diff --git a/Cantera/python/Cantera/OneD/onedim.py b/Cantera/python/Cantera/OneD/onedim.py
index 24ffb8b97..dfee04a7d 100644
--- a/Cantera/python/Cantera/OneD/onedim.py
+++ b/Cantera/python/Cantera/OneD/onedim.py
@@ -144,7 +144,7 @@ class Domain1D:
                 d[b] = tol[b]
         for b in d.keys():
             n = self.componentIndex(b)
-            print 'setting tol for ',b,' itime = ',itime
+            # print 'setting tol for ',b,' itime = ',itime
             _cantera.domain_setTolerances(self._hndl, n, d[b][0], d[b][1], itime)
 
     
diff --git a/Makefile.in b/Makefile.in
index 4877ffd62..eeba02cbd 100755
--- a/Makefile.in
+++ b/Makefile.in
@@ -155,16 +155,18 @@ ifneq ($(build_python),0)
 	cd Cantera/python; @MAKE@ install
 ifeq ($(build_python),2)
 	@(for exdir in $(PY_EXAMPLES) ; do \
-             @INSTALL@ -d @ct_demodir@/python/$${exdir} ; \
+	     @INSTALL@ -d @ct_demodir@/python/$${exdir} ; \
 	     (for ihhh in Cantera/python/examples/$${exdir}/*.py ; do  \
-                  @INSTALL@ $${ihhh} @ct_demodir@/python/$${exdir} ; \
+	          @INSTALL@ $${ihhh} @ct_demodir@/python/$${exdir} ; \
                   echo "@INSTALL@ $${ihhh} @ct_demodir@/python/$${exdir}" ; \
-              done ) \
+              done ) ; \
+	      @INSTALL@ Cantera/python/examples/$${exdir}/Makefile @ct_demodir@/python/$${exdir} ; \
           done)
 	@(for ihhh in Cantera/python/examples/flames/*.dat ; do  \
              @INSTALL@ $${ihhh} @ct_demodir@/python/flames ; \
              echo "@INSTALL@ $${ihhh} @ct_demodir@/python/flames" ; \
           done )
+	@INSTALL@ Cantera/python/examples/Makefile @ct_demodir@/python 
 	@INSTALL@ -d @ct_tutdir@/python
 	@(for ihhh in Cantera/python/tutorial/*.py ; do  \
             @INSTALL@ $${ihhh} @ct_tutdir@/python ; \
diff --git a/ext/f2c_libs/arith.h b/ext/f2c_libs/arith.h
index 508eb414f..9841db38a 100644
--- a/ext/f2c_libs/arith.h
+++ b/ext/f2c_libs/arith.h
@@ -1,4 +1,3 @@
-#define IEEE_MC68k
-#define Arith_Kind_ASL 2
-#define Double_Align
+#define IEEE_8087
+#define Arith_Kind_ASL 1
 #define NANCHECK
diff --git a/preconfig b/preconfig
index 8765de604..0dba81804 100755
--- a/preconfig
+++ b/preconfig
@@ -254,14 +254,14 @@ USE_SUNDIALS=${USE_SUNDIALS:='default'}
 # This is where you installed sundials if you used the --prefix option
 # when you configured sundials. If you didn't use the prefix option,
 # then comment this line out.
-SUNDIALS_HOME=${SUNDIALS_HOME:=$HOME/sundials}
+SUNDIALS_HOME=${SUNDIALS_HOME:=$HOME/sundials23}
 
 # It is recommended that you install the newest release of sundials 
 # (currently 2.3.0) before building Cantera. But if you want to use an 
 # older version, set SUNDIALS_VERSION to the version you have.
 # Acceptable values are '2.2' and '2.3' only; anything else will cause
 # Cantera to not use sundials.
-SUNDIALS_VERSION=${SUNDIALS_VERSION:='2.2'}
+SUNDIALS_VERSION=${SUNDIALS_VERSION:='2.3'}
 
 #----------------------------------------------------------------- 
 #         BLAS and LAPACK