diff --git a/model/bin/ad3.tmpl b/model/bin/ad3.tmpl
index e3cb7f616d..713f5359f0 100755
--- a/model/bin/ad3.tmpl
+++ b/model/bin/ad3.tmpl
@@ -212,6 +212,9 @@
 
     CPPFLAGS+=("-D__WW3_SWITCHES__='$sw_str'")
 
+    # Also set endianness:
+    CPPFLAGS+=("-DENDIANNESS='<endian>'")
+
     <comp_seq> "${CPPFLAGS[@]}" <cppad3procflag> <cppad3flag2>  $path_i/$name.F90 <cppad3flag3> $name.F90
     <cppad3flag4> mv $name.i $name.F90
 
diff --git a/model/bin/cmplr.env b/model/bin/cmplr.env
index dee68b1cb6..75674b0945 100644
--- a/model/bin/cmplr.env
+++ b/model/bin/cmplr.env
@@ -36,6 +36,9 @@
 err_pattern='[[:space:]]error[[:space:]]'
 warn_pattern='warn'
 
+# Binary I/O defaults to native endian:
+endian='native'
+
 # disable listing done by the compiler
 list='no'
 
@@ -63,9 +66,11 @@ if [ "$cmplr" == "mpt" ] || [ "$cmplr" == "mpt_debug" ] || [ "$cmplr" == "mpt_pr
   # OPTIONS - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
 
   # common options
-  optc='-c -module $path_m -no-fma -ip -g -i4 -real-size 32 -fp-model precise -assume byterecl -convert big_endian -fno-alias -fno-fnalias'
+  optc='-c -module $path_m -no-fma -ip -g -i4 -real-size 32 -fp-model precise -assume byterecl -fno-alias -fno-fnalias'
   optl='-o $prog -g'
 
+  endian='big_endian'
+
   # list options
   if [ "$list" == 'yes' ] ; then optc="$optc -list"; fi
 
@@ -145,9 +150,11 @@ if [ "$cmplr" == "intel" ]          || [ "$cmplr" == "intel_debug" ]    || [ "$c
   # OPTIONS - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
 
   # common options
-  optc='-c -module $path_m -no-fma -ip -g -traceback -i4 -real-size 32 -fp-model precise -assume byterecl -convert big_endian -fno-alias -fno-fnalias -sox'
+  optc='-c -module $path_m -no-fma -ip -g -traceback -i4 -real-size 32 -fp-model precise -assume byterecl -fno-alias -fno-fnalias -sox'
   optl='-o $prog -g'
 
+  endian='big_endian'
+
   # list options
   if [ "$list" == 'yes' ] ; then optc="$optc -list"; fi
 
@@ -252,9 +259,11 @@ if [ "$cmplr" == "gnu" ] || [ "$cmplr" == "gnu_debug" ] || [ "$cmplr" == "gnu_pr
   # OPTIONS - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
 
   # common options
-  optc='-c -J$path_m -g -fno-second-underscore -ffree-line-length-none -fconvert=big-endian'
+  optc='-c -J$path_m -g -fno-second-underscore -ffree-line-length-none'
   optl='-o $prog -g'
 
+  endian='big_endian'
+
   # omp options
   optomp='-fopenmp'
 
diff --git a/model/bin/w3_setup b/model/bin/w3_setup
index 8334d3bbd3..790c9c23ad 100755
--- a/model/bin/w3_setup
+++ b/model/bin/w3_setup
@@ -394,7 +394,7 @@ then
        [ "$cmplr" == "ukmo_cray_gnu" ] || [ "$cmplr" == "ukmo_cray_gnu_debug" ]     || \
        [ "$cmplr" == "ukmo_cray_intel" ] || [ "$cmplr" == "ukmo_cray_intel_debug" ]; then
      source $path_b/cmplr.env
-     sed -e "s/<comp_seq>/$comp_seq/" -e "s/<cppad3procflag>/$cppad3procflag/" -e "s/<cppad3flag2>/$cppad3flag2/" -e "s/<cppad3flag3>/$cppad3flag3/" -e "s/<cppad3flag4>/$cppad3flag4/" $path_b/ad3.tmpl > $path_b/ad3
+     sed -e "s/<comp_seq>/$comp_seq/" -e "s/<cppad3procflag>/$cppad3procflag/" -e "s/<cppad3flag2>/$cppad3flag2/" -e "s/<cppad3flag3>/$cppad3flag3/" -e "s/<cppad3flag4>/$cppad3flag4/" -e "s/<endian>/${endian}/" $path_b/ad3.tmpl > $path_b/ad3
     echo "      sed $path_b/ad3.tmpl => $path_b/ad3"
   else
     errmsg "$path_b/ad3.$cmplr not found"
diff --git a/regtests/bin/run_test b/regtests/bin/run_test
index e9813bcc61..9b93bf9113 100755
--- a/regtests/bin/run_test
+++ b/regtests/bin/run_test
@@ -1259,7 +1259,14 @@ then
         else
            inputs="`ls $path_i/$prog*.inp 2>/dev/null`"
         fi
-        inputs_tmp=`( ls ${path_i}/${prog}${gu}* )`
+
+        if [ $nml_input ] && [ ! -z "`ls ${path_i}/${prog}*.nml 2>/dev/null`" ]
+          then
+          inputs_tmp=`( ls ${path_i}/${prog}${gu}*nml)`
+        else
+          inputs_tmp=`( ls ${path_i}/${prog}${gu}*inp)`
+        fi
+         
         if [ ! -z "$inputs_tmp" ];then
            inputs=$inputs_tmp
         fi