Fix --local-rust-root option on Windows

configure

@@ -520,14 +520,20 @@ then
     fi
 fi
 
+BIN_SUF=
+if [ $CFG_OSTYPE = "pc-mingw32" ]
+then
+    BIN_SUF=.exe
+fi
+
 if [ ! -z "$CFG_ENABLE_LOCAL_RUST" ]
 then
-    if [ ! -f ${CFG_LOCAL_RUST_ROOT}/bin/rustc ]
+    if [ ! -f ${CFG_LOCAL_RUST_ROOT}/bin/rustc${BIN_SUF} ]
     then
         err "no local rust to use"
     else
-        LRV=`${CFG_LOCAL_RUST_ROOT}/bin/rustc --version`
-        step_msg "using rustc at: ${CFG_LOCAL_RUST_ROOT} with version: " $LRV
+        LRV=`${CFG_LOCAL_RUST_ROOT}/bin/rustc${BIN_SUF} --version`
+        step_msg "using rustc at: ${CFG_LOCAL_RUST_ROOT} with version: $LRV"
     fi
 fi
 

src/etc/local_stage0.sh

@@ -3,8 +3,8 @@
 TARG_DIR=$1
 PREFIX=$2
 
-BINDIR=bin
-LIBDIR=lib
+LIB_DIR=lib
+LIB_PREFIX=lib
 
 OS=`uname -s`
 case $OS in
@@ -21,7 +21,8 @@ case $OS in
     (*)
 	BIN_SUF=.exe
 	LIB_SUF=.dll
-	LIBDIR=bin
+	LIB_DIR=bin
+	LIB_PREFIX=
 	break
 	;;
 esac
@@ -31,7 +32,7 @@ if [ -z $PREFIX ]; then
     exit 1
 fi
 
-if [ ! -e ${PREFIX}/bin/rustc ]; then
+if [ ! -e ${PREFIX}/bin/rustc${BIN_SUF} ]; then
     echo "No local rust installed at ${PREFIX}"
     exit 1
 fi
@@ -41,9 +42,9 @@ if [ -z $TARG_DIR ]; then
     exit 1
 fi
 
-cp ${PREFIX}/bin/rustc ${TARG_DIR}/stage0/bin/
-cp ${PREFIX}/lib/rustc/${TARG_DIR}/${LIBDIR}/* ${TARG_DIR}/stage0/${LIBDIR}/
-cp ${PREFIX}/lib/libextra*${LIB_SUF} ${TARG_DIR}/stage0/${LIBDIR}/
-cp ${PREFIX}/lib/librust*${LIB_SUF} ${TARG_DIR}/stage0/${LIBDIR}/
-cp ${PREFIX}/lib/libstd*${LIB_SUF} ${TARG_DIR}/stage0/${LIBDIR}/
-cp ${PREFIX}/lib/libsyntax*${LIB_SUF} ${TARG_DIR}/stage0/${LIBDIR}/
+cp ${PREFIX}/bin/rustc${BIN_SUF} ${TARG_DIR}/stage0/bin/
+cp ${PREFIX}/${LIB_DIR}/rustc/${TARG_DIR}/${LIB_DIR}/* ${TARG_DIR}/stage0/${LIB_DIR}/
+cp ${PREFIX}/${LIB_DIR}/${LIB_PREFIX}extra*${LIB_SUF} ${TARG_DIR}/stage0/${LIB_DIR}/
+cp ${PREFIX}/${LIB_DIR}/${LIB_PREFIX}rust*${LIB_SUF} ${TARG_DIR}/stage0/${LIB_DIR}/
+cp ${PREFIX}/${LIB_DIR}/${LIB_PREFIX}std*${LIB_SUF} ${TARG_DIR}/stage0/${LIB_DIR}/
+cp ${PREFIX}/${LIB_DIR}/${LIB_PREFIX}syntax*${LIB_SUF} ${TARG_DIR}/stage0/${LIB_DIR}/