updated for version 7.0006

1 files changed, 746 insertions, 489 deletions

diff --git a/src/auto/configure b/src/auto/configure
index 62171f2c73..402689ea9b 100755
--- a/src/auto/configure
+++ b/src/auto/configure
@@ -32,6 +32,10 @@ ac_help="$ac_help
 ac_help="$ac_help
   --disable-xsmp-interact Disable XSMP interaction"
 ac_help="$ac_help
+  --enable-mzschemeinterp   Include MzScheme interpreter."
+ac_help="$ac_help
+  --with-plthome=PLTHOME   Use PLTHOME."
+ac_help="$ac_help
   --enable-perlinterp     Include Perl interpreter."
 ac_help="$ac_help
   --enable-pythoninterp   Include Python interpreter."
@@ -636,7 +640,7 @@ cat >> confdefs.h <<\EOF
 EOF
 
 echo $ac_n "checking whether ${MAKE-make} sets \${MAKE}""... $ac_c" 1>&6
-echo "configure:640: checking whether ${MAKE-make} sets \${MAKE}" >&5
+echo "configure:644: checking whether ${MAKE-make} sets \${MAKE}" >&5
 set dummy ${MAKE-make}; ac_make=`echo "$2" | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_prog_make_${ac_make}_set'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -666,7 +670,7 @@ fi
 # Extract the first word of "gcc", so it can be a program name with args.
 set dummy gcc; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:670: checking for $ac_word" >&5
+echo "configure:674: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_CC'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -696,7 +700,7 @@ if test -z "$CC"; then
   # Extract the first word of "cc", so it can be a program name with args.
 set dummy cc; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:700: checking for $ac_word" >&5
+echo "configure:704: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_CC'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -747,7 +751,7 @@ fi
       # Extract the first word of "cl", so it can be a program name with args.
 set dummy cl; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:751: checking for $ac_word" >&5
+echo "configure:755: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_CC'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -779,7 +783,7 @@ fi
 fi
 
 echo $ac_n "checking whether the C compiler ($CC $CFLAGS $LDFLAGS) works""... $ac_c" 1>&6
-echo "configure:783: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) works" >&5
+echo "configure:787: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) works" >&5
 
 ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
@@ -790,12 +794,12 @@ cross_compiling=$ac_cv_prog_cc_cross
 
 cat > conftest.$ac_ext << EOF
 
-#line 794 "configure"
+#line 798 "configure"
 #include "confdefs.h"
 
 main(){return(0);}
 EOF
-if { (eval echo configure:799: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:803: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   ac_cv_prog_cc_works=yes
   # If we can't run a trivial program, we are probably using a cross compiler.
   if (./conftest; exit) 2>/dev/null; then
@@ -821,12 +825,12 @@ if test $ac_cv_prog_cc_works = no; then
   { echo "configure: error: installation or configuration problem: C compiler cannot create executables." 1>&2; exit 1; }
 fi
 echo $ac_n "checking whether the C compiler ($CC $CFLAGS $LDFLAGS) is a cross-compiler""... $ac_c" 1>&6
-echo "configure:825: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) is a cross-compiler" >&5
+echo "configure:829: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) is a cross-compiler" >&5
 echo "$ac_t""$ac_cv_prog_cc_cross" 1>&6
 cross_compiling=$ac_cv_prog_cc_cross
 
 echo $ac_n "checking whether we are using GNU C""... $ac_c" 1>&6
-echo "configure:830: checking whether we are using GNU C" >&5
+echo "configure:834: checking whether we are using GNU C" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_gcc'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -835,7 +839,7 @@ else
   yes;
 #endif
 EOF
-if { ac_try='${CC-cc} -E conftest.c'; { (eval echo configure:839: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then
+if { ac_try='${CC-cc} -E conftest.c'; { (eval echo configure:843: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then
   ac_cv_prog_gcc=yes
 else
   ac_cv_prog_gcc=no
@@ -854,7 +858,7 @@ ac_test_CFLAGS="${CFLAGS+set}"
 ac_save_CFLAGS="$CFLAGS"
 CFLAGS=
 echo $ac_n "checking whether ${CC-cc} accepts -g""... $ac_c" 1>&6
-echo "configure:858: checking whether ${CC-cc} accepts -g" >&5
+echo "configure:862: checking whether ${CC-cc} accepts -g" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_cc_g'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -885,7 +889,7 @@ else
   fi
 fi
 	echo $ac_n "checking how to run the C preprocessor""... $ac_c" 1>&6
-echo "configure:889: checking how to run the C preprocessor" >&5
+echo "configure:893: checking how to run the C preprocessor" >&5
 # On Suns, sometimes $CPP names a directory.
 if test -n "$CPP" && test -d "$CPP"; then
   CPP=
@@ -900,13 +904,13 @@ else
   # On the NeXT, cc -E runs the code through the compiler's parser,
   # not just through cpp.
   cat > conftest.$ac_ext <<EOF
-#line 904 "configure"
+#line 908 "configure"
 #include "confdefs.h"
 #include <assert.h>
 Syntax Error
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:910: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:914: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   :
@@ -917,13 +921,13 @@ else
   rm -rf conftest*
   CPP="${CC-cc} -E -traditional-cpp"
   cat > conftest.$ac_ext <<EOF
-#line 921 "configure"
+#line 925 "configure"
 #include "confdefs.h"
 #include <assert.h>
 Syntax Error
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:927: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:931: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   :
@@ -934,13 +938,13 @@ else
   rm -rf conftest*
   CPP="${CC-cc} -nologo -E"
   cat > conftest.$ac_ext <<EOF
-#line 938 "configure"
+#line 942 "configure"
 #include "confdefs.h"
 #include <assert.h>
 Syntax Error
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:944: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:948: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   :
@@ -964,7 +968,7 @@ else
 fi
 echo "$ac_t""$CPP" 1>&6
 	cat > conftest.$ac_ext <<EOF
-#line 968 "configure"
+#line 972 "configure"
 #include "confdefs.h"
 
 EOF
@@ -974,7 +978,7 @@ if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
 fi
 rm -f conftest*
  echo $ac_n "checking for POSIXized ISC""... $ac_c" 1>&6
-echo "configure:978: checking for POSIXized ISC" >&5
+echo "configure:982: checking for POSIXized ISC" >&5
 if test -d /etc/conf/kconfig.d &&
   grep _POSIX_VERSION /usr/include/sys/unistd.h >/dev/null 2>&1
 then
@@ -998,7 +1002,7 @@ do
 # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1002: checking for $ac_word" >&5
+echo "configure:1006: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_AWK'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1030,7 +1034,7 @@ done
 # Extract the first word of "strip", so it can be a program name with args.
 set dummy strip; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1034: checking for $ac_word" >&5
+echo "configure:1038: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_STRIP'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1059,12 +1063,12 @@ fi
 
 
 echo $ac_n "checking for Cygwin environment""... $ac_c" 1>&6
-echo "configure:1063: checking for Cygwin environment" >&5
+echo "configure:1067: checking for Cygwin environment" >&5
 if eval "test \"`echo '$''{'ac_cv_cygwin'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 1068 "configure"
+#line 1072 "configure"
 #include "confdefs.h"
 
 int main() {
@@ -1075,7 +1079,7 @@ int main() {
 return __CYGWIN__;
 ; return 0; }
 EOF
-if { (eval echo configure:1079: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:1083: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_cygwin=yes
 else
@@ -1092,19 +1096,19 @@ echo "$ac_t""$ac_cv_cygwin" 1>&6
 CYGWIN=
 test "$ac_cv_cygwin" = yes && CYGWIN=yes
 echo $ac_n "checking for mingw32 environment""... $ac_c" 1>&6
-echo "configure:1096: checking for mingw32 environment" >&5
+echo "configure:1100: checking for mingw32 environment" >&5
 if eval "test \"`echo '$''{'ac_cv_mingw32'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 1101 "configure"
+#line 1105 "configure"
 #include "confdefs.h"
 
 int main() {
 return __MINGW32__;
 ; return 0; }
 EOF
-if { (eval echo configure:1108: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:1112: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_mingw32=yes
 else
@@ -1123,7 +1127,7 @@ test "$ac_cv_mingw32" = yes && MINGW32=yes
 
 
 echo $ac_n "checking for executable suffix""... $ac_c" 1>&6
-echo "configure:1127: checking for executable suffix" >&5
+echo "configure:1131: checking for executable suffix" >&5
 if eval "test \"`echo '$''{'ac_cv_exeext'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1133,7 +1137,7 @@ else
   rm -f conftest*
   echo 'int main () { return 0; }' > conftest.$ac_ext
   ac_cv_exeext=
-  if { (eval echo configure:1137: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }; then
+  if { (eval echo configure:1141: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }; then
     for file in conftest.*; do
       case $file in
       *.c | *.o | *.obj) ;;
@@ -1180,14 +1184,14 @@ test "$GCC" = yes && CPP_MM=M;
 
 if test -f ./toolcheck; then
   echo "checking for buggy tools" 1>&6
-echo "configure:1184: checking for buggy tools" >&5
+echo "configure:1188: checking for buggy tools" >&5
   sh ./toolcheck 1>&6
 fi
 
 OS_EXTRA_SRC=""; OS_EXTRA_OBJ=""
 
 echo $ac_n "checking for BeOS""... $ac_c" 1>&6
-echo "configure:1191: checking for BeOS" >&5
+echo "configure:1195: checking for BeOS" >&5
 case `uname` in
     BeOS)	OS_EXTRA_SRC=os_beos.c; OS_EXTRA_OBJ=objects/os_beos.o
 		BEOS=yes; echo "$ac_t""yes" 1>&6;;
@@ -1195,7 +1199,7 @@ case `uname` in
 esac
 
 echo $ac_n "checking for QNX""... $ac_c" 1>&6
-echo "configure:1199: checking for QNX" >&5
+echo "configure:1203: checking for QNX" >&5
 case `uname` in
     QNX)	OS_EXTRA_SRC=os_qnx.c; OS_EXTRA_OBJ=objects/os_qnx.o
 		test -z "$with_x" && with_x=no
@@ -1205,12 +1209,12 @@ esac
 
 DEFAULT_VIMNAME=vim
 echo $ac_n "checking for Darwin (Mac OS X)""... $ac_c" 1>&6
-echo "configure:1209: checking for Darwin (Mac OS X)" >&5
+echo "configure:1213: checking for Darwin (Mac OS X)" >&5
 if test "`(uname) 2>/dev/null`" = Darwin; then
   echo "$ac_t""yes" 1>&6
 
   echo $ac_n "checking --disable-darwin argument""... $ac_c" 1>&6
-echo "configure:1214: checking --disable-darwin argument" >&5
+echo "configure:1218: checking --disable-darwin argument" >&5
   # Check whether --enable-darwin or --disable-darwin was given.
 if test "${enable_darwin+set}" = set; then
   enableval="$enable_darwin"
@@ -1222,7 +1226,7 @@ fi
   if test "$enable_darwin" = "yes"; then
     echo "$ac_t""no" 1>&6
     echo $ac_n "checking if Darwin files are there""... $ac_c" 1>&6
-echo "configure:1226: checking if Darwin files are there" >&5
+echo "configure:1230: checking if Darwin files are there" >&5
     if test -f os_macosx.c; then
       echo "$ac_t""yes" 1>&6
     else
@@ -1241,17 +1245,17 @@ echo "configure:1226: checking if Darwin files are there" >&5
 
             ac_safe=`echo "Carbon/Carbon.h" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for Carbon/Carbon.h""... $ac_c" 1>&6
-echo "configure:1245: checking for Carbon/Carbon.h" >&5
+echo "configure:1249: checking for Carbon/Carbon.h" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 1250 "configure"
+#line 1254 "configure"
 #include "confdefs.h"
 #include <Carbon/Carbon.h>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:1255: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:1259: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -1308,7 +1312,7 @@ if test -z "$have_local_include" -a -d /usr/local/include; then
 fi
 
 echo $ac_n "checking --with-vim-name argument""... $ac_c" 1>&6
-echo "configure:1312: checking --with-vim-name argument" >&5
+echo "configure:1316: checking --with-vim-name argument" >&5
 # Check whether --with-vim-name or --without-vim-name was given.
 if test "${with_vim_name+set}" = set; then
   withval="$with_vim_name"
@@ -1319,7 +1323,7 @@ fi
 
 
 echo $ac_n "checking --with-ex-name argument""... $ac_c" 1>&6
-echo "configure:1323: checking --with-ex-name argument" >&5
+echo "configure:1327: checking --with-ex-name argument" >&5
 # Check whether --with-ex-name or --without-ex-name was given.
 if test "${with_ex_name+set}" = set; then
   withval="$with_ex_name"
@@ -1330,7 +1334,7 @@ fi
 
 
 echo $ac_n "checking --with-view-name argument""... $ac_c" 1>&6
-echo "configure:1334: checking --with-view-name argument" >&5
+echo "configure:1338: checking --with-view-name argument" >&5
 # Check whether --with-view-name or --without-view-name was given.
 if test "${with_view_name+set}" = set; then
   withval="$with_view_name"
@@ -1342,7 +1346,7 @@ fi
 
 
 echo $ac_n "checking --with-global-runtime argument""... $ac_c" 1>&6
-echo "configure:1346: checking --with-global-runtime argument" >&5
+echo "configure:1350: checking --with-global-runtime argument" >&5
 # Check whether --with-global-runtime or --without-global-runtime was given.
 if test "${with_global_runtime+set}" = set; then
   withval="$with_global_runtime"
@@ -1356,7 +1360,7 @@ fi
 
 
 echo $ac_n "checking --with-modified-by argument""... $ac_c" 1>&6
-echo "configure:1360: checking --with-modified-by argument" >&5
+echo "configure:1364: checking --with-modified-by argument" >&5
 # Check whether --with-modified-by or --without-modified-by was given.
 if test "${with_modified_by+set}" = set; then
   withval="$with_modified_by"
@@ -1370,9 +1374,9 @@ fi
 
 
 echo $ac_n "checking if character set is EBCDIC""... $ac_c" 1>&6
-echo "configure:1374: checking if character set is EBCDIC" >&5
+echo "configure:1378: checking if character set is EBCDIC" >&5
 cat > conftest.$ac_ext <<EOF
-#line 1376 "configure"
+#line 1380 "configure"
 #include "confdefs.h"
  
 int main() {
@@ -1385,7 +1389,7 @@ make an error "Character set is not EBCDIC"
 #endif 
 ; return 0; }
 EOF
-if { (eval echo configure:1389: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:1393: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
    # TryCompile action if true
 cf_cv_ebcdic=yes 
@@ -1413,7 +1417,7 @@ esac
 
 if test "$cf_cv_ebcdic" = "yes"; then
 echo $ac_n "checking for OS/390 Unix""... $ac_c" 1>&6
-echo "configure:1417: checking for OS/390 Unix" >&5
+echo "configure:1421: checking for OS/390 Unix" >&5
 case `uname` in
     OS/390)	OS390Unix="yes";
 										if test "$CC" = "cc"; then
@@ -1450,7 +1454,7 @@ fi
 
 
 echo $ac_n "checking --with-features argument""... $ac_c" 1>&6
-echo "configure:1454: checking --with-features argument" >&5
+echo "configure:1458: checking --with-features argument" >&5
 # Check whether --with-features or --without-features was given.
 if test "${with_features+set}" = set; then
   withval="$with_features"
@@ -1493,7 +1497,7 @@ esac
 
 
 echo $ac_n "checking --with-compiledby argument""... $ac_c" 1>&6
-echo "configure:1497: checking --with-compiledby argument" >&5
+echo "configure:1501: checking --with-compiledby argument" >&5
 # Check whether --with-compiledby or --without-compiledby was given.
 if test "${with_compiledby+set}" = set; then
   withval="$with_compiledby"
@@ -1505,7 +1509,7 @@ fi
 
 
 echo $ac_n "checking --disable-xsmp argument""... $ac_c" 1>&6
-echo "configure:1509: checking --disable-xsmp argument" >&5
+echo "configure:1513: checking --disable-xsmp argument" >&5
 # Check whether --enable-xsmp or --disable-xsmp was given.
 if test "${enable_xsmp+set}" = set; then
   enableval="$enable_xsmp"
@@ -1518,7 +1522,7 @@ fi
 if test "$enable_xsmp" = "yes"; then
   echo "$ac_t""no" 1>&6
   echo $ac_n "checking --disable-xsmp-interact argument""... $ac_c" 1>&6
-echo "configure:1522: checking --disable-xsmp-interact argument" >&5
+echo "configure:1526: checking --disable-xsmp-interact argument" >&5
   # Check whether --enable-xsmp-interact or --disable-xsmp-interact was given.
 if test "${enable_xsmp_interact+set}" = set; then
   enableval="$enable_xsmp_interact"
@@ -1540,8 +1544,142 @@ else
   echo "$ac_t""yes" 1>&6
 fi
 
+echo $ac_n "checking --enable-mzschemeinterp argument""... $ac_c" 1>&6
+echo "configure:1549: checking --enable-mzschemeinterp argument" >&5
+# Check whether --enable-mzschemeinterp or --disable-mzschemeinterp was given.
+if test "${enable_mzschemeinterp+set}" = set; then
+  enableval="$enable_mzschemeinterp"
+  :
+else
+  enable_mzschemeinterp="no"
+fi
+
+echo "$ac_t""$enable_mzschemeinterp" 1>&6
+
+if test "$enable_mzschemeinterp" = "yes"; then
+    
+
+  echo $ac_n "checking --with-plthome argument""... $ac_c" 1>&6
+echo "configure:1564: checking --with-plthome argument" >&5
+  # Check whether --with-plthome or --without-plthome was given.
+if test "${with_plthome+set}" = set; then
+  withval="$with_plthome"
+  with_plthome="$withval"; echo "$ac_t""$with_plthome" 1>&6
+else
+  with_plthome="";echo "$ac_t"""no"" 1>&6
+fi
+
+
+  if test "X$with_plthome" != "X"; then
+       vi_cv_path_mzscheme_pfx="$with_plthome"
+  else
+    echo $ac_n "checking PLTHOME environment var""... $ac_c" 1>&6
+echo "configure:1578: checking PLTHOME environment var" >&5
+    if test "X$PLTHOME" != "X"; then
+	echo "$ac_t"""$PLTHOME"" 1>&6
+        vi_cv_path_mzscheme_pfx="$PLTHOME"
+    else
+	echo "$ac_t"""not set"" 1>&6
+	        # Extract the first word of "mzscheme", so it can be a program name with args.
+set dummy mzscheme; ac_word=$2
+echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
+echo "configure:1587: checking for $ac_word" >&5
+if eval "test \"`echo '$''{'ac_cv_path_vi_cv_path_mzscheme'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  case "$vi_cv_path_mzscheme" in
+  /*)
+  ac_cv_path_vi_cv_path_mzscheme="$vi_cv_path_mzscheme" # Let the user override the test with a path.
+  ;;
+  ?:/*)			 
+  ac_cv_path_vi_cv_path_mzscheme="$vi_cv_path_mzscheme" # Let the user override the test with a dos path.
+  ;;
+  *)
+  IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS=":"
+  ac_dummy="$PATH"
+  for ac_dir in $ac_dummy; do 
+    test -z "$ac_dir" && ac_dir=.
+    if test -f $ac_dir/$ac_word; then
+      ac_cv_path_vi_cv_path_mzscheme="$ac_dir/$ac_word"
+      break
+    fi
+  done
+  IFS="$ac_save_ifs"
+  ;;
+esac
+fi
+vi_cv_path_mzscheme="$ac_cv_path_vi_cv_path_mzscheme"
+if test -n "$vi_cv_path_mzscheme"; then
+  echo "$ac_t""$vi_cv_path_mzscheme" 1>&6
+else
+  echo "$ac_t""no" 1>&6
+fi
+
+
+		        if test "X$vi_cv_path_mzscheme" != "X"; then
+	  lsout=`ls -l $vi_cv_path_mzscheme`
+	  if echo "$lsout" | grep -e '->' >/dev/null 2>/dev/null; then
+	    vi_cv_path_mzscheme=`echo "$lsout" | sed 's/.*-> \(.*\)/\1/'`
+	  fi
+	fi
+
+        if test "X$vi_cv_path_mzscheme" != "X"; then
+                        echo $ac_n "checking MzScheme install prefix""... $ac_c" 1>&6
+echo "configure:1629: checking MzScheme install prefix" >&5
+if eval "test \"`echo '$''{'vi_cv_path_mzscheme_pfx'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+   vi_cv_path_mzscheme_pfx=`
+      	    ${vi_cv_path_mzscheme} -evm \
+            "(display (simplify-path		\
+              (build-path (call-with-values	\
+      	        (lambda () (split-path (find-system-path (quote exec-file)))) \
+      	        (lambda (base name must-be-dir?) base)) (quote up))))"` 
+fi
+
+echo "$ac_t""$vi_cv_path_mzscheme_pfx" 1>&6
+	    	    vi_cv_path_mzscheme_pfx=`echo "$vi_cv_path_mzscheme_pfx" | sed 's+/$++'`
+        fi
+    fi
+  fi
+
+  if test "X$vi_cv_path_mzscheme_pfx" != "X"; then
+    echo $ac_n "checking if scheme.h can be found in $vi_cv_path_mzscheme_pfx/include""... $ac_c" 1>&6
+echo "configure:1649: checking if scheme.h can be found in $vi_cv_path_mzscheme_pfx/include" >&5
+    if test -f $vi_cv_path_mzscheme_pfx/include/scheme.h; then
+      echo "$ac_t"""yes"" 1>&6
+    else
+      echo "$ac_t"""no"" 1>&6
+      vi_cv_path_mzscheme_pfx=
+    fi
+  fi
+
+  if test "X$vi_cv_path_mzscheme_pfx" != "X"; then
+    if test -f "${vi_cv_path_mzscheme_pfx}/lib/libmzgc.a"; then
+      MZSCHEME_LIBS="${vi_cv_path_mzscheme_pfx}/lib/libmzgc.a ${vi_cv_path_mzscheme_pfx}/lib/libmzscheme.a"
+    else
+      MZSCHEME_LIBS="-L${vi_cv_path_mzscheme_pfx}/lib -lmzgc -lmzscheme"
+    fi
+    MZSCHEME_CFLAGS="-I${vi_cv_path_mzscheme_pfx}/include   \
+      -DMZSCHEME_COLLECTS='\"${vi_cv_path_mzscheme_pfx}/collects\"'"
+    MZSCHEME_SRC="if_mzsch.c"
+    MZSCHEME_OBJ="objects/if_mzsch.o"
+    MZSCHEME_PRO="if_mzsch.pro"
+    cat >> confdefs.h <<\EOF
+#define FEAT_MZSCHEME 1
+EOF
+
+  fi
+  
+  
+  
+  
+  
+fi
+
+
 echo $ac_n "checking --enable-perlinterp argument""... $ac_c" 1>&6
-echo "configure:1545: checking --enable-perlinterp argument" >&5
+echo "configure:1683: checking --enable-perlinterp argument" >&5
 # Check whether --enable-perlinterp or --disable-perlinterp was given.
 if test "${enable_perlinterp+set}" = set; then
   enableval="$enable_perlinterp"
@@ -1556,7 +1694,7 @@ if test "$enable_perlinterp" = "yes"; then
   # Extract the first word of "perl", so it can be a program name with args.
 set dummy perl; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1560: checking for $ac_word" >&5
+echo "configure:1698: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_path_vi_cv_path_perl'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1590,7 +1728,7 @@ fi
 
   if test "X$vi_cv_path_perl" != "X"; then
     echo $ac_n "checking Perl version""... $ac_c" 1>&6
-echo "configure:1594: checking Perl version" >&5
+echo "configure:1732: checking Perl version" >&5
     if $vi_cv_path_perl -e 'require 5.003_01' >/dev/null 2>/dev/null; then
      eval `$vi_cv_path_perl -V:usethreads`
      if test "X$usethreads" = "XUNKNOWN" -o "X$usethreads" = "Xundef"; then
@@ -1626,7 +1764,7 @@ echo "configure:1594: checking Perl version" >&5
 		-e 'ccdlflags' | sed -e 's/-bE:perl.exp//'`
 
                   echo $ac_n "checking if compile and link flags for Perl are sane""... $ac_c" 1>&6
-echo "configure:1630: checking if compile and link flags for Perl are sane" >&5
+echo "configure:1768: checking if compile and link flags for Perl are sane" >&5
       cflags_save=$CFLAGS
       libs_save=$LIBS
       ldflags_save=$LDFLAGS
@@ -1634,14 +1772,14 @@ echo "configure:1630: checking if compile and link flags for Perl are sane" >&5
       LIBS="$LIBS $perllibs"
       LDFLAGS="$perlldflags $LDFLAGS"
       cat > conftest.$ac_ext <<EOF
-#line 1638 "configure"
+#line 1776 "configure"
 #include "confdefs.h"
 
 int main() {
  
 ; return 0; }
 EOF
-if { (eval echo configure:1645: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:1783: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   echo "$ac_t""yes" 1>&6; perl_ok=yes
 else
@@ -1704,7 +1842,7 @@ fi
 
 
 echo $ac_n "checking --enable-pythoninterp argument""... $ac_c" 1>&6
-echo "configure:1708: checking --enable-pythoninterp argument" >&5
+echo "configure:1846: checking --enable-pythoninterp argument" >&5
 # Check whether --enable-pythoninterp or --disable-pythoninterp was given.
 if test "${enable_pythoninterp+set}" = set; then
   enableval="$enable_pythoninterp"
@@ -1718,7 +1856,7 @@ if test "$enable_pythoninterp" = "yes"; then
     # Extract the first word of "python", so it can be a program name with args.
 set dummy python; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1722: checking for $ac_word" >&5
+echo "configure:1860: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_path_vi_cv_path_python'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1753,7 +1891,7 @@ fi
   if test "X$vi_cv_path_python" != "X"; then
 
         echo $ac_n "checking Python version""... $ac_c" 1>&6
-echo "configure:1757: checking Python version" >&5
+echo "configure:1895: checking Python version" >&5
 if eval "test \"`echo '$''{'vi_cv_var_python_version'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1765,14 +1903,14 @@ fi
 echo "$ac_t""$vi_cv_var_python_version" 1>&6
 
         echo $ac_n "checking Python is 1.4 or better""... $ac_c" 1>&6
-echo "configure:1769: checking Python is 1.4 or better" >&5
+echo "configure:1907: checking Python is 1.4 or better" >&5
     if ${vi_cv_path_python} -c \
 	"import sys; sys.exit(${vi_cv_var_python_version} < 1.4)"
     then
       echo "$ac_t""yep" 1>&6
 
             echo $ac_n "checking Python's install prefix""... $ac_c" 1>&6
-echo "configure:1776: checking Python's install prefix" >&5
+echo "configure:1914: checking Python's install prefix" >&5
 if eval "test \"`echo '$''{'vi_cv_path_python_pfx'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1784,7 +1922,7 @@ fi
 echo "$ac_t""$vi_cv_path_python_pfx" 1>&6
 
             echo $ac_n "checking Python's execution prefix""... $ac_c" 1>&6
-echo "configure:1788: checking Python's execution prefix" >&5
+echo "configure:1926: checking Python's execution prefix" >&5
 if eval "test \"`echo '$''{'vi_cv_path_python_epfx'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1815,7 +1953,7 @@ fi
 
 
       echo $ac_n "checking Python's configuration directory""... $ac_c" 1>&6
-echo "configure:1819: checking Python's configuration directory" >&5
+echo "configure:1957: checking Python's configuration directory" >&5
 if eval "test \"`echo '$''{'vi_cv_path_python_conf'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1888,7 +2026,7 @@ fi
 	PYTHON_GETPATH_CFLAGS="-DPYTHONPATH='\"${vi_cv_path_pythonpath}\"' -DPREFIX='\"${vi_cv_path_python_pfx}\"' -DEXEC_PREFIX='\"${vi_cv_path_python_epfx}\"'"
 
 								echo $ac_n "checking if -pthread should be used""... $ac_c" 1>&6
-echo "configure:1892: checking if -pthread should be used" >&5
+echo "configure:2030: checking if -pthread should be used" >&5
 	threadsafe_flag=
 	thread_lib=
 	if test "x$MACOSX" != "xyes"; then
@@ -1904,14 +2042,14 @@ echo "configure:1892: checking if -pthread should be used" >&5
 	  CFLAGS="$CFLAGS $threadsafe_flag"
 	  LIBS="$LIBS $thread_lib"
 	  cat > conftest.$ac_ext <<EOF
-#line 1908 "configure"
+#line 2046 "configure"
 #include "confdefs.h"
 
 int main() {
  
 ; return 0; }
 EOF
-if { (eval echo configure:1915: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:2053: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   echo "$ac_t""yes" 1>&6; PYTHON_CFLAGS="$PYTHON_CFLAGS $threadsafe_flag"
 else
@@ -1928,20 +2066,20 @@ rm -f conftest*
 	fi
 
 			echo $ac_n "checking if compile and link flags for Python are sane""... $ac_c" 1>&6
-echo "configure:1932: checking if compile and link flags for Python are sane" >&5
+echo "configure:2070: checking if compile and link flags for Python are sane" >&5
 	cflags_save=$CFLAGS
 	libs_save=$LIBS
 	CFLAGS="$CFLAGS $PYTHON_CFLAGS"
 	LIBS="$LIBS $PYTHON_LIBS"
 	cat > conftest.$ac_ext <<EOF
-#line 1938 "configure"
+#line 2076 "configure"
 #include "confdefs.h"
 
 int main() {
  
 ; return 0; }
 EOF
-if { (eval echo configure:1945: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:2083: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   echo "$ac_t""yes" 1>&6; python_ok=yes
 else
@@ -1980,7 +2118,7 @@ fi
 
 
 echo $ac_n "checking --enable-tclinterp argument""... $ac_c" 1>&6
-echo "configure:1984: checking --enable-tclinterp argument" >&5
+echo "configure:2122: checking --enable-tclinterp argument" >&5
 # Check whether --enable-tclinterp or --disable-tclinterp was given.
 if test "${enable_tclinterp+set}" = set; then
   enableval="$enable_tclinterp"
@@ -1994,7 +2132,7 @@ echo "$ac_t""$enable_tclinterp" 1>&6
 if test "$enable_tclinterp" = "yes"; then
 
     echo $ac_n "checking --with-tclsh argument""... $ac_c" 1>&6
-echo "configure:1998: checking --with-tclsh argument" >&5
+echo "configure:2136: checking --with-tclsh argument" >&5
   # Check whether --with-tclsh or --without-tclsh was given.
 if test "${with_tclsh+set}" = set; then
   withval="$with_tclsh"
@@ -2006,7 +2144,7 @@ fi
   # Extract the first word of "$tclsh_name", so it can be a program name with args.
 set dummy $tclsh_name; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:2010: checking for $ac_word" >&5
+echo "configure:2148: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_path_vi_cv_path_tcl'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -2045,7 +2183,7 @@ fi
     # Extract the first word of "$tclsh_name", so it can be a program name with args.
 set dummy $tclsh_name; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:2049: checking for $ac_word" >&5
+echo "configure:2187: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_path_vi_cv_path_tcl'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -2083,7 +2221,7 @@ fi
     # Extract the first word of "$tclsh_name", so it can be a program name with args.
 set dummy $tclsh_name; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:2087: checking for $ac_word" >&5
+echo "configure:2225: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_path_vi_cv_path_tcl'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -2118,14 +2256,14 @@ fi
   fi
   if test "X$vi_cv_path_tcl" != "X"; then
     echo $ac_n "checking Tcl version""... $ac_c" 1>&6
-echo "configure:2122: checking Tcl version" >&5
+echo "configure:2260: checking Tcl version" >&5
     if echo 'exit [expr [info tclversion] < 8.0]' | $vi_cv_path_tcl - ; then
       tclver=`echo 'puts [info tclversion]' | $vi_cv_path_tcl -`
       echo "$ac_t""$tclver - OK" 1>&6;
       tclloc=`echo 'set l [info library];set i [string last lib $l];incr i -2;puts [string range $l 0 $i]' | $vi_cv_path_tcl -`
 
       echo $ac_n "checking for location of Tcl include""... $ac_c" 1>&6
-echo "configure:2129: checking for location of Tcl include" >&5
+echo "configure:2267: checking for location of Tcl include" >&5
       if test "x$MACOSX" != "xyes"; then
 	tclinc="$tclloc/include $tclloc/include/tcl $tclloc/include/tcl$tclver /usr/local/include"
       else
@@ -2144,7 +2282,7 @@ echo "configure:2129: checking for location of Tcl include" >&5
       fi
       if test -z "$SKIP_TCL"; then
 	echo $ac_n "checking for location of tclConfig.sh script""... $ac_c" 1>&6
-echo "configure:2148: checking for location of tclConfig.sh script" >&5
+echo "configure:2286: checking for location of tclConfig.sh script" >&5
 	if test "x$MACOSX" != "xyes"; then
 	  tclcnf=`echo $tclinc | sed s/include/lib/g`
 	else
@@ -2162,7 +2300,7 @@ echo "configure:2148: checking for location of tclConfig.sh script" >&5
 	if test -z "$TCL_LIBS"; then
 	  echo "$ac_t""<not found>" 1>&6
 	  echo $ac_n "checking for Tcl library by myself""... $ac_c" 1>&6
-echo "configure:2166: checking for Tcl library by myself" >&5
+echo "configure:2304: checking for Tcl library by myself" >&5
 	  tcllib=`echo $tclinc | sed s/include/lib/g`
 	  for ext in .so .a ; do
 	    for ver in "" $tclver ; do
@@ -2208,7 +2346,7 @@ fi
 
 
 echo $ac_n "checking --enable-rubyinterp argument""... $ac_c" 1>&6
-echo "configure:2212: checking --enable-rubyinterp argument" >&5
+echo "configure:2350: checking --enable-rubyinterp argument" >&5
 # Check whether --enable-rubyinterp or --disable-rubyinterp was given.
 if test "${enable_rubyinterp+set}" = set; then
   enableval="$enable_rubyinterp"
@@ -2223,7 +2361,7 @@ if test "$enable_rubyinterp" = "yes"; then
   # Extract the first word of "ruby", so it can be a program name with args.
 set dummy ruby; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:2227: checking for $ac_word" >&5
+echo "configure:2365: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_path_vi_cv_path_ruby'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -2257,11 +2395,11 @@ fi
 
   if test "X$vi_cv_path_ruby" != "X"; then
     echo $ac_n "checking Ruby version""... $ac_c" 1>&6
-echo "configure:2261: checking Ruby version" >&5
+echo "configure:2399: checking Ruby version" >&5
     if $vi_cv_path_ruby -e 'VERSION >= "1.6.0" or exit 1' >/dev/null 2>/dev/null; then
       echo "$ac_t""OK" 1>&6
       echo $ac_n "checking Ruby header files""... $ac_c" 1>&6
-echo "configure:2265: checking Ruby header files" >&5
+echo "configure:2403: checking Ruby header files" >&5
       rubyhdrdir=`$vi_cv_path_ruby -r mkmf -e 'print Config::CONFIG["archdir"] || $hdrdir' 2>/dev/null`
       if test "X$rubyhdrdir" != "X"; then
 	echo "$ac_t""$rubyhdrdir" 1>&6
@@ -2313,7 +2451,7 @@ fi
 
 
 echo $ac_n "checking --enable-cscope argument""... $ac_c" 1>&6
-echo "configure:2317: checking --enable-cscope argument" >&5
+echo "configure:2455: checking --enable-cscope argument" >&5
 # Check whether --enable-cscope or --disable-cscope was given.
 if test "${enable_cscope+set}" = set; then
   enableval="$enable_cscope"
@@ -2331,7 +2469,7 @@ EOF
 fi
 
 echo $ac_n "checking --enable-workshop argument""... $ac_c" 1>&6
-echo "configure:2335: checking --enable-workshop argument" >&5
+echo "configure:2473: checking --enable-workshop argument" >&5
 # Check whether --enable-workshop or --disable-workshop was given.
 if test "${enable_workshop+set}" = set; then
   enableval="$enable_workshop"
@@ -2356,7 +2494,7 @@ EOF
 fi
 
 echo $ac_n "checking --disable-netbeans argument""... $ac_c" 1>&6
-echo "configure:2360: checking --disable-netbeans argument" >&5
+echo "configure:2498: checking --disable-netbeans argument" >&5
 # Check whether --enable-netbeans or --disable-netbeans was given.
 if test "${enable_netbeans+set}" = set; then
   enableval="$enable_netbeans"
@@ -2368,7 +2506,7 @@ fi
 if test "$enable_netbeans" = "yes"; then
   echo "$ac_t""no" 1>&6
     echo $ac_n "checking for socket in -lsocket""... $ac_c" 1>&6
-echo "configure:2372: checking for socket in -lsocket" >&5
+echo "configure:2510: checking for socket in -lsocket" >&5
 ac_lib_var=`echo socket'_'socket | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -2376,7 +2514,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lsocket  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 2380 "configure"
+#line 2518 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -2387,7 +2525,7 @@ int main() {
 socket()
 ; return 0; }
 EOF
-if { (eval echo configure:2391: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:2529: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"