diff --git a/Cantera/clib/src/Makefile.in b/Cantera/clib/src/Makefile.in
index ae8480ed2..76415c4da 100755
--- a/Cantera/clib/src/Makefile.in
+++ b/Cantera/clib/src/Makefile.in
@@ -100,7 +100,7 @@ win-install:
 
 
 %.d:
-	g++ -MM $(CXX_INCLUDES) $*.cpp > $*.d
+	@CXX_DEPENDS@ $(CXX_INCLUDES) $*.cpp > $*.d
 
 depends: $(DEPENDS)
 	cat *.d > .depends
diff --git a/Cantera/cxx/demos/Makefile.in b/Cantera/cxx/demos/Makefile.in
index 61b816e30..0552fd5b7 100644
--- a/Cantera/cxx/demos/Makefile.in
+++ b/Cantera/cxx/demos/Makefile.in
@@ -1,5 +1,3 @@
-#!/bin/sh
-
 ############################################################################
 #
 #  Makefile to compile and link a C++ application to 
@@ -65,7 +63,7 @@ LCXX_FLAGS = -L$(CANTERA_LIBDIR) @LOCAL_LIB_DIRS@ @CXXFLAGS@
 
 # how to create a dependency file
 .@CXX_EXT@.d:
-	g++ -MM -I$(CANTERA_INCDIR) $(CXX_FLAGS) $(LOCAL_DEFNS) $*.cpp > $*.d
+	@CXX_DEPENDS@ -I$(CANTERA_INCDIR) $(CXX_FLAGS) $(LOCAL_DEFNS) $*.cpp > $*.d
 
 PROGRAM = $(PROG_NAME)$(EXE_EXT)
 
diff --git a/Cantera/cxx/src/Makefile.in b/Cantera/cxx/src/Makefile.in
index 33f0cfd52..ea2f1a748 100644
--- a/Cantera/cxx/src/Makefile.in
+++ b/Cantera/cxx/src/Makefile.in
@@ -48,7 +48,7 @@ install:
 	@INSTALL@ $(CXXLIB) @prefix@/lib/cantera
 
 %.d:
-	g++ -MM $(CXX_INCLUDES) $*.cpp > $*.d
+	@CXX_DEPENDS@ $(CXX_INCLUDES) $*.cpp > $*.d
 
 depends: $(DEPENDS)
 	cat *.d > .depends
diff --git a/Cantera/fortran/src/Makefile.in b/Cantera/fortran/src/Makefile.in
index 29d9fce46..fe94f1795 100644
--- a/Cantera/fortran/src/Makefile.in
+++ b/Cantera/fortran/src/Makefile.in
@@ -93,7 +93,7 @@ win-install:
 	@INSTALL@ ../../../lib/fct.lib @ct_libdir@
 
 %.d: %.cpp
-	g++ -MM $(CXX_INCLUDES) $*.cpp > $*.d
+	@CXX_DEPENDS@ $(CXX_INCLUDES) $*.cpp > $*.d
 
 depends: $(DEPENDS)
 	cat *.d > .depends
diff --git a/Cantera/matlab/Makefile.in b/Cantera/matlab/Makefile.in
index a0c249599..b63d21c26 100644
--- a/Cantera/matlab/Makefile.in
+++ b/Cantera/matlab/Makefile.in
@@ -46,7 +46,7 @@ endif
 DEPENDS = $(SRCS:.cpp=.d)
 
 .cpp.d:
-	g++ -MM $(CXX_INCLUDES) $*.cpp > $*.d
+	@CXX_DEPENDS@ $(CXX_INCLUDES) $*.cpp > $*.d
 
 all: cantera/ctmethods.@mex_ext@
 
diff --git a/Cantera/src/Makefile.in b/Cantera/src/Makefile.in
index 678aa0501..cf906e6d7 100755
--- a/Cantera/src/Makefile.in
+++ b/Cantera/src/Makefile.in
@@ -180,7 +180,7 @@ ALL_H = $(BASE_H) $(THERMO_H) $(KINETICS_H) $(HETEROKIN_H) \
         $(EQUIL_H) $(SOLVERS_H) $(RPATH_H)
 
 .cpp.d:
-	g++ -MM $(CXX_INCLUDES) $*.cpp > $*.d
+	@CXX_DEPENDS@ $(CXX_INCLUDES) $*.cpp > $*.d
 
 .cpp.o:
 	@CXX@ -c $< $(CXX_INCLUDES) $(CXX_FLAGS) 
@@ -189,13 +189,13 @@ ODE_integrators.o:
 	@CXX@ -c ODE_integrators.cpp $(CXX_INCLUDES) $(SUNDIALS_INC) \
             $(CXX_FLAGS) 
 ODE_integrators.d: ODE_integrators.cpp Makefile
-	g++ -MM ODE_integrators.cpp $(CXX_INCLUDES) $(SUNDIALS_INC) \
+	@CXX_DEPENDS@ ODE_integrators.cpp $(CXX_INCLUDES) $(SUNDIALS_INC) \
             $(CXX_FLAGS) > ODE_integrators.d 
 
 DAE_solvers.o: DAE_solvers.cpp
 	@CXX@ -c DAE_solvers.cpp $(CXX_INCLUDES) $(SUNDIALS_INC) $(CXX_FLAGS)
 DAE_solvers.d: DAE_solvers.cpp Makefile
-	g++ -MM DAE_solvers.cpp $(CXX_INCLUDES) $(SUNDIALS_INC) \
+	@CXX_DEPENDS@ DAE_solvers.cpp $(CXX_INCLUDES) $(SUNDIALS_INC) \
             $(CXX_FLAGS) > DAE_solvers.d  
 
 lib:  $(OBJ_LIB)
diff --git a/Cantera/src/converters/Makefile.in b/Cantera/src/converters/Makefile.in
index a2aee3dad..585ec5c8e 100644
--- a/Cantera/src/converters/Makefile.in
+++ b/Cantera/src/converters/Makefile.in
@@ -38,7 +38,7 @@ all: $(CONV_LIB)
         done)
 
 %.d:
-	g++ -MM $(CXX_INCLUDES) $*.cpp > $*.d
+	@CXX_DEPENDS@ $(CXX_INCLUDES) $*.cpp > $*.d
 
 .cpp.o:
 	@CXX@ -c $< $(CXX_FLAGS) $(CXX_INCLUDES)
diff --git a/Cantera/src/oneD/Makefile.in b/Cantera/src/oneD/Makefile.in
index 05f110b57..11ad84d4f 100644
--- a/Cantera/src/oneD/Makefile.in
+++ b/Cantera/src/oneD/Makefile.in
@@ -29,7 +29,7 @@ ONED_LIB = @buildlib@/liboneD.a
 DEPENDS = $(OBJS:.o=.d)
 
 %.d:
-	g++ -MM $(CXX_INCLUDES) $*.cpp > $*.d
+	@CXX_DEPENDS@ $(CXX_INCLUDES) $*.cpp > $*.d
 
 .cpp.o:
 	@CXX@ -c $< @DEFS@ $(CXX_FLAGS) $(CXX_INCLUDES)
diff --git a/Cantera/src/thermo/Makefile.in b/Cantera/src/thermo/Makefile.in
index a2e79fe2c..14b4aacd0 100644
--- a/Cantera/src/thermo/Makefile.in
+++ b/Cantera/src/thermo/Makefile.in
@@ -28,14 +28,15 @@ ELECTRO_OBJ = SingleSpeciesTP.o StoichSubstanceSSTP.o \
               IdealSolidSolnPhase.o IdealMolalSoln.o \
               WaterPropsIAPWSphi.o WaterPropsIAPWS.o WaterProps.o \
               PDSS.o WaterPDSS.o WaterTP.o \
-	      HMWSoln.o HMWSoln_input.o DebyeHuckel.o
+	      HMWSoln.o HMWSoln_input.o DebyeHuckel.o \
+              IdealGasPDSS.o
 
 ELECTRO_H =  SingleSpeciesTP.h StoichSubstanceSSTP.h \
                MolalityVPSSTP.h  VPStandardStateTP.h \
                IdealSolidSolnPhase.h IdealMolalSoln.h \
                WaterPropsIAPWSphi.h WaterPropsIAPWS.h WaterProps.h \
                PDSS.h WaterPDSS.h WaterTP.h HMWSoln.h electrolytes.h \
-	       DebyeHuckel.h
+	       DebyeHuckel.h IdealGasPDSS.o
 endif
 ifeq ($(do_issp),1)
 ISSP_OBJ = IdealSolidSolnPhase.o
@@ -58,7 +59,7 @@ all: $(LIB) .depends
 	  $(INSTALL_TSC) "$${lh}" $(INCDIR) ; \
 	done)
 %.d:
-	g++ -MM $(CXX_INCLUDES) $*.cpp > $*.d
+	@CXX_DEPENDS@ $(CXX_INCLUDES) $*.cpp > $*.d
 
 .cpp.o:
 	@CXX@ -c $< $(CXX_FLAGS) $(CXX_INCLUDES)
diff --git a/Cantera/src/transport/Makefile.in b/Cantera/src/transport/Makefile.in
index 7f7602549..8ecfa5bf9 100644
--- a/Cantera/src/transport/Makefile.in
+++ b/Cantera/src/transport/Makefile.in
@@ -35,7 +35,7 @@ all: $(LIB)
 	  $(INSTALL_TSC) "$${lh}" $(INCDIR) ; \
 	done)
 %.d:
-	g++ -MM $(CXX_INCLUDES) $*.cpp > $*.d
+	@CXX_DEPENDS@ $(CXX_INCLUDES) $*.cpp > $*.d
 
 .cpp.o:
 	@CXX@ -c $< $(CXX_FLAGS) $(CXX_INCLUDES)
diff --git a/Cantera/src/zeroD/Makefile.in b/Cantera/src/zeroD/Makefile.in
index cb88d445c..4b3eac1ec 100644
--- a/Cantera/src/zeroD/Makefile.in
+++ b/Cantera/src/zeroD/Makefile.in
@@ -36,7 +36,7 @@ all: .depends $(ZEROD_LIB)
 	done)
 
 %.d:
-	g++ -MM $(CXX_INCLUDES) $*.cpp > $*.d
+	@CXX_DEPENDS@ $(CXX_INCLUDES) $*.cpp > $*.d
 
 .cpp.o:
 	@CXX@ -c $< @DEFS@ $(CXX_FLAGS) $(CXX_INCLUDES)
diff --git a/Cantera/user/Makefile.in b/Cantera/user/Makefile.in
index 3c15fd30a..1c7051ccc 100644
--- a/Cantera/user/Makefile.in
+++ b/Cantera/user/Makefile.in
@@ -33,7 +33,7 @@ LIB = @buildlib@/libuser.a
 DEPENDS = $(OBJS:.o=.d)
 
 %.d:
-	g++ -MM $(CXX_INCLUDES) $*.cpp > $*.d
+	@CXX_DEPENDS@ $(CXX_INCLUDES) $*.cpp > $*.d
 
 .cpp.o:
 	@CXX@ -c $< $(CXX_FLAGS) $(CXX_INCLUDES)