$?
   echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
-  ac_cv_lib_mpi_MPI_Init=yes
+  ac_cv_lib_pmpich_MPI_Init=yes
 else
   echo "$as_me: failed program was:" >&5
 sed 's/^/| /' conftest.$ac_ext >&5
 
-ac_cv_lib_mpi_MPI_Init=no
+ac_cv_lib_pmpich_MPI_Init=no
 fi
 rm -f conftest.err conftest.$ac_objext \
       conftest$ac_exeext conftest.$ac_ext
 LIBS=$ac_check_lib_save_LIBS
 fi
-echo "$as_me:$LINENO: result: $ac_cv_lib_mpi_MPI_Init" >&5
-echo "${ECHO_T}$ac_cv_lib_mpi_MPI_Init" >&6
-if test $ac_cv_lib_mpi_MPI_Init = yes; then
-  MPI_LIB="-lmpi"
+echo "$as_me:$LINENO: result: $ac_cv_lib_pmpich_MPI_Init" >&5
+echo "${ECHO_T}$ac_cv_lib_pmpich_MPI_Init" >&6
+if test $ac_cv_lib_pmpich_MPI_Init = yes; then
+  MPI_LIB="-lpmpich -lmpich -lpmpich -lmpich"
 fi
 
 fi
-$as_unset ac_cv_lib_mpi_MPI_Init
 if test x = x"$MPI_LIB"; then
         echo "$as_me:$LINENO: checking for MPI_Init in -lmpi" >&5
 echo $ECHO_N "checking for MPI_Init in -lmpi... $ECHO_C" >&6
@@ -12422,7 +13248,7 @@ LIBS="-lmpi "-llam" $LIBS"
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
   ac_check_lib_save_LIBS=$LIBS
-LIBS="-lmpi "-llam" $LIBS"
+LIBS="-lmpi  $LIBS"
 cat >conftest.$ac_ext <<_ACEOF
 /* confdefs.h.  */
 _ACEOF
@@ -12489,19 +13315,19 @@ if test $ac_cv_lib_mpi_MPI_Init = yes; then
 echo "$as_me:$LINENO: result: $ac_cv_lib_mpi_MPI_Init" >&5
 echo "${ECHO_T}$ac_cv_lib_mpi_MPI_Init" >&6
 if test $ac_cv_lib_mpi_MPI_Init = yes; then
-  MPI_LIB="-lmpi -llam"
+  MPI_LIB="-lmpi"
 fi
 
 fi
-$as_unset ac_cv_lib_mpich_MPI_Init
+$as_unset ac_cv_lib_mpi_MPI_Init
 if test x = x"$MPI_LIB"; then
-        echo "$as_me:$LINENO: checking for MPI_Init in -lmpich" >&5
-echo $ECHO_N "checking for MPI_Init in -lmpich... $ECHO_C" >&6
-if test "${ac_cv_lib_mpich_MPI_Init+set}" = set; then
+        echo "$as_me:$LINENO: checking for MPI_Init in -lmpi" >&5
+echo $ECHO_N "checking for MPI_Init in -lmpi... $ECHO_C" >&6
+if test "${ac_cv_lib_mpi_MPI_Init+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
   ac_check_lib_save_LIBS=$LIBS
-LIBS="-lpmpich "-lmpich" $LIBS"
+LIBS="-lmpi -llam $LIBS"
 cat >conftest.$ac_ext <<_ACEOF
 /* confdefs.h.  */
 _ACEOF
@@ -12554,25 +13380,24 @@ if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
   ac_status=$?
   echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
-  ac_cv_lib_mpich_MPI_Init=yes
+  ac_cv_lib_mpi_MPI_Init=yes
 else
   echo "$as_me: failed program was:" >&5
 sed 's/^/| /' conftest.$ac_ext >&5
 
-ac_cv_lib_mpich_MPI_Init=no
+ac_cv_lib_mpi_MPI_Init=no
 fi
 rm -f conftest.err conftest.$ac_objext \
       conftest$ac_exeext conftest.$ac_ext
 LIBS=$ac_check_lib_save_LIBS
 fi
-echo "$as_me:$LINENO: result: $ac_cv_lib_mpich_MPI_Init" >&5
-echo "${ECHO_T}$ac_cv_lib_mpich_MPI_Init" >&6
-if test $ac_cv_lib_mpich_MPI_Init = yes; then
-  MPI_LIB="-lpmpich -lmpich"
+echo "$as_me:$LINENO: result: $ac_cv_lib_mpi_MPI_Init" >&5
+echo "${ECHO_T}$ac_cv_lib_mpi_MPI_Init" >&6
+if test $ac_cv_lib_mpi_MPI_Init = yes; then
+  MPI_LIB="-lmpi -llam"
 fi
 
 fi
-
 $as_unset ac_cv_lib_mpi_MPI_Init
 if test x = x"$MPI_LIB"; then
 echo "$as_me:$LINENO: checking for MPI_Init in -lmpi" >&5
@@ -13134,7 +13959,6 @@ CGAL_RLIB_DIR=${CGAL_RLIBDIR}
 
 
 
-
 # Check whether --enable-doxygen or --disable-doxygen was given.
 if test "${enable_doxygen+set}" = set; then
   enableval="$enable_doxygen"
@@ -13920,6 +14744,7 @@ s,@CXX@,$CXX,;t t
 s,@host_os@,$host_os,;t t
 s,@PROGNAME@,$PROGNAME,;t t
 s,@debug@,$debug,;t t
+s,@USE_SINGLE_PRECISION@,$USE_SINGLE_PRECISION,;t t
 s,@CXX@,$CXX,;t t
 s,@CXXFLAGS@,$CXXFLAGS,;t t
 s,@LDFLAGS@,$LDFLAGS,;t t
@@ -13957,6 +14782,12 @@ s,@LIBOBJS@,$LIBOBJS,;t t
 s,@MODDIRFLAG@,$MODDIRFLAG,;t t
 s,@F90MODINCSPEC@,$F90MODINCSPEC,;t t
 s,@F90_MODULE_NAMES@,$F90_MODULE_NAMES,;t t
+s,@ZLIB_INC_DIR@,$ZLIB_INC_DIR,;t t
+s,@ZLIB_LIB_DIR@,$ZLIB_LIB_DIR,;t t
+s,@ZLIB@,$ZLIB,;t t
+s,@FFTW_INC_DIR@,$FFTW_INC_DIR,;t t
+s,@FFTW_LIB_DIR@,$FFTW_LIB_DIR,;t t
+s,@FFTW_LIBS@,$FFTW_LIBS,;t t
 s,@LIBOBJS@,$LIBOBJS,;t t
 s,@POW_LIB@,$POW_LIB,;t t
 s,@CXXCPP@,$CXXCPP,;t t
@@ -14621,6 +15452,4 @@ fi
   # would make configure fail if this is the last instruction.
   $ac_cs_success || { (exit 1); exit 1; }
 fi
-
-