Merge branch 'pan/win64-port'

* pan/win64-port:
  Update static cache
  Back to not using 32bit time_t
  Remove ancient WaitForInputIdle workaround
  Iron out bugs in Win64 found in daily builds
  Make Win64 build work both under MSYS and Cygwin
  Fix aclocal.m4 to override changes in opu
  Make whole of OTP build and release on Win64
  Get cerl and distribution working in Win64
  Get working prompt in Win64 using bootstrap code
  Build Win64 Erlang emulator using MSYS
  Add static win64 cache

OTP-9130
OTP-9766

22 files changed, 1441 insertions, 34 deletions

diff --git a/erts/etc/common/Makefile.in b/erts/etc/common/Makefile.in
index 4754328c0b..689ff05582 100644
--- a/erts/etc/common/Makefile.in
+++ b/erts/etc/common/Makefile.in
@@ -22,7 +22,7 @@ include $(ERL_TOP)/make/target.mk
 ERTS_LIB_TYPEMARKER=.$(TYPE)
 
 USING_MINGW=@MIXED_CYGWIN_MINGW@
-USING_VC=@MIXED_CYGWIN_VC@
+USING_VC=@MIXED_VC@
 
 ifeq ($(TYPE),debug)
 PURIFY =
diff --git a/erts/etc/win32/cygwin_tools/vc/emu_cc.sh b/erts/etc/win32/cygwin_tools/vc/emu_cc.sh
index c74c35111b..f7c34a4564 100755
--- a/erts/etc/win32/cygwin_tools/vc/emu_cc.sh
+++ b/erts/etc/win32/cygwin_tools/vc/emu_cc.sh
@@ -17,6 +17,11 @@
 # 
 # %CopyrightEnd%
 # 
+if [ X"$CONFIG_SUBTYPE" = X"win64" ]; then
+    GCC="x86_64-w64-mingw32-gcc.exe"
+else 
+    GCC="gcc"
+fi
 TOOLDIR=$ERL_TOP/erts/etc/win32/cygwin_tools/vc
 COFFIX=$TOOLDIR/coffix
 WTOOLDIR=`(cygpath -d $TOOLDIR 2>/dev/null || cygpath -w $TOOLDIR)`
@@ -71,7 +76,7 @@ if [ $SKIP_COFFIX = false ]; then
     if [ "X$EMU_CC_SH_DEBUG_LOG" != "X" ]; then
 	echo "gcc -o $TEMPFILE -D__WIN32__ -DWIN32 -DWINDOWS -fomit-frame-pointer $CMD" >> $EMU_CC_SH_DEBUG_LOG 2>&1
     fi
-    eval gcc -o $TEMPFILE -D__WIN32__ -DWIN32 -DWINDOWS -fomit-frame-pointer $CMD
+    eval $GCC -o $TEMPFILE -D__WIN32__ -DWIN32 -DWINDOWS -fomit-frame-pointer $CMD
     RES=$?
     if [ $RES = 0 ]; then
 	$COFFIX.exe -e `(cygpath -d $TEMPFILE 2>/dev/null || cygpath -w $TEMPFILE)`
@@ -85,6 +90,6 @@ if [ $SKIP_COFFIX = false ]; then
     rm -f $TEMPFILE
     exit $RES
 else
-    eval gcc -D__WIN32__ -DWIN32 -DWINDOWS -fomit-frame-pointer -fno-tree-copyrename $CMD 2>/dev/null
+    eval $GCC -D__WIN32__ -DWIN32 -DWINDOWS -fomit-frame-pointer -fno-tree-copyrename $CMD 2>/dev/null
     exit $?
 fi
diff --git a/erts/etc/win32/msys_tools/erl b/erts/etc/win32/msys_tools/erl
new file mode 100644
index 0000000000..cf49c33229
--- /dev/null
+++ b/erts/etc/win32/msys_tools/erl
@@ -0,0 +1,42 @@
+#! /bin/sh
+# 
+# %CopyrightBegin%
+# 
+# Copyright Ericsson AB 2002-2009. All Rights Reserved.
+# 
+# The contents of this file are subject to the Erlang Public License,
+# Version 1.1, (the "License"); you may not use this file except in
+# compliance with the License. You should have received a copy of the
+# Erlang Public License along with this software. If not, it can be
+# retrieved online at http://www.erlang.org/.
+# 
+# Software distributed under the License is distributed on an "AS IS"
+# basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+# the License for the specific language governing rights and limitations
+# under the License.
+# 
+# %CopyrightEnd%
+# 
+# Note! This shellscript expects to be run in a cygwin environment,
+# it converts erlc command lines to native windows erlc commands, which
+# basically means running the command cygpath on whatever is a path...
+
+CMD=""
+for x in "$@"; do 
+    case "$x" in
+	-I/*|-o/*)
+	    y=`echo $x | sed 's,^-[Io]\(/.*\),\1,g'`;
+	    z=`echo $x | sed 's,^-\([Io]\)\(/.*\),\1,g'`;
+	    MPATH=`msys2win_path.sh -m $y`;
+	    CMD="$CMD -$z\"$MPATH\"";; 
+	/*)
+	    MPATH=`msys2win_path.sh -m $x`;
+	    CMD="$CMD \"$MPATH\"";; 
+	*)
+	    y=`echo $x | sed 's,",\\\",g'`;
+	    CMD="$CMD \"$y\"";;
+    esac
+done
+ERL_TOP=`msys2win_path.sh -m $ERL_TOP`
+export ERL_TOP
+eval erl.exe $CMD
diff --git a/erts/etc/win32/msys_tools/erlc b/erts/etc/win32/msys_tools/erlc
new file mode 100644
index 0000000000..3793182aa8
--- /dev/null
+++ b/erts/etc/win32/msys_tools/erlc
@@ -0,0 +1,59 @@
+#! /bin/sh
+# 
+# %CopyrightBegin%
+# 
+# Copyright Ericsson AB 2002-2009. All Rights Reserved.
+# 
+# The contents of this file are subject to the Erlang Public License,
+# Version 1.1, (the "License"); you may not use this file except in
+# compliance with the License. You should have received a copy of the
+# Erlang Public License along with this software. If not, it can be
+# retrieved online at http://www.erlang.org/.
+# 
+# Software distributed under the License is distributed on an "AS IS"
+# basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+# the License for the specific language governing rights and limitations
+# under the License.
+# 
+# %CopyrightEnd%
+# 
+
+
+CMD=""
+ECHO_ONLY=false
+for x in "$@"; do 
+    case "$x" in
+	--echo_only)
+	    ECHO_ONLY=true;;
+	-I/*|-o/*)
+	    y=`echo $x | sed 's,^-[Io]\(/.*\),\1,g'`;
+	    z=`echo $x | sed 's,^-\([Io]\)\(/.*\),\1,g'`;
+	    MPATH=`msys2win_path.sh -m $y`;
+	    CMD="$CMD -$z$MPATH";;
+	-pa/*)
+	    y=`echo $x | sed 's,^-pa\(/.*\),\1,g'`;
+	    MPATH=`msys2win_path.sh -m $y`;
+	    CMD="$CMD -pa $MPATH";;
+	/*)
+	    MPATH=`msys2win_path.sh -m $x`;
+	    CMD="$CMD \"$MPATH\"";; 
+# Needed for  +'{preproc_flags,whatever}'
+	+{preproc_flags,*})
+	     y=`echo $x | sed 's,^+{preproc_flags\,"\(.*\)"},\1,g'`;
+	     z=`eval $0 --echo_only $y`;
+	     case "$z" in # Dont "doubledoublequote"
+		 \"*\") 
+		 CMD="$CMD +'{preproc_flags,$z}'";;
+		 *)
+		 CMD="$CMD +'{preproc_flags,\"$z\"}'";;
+	     esac;;
+	*)
+	    y=`echo $x | sed 's,",\\\",g'`;
+	    CMD="$CMD \"$y\"";;
+    esac
+done
+if [ $ECHO_ONLY = true ]; then
+    echo $CMD
+else
+    eval erlc.exe $CMD
+fi
diff --git a/erts/etc/win32/msys_tools/javac.sh b/erts/etc/win32/msys_tools/javac.sh
new file mode 100644
index 0000000000..3dc3c55b09
--- /dev/null
+++ b/erts/etc/win32/msys_tools/javac.sh
@@ -0,0 +1,65 @@
+#! /bin/sh
+# 
+# %CopyrightBegin%
+# 
+# Copyright Ericsson AB 2002-2009. All Rights Reserved.
+# 
+# The contents of this file are subject to the Erlang Public License,
+# Version 1.1, (the "License"); you may not use this file except in
+# compliance with the License. You should have received a copy of the
+# Erlang Public License along with this software. If not, it can be
+# retrieved online at http://www.erlang.org/.
+# 
+# Software distributed under the License is distributed on an "AS IS"
+# basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+# the License for the specific language governing rights and limitations
+# under the License.
+# 
+# %CopyrightEnd%
+# 
+# Note! This shellscript expects to be run in a cygwin environment,
+# it converts erlc command lines to native windows erlc commands, which
+# basically means running the command cygpath on whatever is a path...
+
+CMD=""
+save_IFS=$IFS
+IFS=":"
+NEWCLASSPATH=""
+for x in $CLASSPATH; do
+  TMP=`msys2win_path.sh -m $x`
+  if [ -z "$NEWCLASSPATH" ]; then
+      NEWCLASSPATH="$TMP"
+  else
+      NEWCLASSPATH="$NEWCLASSPATH;$TMP"
+  fi
+done
+IFS=$save_IFS
+CLASSPATH="$NEWCLASSPATH"
+export CLASSPATH
+#echo "CLASSPATH=$CLASSPATH"
+SAVE="$@"
+while test -n "$1" ; do
+    x="$1"
+    case "$x" in
+	-I/*|-o/*|-d/*)
+	    y=`echo $x | sed 's,^-[Iod]\(/.*\),\1,g'`;
+	    z=`echo $x | sed 's,^-\([Iod]\)\(/.*\),\1,g'`;
+	    #echo "Foooo:$z"
+	    MPATH=`msys2win_path.sh -m $y`;
+	    CMD="$CMD -$z\"$MPATH\"";; 
+	-d|-I|-o)
+	    shift;
+	    MPATH=`msys2win_path.sh -m $1`;
+	    CMD="$CMD $x $MPATH";; 
+	/*)
+	    #echo "absolute:"$x;
+	    MPATH=`msys2win_path.sh -m $x`;
+	    CMD="$CMD \"$MPATH\"";; 
+	*)
+	    y=`echo $x | sed 's,",\\\",g'`;
+	    CMD="$CMD \"$y\"";;
+    esac
+    shift
+done
+#echo javac.exe "$CMD"
+eval javac.exe "$CMD"
diff --git a/erts/etc/win32/msys_tools/make_bootstrap_ini.sh b/erts/etc/win32/msys_tools/make_bootstrap_ini.sh
new file mode 100644
index 0000000000..954bd5de30
--- /dev/null
+++ b/erts/etc/win32/msys_tools/make_bootstrap_ini.sh
@@ -0,0 +1,44 @@
+#! /bin/bash
+# 
+# %CopyrightBegin%
+# 
+# Copyright Ericsson AB 2003-2009. All Rights Reserved.
+# 
+# The contents of this file are subject to the Erlang Public License,
+# Version 1.1, (the "License"); you may not use this file except in
+# compliance with the License. You should have received a copy of the
+# Erlang Public License along with this software. If not, it can be
+# retrieved online at http://www.erlang.org/.
+# 
+# Software distributed under the License is distributed on an "AS IS"
+# basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+# the License for the specific language governing rights and limitations
+# under the License.
+# 
+# %CopyrightEnd%
+# 
+# Create a local init-file for erlang in the build environment.
+if [ -z "$1" ]; then
+	echo "error: $0: No rootdir given"
+ 	exit 1
+else
+    RDIR=$1
+fi
+if [ -z "$2" ]; then
+	echo "error: $0: No bindir given"
+ 	exit 1
+else
+    BDIR=$2
+fi
+
+DRDIR=`msys2win_path.sh $RDIR | sed 's,\\\,\\\\\\\\,g'`
+DBDIR=`msys2win_path.sh $BDIR | sed 's,\\\,\\\\\\\\,g'`
+
+
+cat > $RDIR/bin/erl.ini <<EOF
+[erlang]
+Bindir=$DBDIR
+Progname=erl
+Rootdir=$DRDIR
+EOF
+
diff --git a/erts/etc/win32/msys_tools/make_local_ini.sh b/erts/etc/win32/msys_tools/make_local_ini.sh
new file mode 100644
index 0000000000..01c536461e
--- /dev/null
+++ b/erts/etc/win32/msys_tools/make_local_ini.sh
@@ -0,0 +1,41 @@
+#! /bin/bash
+# 
+# %CopyrightBegin%
+# 
+# Copyright Ericsson AB 2003-2009. All Rights Reserved.
+# 
+# The contents of this file are subject to the Erlang Public License,
+# Version 1.1, (the "License"); you may not use this file except in
+# compliance with the License. You should have received a copy of the
+# Erlang Public License along with this software. If not, it can be
+# retrieved online at http://www.erlang.org/.
+# 
+# Software distributed under the License is distributed on an "AS IS"
+# basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+# the License for the specific language governing rights and limitations
+# under the License.
+# 
+# %CopyrightEnd%
+# 
+# Create a local init-file for erlang in the build environment.
+if [ -z "$1" ]; then
+    if [ -z $ERL_TOP ]; then
+	echo "error: $0: No rootdir available"
+ 	exit 1
+    else
+	RDIR=$ERL_TOP
+    fi
+else
+    RDIR=$1
+fi
+
+DDIR=`msys2win_path.sh $RDIR | sed 's,\\\,\\\\\\\\,g'`
+
+
+cat > $RDIR/bin/erl.ini <<EOF
+[erlang]
+Bindir=$DDIR\\\\bin\\\\win32
+Progname=erl
+Rootdir=$DDIR
+EOF
+
diff --git a/erts/etc/win32/msys_tools/msys2win_path.sh b/erts/etc/win32/msys_tools/msys2win_path.sh
new file mode 100644
index 0000000000..679a9d6a8f
--- /dev/null
+++ b/erts/etc/win32/msys_tools/msys2win_path.sh
@@ -0,0 +1,44 @@
+#! /bin/bash

+MIXED=false

+ABSOLUTE=false

+done=false

+while [ $done = false ]; do

+    case "$1" in

+	-m) 

+	    MIXED=true;

+	    shift;;

+	-a)

+	    ABSOLUTE=true;

+	    shift;;

+	*)

+	    done=true;;

+    esac

+done

+if [ -z "$1" ]; then

+    echo "Usage: $0 <path>" >&2

+    exit 1;

+fi

+MSYS_PATH=`win2msys_path.sh "$1"` # Clean up spaces

+if [ $ABSOLUTE = true ]; then

+    MSYS_DIR=`dirname "$MSYS_PATH"`

+    MSYS_FILE=`basename "$MSYS_PATH"`

+    if [ X"$MSYS_FILE" = X".." ]; then

+	MSYS_DIR="$MSYS_DIR/$MSYS_FILE"

+	WIN_ADD=""

+    else

+	WIN_ADD="/$MSYS_FILE"

+    fi

+    SAVEDIR=`pwd`

+    cd $MSYS_DIR

+    CURRENT=`pwd`

+    cd $SAVEDIR

+    WINPATH=`cmd //C echo $CURRENT`

+    WINPATH="$WINPATH$WIN_ADD"

+else

+    WINPATH=`cmd //c echo $MSYS_PATH`

+fi

+if [ $MIXED = true ]; then

+    echo $WINPATH

+else

+    echo $WINPATH | sed 's,/,\\,g'

+fi
\ No newline at end of file
diff --git a/erts/etc/win32/msys_tools/reg_query.sh b/erts/etc/win32/msys_tools/reg_query.sh
new file mode 100644
index 0000000000..ae6d5c3218
--- /dev/null
+++ b/erts/etc/win32/msys_tools/reg_query.sh
@@ -0,0 +1,24 @@
+#! /bin/sh

+BAT_FILE=/tmp/w$$.bat

+if [ -z "$1" -o -z "$2" ]; then

+    echo "Usage:" "$0" '<key> <valuename>'

+    exit 1

+fi

+BACKED=`echo "$1" | sed 's,/,\\\\,g'`

+# We need to get the 64bit part of the registry, hence we need to execute 

+# a 64bit reg.exe, but c:\windows\system32 is redirected to 32bit versions

+# if we ate in the 32bit virtual environment, why we need to use the 

+# sysnative trick to get to the 64bit executable of reg.exe (ouch!)

+if [ -d $WINDIR/sysnative ]; then

+    REG_CMD="$WINDIR\\sysnative\\reg.exe"

+else

+    REG_CMD="reg"

+fi

+cat > $BAT_FILE <<EOF

+@echo off

+$REG_CMD query "$BACKED" /v "$2"

+EOF

+#echo $BAT_FILE

+#cat $BAT_FILE

+RESULT=`cmd //C $BAT_FILE`

+echo $RESULT | sed "s,.*$2 REG_[^ ]* ,,"

diff --git a/erts/etc/win32/msys_tools/vc/ar.sh b/erts/etc/win32/msys_tools/vc/ar.sh
new file mode 100644
index 0000000000..68f3dad5c6
--- /dev/null
+++ b/erts/etc/win32/msys_tools/vc/ar.sh
@@ -0,0 +1,47 @@
+#! /bin/sh
+# 
+# %CopyrightBegin%
+# 
+# Copyright Ericsson AB 2002-2009. All Rights Reserved.
+# 
+# The contents of this file are subject to the Erlang Public License,
+# Version 1.1, (the "License"); you may not use this file except in
+# compliance with the License. You should have received a copy of the
+# Erlang Public License along with this software. If not, it can be
+# retrieved online at http://www.erlang.org/.
+# 
+# Software distributed under the License is distributed on an "AS IS"
+# basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+# the License for the specific language governing rights and limitations
+# under the License.
+# 
+# %CopyrightEnd%
+# 
+CMD=""
+while test -n "$1" ; do
+    x="$1"
+    case "$x" in
+	-out:)
+	    shift
+	    case "$1" in
+		/*)
+		    MPATH=`msys2win_path.sh -m $1`;;
+		 *)
+		    MPATH=$1;;
+	    esac
+	    CMD="$CMD -out:\"$MPATH\"";; 
+	-out:/*)
+	    y=`echo $x | sed 's,^-out:\(/.*\),\1,g'`;
+	    MPATH=`msys2win_path.sh -m $y`;
+	    CMD="$CMD -out:\"$MPATH\"";; 
+	/*)
+	    MPATH=`msys2win_path.sh -m $x`;
+	    CMD="$CMD \"$MPATH\"";; 
+	*)
+	    y=`echo $x | sed 's,",\\\",g'`;
+	    CMD="$CMD \"$y\"";;
+    esac
+    shift
+done
+
+eval lib.exe $CMD
diff --git a/erts/etc/win32/msys_tools/vc/cc.sh b/erts/etc/win32/msys_tools/vc/cc.sh
new file mode 100644
index 0000000000..3250ce158f
--- /dev/null
+++ b/erts/etc/win32/msys_tools/vc/cc.sh
@@ -0,0 +1,320 @@
+#! /bin/sh
+# 
+# %CopyrightBegin%
+# 
+# Copyright Ericsson AB 2002-2009. All Rights Reserved.
+# 
+# The contents of this file are subject to the Erlang Public License,
+# Version 1.1, (the "License"); you may not use this file except in
+# compliance with the License. You should have received a copy of the
+# Erlang Public License along with this software. If not, it can be
+# retrieved online at http://www.erlang.org/.
+# 
+# Software distributed under the License is distributed on an "AS IS"
+# basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+# the License for the specific language governing rights and limitations
+# under the License.
+# 
+# %CopyrightEnd%
+# 
+# Icky cl wrapper that does it's best to behave like a Unixish cc.
+# Made to work for Erlang builds and to make configure happy, not really 
+# general I suspect.
+# set -x
+# Save the command line for debug outputs
+
+SAVE="$@"
+
+# Constants
+COMMON_CFLAGS="-nologo -D__WIN32__ -DWIN32 -DWINDOWS -D_WIN32 -DNT -D_CRT_SECURE_NO_DEPRECATE"
+
+# Variables
+# The stdout and stderr for the compiler
+MSG_FILE=/tmp/cl.exe.$$.1
+ERR_FILE=/tmp/cl.exe.$$.2
+
+# "Booleans" determined during "command line parsing"
+# If the stdlib option is explicitly passed to this program
+MD_FORCED=false
+# If we're preprocession (only) i.e. -E
+PREPROCESSING=false
+# If we're generating dependencies (implies preprocesing)
+DEPENDENCIES=false
+# If this is supposed to be a debug build
+DEBUG_BUILD=false
+# If this is supposed to be an optimized build (there can only be one...)
+OPTIMIZED_BUILD=false
+# If we're linking or only compiling
+LINKING=true
+
+# This data is accumulated during command line "parsing"
+# The stdlibrary option, default multithreaded dynamic
+MD=-MD
+# Flags for debug compilation
+DEBUG_FLAGS=""
+# Flags for optimization
+OPTIMIZE_FLAGS=""
+# The specified output filename (if any), may be either object or exe.
+OUTFILE=""
+# Unspecified command line options for the compiler
+CMD=""
+# All the c source files, in unix style
+SOURCES=""
+# All the options to pass to the linker, kept in Unix style
+LINKCMD=""
+
+
+# Loop through the parameters and set the above variables accordingly
+# Also convert some cygwin filenames to "mixed style" dito (understood by the
+# compiler very well), except for anything passed to the linker, that script
+# handles those and the sources, which are also kept unixish for now
+
+while test -n "$1" ; do
+    x="$1"
+    case "$x" in
+	-Wall)
+	    ;;
+	-c) 
+	    LINKING=false;;
+	    #CMD="$CMD -c";;
+	-MM)
+	    PREPROCESSING=true;
+	    LINKING=false;
+	    DEPENDENCIES=true;;
+	-E)
+	    PREPROCESSING=true;
+	    LINKING=false;; # Obviously...
+	    #CMD="$CMD -E";;
+	-Owx)
+	    # Optimization hardcoded of wxErlang, needs to disable debugging too
+	    OPTIMIZE_FLAGS="-Ob2ity -Gs -Zi";
+	    DEBUG_FLAGS="";
+	    DEBUG_BUILD=false;
+	    if [ $MD_FORCED = false ]; then
+		MD=-MD;
+	    fi
+	    OPTIMIZED_BUILD=true;;
+	-O*)
+	    # Optimization hardcoded, needs to disable debugging too
+	    OPTIMIZE_FLAGS="-Ox -Zi";
+	    DEBUG_FLAGS="";
+	    DEBUG_BUILD=false;
+	    if [ $MD_FORCED = false ]; then
+		MD=-MD;
+	    fi
+	    OPTIMIZED_BUILD=true;;
+	-g|-ggdb)
+	    if [ $OPTIMIZED_BUILD = false ];then
+		# Hardcoded windows debug flags
+		DEBUG_FLAGS="-Z7";
+		if [ $MD_FORCED = false ]; then
+		    MD=-MDd;
+		fi
+		LINKCMD="$LINKCMD -g";
+		DEBUG_BUILD=true;
+	    fi;;
+	# Allow forcing of stdlib
+	-mt|-MT)
+	    MD="-MT";
+	    MD_FORCED=true;;
+	-md|-MD)
+	    MD="-MD";
+	    MD_FORCED=true;;
+	-ml|-ML)
+	    MD="-ML";
+	    MD_FORCED=true;;
+	-mdd|-MDD|-MDd)
+	    MD="-MDd";
+	    MD_FORCED=true;;
+	-mtd|-MTD|-MTd)
+	    MD="-MTd";
+	    MD_FORCED=true;;
+	-mld|-MLD|-MLd)
+	    MD="-MLd";
+	    MD_FORCED=true;;
+	-o)
+	    shift;
+	    OUTFILE="$1";;
+	-o*)
+	    y=`echo $x | sed 's,^-[Io]\(.*\),\1,g'`;
+	    OUTFILE="$y";;
+	-I/*)
+	    y=`echo $x | sed 's,^-[Io]\(/.*\),\1,g'`;
+	    z=`echo $x | sed 's,^-\([Io]\)\(/.*\),\1,g'`;
+	    MPATH=`echo $y`;
+	    CMD="$CMD -$z\"$MPATH\"";; 
+	-I*)
+	    y=`echo $x | sed 's,",\\\",g'`;
+	    CMD="$CMD $y";;
+	-D*)
+	    y=`echo $x | sed 's,",\\\",g'`;
+	    CMD="$CMD $y";;
+	-EH*)
+	    y=`echo $x | sed 's,",\\\",g'`;
+	    CMD="$CMD $y";;
+	-TP|-Tp)
+	    y=`echo $x | sed 's,",\\\",g'`;
+	    CMD="$CMD $y";;
+	-l*)
+	    y=`echo $x | sed 's,^-l\(.*\),\1,g'`;
+	    LINKCMD="$LINKCMD $x";;
+	/*.c)
+	    SOURCES="$SOURCES $x";;
+	*.c)
+	    SOURCES="$SOURCES $x";;
+	/*.cc)
+	    SOURCES="$SOURCES $x";;
+	*.cc)
+	    SOURCES="$SOURCES $x";;
+	/*.cpp)
+	    SOURCES="$SOURCES $x";;
+	*.cpp)
+	    SOURCES="$SOURCES $x";;
+	/*.o)
+	    LINKCMD="$LINKCMD $x";;
+	*.o)
+	    LINKCMD="$LINKCMD $x";;
+	*)
+	    # Try to quote uninterpreted options
+	    y=`echo $x | sed 's,",\\\",g'`;
+	    LINKCMD="$LINKCMD $y";;
+    esac
+    shift
+done
+
+#Return code from compiler, linker.sh and finally this script...
+RES=0
+
+# Accumulated object names
+ACCUM_OBJECTS=""
+
+# A temporary object file location
+TMPOBJDIR=/tmp/tmpobj$$
+mkdir $TMPOBJDIR
+
+# Compile
+for x in $SOURCES; do
+    start_time=`date '+%s'` 
+    # Compile each source
+    if [ $LINKING = false ]; then
+	# We should have an output defined, which is a directory 
+	# or an object file
+	case $OUTFILE in
+	    /*.o)
+		# Simple output, SOURCES should be one single
+		n=`echo $SOURCES | wc -w`;
+		if [ $n -gt 1 ]; then
+		    echo "cc.sh:Error, multiple sources, one object output.";
+		    exit 1;
+		else
+		    output_filename=`echo $OUTFILE`;
+		fi;;
+	    *.o)
+		# Relative path needs no translation
+		n=`echo $SOURCES | wc -w`
+		if [ $n -gt 1 ]; then
+		    echo "cc.sh:Error, multiple sources, one object output."
+		    exit 1
+		else
+		    output_filename=$OUTFILE
+		fi;;
+	    /*)
+		# Absolute directory
+		o=`echo $x | sed 's,.*/,,' | sed 's,\.c$,.o,'`
+		output_filename=`echo $OUTFILE`
+		output_filename="$output_filename/${o}";;
+	    *)
+		# Relative_directory or empty string (.//x.o is valid)
+		o=`echo $x | sed 's,.*/,,' | sed 's,\.cp*$,.o,'`
+		output_filename="./${OUTFILE}/${o}";;
+	esac
+    else
+	# We are linking, which means we build objects in a temporary 
+	# directory and link from there. We should retain the basename
+	# of each source to make examining the exe easier...
+	o=`echo $x | sed 's,.*/,,' | sed 's,\.c$,.o,'`
+	output_filename=$TMPOBJDIR/$o
+	ACCUM_OBJECTS="$ACCUM_OBJECTS $output_filename"
+    fi
+    # Now we know enough, lets try a compilation...
+    MPATH=`echo $x`
+    if [ $PREPROCESSING = true ]; then
+	output_flag="-E"
+    else
+	output_flag="-c -Fo`cmd //C echo ${output_filename}`"
+    fi
+    params="$COMMON_CFLAGS $MD $DEBUG_FLAGS $OPTIMIZE_FLAGS \
+	    $CMD ${output_flag} $MPATH"
+    if [ "X$CC_SH_DEBUG_LOG" != "X" ]; then
+	echo cc.sh "$SAVE" >>$CC_SH_DEBUG_LOG
+	echo cl.exe $params >>$CC_SH_DEBUG_LOG
+    fi
+    eval cl.exe $params >$MSG_FILE 2>$ERR_FILE
+    RES=$?
+    if test $PREPROCESSING = false; then
+	cat $ERR_FILE >&2
+	tail -n +2 $MSG_FILE
+    else
+	tail -n +2 $ERR_FILE >&2
+	if test $DEPENDENCIES = true; then
+	    if test `grep -v $x $MSG_FILE | grep -c '#line'` != "0"; then
+		o=`echo $x | sed 's,.*/,,' | sed 's,\.cp*$,.o,'`
+		echo -n $o':'
+#		cat $MSG_FILE | grep '#line' | grep -v $x | awk -F\" '{printf("%s\n",$2)}' | sort -u | grep -v " " | xargs -n 1 win2msys_path.sh | awk '{printf("\\\n %s ",$0)}' 
+		cat $MSG_FILE | grep '#line' | grep -v $x | awk -F\" '{printf("%s\n",$2)}' | sort -u | grep -v " " | sed 's,^\([A-Za-z]\):[\\/]*,/\1/,;s,\\\\*,/,g'| awk '{printf("\\\n %s ",$0)}' 
+		echo
+		echo 
+		after_sed=`date '+%s'`
+		echo Made dependencises for $x':' `expr $after_sed '-' $start_time` 's' >&2
+	    fi 
+	else
+	    cat $MSG_FILE
+	fi
+    fi
+    rm -f $ERR_FILE $MSG_FILE
+    if [ $RES != 0 ]; then
+	rm -rf $TMPOBJDIR
+	exit $RES
+    fi
+done
+
+# If we got here, we succeeded in compiling (if there were anything to compile)
+# The output filename should name an executable if we're linking
+if [ $LINKING = true ]; then
+    case $OUTFILE in
+	"")
+	    # Use the first source name to name the executable
+	    first_source=""
+	    for x in $SOURCES; do first_source=$x; break; done;
+	    if [ -n "$first_source" ]; then
+		e=`echo $x | sed 's,.*/,,' | sed 's,\.c$,.exe,'`;
+		out_spec="-o $e";
+	    else
+		out_spec="";
+	    fi;;
+	*)
+	    out_spec="-o $OUTFILE";;
+    esac
+    # Descide which standard library to link against
+    case $MD in
+	-ML)
+	    stdlib="-lLIBC";;
+	-MLd)
+	    stdlib="-lLIBCD";;
+	-MD)
+	    stdlib="-lMSVCRT";;
+	-MDd)
+	    stdlib="-lMSVCRTD";;
+	-MT)
+	    stdlib="-lLIBCMT";;
+	-MTd)
+	    stdlib="-lLIBMTD";;
+    esac
+    # And finally call the next script to do the linking...
+    params="$out_spec $LINKCMD $stdlib" 
+    eval ld.sh $ACCUM_OBJECTS $params
+    RES=$?
+fi
+rm -rf $TMPOBJDIR
+
+exit $RES
diff --git a/erts/etc/win32/msys_tools/vc/coffix.c b/erts/etc/win32/msys_tools/vc/coffix.c
new file mode 100644
index 0000000000..dee0132a61
--- /dev/null
+++ b/erts/etc/win32/msys_tools/vc/coffix.c
@@ -0,0 +1,161 @@
+/*
+ * %CopyrightBegin%
+ * 
+ * Copyright Ericsson AB 1999-2009. All Rights Reserved.
+ * 
+ * The contents of this file are subject to the Erlang Public License,
+ * Version 1.1, (the "License"); you may not use this file except in
+ * compliance with the License. You should have received a copy of the
+ * Erlang Public License along with this software. If not, it can be
+ * retrieved online at http://www.erlang.org/.
+ * 
+ * Software distributed under the License is distributed on an "AS IS"
+ * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+ * the License for the specific language governing rights and limitations
+ * under the License.
+ * 
+ * %CopyrightEnd%
+ */
+/*
+** This mini tool fixes an incompatibility between 
+** Microsoft's tools, who dont like the virtual size being put in
+** the physical address field, but rely on the raw size field for
+** sizing the ".bss" section.
+** This fixes some of the problems with linking gcc compiled objects
+** together with MSVC dito.
+**
+** Courtesy DJ Delorie for describing the COFF file format on 
+** http://www.delorie.com/djgpp/doc/coff/
+** The coff structures are fetched from Microsofts headers though.
+*/
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdarg.h>
+
+#include <windows.h>
+#include <winnt.h> /* Structure definitions for PE (COFF) */
+
+static int dump_edit(char *filename, int edit);
+static int v_printf(char *format, ...);
+
+
+char *progname;
+int verbouse = 0;
+
+int main(int argc, char **argv) 
+{
+    int findex = 1;
+    int edit = 0;
+    int ret;
+
+    progname = argv[0];
+    if (argc == 1) {
+	fprintf(stderr,"Format : %s [-e] [-v] <filename>\n", progname);
+	return 1;
+    }
+    for (findex = 1; 
+	 findex < argc && (*argv[findex] == '-' || *argv[findex] == '/');
+	 ++findex)
+	switch (argv[findex][1]) {
+	case 'e':
+	case 'E':
+	    edit = 1;
+	    break;
+	case 'v':
+	case 'V':
+	    verbouse = 1;
+	default:
+	    fprintf(stderr, "%s: unknown option %s\n", progname, argv[findex]);
+	    break;
+	}
+    if (findex == argc) {
+	fprintf(stderr,"%s: No filenames given.\n", progname);
+	return 1;
+    }
+    for(; findex < argc; ++findex)
+	if ((ret = dump_edit(argv[findex],edit)) != 0)
+	    return ret;
+    return 0;
+}
+
+int dump_edit(char *filename, int edit) 
+{
+    FILE *f = fopen(filename, (edit) ? "r+b" : "rb");
+    IMAGE_FILE_HEADER filhdr;
+    IMAGE_SECTION_HEADER scnhdr;
+    int i;
+
+    if (f == NULL) {
+	fprintf(stderr, "%s: cannot open %s.\n", progname, filename);
+	return 1;
+    }
+    
+    if (fread(&filhdr, sizeof(filhdr), 1, f) == 0) {
+	fprintf(stderr,"%s: Could not read COFF header from %s,"
+		" is this a PE (COFF) file?\n", progname, filename);
+	fclose(f);
+	return 1;
+    }
+    v_printf("File: %s\n", filename);
+    v_printf("Magic number: 0x%08x\n", filhdr.Machine);
+    v_printf("Number of sections: %d\n",filhdr.NumberOfSections);
+    
+    if (fseek(f, (long) filhdr.SizeOfOptionalHeader, SEEK_CUR) != 0) {
+	fprintf(stderr,"%s: Could not read COFF optional header from %s,"
+		" is this a PE (COFF) file?\n", progname, filename);
+	fclose(f);
+	return 1;
+    }
+    
+    for (i = 0; i < filhdr.NumberOfSections; ++i) {
+	if (fread(&scnhdr, sizeof(scnhdr), 1, f) == 0) {
+	    fprintf(stderr,"%s: Could not read section header from %s,"
+		    " is this a PE (COFF) file?\n", progname, filename);
+	    fclose(f);
+	    return 1;
+	}
+	v_printf("Section %s:\n", scnhdr.Name);
+	v_printf("Physical address: 0x%08x\n", scnhdr.Misc.PhysicalAddress);
+	v_printf("Size: 0x%08x\n", scnhdr.SizeOfRawData);
+	if (scnhdr.Misc.PhysicalAddress != 0 &&
+	    scnhdr.SizeOfRawData == 0) {
+	    printf("Section header %s in file %s will confuse MSC linker, "
+		   "virtual size is 0x%08x and raw size is 0\n",
+		   scnhdr.Name, filename, scnhdr.Misc.PhysicalAddress, 
+		   scnhdr.SizeOfRawData);
+	    if (edit) {
+		scnhdr.SizeOfRawData = scnhdr.Misc.PhysicalAddress;
+		scnhdr.Misc.PhysicalAddress = 0;
+		if (fseek(f, (long) -((long)sizeof(scnhdr)), SEEK_CUR) != 0 ||
+		    fwrite(&scnhdr, sizeof(scnhdr), 1, f) == 0) {
+		    fprintf(stderr,"%s: could not edit file %s.\n",
+			    progname, filename);
+		    fclose(f);
+		    return 1;
+		}
+		printf("Edited object, virtual size is now 0, and "
+		       "raw size is 0x%08x.\n", scnhdr.SizeOfRawData);
+	    } else {
+		printf("Specify option '-e' to correct the problem.\n");
+	    }
+	}
+    }
+    fclose(f);
+    return 0;
+}
+	    
+
+static int v_printf(char *format, ...)
+{
+    va_list ap;
+    int ret = 0;
+    if (verbouse) {
+	va_start(ap, format);
+	ret = vfprintf(stdout, format, ap);
+	va_end(ap);
+    }
+    return ret;
+}
+
diff --git a/erts/etc/win32/msys_tools/vc/emu_cc.sh b/erts/etc/win32/msys_tools/vc/emu_cc.sh
new file mode 100644
index 0000000000..71ed95d8c8
--- /dev/null
+++ b/erts/etc/win32/msys_tools/vc/emu_cc.sh
@@ -0,0 +1,95 @@
+#! /bin/sh
+# 
+# %CopyrightBegin%
+# 
+# Copyright Ericsson AB 2002-2009. All Rights Reserved.
+# 
+# The contents of this file are subject to the Erlang Public License,
+# Version 1.1, (the "License"); you may not use this file except in
+# compliance with the License. You should have received a copy of the
+# Erlang Public License along with this software. If not, it can be
+# retrieved online at http://www.erlang.org/.
+# 
+# Software distributed under the License is distributed on an "AS IS"
+# basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+# the License for the specific language governing rights and limitations
+# under the License.
+# 
+# %CopyrightEnd%
+# 
+if [ X"$CONFIG_SUBTYPE" = X"win64" ]; then
+    GCC="x86_64-w64-mingw32-gcc.exe"
+else 
+    GCC="gcc"
+fi
+TOOLDIR=$ERL_TOP/erts/etc/win32/msys_tools/vc
+COFFIX=$TOOLDIR/coffix
+WTOOLDIR0=`win2msys_path.sh "$TOOLDIR"`
+WTOOLDIR=`cmd //C echo $WTOOLDIR0`
+# Do primitive 'make'
+newer_exe=`find $TOOLDIR -newer $COFFIX.c -name coffix.exe -print`
+if [ -z $newer_exe ]; then
+    echo recompiling $COFFIX.exe
+    cl.exe -Fe${WTOOLDIR}/coffix.exe ${WTOOLDIR}/coffix.c
+    rm -f $COFFIX.obj coffix.obj $COFFIX.pdb coffix.pdb
+fi
+
+# Try to find out the output filename and remove it from command line
+CMD=""
+OUTFILE=""
+INFILE=""
+SKIP_COFFIX=false
+while test -n "$1" ; do
+    x="$1"
+    case "$x" in
+	-o/*)
+	    OUTFILE=`echo $x | sed 's,^-[Io]\(/.*\),\1,g'`;;
+	-o)
+	    shift
+	    OUTFILE=$1;;
+	-MM)
+	    SKIP_COFFIX=true
+	    CMD="$CMD \"$x\"";;
+	*.c)
+	    INFILE="$INFILE $x";
+	    CMD="$CMD \"$x\"";;
+	*)
+	    CMD="$CMD \"$x\"";;
+    esac
+    shift
+done
+if [ -z "$INFILE" ]; then
+    echo 'emu_cc.sh: please give an input filename for the compiler' >&2
+    exit 1
+fi    
+if [ -z "$OUTFILE" ]; then
+    OUTFILE=`echo $INFILE | sed 's,\.c$,.o,'`
+fi
+
+if [ $SKIP_COFFIX = false ]; then
+    n=`echo $INFILE | wc -w`;
+    if [ $n -gt 1 ]; then
+	echo "emu_cc.sh:Error, multiple sources, one object output.";
+	exit 1;
+    fi
+    TEMPFILE=/tmp/tmp_emu_cc$$.o
+    if [ "X$EMU_CC_SH_DEBUG_LOG" != "X" ]; then
+	echo "$GCC -o $TEMPFILE -D__WIN32__ -DWIN32 -DWINDOWS -fomit-frame-pointer $CMD" >> $EMU_CC_SH_DEBUG_LOG 2>&1
+    fi
+    eval $GCC -o $TEMPFILE -D__WIN32__ -DWIN32 -DWINDOWS -fomit-frame-pointer $CMD
+    RES=$?
+    if [ $RES = 0 ]; then
+	$COFFIX.exe -e `win2msys_path.sh $TEMPFILE`
+	RES=$?
+	if [ $RES = 0 ]; then
+	    cp $TEMPFILE $OUTFILE
+	else
+	    echo "emu_cc.sh: fatal: coffix failed!" >&2
+	fi
+    fi
+    rm -f $TEMPFILE
+    exit $RES
+else
+    eval $GCC -D__WIN32__ -DWIN32 -DWINDOWS -fomit-frame-pointer -fno-tree-copyrename $CMD 2>/dev/null
+    exit $?
+fi
diff --git a/erts/etc/win32/msys_tools/vc/ld.sh b/erts/etc/win32/msys_tools/vc/ld.sh
new file mode 100644
index 0000000000..9ed841f8fe
--- /dev/null
+++ b/erts/etc/win32/msys_tools/vc/ld.sh
@@ -0,0 +1,198 @@
+#! /bin/sh
+# set -x
+# 
+# %CopyrightBegin%
+# 
+# Copyright Ericsson AB 2002-2009. All Rights Reserved.
+# 
+# The contents of this file are subject to the Erlang Public License,
+# Version 1.1, (the "License"); you may not use this file except in
+# compliance with the License. You should have received a copy of the
+# Erlang Public License along with this software. If not, it can be
+# retrieved online at http://www.erlang.org/.
+# 
+# Software distributed under the License is distributed on an "AS IS"
+# basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+# the License for the specific language governing rights and limitations
+# under the License.
+# 
+# %CopyrightEnd%
+# 
+# Save the command line for debug outputs
+
+SAVE="$@"
+kernel_libs="kernel32.lib advapi32.lib"
+gdi_libs="gdi32.lib user32.lib comctl32.lib comdlg32.lib shell32.lib"
+DEFAULT_LIBRARIES="$kernel_libs $gdi_libs"
+
+CMD=""
+STDLIB=MSVCRT.LIB
+DEBUG_BUILD=false
+STDLIB_FORCED=false
+BUILD_DLL=false
+OUTPUT_FILENAME=""
+
+while test -n "$1" ; do
+    x="$1"
+    case "$x" in
+	-dll| -DLL)
+	    BUILD_DLL=true;; 
+	-L/*|-L.*)
+	    y=`echo $x | sed 's,^-L\(.*\),\1,g'`;
+	    MPATH=`msys2win_path.sh -m $y`;
+	    CMD="$CMD -libpath:\"$MPATH\"";; 
+	-lMSVCRT|-lmsvcrt)
+	    STDLIB_FORCED=true;
+	    STDLIB=MSVCRT.LIB;; 
+	-lMSVCRTD|-lmsvcrtd)
+	    STDLIB_FORCED=true;
+	    STDLIB=MSVCRTD.LIB;; 
+	-lLIBCMT|-llibcmt)
+	    STDLIB_FORCED=true;
+	    STDLIB=LIBCMT.LIB;; 
+	-lLIBCMTD|-llibcmtd)
+	    STDLIB_FORCED=true;
+	    STDLIB=LIBCMTD.LIB;; 
+	-lsocket)
+	    DEFAULT_LIBRARIES="$DEFAULT_LIBRARIES WS2_32.LIB IPHLPAPI.LIB";;
+	-l*)
+	    y=`echo $x | sed 's,^-l\(.*\),\1,g'`;
+	    MPATH=`msys2win_path.sh -m $y`;
+	    CMD="$CMD \"${MPATH}.lib\"";; 
+	-g)
+	    DEBUG_BUILD=true;;
+	-pdb:none|-incremental:no)
+	    ;;
+	-implib:*)
+	    y=`echo $x | sed 's,^-implib:\(.*\),\1,g'`;
+	    MPATH=`msys2win_path.sh -m $y`;
+	    CMD="$CMD -implib:\"${MPATH}\"";; 
+	-def:*)
+	    y=`echo $x | sed 's,^-def:\(.*\),\1,g'`;
+	    MPATH=`msys2win_path.sh -m $y`;
+	    CMD="$CMD -def:\"${MPATH}\"";; 
+	-o)
+	    shift
+	    MPATH=`msys2win_path.sh -m $1`;
+	    OUTPUT_FILENAME="$MPATH";;
+	-o/*)
+	    y=`echo $x | sed 's,^-[Io]\(/.*\),\1,g'`;
+	    MPATH=`msys2win_path.sh -m $y`;
+	    OUTPUT_FILENAME="$MPATH";;
+	/*)
+	    MPATH=`msys2win_path.sh -m $x`;
+	    CMD="$CMD \"$MPATH\"";; 
+	*)
+	    y=`echo $x | sed 's,",\\\",g'`;
+	    CMD="$CMD \"$y\"";;
+    esac
+    shift
+done
+if [ $DEBUG_BUILD = true ]; then
+    linktype="-debug -pdb:none"
+    if [ $STDLIB_FORCED = false ]; then
+	STDLIB=MSVCRTD.LIB
+    fi
+fi
+# Generate a PDB 
+linkadd_pdb=""
+case "$OUTPUT_FILENAME" in
+    *.exe|*.EXE)
+	    fn=`echo "$OUTPUT_FILENAME" | sed 's,[eE][xX][eE]$,,g'`;
+	    linkadd_pdb="-pdb:\"${fn}pdb\"";;
+    *.dll|*.DLL)
+	    fn=`echo "$OUTPUT_FILENAME" | sed 's,[dD][lL][lL]$,,g'`;
+	    linkadd_pdb="-pdb:\"${fn}pdb\"";;
+    "")
+	    linkadd_pdb="-pdb:\"a.pdb\"";;
+    *)
+	    linkadd_pdb="-pdb:\"${OUTPUT_FILENAME}.pdb\"";;
+esac
+	
+    linktype="-debug $linkadd_pdb"
+
+CHMOD_FILE=""
+
+if [ $BUILD_DLL = true ];then
+    case "$OUTPUT_FILENAME" in
+	*.exe|*.EXE)
+	    echo "Warning, output set to .exe when building DLL" >&2
+	    CHMOD_FILE="$OUTPUT_FILENAME";
+	    CMD="-dll -out:\"$OUTPUT_FILENAME\" $CMD";
+	    OUTPUTRES="${OUTPUT_FILENAME}\;2";
+	    MANIFEST="${OUTPUT_FILENAME}.manifest";;
+	*.dll|*.DLL)
+	    CMD="-dll -out:\"$OUTPUT_FILENAME\" $CMD";
+	    OUTPUTRES="${OUTPUT_FILENAME}\;2";
+	    MANIFEST="${OUTPUT_FILENAME}.manifest";;
+	"")
+	    CMD="-dll -out:\"a.dll\" $CMD";
+	    OUTPUTRES="a.dll\;2";
+	    MANIFEST="a.dll.manifest";;
+	*)
+	    CMD="-dll -out:\"${OUTPUT_FILENAME}.dll\" $CMD";
+	    OUTPUTRES="${OUTPUT_FILENAME}.dll\;2";
+	    MANIFEST="${OUTPUT_FILENAME}.dll.manifest";;
+    esac
+else
+    case "$OUTPUT_FILENAME" in
+	*.exe|*.EXE)
+	    CHMOD_FILE="$OUTPUT_FILENAME";
+	    CMD="-out:\"$OUTPUT_FILENAME\" $CMD";
+	    OUTPUTRES="${OUTPUT_FILENAME}\;1"
+	    MANIFEST="${OUTPUT_FILENAME}.manifest";;
+	*.dll|*.DLL)
+	    echo "Warning, output set to .dll when building EXE" >&2
+	    CMD="-out:\"$OUTPUT_FILENAME\" $CMD";
+	    OUTPUTRES="${OUTPUT_FILENAME}\;1";
+	    MANIFEST="${OUTPUT_FILENAME}.manifest";;
+	"")
+	    CHMOD_FILE="a.exe";
+	    CMD="-out:\"a.exe\" $CMD";
+	    OUTPUTRES="a.exe\;1";
+	    MANIFEST="a.exe.manifest";;
+	*)
+	    CMD="-out:\"${OUTPUT_FILENAME}.exe\" $CMD";
+	    OUTPUTRES="${OUTPUT_FILENAME}.exe\;1";
+	    MANIFEST="${OUTPUT_FILENAME}.exe.manifest";;
+    esac
+fi    
+	    
+p=$$
+CMD="$linktype -nologo -incremental:no $CMD $STDLIB $DEFAULT_LIBRARIES"
+if [ "X$LD_SH_DEBUG_LOG" != "X" ]; then
+    echo ld.sh "$SAVE" >>$LD_SH_DEBUG_LOG
+    echo link.exe $CMD >>$LD_SH_DEBUG_LOG
+fi
+eval link.exe "$CMD"  >/tmp/link.exe.${p}.1 2>/tmp/link.exe.${p}.2
+RES=$?
+
+CMANIFEST=`win2msys_path.sh $MANIFEST`
+if [ "$RES" = "0" -a -f "$CMANIFEST" ]; then
+    # Add stuff to manifest to turn off "virtualization"
+    sed -n -i '1h;1!H;${;g;s,<trustInfo.*</trustInfo>.,,g;p;}' $CMANIFEST 2>/dev/null
+    sed -i "s/<\/assembly>/ <ms_asmv2:trustInfo xmlns:ms_asmv2=\"urn:schemas-microsoft-com:asm.v2\">\n  <ms_asmv2:security>\n   <ms_asmv2:requestedPrivileges>\n    <ms_asmv2:requestedExecutionLevel level=\"AsInvoker\" uiAccess=\"false\"\/>\n   <\/ms_asmv2:requestedPrivileges>\n  <\/ms_asmv2:security>\n <\/ms_asmv2:trustInfo>\n<\/assembly>/" $CMANIFEST 2>/dev/null
+
+    eval mt.exe -nologo -manifest "$MANIFEST" -outputresource:"$OUTPUTRES" >>/tmp/link.exe.${p}.1 2>>/tmp/link.exe.${p}.2
+    RES=$?
+    if [ "$RES" != "0" ]; then
+	REMOVE=`echo "$OUTPUTRES" | sed 's,\\\;[12]$,,g'`
+	CREMOVE=`cygpath $REMOVE`
+	rm -f "$CREMOVE"
+    fi
+    rm -f "$CMANIFEST"
+fi
+
+# This works around some strange behaviour 
+# in cygwin 1.7 Beta on Windows 7 with samba drive.
+# Configure will think the compiler failed if test -x fails, 
+# which it might do as we might not be the owner of the
+# file.
+if [ '!' -z "$CHMOD_FILE" -a -s "$CHMOD_FILE" -a '!' -x "$CHMOD_FILE" ]; then
+    chmod +x $CHMOD_FILE
+fi
+    
+tail -n +2 /tmp/link.exe.${p}.2 >&2
+cat /tmp/link.exe.${p}.1
+rm -f /tmp/link.exe.${p}.2 /tmp/link.exe.${p}.1
+exit $RES
diff --git a/erts/etc/win32/msys_tools/vc/mc.sh b/erts/etc/win32/msys_tools/vc/mc.sh
new file mode 100644
index 0000000000..2993935582
--- /dev/null
+++ b/erts/etc/win32/msys_tools/vc/mc.sh
@@ -0,0 +1,87 @@
+#! /bin/sh
+# set -x
+# 
+# %CopyrightBegin%
+# 
+# Copyright Ericsson AB 2002-2009. All Rights Reserved.
+# 
+# The contents of this file are subject to the Erlang Public License,
+# Version 1.1, (the "License"); you may not use this file except in
+# compliance with the License. You should have received a copy of the
+# Erlang Public License along with this software. If not, it can be
+# retrieved online at http://www.erlang.org/.
+# 
+# Software distributed under the License is distributed on an "AS IS"
+# basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+# the License for the specific language governing rights and limitations
+# under the License.
+# 
+# %CopyrightEnd%
+# 
+# Save the command line for debug outputs
+SAVE="$@"
+CMD=""
+OUTPUT_DIRNAME=""
+
+# Find the correct mc.exe. This could be done by the configure script,
+# But as we seldom use the message compiler, it might as well be done here...
+MCC=""
+save_ifs=$IFS
+IFS=:
+for p in $PATH; do 
+    if [ -f $p/mc.exe ]; then 
+	if [ -n "`$p/mc.exe -? 2>&1 >/dev/null </dev/null \
+                 | grep -i \"message compiler\"`" ]; then 
+	    MCC=`echo "$p/mc.exe" | sed 's/ /\\\\ /g'`
+	fi
+    fi
+done
+IFS=$save_ifs
+
+if [ -z "$MCC" ]; then
+    echo 'mc.exe not found!' >&2
+    exit 1
+fi
+
+while test -n "$1" ; do
+    x="$1"
+    case "$x" in
+	-o)
+	    shift
+	    OUTPUT_DIRNAME="$1";;
+	-o/*)
+	    y=`echo $x | sed 's,^-[Io]\(/.*\),\1,g'`;
+	    OUTPUT_DIRNAME="$y";;
+	-I)
+	    shift
+	    MPATH=`msys2win_path.sh -m $1`;
+	    CMD="$CMD -I\"$MPATH\"";;
+	-I/*)
+	    y=`echo $x | sed 's,^-[Io]\(/.*\),\1,g'`;
+	    MPATH=`msys2win_path.sh -m $y`;
+	    CMD="$CMD -I\"$MPATH\"";;
+	*)
+	    MPATH=`msys2win_path.sh -m -a $x`;
+	    CMD="$CMD \"$MPATH\"";; 
+    esac
+    shift
+done
+p=$$
+if [ "X$MC_SH_DEBUG_LOG" != "X" ]; then
+    echo mc.sh "$SAVE" >>$MC_SH_DEBUG_LOG
+    echo mc.exe $CMD >>$MC_SH_DEBUG_LOG
+fi
+if [ -n "$OUTPUT_DIRNAME" ]; then
+    cd $OUTPUT_DIRNAME
+    RES=$?
+    if [ "$RES" != "0" ]; then
+	echo "mc.sh: Error: could not cd to $OUTPUT_DIRNAME">&2
+	exit $RES
+    fi
+fi
+eval $MCC "$CMD"  >/tmp/mc.exe.${p}.1 2>/tmp/mc.exe.${p}.2
+RES=$?
+tail +2 /tmp/mc.exe.${p}.2 >&2
+cat /tmp/mc.exe.${p}.1
+rm -f /tmp/mc.exe.${p}.2 /tmp/mc.exe.${p}.1
+exit $RES
diff --git a/erts/etc/win32/msys_tools/vc/rc.sh b/erts/etc/win32/msys_tools/vc/rc.sh
new file mode 100644
index 0000000000..069bca73a3
--- /dev/null
+++ b/erts/etc/win32/msys_tools/vc/rc.sh
@@ -0,0 +1,86 @@
+#! /bin/sh
+# set -x
+# 
+# %CopyrightBegin%
+# 
+# Copyright Ericsson AB 2002-2009. All Rights Reserved.
+# 
+# The contents of this file are subject to the Erlang Public License,
+# Version 1.1, (the "License"); you may not use this file except in
+# compliance with the License. You should have received a copy of the
+# Erlang Public License along with this software. If not, it can be
+# retrieved online at http://www.erlang.org/.
+# 
+# Software distributed under the License is distributed on an "AS IS"
+# basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+# the License for the specific language governing rights and limitations
+# under the License.
+# 
+# %CopyrightEnd%
+# 
+# Save the command line for debug outputs
+SAVE="$@"
+CMD=""
+OUTPUT_FILENAME=""
+
+# Find the correct rc.exe. This could be done by the configure script,
+# But as we seldom use the resource compiler, it might as well be done here...
+RCC=""
+save_ifs=$IFS
+IFS=:
+for p in $PATH; do 
+    if [ -f $p/rc.exe ]; then 
+	if [ -n "`$p/rc.exe -? 2>&1 | grep -i "resource compiler"`" ]; then
+	    RCC=`echo "$p/rc.exe" | sed 's/ /\\\\ /g'`
+	fi
+    fi
+done
+IFS=$save_ifs
+
+if [ -z "$RCC" ]; then
+    echo 'rc.exe not found!' >&2
+    exit 1
+fi
+
+while test -n "$1" ; do
+    x="$1"
+    case "$x" in
+	-o)
+	    shift
+	    MPATH=`msys2win_path.sh -m $1`;
+	    OUTPUT_FILENAME="$MPATH";;
+	-o/*)
+	    y=`echo $x | sed 's,^-[Io]\(/.*\),\1,g'`;
+	    MPATH=`msys2win_path.sh -m $y`;
+	    OUTPUT_FILENAME="$MPATH";;
+	-I)
+	    shift
+	    MPATH=`msys2win_path.sh -m $1`;
+	    CMD="$CMD -I\"$MPATH\"";;
+	-I/*)
+	    y=`echo $x | sed 's,^-[Io]\(/.*\),\1,g'`;
+	    MPATH=`msys2win_path.sh -m $y`;
+	    CMD="$CMD -I\"$MPATH\"";;
+	/*)
+	    MPATH=`msys2win_path.sh -m $x`;
+	    CMD="$CMD \"$MPATH\"";; 
+	*)
+	    y=`echo $x | sed 's,",\\\",g'`;
+	    CMD="$CMD \"$y\"";;
+    esac
+    shift
+done
+p=$$
+if [ -n "$OUTPUT_FILENAME" ]; then
+    CMD="-Fo$OUTPUT_FILENAME $CMD"
+fi
+if [ "X$RC_SH_DEBUG_LOG" != "X" ]; then
+    echo rc.sh "$SAVE" >>$RC_SH_DEBUG_LOG
+    echo rc.exe $CMD >>$RC_SH_DEBUG_LOG
+fi
+eval $RCC "$CMD"  >/tmp/rc.exe.${p}.1 2>/tmp/rc.exe.${p}.2
+RES=$?
+tail +2 /tmp/rc.exe.${p}.2 >&2
+cat /tmp/rc.exe.${p}.1
+rm -f /tmp/rc.exe.${p}.2 /tmp/rc.exe.${p}.1
+exit $RES
diff --git a/erts/etc/win32/msys_tools/win2msys_path.sh b/erts/etc/win32/msys_tools/win2msys_path.sh
new file mode 100644
index 0000000000..6558a15ecd
--- /dev/null
+++ b/erts/etc/win32/msys_tools/win2msys_path.sh
@@ -0,0 +1,38 @@
+#! /bin/bash

+if [ -z "$1" ]; then

+    echo "Usage: $0 <path>" >&2

+    exit 1;

+fi

+

+MSYS_PATH=`echo "$1" | sed 's,^\([a-zA-Z]\):\\\\,/\L\1/,;s,\\\\,/,g'`

+if [ -z "$MSYS_PATH" ]; then

+    echo "$0: Could not translate $1 to msys format" >&2

+    exit 2;

+fi

+

+DELBLANK=`echo "$MSYS_PATH" | sed 's, ,,g'`

+

+if [ "X$DELBLANK" != "X$MSYS_PATH" ]; then

+    if [ -d "$MSYS_PATH" ]; then

+	C1=`(cd "$MSYS_PATH" && cmd //C "for %i in (".") do @echo %~fsi")`

+	MSYS_PATH=`echo "$C1" | sed 's,^\([a-zA-Z]\):\\\\,/\L\1/,;s,\\\\,/,g'`

+    else

+	MSYS_DIR=`dirname "$MSYS_PATH"`

+	MSYS_FILE=`basename "$MSYS_PATH"`

+	if [ -d "$MSYS_DIR" ]; then

+	    	C1=`(cd "$MSYS_DIR" && cmd //C "for %i in (".") do @echo %~fsi")`	

+		BAT_FILE=/tmp/w$$.bat

+		# I simply cannot get the quoting right for this, 

+		# need an intermediate bat file

+		cat > $BAT_FILE <<EOF

+@echo off

+for %%i in ("$MSYS_FILE") do @echo %%~snxi

+EOF

+		C2=`(cd "$MSYS_DIR" && cmd //C $BAT_FILE)`

+		rm -f $BAT_FILE

+		MSYS_PATH=`echo "$C1/$C2" | sed 's,^\([a-zA-Z]\):\\\\,/\L\1/,;s,\\\\,/,g;s," ", ,g'`

+	fi

+    fi

+fi		

+echo $MSYS_PATH

+exit 0
\ No newline at end of file
diff --git a/erts/etc/win32/nsis/Makefile b/erts/etc/win32/nsis/Makefile
index ae2343b420..6a93c5153d 100644
--- a/erts/etc/win32/nsis/Makefile
+++ b/erts/etc/win32/nsis/Makefile
@@ -40,10 +40,29 @@ clean:
 include $(ERL_TOP)/make/otp_release_targets.mk
 
 TARGET_DIR = $(RELEASE_PATH)
-WTESTROOT=$(shell (cygpath -d $(RELEASE_PATH) 2>/dev/null || cygpath -w $(RELEASE_PATH)))
-WTARGET_DIR=$(shell (cygpath -d $(TARGET_DIR) 2>/dev/null || cygpath -d $(TARGET_DIR)))
+
+ifeq ($(MSYSTEM),MINGW32)
+
+  MAKENSISFLAGS = //V2
+  WTESTROOT=$(shell (msys2win_path.sh $(RELEASE_PATH)))
+  WTARGET_DIR=$(shell (msys2win_path.sh $(TARGET_DIR)))
+
+else
+
+  MAKENSISFLAGS = /V2
+  WTESTROOT=$(shell (cygpath -d $(RELEASE_PATH) 2>/dev/null || cygpath -w $(RELEASE_PATH)))
+  WTARGET_DIR=$(shell (cygpath -d $(TARGET_DIR) 2>/dev/null || cygpath -d $(TARGET_DIR)))
+
+endif
+
+ifeq ($(CONFIG_SUBTYPE),win64)
+  WINTYPE=win64
+else
+  WINTYPE=win32
+endif
 
 REDIST_FILE=$(shell (sh ./find_redist.sh || echo ""))
+REDIST_TARGET=$(shell (sh ./find_redist.sh -n || echo ""))
 REDIST_DLL_VERSION=$(shell (sh ./dll_version_helper.sh || echo ""))
 REDIST_DLL_NAME=$(shell (sh ./dll_version_helper.sh -n || echo ""))
 
@@ -65,16 +84,18 @@ release_spec:
 	  echo '!define ERTS_VERSION "$(VSN)"' >> $(VERSION_HEADER);\
 	  echo '!define TESTROOT "$(WTESTROOT)"' >> $(VERSION_HEADER);\
 	  echo '!define OUTFILEDIR "$(WTARGET_DIR)"' >> $(VERSION_HEADER);\
+	  echo '!define WINTYPE "$(WINTYPE)"' >> $(VERSION_HEADER);\
 	  if [ -f $(CUSTOM_MODERN) ];\
 	  then \
 		echo '!define HAVE_CUSTOM_MODERN 1' >> $(VERSION_HEADER); \
 	  fi;\
 	  if [ '!' -z "$(REDIST_FILE)" -a '!' -z "$(REDIST_DLL_VERSION)" ];\
 	  then \
-		cp $(REDIST_FILE) $(RELEASE_PATH)/vcredist_x86.exe;\
+		cp $(REDIST_FILE) $(RELEASE_PATH)/$(REDIST_TARGET);\
 		echo '!define HAVE_REDIST_FILE 1'  >> $(VERSION_HEADER); \
 		echo '!define REDIST_DLL_VERSION "$(REDIST_DLL_VERSION)"' >> $(VERSION_HEADER);\
 		echo '!define REDIST_DLL_NAME "$(REDIST_DLL_NAME)"' >> $(VERSION_HEADER);\
+		echo '!define REDIST_EXECUTABLE "$(REDIST_TARGET)"' >> $(VERSION_HEADER);\
 	  fi;\
 	  if [ -f $(RELEASE_PATH)/docs/doc/index.html ];\
 	  then \
diff --git a/erts/etc/win32/nsis/dll_version_helper.sh b/erts/etc/win32/nsis/dll_version_helper.sh
index eecd4a72b5..96e4532b7a 100755
--- a/erts/etc/win32/nsis/dll_version_helper.sh
+++ b/erts/etc/win32/nsis/dll_version_helper.sh
@@ -36,11 +36,11 @@ int main(void)
 }
 
 EOF
-cl /MD hello.c  > /dev/null 2>&1
+cl -MD hello.c  > /dev/null 2>&1
 if [ '!' -f hello.exe.manifest ]; then
     # Gah - VC 2010 changes the way it handles DLL's and manifests... Again...
     # need another way of getting the version
-    DLLNAME=`dumpbin.exe /imports hello.exe | egrep MSVCR.*dll`
+    DLLNAME=`dumpbin.exe -imports hello.exe | egrep MSVCR.*dll`
     DLLNAME=`echo $DLLNAME`
     cat > helper.c <<EOF
 #include <windows.h>
@@ -59,11 +59,7 @@ int main(void)
   char *vs_verinfo;
   unsigned int vs_ver_size;
   
-  struct LANGANDCODEPAGE {
-    WORD language;
-    WORD codepage;
-  } *translate;
-
+  WORD *translate;
   unsigned int tr_size;
   
   if (!(versize = GetFileVersionInfoSize(REQ_MODULE,&dummy))) {
@@ -79,10 +75,10 @@ int main(void)
     fprintf(stderr,"No translation info in %s!\n",REQ_MODULE);
     exit(3);
   }
-  n = tr_size/sizeof(translate);
+  n = tr_size/(2*sizeof(*translate));
   for(i=0; i < n; ++i) {
     sprintf(buff,"\\\\StringFileInfo\\\\%04x%04x\\\\FileVersion",
-	    translate[i].language,translate[i].codepage);
+	    translate[i*2],translate[i*2+1]);
     if (VerQueryValue(versinfo,buff,&vs_verinfo,&vs_ver_size)) {
       printf("%s\n",(char *) vs_verinfo);
       return 0;
@@ -92,7 +88,7 @@ int main(void)
   return 0;
 }
 EOF
-    cl /MD helper.c version.lib > /dev/null 2>&1
+    cl -MD helper.c version.lib > /dev/null 2>&1
     if [ '!' -f helper.exe ]; then
 	echo "Failed to build helper program." >&2
 	exit 1
diff --git a/erts/etc/win32/nsis/erlang20.nsi b/erts/etc/win32/nsis/erlang20.nsi
index 941e8e6f5d..fb0eff3867 100644
--- a/erts/etc/win32/nsis/erlang20.nsi
+++ b/erts/etc/win32/nsis/erlang20.nsi
@@ -31,17 +31,24 @@ Var STARTMENU_FOLDER
 !define MY_STARTMENUPAGE_REGISTRY_VALUENAME "Start Menu Folder"

 

 ;General

-	OutFile "${OUTFILEDIR}\otp_win32_${OTP_VERSION}.exe"

+	OutFile "${OUTFILEDIR}\otp_${WINTYPE}_${OTP_VERSION}.exe"

 

 ;Folder selection page

+!if ${WINTYPE} == "win64"

+  	InstallDir "$PROGRAMFILES64\erl${ERTS_VERSION}"

+!else

   	InstallDir "$PROGRAMFILES\erl${ERTS_VERSION}"

-  

+!endif  

 ;Remember install folder

   	InstallDirRegKey HKLM "SOFTWARE\Ericsson\Erlang\${ERTS_VERSION}" ""

   

 ; Set the default start menu folder

 

+!if ${WINTYPE} == "win64"

+	!define MUI_STARTMENUPAGE_DEFAULTFOLDER "${OTP_PRODUCT} ${OTP_VERSION} (x64)"

+!else

 	!define MUI_STARTMENUPAGE_DEFAULTFOLDER "${OTP_PRODUCT} ${OTP_VERSION}"

+!endif  

 

 ;--------------------------------

 ;Modern UI Configuration

@@ -98,12 +105,12 @@ Var STARTMENU_FOLDER
 Section "Microsoft redistributable libraries." SecMSRedist

 

   	SetOutPath "$INSTDIR"

-	File "${TESTROOT}\vcredist_x86.exe"

+	File "${TESTROOT}\${REDIST_EXECUTABLE}"

   

 ; Set back verbosity...

   	!verbose 1

 ; Run the setup program  

-  	ExecWait '"$INSTDIR\vcredist_x86.exe"'

+  	ExecWait '"$INSTDIR\${REDIST_EXECUTABLE}"'

 

   	!verbose 1

 SectionEnd ; MSRedist

diff --git a/erts/etc/win32/nsis/find_redist.sh b/erts/etc/win32/nsis/find_redist.sh
index bc4260ecba..7c449c9e4e 100755
--- a/erts/etc/win32/nsis/find_redist.sh
+++ b/erts/etc/win32/nsis/find_redist.sh
@@ -65,7 +65,6 @@ remove_path_element()
     else
 	echo "${ACC}/$1"
     fi
-
     #echo "ACC=$ACC" >&2
     #echo "1=$1" >&2
 }
@@ -89,20 +88,39 @@ add_path_element()
     echo "$PA"
 }
 
+
 CLPATH=`lookup_prog_in_path cl`
 
 if [ -z "$CLPATH" ]; then 
-    echo "Can not locate cl.exe and vcredist_x86.exe - OK if using mingw" >&2
+    echo "Can not locate cl.exe and vcredist_x86/x64.exe - OK if using mingw" >&2
     exit 1
 fi
 
-#echo $CLPATH
+# Look to see if it's 64bit
+XX=`remove_path_element cl "$CLPATH"`
+YY=`remove_path_element amd64 "$XX"`
+if [ "$YY" != "$XX" ]; then
+    AMD64DIR=true
+    VCREDIST=vcredist_x64
+    COMPONENTS="cl amd64 bin vc"
+else
+    AMD64DIR=false
+    VCREDIST=vcredist_x86
+    COMPONENTS="cl bin vc"
+fi
+
+if [ X"$1" = X"-n" ]; then
+    echo $VCREDIST.exe
+    exit 0
+fi
+
+# echo $CLPATH
 BPATH=$CLPATH
-for x in cl bin vc; do
-    #echo $x
+for x in $COMPONENTS; do
+    # echo $x
     NBPATH=`remove_path_element $x "$BPATH"`
     if [ "$NBPATH" = "$BPATH" ]; then
-	echo "Failed to locate vcredist_x86.exe because cl.exe was in an unexpected location" >&2
+	echo "Failed to locate $VCREDIST.exe because cl.exe was in an unexpected location" >&2
 	exit 2
     fi
     BPATH="$NBPATH"
@@ -115,7 +133,12 @@ fail=false
 if [ '!' -z "$RCPATH" ]; then 
     BPATH=$RCPATH
     allow_fail=false
-    for x in rc bin @ANY v6.0A v7.0A v7.1; do
+    if [ $AMD64DIR = true ]; then
+	COMPONENTS="rc x64 bin @ANY v6.0A v7.0A v7.1"
+    else
+	COMPONENTS="rc bin @ANY v6.0A v7.0A v7.1"
+    fi
+    for x in $COMPONENTS; do
 	if [ $x = @ANY ]; then
 	    allow_fail=true
 	else
@@ -131,6 +154,7 @@ if [ '!' -z "$RCPATH" ]; then
 	BPATH_LIST="$BPATH_LIST $BPATH"
     fi
 fi
+# echo "BPATH_LIST=$BPATH_LIST"
 
 # Frantic search through two roots with different 
 # version directories. We want to be very specific about the
@@ -143,7 +167,7 @@ for BP in $BPATH_LIST; do
 	BPATH=$BP
 	fail=false
 	allow_fail=false
-	for x in $verdir @ANY bootstrapper packages vcredist_x86 Redist VC @ALL vcredist_x86.exe; do
+	for x in $verdir @ANY bootstrapper packages $VCREDIST Redist VC @ALL $VCREDIST.exe; do
 	    #echo "x=$x"
 	    #echo "BPATH=$BPATH"
 	    #echo "allow_fail=$allow_fail"
@@ -170,18 +194,18 @@ for BP in $BPATH_LIST; do
     fi
 done
 
-# shortcut for locating vcredist_x86.exe is to put it into $ERL_TOP
-if [ -f $ERL_TOP/vcredist_x86.exe ]; then
-    echo $ERL_TOP/vcredist_x86.exe
+# shortcut for locating $VCREDIST.exe is to put it into $ERL_TOP
+if [ -f $ERL_TOP/$VCREDIST.exe ]; then
+    echo $ERL_TOP/$VCREDIST.exe
     exit 0
 fi
 
 # or $ERL_TOP/.. to share across multiple builds
-if [ -f $ERL_TOP/../vcredist_x86.exe ]; then
-    echo $ERL_TOP/../vcredist_x86.exe
+if [ -f $ERL_TOP/../$VCREDIST.exe ]; then
+    echo $ERL_TOP/../$VCREDIST.exe
     exit 0
 fi
 
-echo "Failed to locate vcredist_x86.exe because directory structure was unexpected" >&2
+echo "Failed to locate $VCREDIST.exe because directory structure was unexpected" >&2
 exit 3
 
diff --git a/erts/etc/win32/win_erlexec.c b/erts/etc/win32/win_erlexec.c
index 0eed8e28b9..5bb8ed6c6c 100644
--- a/erts/etc/win32/win_erlexec.c
+++ b/erts/etc/win32/win_erlexec.c
@@ -30,6 +30,9 @@
 #include <winuser.h>
 #include <wincon.h>
 #include <process.h>
+#ifdef HAVE_CONFIG_H
+#  include "config.h"
+#endif
 #include "sys.h"
 #include "erl_driver.h"