diff --git a/test_problems/ChemEquil_ionizedGas/Makefile.in b/test_problems/ChemEquil_ionizedGas/Makefile.in
index 8ae6b465a..a9d0c59dc 100644
--- a/test_problems/ChemEquil_ionizedGas/Makefile.in
+++ b/test_problems/ChemEquil_ionizedGas/Makefile.in
@@ -34,8 +34,7 @@ os_is_win = @OS_IS_WIN@
 FORT_LIBS = @FLIBS@
 
 # Executables extension
-extension = @EXE_EXT@
-extension2 = @EXEEXT@
+EXE_EXT = @EXE_EXT@
 
 # the C++ compiler
 CXX = @CXX@
diff --git a/test_problems/VCSnonideal/NaCl_equil/runtest b/test_problems/VCSnonideal/NaCl_equil/runtest
index 048d3d4f2..6397b25f6 100755
--- a/test_problems/VCSnonideal/NaCl_equil/runtest
+++ b/test_problems/VCSnonideal/NaCl_equil/runtest
@@ -19,7 +19,7 @@ BINDIR=../../../bin
 #################################################################
 MPEQUIL_EXE=${MPEQUIL_EXE:=nacl_equil}
 
-$MPEQUIL_EXE -d 3 > out.txt 2>err_out.txt
+./$MPEQUIL_EXE -d 3 > out.txt 2>err_out.txt
 retnStat=$?
 if test $retnStat != "0" 
 then
diff --git a/test_problems/VCSnonideal/NaCl_equil/runtestd b/test_problems/VCSnonideal/NaCl_equil/runtestd
index fb8268201..7ef61644b 100755
--- a/test_problems/VCSnonideal/NaCl_equil/runtestd
+++ b/test_problems/VCSnonideal/NaCl_equil/runtestd
@@ -19,7 +19,7 @@ BINDIR=../../../bin
 #################################################################
 MPEQUIL_EXE=${MPEQUIL_EXE:=nacl_equil}
 
-$MPEQUIL_EXE -d 5 > dout.txt 2>err_dout.txt
+./$MPEQUIL_EXE -d 5 > dout.txt 2>err_dout.txt
 retnStat=$?
 if test $retnStat != "0" 
 then
diff --git a/test_problems/cathermo/DH_graph_1/runtest b/test_problems/cathermo/DH_graph_1/runtest
index 32cd6637e..eab6203ec 100755
--- a/test_problems/cathermo/DH_graph_1/runtest
+++ b/test_problems/cathermo/DH_graph_1/runtest
@@ -26,7 +26,7 @@ fi
 /bin/rm -f test.out test.diff   DH_graph_1.csv
 
 # echo 'Testing the  DH dilute act calculation - act vs I'
-$prog  DH_NaCl_dilute.xml  > DH_graph_1.csv
+./$prog  DH_NaCl_dilute.xml  > DH_graph_1.csv
 retnStat=$?
 diff DH_graph_1.csv DH_NaCl_dilute_blessed.csv > diff.out
 zres=$?
diff --git a/test_problems/cathermo/DH_graph_NM/runtest b/test_problems/cathermo/DH_graph_NM/runtest
index 0ae880f0f..104cdfdd8 100755
--- a/test_problems/cathermo/DH_graph_NM/runtest
+++ b/test_problems/cathermo/DH_graph_NM/runtest
@@ -26,7 +26,7 @@ fi
 ##########################################################################
 /bin/rm -f test.out test.diff DH_NaCl_NM.csv
 
-$prog  DH_NaCl_NM.xml > DH_NaCl_NM.csv
+./$prog  DH_NaCl_NM.xml > DH_NaCl_NM.csv
 retnStat=$?
 diff DH_NaCl_NM.csv DH_NaCl_NM_blessed.csv > output.txt
 zres=$?
diff --git a/test_problems/cathermo/DH_graph_Pitzer/runtest b/test_problems/cathermo/DH_graph_Pitzer/runtest
index 77f39f2ab..977c5b988 100755
--- a/test_problems/cathermo/DH_graph_Pitzer/runtest
+++ b/test_problems/cathermo/DH_graph_Pitzer/runtest
@@ -26,7 +26,7 @@ fi
 ##########################################################################
 /bin/rm -f test.out test.diff DH_NaCl_Pitzer.csv
 
-$prog  DH_NaCl_Pitzer.xml > DH_NaCl_Pitzer.csv
+./$prog  DH_NaCl_Pitzer.xml > DH_NaCl_Pitzer.csv
 retnStat=$?
 diff DH_NaCl_Pitzer.csv DH_NaCl_Pitzer_blessed.csv > output.txt
 zres=$?
diff --git a/test_problems/cathermo/DH_graph_acommon/runtest b/test_problems/cathermo/DH_graph_acommon/runtest
index 16198696c..08a052cb8 100755
--- a/test_problems/cathermo/DH_graph_acommon/runtest
+++ b/test_problems/cathermo/DH_graph_acommon/runtest
@@ -26,7 +26,7 @@ fi
 ##########################################################################
 /bin/rm -f test.out test.diff DH_NaCl_acommon.csv
 
-$prog  DH_NaCl_acommon.xml > DH_NaCl_acommon.csv
+./$prog  DH_NaCl_acommon.xml > DH_NaCl_acommon.csv
 retnStat=$?
 diff DH_NaCl_acommon.csv DH_NaCl_acommon_blessed.csv > output.txt
 zres=$?
diff --git a/test_problems/cathermo/DH_graph_bdotak/runtest b/test_problems/cathermo/DH_graph_bdotak/runtest
index 27e763931..156aeb5d4 100755
--- a/test_problems/cathermo/DH_graph_bdotak/runtest
+++ b/test_problems/cathermo/DH_graph_bdotak/runtest
@@ -26,7 +26,7 @@ fi
 ##########################################################################
 /bin/rm -f test.out test.diff DH_NaCl_bdotak.csv
 
-$prog  DH_NaCl_bdotak.xml > DH_NaCl_bdotak.csv
+./$prog  DH_NaCl_bdotak.xml > DH_NaCl_bdotak.csv
 retnStat=$?
 diff DH_NaCl_bdotak.csv DH_NaCl_bdotak_blessed.csv > output.txt
 zres=$?
diff --git a/test_problems/cathermo/HMW_dupl_test/runtest b/test_problems/cathermo/HMW_dupl_test/runtest
index d70ba78ed..a85fe7f7b 100755
--- a/test_problems/cathermo/HMW_dupl_test/runtest
+++ b/test_problems/cathermo/HMW_dupl_test/runtest
@@ -20,7 +20,7 @@ CANTERA_BIN=${CANTERA_BIN:=../../../bin}
 
 #################################################################
 
-$prog HMW_NaCl_sp1977_alt.xml > output.txt
+./$prog HMW_NaCl_sp1977_alt.xml > output.txt
 retnStat=$?
 if [ $retnStat != "0" ]
 then
diff --git a/test_problems/cathermo/HMW_graph_CpvT/runtest b/test_problems/cathermo/HMW_graph_CpvT/runtest
index cee966321..4765bb7c5 100755
--- a/test_problems/cathermo/HMW_graph_CpvT/runtest
+++ b/test_problems/cathermo/HMW_graph_CpvT/runtest
@@ -20,7 +20,7 @@ CANTERA_BIN=${CANTERA_BIN:=../../../bin}
 
 #################################################################
 
-$prog HMW_NaCl_sp1977_alt.xml > output.txt
+./$prog HMW_NaCl_sp1977_alt.xml > output.txt
 retnStat=$?
 if [ $retnStat != "0" ]
 then
diff --git a/test_problems/cathermo/HMW_graph_GvI/runtest b/test_problems/cathermo/HMW_graph_GvI/runtest
index a6f670c4d..5e2d16da2 100755
--- a/test_problems/cathermo/HMW_graph_GvI/runtest
+++ b/test_problems/cathermo/HMW_graph_GvI/runtest
@@ -21,7 +21,7 @@ CANTERA_BIN=${CANTERA_BIN:=../../../bin}
 
 #################################################################
 
-$prog  > output.txt
+./$prog  > output.txt
 retnStat=$?
 if [ $retnStat != "0" ]
 then
diff --git a/test_problems/cathermo/HMW_graph_GvT/runtest b/test_problems/cathermo/HMW_graph_GvT/runtest
index e08a57210..8a133245b 100755
--- a/test_problems/cathermo/HMW_graph_GvT/runtest
+++ b/test_problems/cathermo/HMW_graph_GvT/runtest
@@ -20,7 +20,7 @@ CANTERA_BIN=${CANTERA_BIN:=../../../bin}
 
 #################################################################
 
-$prog HMW_NaCl_sp1977_alt.xml > output.txt
+./$prog HMW_NaCl_sp1977_alt.xml > output.txt
 retnStat=$?
 if [ $retnStat != "0" ]
 then
diff --git a/test_problems/cathermo/HMW_graph_VvT/runtest b/test_problems/cathermo/HMW_graph_VvT/runtest
index 7d2c4b3a2..cdfc8f4d4 100755
--- a/test_problems/cathermo/HMW_graph_VvT/runtest
+++ b/test_problems/cathermo/HMW_graph_VvT/runtest
@@ -20,7 +20,7 @@ CANTERA_BIN=${CANTERA_BIN:=../../../bin}
 
 #################################################################
 
-$prog HMW_NaCl_sp1977_alt.xml > output.txt
+./$prog HMW_NaCl_sp1977_alt.xml > output.txt
 retnStat=$?
 if [ $retnStat != "0" ]
 then
diff --git a/test_problems/cathermo/HMW_test_1/runtest b/test_problems/cathermo/HMW_test_1/runtest
index 3abd83ecf..3e963c89e 100755
--- a/test_problems/cathermo/HMW_test_1/runtest
+++ b/test_problems/cathermo/HMW_test_1/runtest
@@ -21,7 +21,7 @@ CANTERA_BIN=${CANTERA_BIN:=../../../bin}
 
 #################################################################
 
-$prog  > output.txt
+./$prog  > output.txt
 retnStat=$?
 if [ $retnStat != "0" ]
 then
diff --git a/test_problems/cathermo/HMW_test_3/runtest b/test_problems/cathermo/HMW_test_3/runtest
index 5994c88d6..f6f9fad52 100755
--- a/test_problems/cathermo/HMW_test_3/runtest
+++ b/test_problems/cathermo/HMW_test_3/runtest
@@ -21,7 +21,7 @@ CANTERA_BIN=${CANTERA_BIN:=../../../bin}
 
 #################################################################
 
-$prog  > output.txt
+./$prog  > output.txt
 retnStat=$?
 if [ $retnStat != "0" ]
 then
diff --git a/test_problems/cathermo/stoichSubSSTP/runtest b/test_problems/cathermo/stoichSubSSTP/runtest
index 49933c3a1..68358d859 100755
--- a/test_problems/cathermo/stoichSubSSTP/runtest
+++ b/test_problems/cathermo/stoichSubSSTP/runtest
@@ -20,7 +20,7 @@ CANTERA_BIN=${CANTERA_BIN:=../../../bin}
 
 #################################################################
 
-$prog > output.txt
+./$prog > output.txt
 retnStat=$?
 if [ $retnStat != "0" ]
 then