diff --git a/autoconf/configure.ac b/autoconf/configure.ac
index 55c4d7e37c5..94b306f847c 100644
--- a/autoconf/configure.ac
+++ b/autoconf/configure.ac
@@ -128,6 +128,10 @@ case $build in
              AC_SUBST(OS,[AIX])
              platform_type="AIX"
              ;;
+        *-*-interix*)
+             AC_SUBST(OS,[SunOS])
+             platform_type="SunOS"
+             ;;
         *-*-win32*)
              AC_SUBST(OS,[Win32])
              platform_type="Win32"
@@ -138,6 +142,11 @@ case $build in
 	     ;;
 esac
 
+dnl Make sure we aren't attempting to configure for an unknown system
+if test $platform_type -eq "Unknown" ; then
+  AC_MSG_ERROR([Platform is unknown, configure can't continue])
+fi
+
 dnl Make a link from lib/System/platform to lib/System/$platform_type
 dnl This helps the #inclusion of the system specific include files
 dnl for the operating system abstraction library
diff --git a/configure b/configure
index 5949627beea..b9c93934f95 100755
--- a/configure
+++ b/configure
@@ -1925,6 +1925,11 @@ case $build in
 
              platform_type="AIX"
              ;;
+        *-*-interix*)
+             OS=SunOS
+
+             platform_type="SunOS"
+             ;;
         *-*-win32*)
              OS=Win32
 
@@ -1937,6 +1942,12 @@ case $build in
 	     ;;
 esac
 
+if test $platform_type -eq "Unknown" ; then
+  { { echo "$as_me:$LINENO: error: Platform is unknown, configure can't continue" >&5
+echo "$as_me: error: Platform is unknown, configure can't continue" >&2;}
+   { (exit 1); exit 1; }; }
+fi
+
           ac_config_links="$ac_config_links lib/System/platform:lib/System/$platform_type"
 
 
@@ -4237,7 +4248,7 @@ ia64-*-hpux*)
   ;;
 *-*-irix6*)
   # Find out which ABI we are using.
-  echo '#line 4240 "configure"' > conftest.$ac_ext
+  echo '#line 4251 "configure"' > conftest.$ac_ext
   if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
@@ -5111,7 +5122,7 @@ fi
 
 
 # Provide some information about the compiler.
-echo "$as_me:5114:" \
+echo "$as_me:5125:" \
      "checking for Fortran 77 compiler version" >&5
 ac_compiler=`set X $ac_compile; echo $2`
 { (eval echo "$as_me:$LINENO: \"$ac_compiler --version </dev/null >&5\"") >&5
@@ -6142,11 +6153,11 @@ else
    -e 's:.*FLAGS}? :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:6145: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:6156: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>conftest.err)
    ac_status=$?
    cat conftest.err >&5
-   echo "$as_me:6149: \$? = $ac_status" >&5
+   echo "$as_me:6160: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s "$ac_outfile"; then
      # The compiler can only warn and ignore the option if not recognized
      # So say no if there are warnings
@@ -6374,11 +6385,11 @@ else
    -e 's:.*FLAGS}? :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:6377: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:6388: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>conftest.err)
    ac_status=$?
    cat conftest.err >&5
-   echo "$as_me:6381: \$? = $ac_status" >&5
+   echo "$as_me:6392: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s "$ac_outfile"; then
      # The compiler can only warn and ignore the option if not recognized
      # So say no if there are warnings
@@ -6441,11 +6452,11 @@ else
    -e 's:.*FLAGS}? :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:6444: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:6455: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>out/conftest.err)
    ac_status=$?
    cat out/conftest.err >&5
-   echo "$as_me:6448: \$? = $ac_status" >&5
+   echo "$as_me:6459: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s out/conftest2.$ac_objext
    then
      # The compiler can only warn and ignore the option if not recognized
@@ -8559,7 +8570,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<EOF
-#line 8562 "configure"
+#line 8573 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -8657,7 +8668,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<EOF
-#line 8660 "configure"
+#line 8671 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -10813,11 +10824,11 @@ else
    -e 's:.*FLAGS}? :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:10816: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:10827: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>conftest.err)
    ac_status=$?
    cat conftest.err >&5
-   echo "$as_me:10820: \$? = $ac_status" >&5
+   echo "$as_me:10831: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s "$ac_outfile"; then
      # The compiler can only warn and ignore the option if not recognized
      # So say no if there are warnings
@@ -10880,11 +10891,11 @@ else
    -e 's:.*FLAGS}? :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:10883: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:10894: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>out/conftest.err)
    ac_status=$?
    cat out/conftest.err >&5
-   echo "$as_me:10887: \$? = $ac_status" >&5
+   echo "$as_me:10898: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s out/conftest2.$ac_objext
    then
      # The compiler can only warn and ignore the option if not recognized
@@ -12209,7 +12220,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<EOF
-#line 12212 "configure"
+#line 12223 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -12307,7 +12318,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<EOF
-#line 12310 "configure"
+#line 12321 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -13129,11 +13140,11 @@ else
    -e 's:.*FLAGS}? :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:13132: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:13143: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>conftest.err)
    ac_status=$?
    cat conftest.err >&5
-   echo "$as_me:13136: \$? = $ac_status" >&5
+   echo "$as_me:13147: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s "$ac_outfile"; then
      # The compiler can only warn and ignore the option if not recognized
      # So say no if there are warnings
@@ -13196,11 +13207,11 @@ else
    -e 's:.*FLAGS}? :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:13199: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:13210: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>out/conftest.err)
    ac_status=$?
    cat out/conftest.err >&5
-   echo "$as_me:13203: \$? = $ac_status" >&5
+   echo "$as_me:13214: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s out/conftest2.$ac_objext
    then
      # The compiler can only warn and ignore the option if not recognized
@@ -15162,11 +15173,11 @@ else
    -e 's:.*FLAGS}? :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:15165: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:15176: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>conftest.err)
    ac_status=$?
    cat conftest.err >&5
-   echo "$as_me:15169: \$? = $ac_status" >&5
+   echo "$as_me:15180: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s "$ac_outfile"; then
      # The compiler can only warn and ignore the option if not recognized
      # So say no if there are warnings
@@ -15394,11 +15405,11 @@ else
    -e 's:.*FLAGS}? :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:15397: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:15408: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>conftest.err)
    ac_status=$?
    cat conftest.err >&5
-   echo "$as_me:15401: \$? = $ac_status" >&5
+   echo "$as_me:15412: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s "$ac_outfile"; then
      # The compiler can only warn and ignore the option if not recognized
      # So say no if there are warnings
@@ -15461,11 +15472,11 @@ else
    -e 's:.*FLAGS}? :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:15464: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:15475: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>out/conftest.err)
    ac_status=$?
    cat out/conftest.err >&5
-   echo "$as_me:15468: \$? = $ac_status" >&5
+   echo "$as_me:15479: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s out/conftest2.$ac_objext
    then
      # The compiler can only warn and ignore the option if not recognized
@@ -17579,7 +17590,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<EOF
-#line 17582 "configure"
+#line 17593 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -17677,7 +17688,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<EOF
-#line 17680 "configure"
+#line 17691 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H