diff --git a/common/autoconf/basics.m4 b/common/autoconf/basics.m4
index e170e5ef82e5dc7b8c442d1b7338b83f84e9ebce..6f3471df4af64b6e0f137751bf65a78c0857848b 100644
--- a/common/autoconf/basics.m4
+++ b/common/autoconf/basics.m4
@@ -377,7 +377,6 @@ AC_DEFUN_ONCE([BASIC_SETUP_FUNDAMENTAL_TOOLS],
   BASIC_REQUIRE_PROGS(CMP, cmp)
   BASIC_REQUIRE_PROGS(COMM, comm)
   BASIC_REQUIRE_PROGS(CP, cp)
-  BASIC_REQUIRE_PROGS(CPIO, cpio)
   BASIC_REQUIRE_PROGS(CUT, cut)
   BASIC_REQUIRE_PROGS(DATE, date)
   BASIC_REQUIRE_PROGS(DIFF, [gdiff diff])
@@ -427,6 +426,7 @@ AC_DEFUN_ONCE([BASIC_SETUP_FUNDAMENTAL_TOOLS],
   BASIC_PATH_PROGS(READLINK, [greadlink readlink])
   BASIC_PATH_PROGS(DF, df)
   BASIC_PATH_PROGS(SETFILE, SetFile)
+  BASIC_PATH_PROGS(CPIO, [cpio bsdcpio])
 ])
 
 # Setup basic configuration paths, and platform-specific stuff related to PATHs.
@@ -859,7 +859,7 @@ AC_DEFUN([BASIC_CHECK_DIR_ON_LOCAL_DISK],
 # not be the case in cygwin in certain conditions.
 AC_DEFUN_ONCE([BASIC_CHECK_SRC_PERMS],
 [
-  if test x"$OPENJDK_BUILD_OS" = xwindows; then
+  if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.cygwin"; then
     file_to_test="$SRC_ROOT/LICENSE"
     if test `$STAT -c '%a' "$file_to_test"` -lt 400; then
       AC_MSG_ERROR([Bad file permissions on src files. This is usually caused by cloning the repositories with a non cygwin hg in a directory not created in cygwin.])
diff --git a/common/autoconf/basics_windows.m4 b/common/autoconf/basics_windows.m4
index 04e6a570507da05fa3eee6d8564faae8f0a22596..94807a633adeb3b69badd8811ba04bacfed9b07d 100644
--- a/common/autoconf/basics_windows.m4
+++ b/common/autoconf/basics_windows.m4
@@ -266,6 +266,14 @@ AC_DEFUN([BASIC_FIXUP_EXECUTABLE_MSYS],
     BASIC_WINDOWS_REWRITE_AS_UNIX_PATH(new_path)
 
     new_path=`$WHICH "$new_path" 2> /dev/null`
+    # bat and cmd files are not always considered executable in MSYS causing which
+    # to not find them
+    if test "x$new_path" = x \
+        && test "x`$ECHO \"$path\" | $GREP -i -e \"\\.bat$\" -e \"\\.cmd$\"`" != x \
+        && test "x`$LS \"$path\" 2>/dev/null`" != x; then
+      new_path="$path"
+      BASIC_WINDOWS_REWRITE_AS_UNIX_PATH(new_path)
+    fi
 
     if test "x$new_path" = x; then
       # It's still not found. Now this is an unrecoverable error.
diff --git a/common/autoconf/generated-configure.sh b/common/autoconf/generated-configure.sh
index fac43666ff4c3de7bf70b23255209cc5987591b0..f436df932c14134262828b15e67d18253ecd88c6 100644
--- a/common/autoconf/generated-configure.sh
+++ b/common/autoconf/generated-configure.sh
@@ -907,12 +907,14 @@ OPENJDK_TARGET_CPU_ENDIAN
 OPENJDK_TARGET_CPU_BITS
 OPENJDK_TARGET_CPU_ARCH
 OPENJDK_TARGET_CPU
+OPENJDK_TARGET_OS_ENV
 OPENJDK_TARGET_OS_API
 OPENJDK_TARGET_OS
 OPENJDK_BUILD_CPU_ENDIAN
 OPENJDK_BUILD_CPU_BITS
 OPENJDK_BUILD_CPU_ARCH
 OPENJDK_BUILD_CPU
+OPENJDK_BUILD_OS_ENV
 OPENJDK_BUILD_OS_API
 OPENJDK_BUILD_OS
 OPENJDK_BUILD_AUTOCONF_NAME
@@ -929,6 +931,7 @@ build_os
 build_vendor
 build_cpu
 build
+CPIO
 SETFILE
 DF
 READLINK
@@ -967,7 +970,6 @@ DIRNAME
 DIFF
 DATE
 CUT
-CPIO
 CP
 COMM
 CMP
@@ -1105,7 +1107,6 @@ CHMOD
 CMP
 COMM
 CP
-CPIO
 CUT
 DATE
 DIFF
@@ -1144,6 +1145,7 @@ CYGPATH
 READLINK
 DF
 SETFILE
+CPIO
 UNZIP
 ZIP
 LDD
@@ -1957,7 +1959,6 @@ Some influential environment variables:
   CMP         Override default value for CMP
   COMM        Override default value for COMM
   CP          Override default value for CP
-  CPIO        Override default value for CPIO
   CUT         Override default value for CUT
   DATE        Override default value for DATE
   DIFF        Override default value for DIFF
@@ -1996,6 +1997,7 @@ Some influential environment variables:
   READLINK    Override default value for READLINK
   DF          Override default value for DF
   SETFILE     Override default value for SETFILE
+  CPIO        Override default value for CPIO
   UNZIP       Override default value for UNZIP
   ZIP         Override default value for ZIP
   LDD         Override default value for LDD
@@ -4235,7 +4237,7 @@ TOOLCHAIN_DESCRIPTION_xlc="IBM XL C/C++"
 #CUSTOM_AUTOCONF_INCLUDE
 
 # Do not change or remove the following line, it is needed for consistency checks:
-DATE_WHEN_GENERATED=1523864865
+DATE_WHEN_GENERATED=1523982801
 
 ###############################################################################
 #
@@ -5637,199 +5639,6 @@ $as_echo "$tool_specified" >&6; }
 
 
 
-  # Publish this variable in the help.
-
-
-  if test "x$CPIO" = x; then
-    # The variable is not set by user, try to locate tool using the code snippet
-    for ac_prog in cpio
-do
-  # Extract the first word of "$ac_prog", so it can be a program name with args.
-set dummy $ac_prog; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_path_CPIO+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  case $CPIO in
-  [\\/]* | ?:[\\/]*)
-  ac_cv_path_CPIO="$CPIO" # Let the user override the test with a path.
-  ;;
-  *)
-  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
-  IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
-    for ac_exec_ext in '' $ac_executable_extensions; do
-  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
-    ac_cv_path_CPIO="$as_dir/$ac_word$ac_exec_ext"
-    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
-    break 2
-  fi
-done
-  done
-IFS=$as_save_IFS
-
-  ;;
-esac
-fi
-CPIO=$ac_cv_path_CPIO
-if test -n "$CPIO"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CPIO" >&5
-$as_echo "$CPIO" >&6; }
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
-
-  test -n "$CPIO" && break
-done
-
-  else
-    # The variable is set, but is it from the command line or the environment?
-
-    # Try to remove the string !CPIO! from our list.
-    try_remove_var=${CONFIGURE_OVERRIDDEN_VARIABLES//!CPIO!/}
-    if test "x$try_remove_var" = "x$CONFIGURE_OVERRIDDEN_VARIABLES"; then
-      # If it failed, the variable was not from the command line. Ignore it,
-      # but warn the user (except for BASH, which is always set by the calling BASH).
-      if test "xCPIO" != xBASH; then
-        { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: Ignoring value of CPIO from the environment. Use command line variables instead." >&5
-$as_echo "$as_me: WARNING: Ignoring value of CPIO from the environment. Use command line variables instead." >&2;}
-      fi
-      # Try to locate tool using the code snippet
-      for ac_prog in cpio
-do
-  # Extract the first word of "$ac_prog", so it can be a program name with args.
-set dummy $ac_prog; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_path_CPIO+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  case $CPIO in
-  [\\/]* | ?:[\\/]*)
-  ac_cv_path_CPIO="$CPIO" # Let the user override the test with a path.
-  ;;
-  *)
-  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
-  IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
-    for ac_exec_ext in '' $ac_executable_extensions; do
-  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
-    ac_cv_path_CPIO="$as_dir/$ac_word$ac_exec_ext"
-    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
-    break 2
-  fi
-done
-  done
-IFS=$as_save_IFS
-
-  ;;
-esac
-fi
-CPIO=$ac_cv_path_CPIO
-if test -n "$CPIO"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CPIO" >&5
-$as_echo "$CPIO" >&6; }
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
-
-  test -n "$CPIO" && break
-done
-
-    else
-      # If it succeeded, then it was overridden by the user. We will use it
-      # for the tool.
-
-      # First remove it from the list of overridden variables, so we can test
-      # for unknown variables in the end.
-      CONFIGURE_OVERRIDDEN_VARIABLES="$try_remove_var"
-
-      # Check if the provided tool contains a complete path.
-      tool_specified="$CPIO"
-      tool_basename="${tool_specified##*/}"
-      if test "x$tool_basename" = "x$tool_specified"; then
-        # A command without a complete path is provided, search $PATH.
-        { $as_echo "$as_me:${as_lineno-$LINENO}: Will search for user supplied tool CPIO=$tool_basename" >&5
-$as_echo "$as_me: Will search for user supplied tool CPIO=$tool_basename" >&6;}
-        # Extract the first word of "$tool_basename", so it can be a program name with args.
-set dummy $tool_basename; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_path_CPIO+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  case $CPIO in
-  [\\/]* | ?:[\\/]*)
-  ac_cv_path_CPIO="$CPIO" # Let the user override the test with a path.
-  ;;
-  *)
-  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
-  IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
-    for ac_exec_ext in '' $ac_executable_extensions; do
-  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
-    ac_cv_path_CPIO="$as_dir/$ac_word$ac_exec_ext"
-    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
-    break 2
-  fi
-done
-  done
-IFS=$as_save_IFS
-
-  ;;
-esac
-fi
-CPIO=$ac_cv_path_CPIO
-if test -n "$CPIO"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CPIO" >&5
-$as_echo "$CPIO" >&6; }
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
-
-        if test "x$CPIO" = x; then
-          as_fn_error $? "User supplied tool $tool_basename could not be found" "$LINENO" 5
-        fi
-      else
-        # Otherwise we believe it is a complete path. Use it as it is.
-        { $as_echo "$as_me:${as_lineno-$LINENO}: Will use user supplied tool CPIO=$tool_specified" >&5
-$as_echo "$as_me: Will use user supplied tool CPIO=$tool_specified" >&6;}
-        { $as_echo "$as_me:${as_lineno-$LINENO}: checking for CPIO" >&5
-$as_echo_n "checking for CPIO... " >&6; }
-        if test ! -x "$tool_specified"; then
-          { $as_echo "$as_me:${as_lineno-$LINENO}: result: not found" >&5
-$as_echo "not found" >&6; }
-          as_fn_error $? "User supplied tool CPIO=$tool_specified does not exist or is not executable" "$LINENO" 5
-        fi
-        { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tool_specified" >&5
-$as_echo "$tool_specified" >&6; }
-      fi
-    fi
-  fi
-
-
-
-  if test "x$CPIO" = x; then
-    as_fn_error $? "Could not find required tool for CPIO" "$LINENO" 5
-  fi
-
-
-
-
-
   # Publish this variable in the help.
 
 
@@ -13302,6 +13111,192 @@ $as_echo "$tool_specified" >&6; }
 
 
 
+  # Publish this variable in the help.
+
+
+  if test "x$CPIO" = x; then
+    # The variable is not set by user, try to locate tool using the code snippet
+    for ac_prog in cpio bsdcpio
+do
+  # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_path_CPIO+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  case $CPIO in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_CPIO="$CPIO" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_path_CPIO="$as_dir/$ac_word$ac_exec_ext"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  ;;
+esac
+fi
+CPIO=$ac_cv_path_CPIO
+if test -n "$CPIO"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CPIO" >&5
+$as_echo "$CPIO" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  test -n "$CPIO" && break
+done
+
+  else
+    # The variable is set, but is it from the command line or the environment?
+
+    # Try to remove the string !CPIO! from our list.
+    try_remove_var=${CONFIGURE_OVERRIDDEN_VARIABLES//!CPIO!/}
+    if test "x$try_remove_var" = "x$CONFIGURE_OVERRIDDEN_VARIABLES"; then
+      # If it failed, the variable was not from the command line. Ignore it,
+      # but warn the user (except for BASH, which is always set by the calling BASH).
+      if test "xCPIO" != xBASH; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: Ignoring value of CPIO from the environment. Use command line variables instead." >&5
+$as_echo "$as_me: WARNING: Ignoring value of CPIO from the environment. Use command line variables instead." >&2;}
+      fi
+      # Try to locate tool using the code snippet
+      for ac_prog in cpio bsdcpio
+do
+  # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_path_CPIO+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  case $CPIO in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_CPIO="$CPIO" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_path_CPIO="$as_dir/$ac_word$ac_exec_ext"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  ;;
+esac
+fi
+CPIO=$ac_cv_path_CPIO
+if test -n "$CPIO"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CPIO" >&5
+$as_echo "$CPIO" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  test -n "$CPIO" && break
+done
+
+    else
+      # If it succeeded, then it was overridden by the user. We will use it
+      # for the tool.
+
+      # First remove it from the list of overridden variables, so we can test
+      # for unknown variables in the end.
+      CONFIGURE_OVERRIDDEN_VARIABLES="$try_remove_var"
+
+      # Check if the provided tool contains a complete path.
+      tool_specified="$CPIO"
+      tool_basename="${tool_specified##*/}"
+      if test "x$tool_basename" = "x$tool_specified"; then
+        # A command without a complete path is provided, search $PATH.
+        { $as_echo "$as_me:${as_lineno-$LINENO}: Will search for user supplied tool CPIO=$tool_basename" >&5
+$as_echo "$as_me: Will search for user supplied tool CPIO=$tool_basename" >&6;}
+        # Extract the first word of "$tool_basename", so it can be a program name with args.
+set dummy $tool_basename; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_path_CPIO+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  case $CPIO in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_CPIO="$CPIO" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_path_CPIO="$as_dir/$ac_word$ac_exec_ext"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  ;;
+esac
+fi
+CPIO=$ac_cv_path_CPIO
+if test -n "$CPIO"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CPIO" >&5
+$as_echo "$CPIO" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+        if test "x$CPIO" = x; then
+          as_fn_error $? "User supplied tool $tool_basename could not be found" "$LINENO" 5
+        fi
+      else
+        # Otherwise we believe it is a complete path. Use it as it is.
+        { $as_echo "$as_me:${as_lineno-$LINENO}: Will use user supplied tool CPIO=$tool_specified" >&5
+$as_echo "$as_me: Will use user supplied tool CPIO=$tool_specified" >&6;}
+        { $as_echo "$as_me:${as_lineno-$LINENO}: checking for CPIO" >&5
+$as_echo_n "checking for CPIO... " >&6; }
+        if test ! -x "$tool_specified"; then
+          { $as_echo "$as_me:${as_lineno-$LINENO}: result: not found" >&5
+$as_echo "not found" >&6; }
+          as_fn_error $? "User supplied tool CPIO=$tool_specified does not exist or is not executable" "$LINENO" 5
+        fi
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tool_specified" >&5
+$as_echo "$tool_specified" >&6; }
+      fi
+    fi
+  fi
+
+
+
+
 # Now we can determine OpenJDK build and target platforms. This is required to
 # have early on.
 # Make sure we can run config.sub.
@@ -13566,6 +13561,7 @@ test -n "$target_alias" &&
 
 
 
+
   { $as_echo "$as_me:${as_lineno-$LINENO}: checking openjdk-build os-cpu" >&5
 $as_echo_n "checking openjdk-build os-cpu... " >&6; }
   { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OPENJDK_BUILD_OS-$OPENJDK_BUILD_CPU" >&5
@@ -13703,6 +13699,7 @@ $as_echo "$OPENJDK_BUILD_OS-$OPENJDK_BUILD_CPU" >&6; }
 
 
 
+
   { $as_echo "$as_me:${as_lineno-$LINENO}: checking openjdk-target os-cpu" >&5
 $as_echo_n "checking openjdk-target os-cpu... " >&6; }
   { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OPENJDK_TARGET_OS-$OPENJDK_TARGET_CPU" >&5
@@ -15400,6 +15397,23 @@ $as_echo "$as_me: Neither \"$new_path\" nor \"$new_path.exe/cmd\" can be found"
 
 
     new_path=`$WHICH "$new_path" 2> /dev/null`
+    # bat and cmd files are not always considered executable in MSYS causing which
+    # to not find them
+    if test "x$new_path" = x \
+        && test "x`$ECHO \"$path\" | $GREP -i -e \"\\.bat$\" -e \"\\.cmd$\"`" != x \
+        && test "x`$LS \"$path\" 2>/dev/null`" != x; then
+      new_path="$path"
+
+  windows_path="$new_path"
+  if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.cygwin"; then
+    unix_path=`$CYGPATH -u "$windows_path"`
+    new_path="$unix_path"
+  elif test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.msys"; then
+    unix_path=`$ECHO "$windows_path" | $SED -e 's,^\\(.\\):,/\\1,g' -e 's,\\\\,/,g'`
+    new_path="$unix_path"
+  fi
+
+    fi
 
     if test "x$new_path" = x; then
       # It's still not found. Now this is an unrecoverable error.
@@ -15756,6 +15770,23 @@ $as_echo "$as_me: Neither \"$new_path\" nor \"$new_path.exe/cmd\" can be found"
 
 
     new_path=`$WHICH "$new_path" 2> /dev/null`
+    # bat and cmd files are not always considered executable in MSYS causing which
+    # to not find them
+    if test "x$new_path" = x \
+        && test "x`$ECHO \"$path\" | $GREP -i -e \"\\.bat$\" -e \"\\.cmd$\"`" != x \
+        && test "x`$LS \"$path\" 2>/dev/null`" != x; then
+      new_path="$path"
+
+  windows_path="$new_path"
+  if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.cygwin"; then
+    unix_path=`$CYGPATH -u "$windows_path"`
+    new_path="$unix_path"
+  elif test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.msys"; then
+    unix_path=`$ECHO "$windows_path" | $SED -e 's,^\\(.\\):,/\\1,g' -e 's,\\\\,/,g'`
+    new_path="$unix_path"
+  fi
+
+    fi
 
     if test "x$new_path" = x; then
       # It's still not found. Now this is an unrecoverable error.
@@ -16109,6 +16140,23 @@ $as_echo "$as_me: Neither \"$new_path\" nor \"$new_path.exe/cmd\" can be found"
 
 
     new_path=`$WHICH "$new_path" 2> /dev/null`
+    # bat and cmd files are not always considered executable in MSYS causing which
+    # to not find them
+    if test "x$new_path" = x \
+        && test "x`$ECHO \"$path\" | $GREP -i -e \"\\.bat$\" -e \"\\.cmd$\"`" != x \
+        && test "x`$LS \"$path\" 2>/dev/null`" != x; then
+      new_path="$path"
+
+  windows_path="$new_path"
+  if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.cygwin"; then
+    unix_path=`$CYGPATH -u "$windows_path"`
+    new_path="$unix_path"
+  elif test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.msys"; then
+    unix_path=`$ECHO "$windows_path" | $SED -e 's,^\\(.\\):,/\\1,g' -e 's,\\\\,/,g'`
+    new_path="$unix_path"
+  fi
+
+    fi
 
     if test "x$new_path" = x; then
       # It's still not found. Now this is an unrecoverable error.
@@ -16467,6 +16515,23 @@ $as_echo "$as_me: Neither \"$new_path\" nor \"$new_path.exe/cmd\" can be found"
 
 
     new_path=`$WHICH "$new_path" 2> /dev/null`
+    # bat and cmd files are not always considered executable in MSYS causing which
+    # to not find them
+    if test "x$new_path" = x \
+        && test "x`$ECHO \"$path\" | $GREP -i -e \"\\.bat$\" -e \"\\.cmd$\"`" != x \
+        && test "x`$LS \"$path\" 2>/dev/null`" != x; then
+      new_path="$path"
+
+  windows_path="$new_path"
+  if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.cygwin"; then
+    unix_path=`$CYGPATH -u "$windows_path"`
+    new_path="$unix_path"
+  elif test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.msys"; then
+    unix_path=`$ECHO "$windows_path" | $SED -e 's,^\\(.\\):,/\\1,g' -e 's,\\\\,/,g'`
+    new_path="$unix_path"
+  fi
+
+    fi
 
     if test "x$new_path" = x; then
       # It's still not found. Now this is an unrecoverable error.
@@ -16819,6 +16884,23 @@ $as_echo "$as_me: Neither \"$new_path\" nor \"$new_path.exe/cmd\" can be found"
 
 
     new_path=`$WHICH "$new_path" 2> /dev/null`
+    # bat and cmd files are not always considered executable in MSYS causing which
+    # to not find them
+    if test "x$new_path" = x \
+        && test "x`$ECHO \"$path\" | $GREP -i -e \"\\.bat$\" -e \"\\.cmd$\"`" != x \
+        && test "x`$LS \"$path\" 2>/dev/null`" != x; then
+      new_path="$path"
+
+  windows_path="$new_path"
+  if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.cygwin"; then
+    unix_path=`$CYGPATH -u "$windows_path"`
+    new_path="$unix_path"
+  elif test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.msys"; then
+    unix_path=`$ECHO "$windows_path" | $SED -e 's,^\\(.\\):,/\\1,g' -e 's,\\\\,/,g'`
+    new_path="$unix_path"
+  fi
+
+    fi
 
     if test "x$new_path" = x; then
       # It's still not found. Now this is an unrecoverable error.
@@ -25666,6 +25748,23 @@ $as_echo "$as_me: Neither \"$new_path\" nor \"$new_path.exe/cmd\" can be found"
 
 
     new_path=`$WHICH "$new_path" 2> /dev/null`
+    # bat and cmd files are not always considered executable in MSYS causing which
+    # to not find them
+    if test "x$new_path" = x \
+        && test "x`$ECHO \"$path\" | $GREP -i -e \"\\.bat$\" -e \"\\.cmd$\"`" != x \
+        && test "x`$LS \"$path\" 2>/dev/null`" != x; then
+      new_path="$path"
+
+  windows_path="$new_path"
+  if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.cygwin"; then
+    unix_path=`$CYGPATH -u "$windows_path"`
+    new_path="$unix_path"
+  elif test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.msys"; then
+    unix_path=`$ECHO "$windows_path" | $SED -e 's,^\\(.\\):,/\\1,g' -e 's,\\\\,/,g'`
+    new_path="$unix_path"
+  fi
+
+    fi
 
     if test "x$new_path" = x; then
       # It's still not found. Now this is an unrecoverable error.
@@ -26436,6 +26535,23 @@ $as_echo "$as_me: Neither \"$new_path\" nor \"$new_path.exe/cmd\" can be found"
 
 
     new_path=`$WHICH "$new_path" 2> /dev/null`
+    # bat and cmd files are not always considered executable in MSYS causing which
+    # to not find them
+    if test "x$new_path" = x \
+        && test "x`$ECHO \"$path\" | $GREP -i -e \"\\.bat$\" -e \"\\.cmd$\"`" != x \
+        && test "x`$LS \"$path\" 2>/dev/null`" != x; then
+      new_path="$path"
+
+  windows_path="$new_path"
+  if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.cygwin"; then
+    unix_path=`$CYGPATH -u "$windows_path"`
+    new_path="$unix_path"
+  elif test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.msys"; then
+    unix_path=`$ECHO "$windows_path" | $SED -e 's,^\\(.\\):,/\\1,g' -e 's,\\\\,/,g'`
+    new_path="$unix_path"
+  fi
+
+    fi
 
     if test "x$new_path" = x; then
       # It's still not found. Now this is an unrecoverable error.
@@ -26876,6 +26992,23 @@ $as_echo "$as_me: Neither \"$new_path\" nor \"$new_path.exe/cmd\" can be found"
 
 
     new_path=`$WHICH "$new_path" 2> /dev/null`
+    # bat and cmd files are not always considered executable in MSYS causing which
+    # to not find them
+    if test "x$new_path" = x \
+        && test "x`$ECHO \"$path\" | $GREP -i -e \"\\.bat$\" -e \"\\.cmd$\"`" != x \
+        && test "x`$LS \"$path\" 2>/dev/null`" != x; then
+      new_path="$path"
+
+  windows_path="$new_path"
+  if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.cygwin"; then
+    unix_path=`$CYGPATH -u "$windows_path"`
+    new_path="$unix_path"
+  elif test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.msys"; then
+    unix_path=`$ECHO "$windows_path" | $SED -e 's,^\\(.\\):,/\\1,g' -e 's,\\\\,/,g'`
+    new_path="$unix_path"
+  fi
+
+    fi
 
     if test "x$new_path" = x; then
       # It's still not found. Now this is an unrecoverable error.
@@ -28144,6 +28277,23 @@ $as_echo "$as_me: Neither \"$new_path\" nor \"$new_path.exe/cmd\" can be found"
 
 
     new_path=`$WHICH "$new_path" 2> /dev/null`
+    # bat and cmd files are not always considered executable in MSYS causing which
+    # to not find them
+    if test "x$new_path" = x \
+        && test "x`$ECHO \"$path\" | $GREP -i -e \"\\.bat$\" -e \"\\.cmd$\"`" != x \
+        && test "x`$LS \"$path\" 2>/dev/null`" != x; then
+      new_path="$path"
+
+  windows_path="$new_path"
+  if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.cygwin"; then
+    unix_path=`$CYGPATH -u "$windows_path"`
+    new_path="$unix_path"
+  elif test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.msys"; then
+    unix_path=`$ECHO "$windows_path" | $SED -e 's,^\\(.\\):,/\\1,g' -e 's,\\\\,/,g'`
+    new_path="$unix_path"
+  fi
+
+    fi
 
     if test "x$new_path" = x; then
       # It's still not found. Now this is an unrecoverable error.
@@ -28584,6 +28734,23 @@ $as_echo "$as_me: Neither \"$new_path\" nor \"$new_path.exe/cmd\" can be found"
 
 
     new_path=`$WHICH "$new_path" 2> /dev/null`
+    # bat and cmd files are not always considered executable in MSYS causing which
+    # to not find them
+    if test "x$new_path" = x \
+        && test "x`$ECHO \"$path\" | $GREP -i -e \"\\.bat$\" -e \"\\.cmd$\"`" != x \
+        && test "x`$LS \"$path\" 2>/dev/null`" != x; then
+      new_path="$path"
+
+  windows_path="$new_path"
+  if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.cygwin"; then
+    unix_path=`$CYGPATH -u "$windows_path"`
+    new_path="$unix_path"
+  elif test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.msys"; then
+    unix_path=`$ECHO "$windows_path" | $SED -e 's,^\\(.\\):,/\\1,g' -e 's,\\\\,/,g'`
+    new_path="$unix_path"
+  fi
+
+    fi
 
     if test "x$new_path" = x; then
       # It's still not found. Now this is an unrecoverable error.
@@ -29457,6 +29624,23 @@ $as_echo "$as_me: Neither \"$new_path\" nor \"$new_path.exe/cmd\" can be found"
 
 
     new_path=`$WHICH "$new_path" 2> /dev/null`
+    # bat and cmd files are not always considered executable in MSYS causing which
+    # to not find them
+    if test "x$new_path" = x \
+        && test "x`$ECHO \"$path\" | $GREP -i -e \"\\.bat$\" -e \"\\.cmd$\"`" != x \
+        && test "x`$LS \"$path\" 2>/dev/null`" != x; then
+      new_path="$path"
+
+  windows_path="$new_path"
+  if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.cygwin"; then
+    unix_path=`$CYGPATH -u "$windows_path"`
+    new_path="$unix_path"
+  elif test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.msys"; then
+    unix_path=`$ECHO "$windows_path" | $SED -e 's,^\\(.\\):,/\\1,g' -e 's,\\\\,/,g'`
+    new_path="$unix_path"
+  fi
+
+    fi
 
     if test "x$new_path" = x; then
       # It's still not found. Now this is an unrecoverable error.
@@ -29855,6 +30039,23 @@ $as_echo "$as_me: Neither \"$new_path\" nor \"$new_path.exe/cmd\" can be found"
 
 
     new_path=`$WHICH "$new_path" 2> /dev/null`
+    # bat and cmd files are not always considered executable in MSYS causing which
+    # to not find them
+    if test "x$new_path" = x \
+        && test "x`$ECHO \"$path\" | $GREP -i -e \"\\.bat$\" -e \"\\.cmd$\"`" != x \
+        && test "x`$LS \"$path\" 2>/dev/null`" != x; then
+      new_path="$path"
+
+  windows_path="$new_path"
+  if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.cygwin"; then
+    unix_path=`$CYGPATH -u "$windows_path"`
+    new_path="$unix_path"
+  elif test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.msys"; then
+    unix_path=`$ECHO "$windows_path" | $SED -e 's,^\\(.\\):,/\\1,g' -e 's,\\\\,/,g'`
+    new_path="$unix_path"
+  fi
+
+    fi
 
     if test "x$new_path" = x; then
       # It's still not found. Now this is an unrecoverable error.
@@ -30182,6 +30383,23 @@ $as_echo "$as_me: Neither \"$new_path\" nor \"$new_path.exe/cmd\" can be found"
 
 
     new_path=`$WHICH "$new_path" 2> /dev/null`
+    # bat and cmd files are not always considered executable in MSYS causing which
+    # to not find them
+    if test "x$new_path" = x \
+        && test "x`$ECHO \"$path\" | $GREP -i -e \"\\.bat$\" -e \"\\.cmd$\"`" != x \
+        && test "x`$LS \"$path\" 2>/dev/null`" != x; then
+      new_path="$path"
+
+  windows_path="$new_path"
+  if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.cygwin"; then
+    unix_path=`$CYGPATH -u "$windows_path"`
+    new_path="$unix_path"
+  elif test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.msys"; then
+    unix_path=`$ECHO "$windows_path" | $SED -e 's,^\\(.\\):,/\\1,g' -e 's,\\\\,/,g'`
+    new_path="$unix_path"
+  fi
+
+    fi
 
     if test "x$new_path" = x; then
       # It's still not found. Now this is an unrecoverable error.
@@ -30660,6 +30878,23 @@ $as_echo "$as_me: Neither \"$new_path\" nor \"$new_path.exe/cmd\" can be found"
 
 
     new_path=`$WHICH "$new_path" 2> /dev/null`
+    # bat and cmd files are not always considered executable in MSYS causing which
+    # to not find them
+    if test "x$new_path" = x \
+        && test "x`$ECHO \"$path\" | $GREP -i -e \"\\.bat$\" -e \"\\.cmd$\"`" != x \
+        && test "x`$LS \"$path\" 2>/dev/null`" != x; then
+      new_path="$path"
+
+  windows_path="$new_path"
+  if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.cygwin"; then
+    unix_path=`$CYGPATH -u "$windows_path"`
+    new_path="$unix_path"
+  elif test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.msys"; then
+    unix_path=`$ECHO "$windows_path" | $SED -e 's,^\\(.\\):,/\\1,g' -e 's,\\\\,/,g'`
+    new_path="$unix_path"
+  fi
+
+    fi
 
     if test "x$new_path" = x; then
       # It's still not found. Now this is an unrecoverable error.
@@ -31271,6 +31506,23 @@ $as_echo "$as_me: Neither \"$new_path\" nor \"$new_path.exe/cmd\" can be found"
 
 
     new_path=`$WHICH "$new_path" 2> /dev/null`
+    # bat and cmd files are not always considered executable in MSYS causing which
+    # to not find them
+    if test "x$new_path" = x \
+        && test "x`$ECHO \"$path\" | $GREP -i -e \"\\.bat$\" -e \"\\.cmd$\"`" != x \
+        && test "x`$LS \"$path\" 2>/dev/null`" != x; then
+      new_path="$path"
+
+  windows_path="$new_path"
+  if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.cygwin"; then
+    unix_path=`$CYGPATH -u "$windows_path"`
+    new_path="$unix_path"
+  elif test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.msys"; then
+    unix_path=`$ECHO "$windows_path" | $SED -e 's,^\\(.\\):,/\\1,g' -e 's,\\\\,/,g'`
+    new_path="$unix_path"
+  fi
+
+    fi
 
     if test "x$new_path" = x; then
       # It's still not found. Now this is an unrecoverable error.
@@ -31790,6 +32042,23 @@ $as_echo "$as_me: Neither \"$new_path\" nor \"$new_path.exe/cmd\" can be found"
 
 
     new_path=`$WHICH "$new_path" 2> /dev/null`
+    # bat and cmd files are not always considered executable in MSYS causing which
+    # to not find them
+    if test "x$new_path" = x \
+        && test "x`$ECHO \"$path\" | $GREP -i -e \"\\.bat$\" -e \"\\.cmd$\"`" != x \
+        && test "x`$LS \"$path\" 2>/dev/null`" != x; then
+      new_path="$path"
+
+  windows_path="$new_path"
+  if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.cygwin"; then
+    unix_path=`$CYGPATH -u "$windows_path"`
+    new_path="$unix_path"
+  elif test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.msys"; then
+    unix_path=`$ECHO "$windows_path" | $SED -e 's,^\\(.\\):,/\\1,g' -e 's,\\\\,/,g'`
+    new_path="$unix_path"
+  fi
+
+    fi
 
     if test "x$new_path" = x; then
       # It's still not found. Now this is an unrecoverable error.
@@ -32241,6 +32510,23 @@ $as_echo "$as_me: Neither \"$new_path\" nor \"$new_path.exe/cmd\" can be found"
 
 
     new_path=`$WHICH "$new_path" 2> /dev/null`
+    # bat and cmd files are not always considered executable in MSYS causing which
+    # to not find them
+    if test "x$new_path" = x \
+        && test "x`$ECHO \"$path\" | $GREP -i -e \"\\.bat$\" -e \"\\.cmd$\"`" != x \
+        && test "x`$LS \"$path\" 2>/dev/null`" != x; then
+      new_path="$path"
+
+  windows_path="$new_path"
+  if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.cygwin"; then
+    unix_path=`$CYGPATH -u "$windows_path"`
+    new_path="$unix_path"
+  elif test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.msys"; then
+    unix_path=`$ECHO "$windows_path" | $SED -e 's,^\\(.\\):,/\\1,g' -e 's,\\\\,/,g'`
+    new_path="$unix_path"
+  fi
+
+    fi
 
     if test "x$new_path" = x; then
       # It's still not found. Now this is an unrecoverable error.
@@ -32565,6 +32851,23 @@ $as_echo "$as_me: Neither \"$new_path\" nor \"$new_path.exe/cmd\" can be found"
 
 
     new_path=`$WHICH "$new_path" 2> /dev/null`
+    # bat and cmd files are not always considered executable in MSYS causing which
+    # to not find them
+    if test "x$new_path" = x \
+        && test "x`$ECHO \"$path\" | $GREP -i -e \"\\.bat$\" -e \"\\.cmd$\"`" != x \
+        && test "x`$LS \"$path\" 2>/dev/null`" != x; then
+      new_path="$path"
+
+  windows_path="$new_path"
+  if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.cygwin"; then
+    unix_path=`$CYGPATH -u "$windows_path"`
+    new_path="$unix_path"
+  elif test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.msys"; then
+    unix_path=`$ECHO "$windows_path" | $SED -e 's,^\\(.\\):,/\\1,g' -e 's,\\\\,/,g'`
+    new_path="$unix_path"
+  fi
+
+    fi
 
     if test "x$new_path" = x; then
       # It's still not found. Now this is an unrecoverable error.
@@ -32885,6 +33188,23 @@ $as_echo "$as_me: Neither \"$new_path\" nor \"$new_path.exe/cmd\" can be found"
 
 
     new_path=`$WHICH "$new_path" 2> /dev/null`
+    # bat and cmd files are not always considered executable in MSYS causing which
+    # to not find them
+    if test "x$new_path" = x \
+        && test "x`$ECHO \"$path\" | $GREP -i -e \"\\.bat$\" -e \"\\.cmd$\"`" != x \
+        && test "x`$LS \"$path\" 2>/dev/null`" != x; then
+      new_path="$path"
+
+  windows_path="$new_path"
+  if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.cygwin"; then
+    unix_path=`$CYGPATH -u "$windows_path"`
+    new_path="$unix_path"
+  elif test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.msys"; then
+    unix_path=`$ECHO "$windows_path" | $SED -e 's,^\\(.\\):,/\\1,g' -e 's,\\\\,/,g'`
+    new_path="$unix_path"
+  fi
+
+    fi
 
     if test "x$new_path" = x; then
       # It's still not found. Now this is an unrecoverable error.
@@ -33187,6 +33507,23 @@ $as_echo "$as_me: Neither \"$new_path\" nor \"$new_path.exe/cmd\" can be found"
 
 
     new_path=`$WHICH "$new_path" 2> /dev/null`
+    # bat and cmd files are not always considered executable in MSYS causing which
+    # to not find them
+    if test "x$new_path" = x \
+        && test "x`$ECHO \"$path\" | $GREP -i -e \"\\.bat$\" -e \"\\.cmd$\"`" != x \
+        && test "x`$LS \"$path\" 2>/dev/null`" != x; then
+      new_path="$path"
+
+  windows_path="$new_path"
+  if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.cygwin"; then
+    unix_path=`$CYGPATH -u "$windows_path"`
+    new_path="$unix_path"
+  elif test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.msys"; then
+    unix_path=`$ECHO "$windows_path" | $SED -e 's,^\\(.\\):,/\\1,g' -e 's,\\\\,/,g'`
+    new_path="$unix_path"
+  fi
+
+    fi
 
     if test "x$new_path" = x; then
       # It's still not found. Now this is an unrecoverable error.
@@ -33641,6 +33978,23 @@ $as_echo "$as_me: Neither \"$new_path\" nor \"$new_path.exe/cmd\" can be found"
 
 
     new_path=`$WHICH "$new_path" 2> /dev/null`
+    # bat and cmd files are not always considered executable in MSYS causing which
+    # to not find them
+    if test "x$new_path" = x \
+        && test "x`$ECHO \"$path\" | $GREP -i -e \"\\.bat$\" -e \"\\.cmd$\"`" != x \
+        && test "x`$LS \"$path\" 2>/dev/null`" != x; then
+      new_path="$path"
+
+  windows_path="$new_path"
+  if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.cygwin"; then
+    unix_path=`$CYGPATH -u "$windows_path"`
+    new_path="$unix_path"
+  elif test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.msys"; then
+    unix_path=`$ECHO "$windows_path" | $SED -e 's,^\\(.\\):,/\\1,g' -e 's,\\\\,/,g'`
+    new_path="$unix_path"
+  fi
+
+    fi
 
     if test "x$new_path" = x; then
       # It's still not found. Now this is an unrecoverable error.
@@ -34092,6 +34446,23 @@ $as_echo "$as_me: Neither \"$new_path\" nor \"$new_path.exe/cmd\" can be found"
 
 
     new_path=`$WHICH "$new_path" 2> /dev/null`
+    # bat and cmd files are not always considered executable in MSYS causing which
+    # to not find them
+    if test "x$new_path" = x \
+        && test "x`$ECHO \"$path\" | $GREP -i -e \"\\.bat$\" -e \"\\.cmd$\"`" != x \
+        && test "x`$LS \"$path\" 2>/dev/null`" != x; then
+      new_path="$path"
+
+  windows_path="$new_path"
+  if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.cygwin"; then
+    unix_path=`$CYGPATH -u "$windows_path"`
+    new_path="$unix_path"
+  elif test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.msys"; then
+    unix_path=`$ECHO "$windows_path" | $SED -e 's,^\\(.\\):,/\\1,g' -e 's,\\\\,/,g'`
+    new_path="$unix_path"
+  fi
+
+    fi
 
     if test "x$new_path" = x; then
       # It's still not found. Now this is an unrecoverable error.
@@ -34543,6 +34914,23 @@ $as_echo "$as_me: Neither \"$new_path\" nor \"$new_path.exe/cmd\" can be found"
 
 
     new_path=`$WHICH "$new_path" 2> /dev/null`
+    # bat and cmd files are not always considered executable in MSYS causing which
+    # to not find them
+    if test "x$new_path" = x \
+        && test "x`$ECHO \"$path\" | $GREP -i -e \"\\.bat$\" -e \"\\.cmd$\"`" != x \
+        && test "x`$LS \"$path\" 2>/dev/null`" != x; then
+      new_path="$path"
+
+  windows_path="$new_path"
+  if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.cygwin"; then
+    unix_path=`$CYGPATH -u "$windows_path"`
+    new_path="$unix_path"
+  elif test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.msys"; then
+    unix_path=`$ECHO "$windows_path" | $SED -e 's,^\\(.\\):,/\\1,g' -e 's,\\\\,/,g'`
+    new_path="$unix_path"
+  fi
+
+    fi
 
     if test "x$new_path" = x; then
       # It's still not found. Now this is an unrecoverable error.
@@ -34995,6 +35383,23 @@ $as_echo "$as_me: Neither \"$new_path\" nor \"$new_path.exe/cmd\" can be found"
 
 
     new_path=`$WHICH "$new_path" 2> /dev/null`
+    # bat and cmd files are not always considered executable in MSYS causing which
+    # to not find them
+    if test "x$new_path" = x \
+        && test "x`$ECHO \"$path\" | $GREP -i -e \"\\.bat$\" -e \"\\.cmd$\"`" != x \
+        && test "x`$LS \"$path\" 2>/dev/null`" != x; then
+      new_path="$path"
+
+  windows_path="$new_path"
+  if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.cygwin"; then
+    unix_path=`$CYGPATH -u "$windows_path"`
+    new_path="$unix_path"
+  elif test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.msys"; then
+    unix_path=`$ECHO "$windows_path" | $SED -e 's,^\\(.\\):,/\\1,g' -e 's,\\\\,/,g'`
+    new_path="$unix_path"
+  fi
+
+    fi
 
     if test "x$new_path" = x; then
       # It's still not found. Now this is an unrecoverable error.
@@ -35558,6 +35963,23 @@ $as_echo "$as_me: Neither \"$new_path\" nor \"$new_path.exe/cmd\" can be found"
 
 
     new_path=`$WHICH "$new_path" 2> /dev/null`
+    # bat and cmd files are not always considered executable in MSYS causing which
+    # to not find them
+    if test "x$new_path" = x \
+        && test "x`$ECHO \"$path\" | $GREP -i -e \"\\.bat$\" -e \"\\.cmd$\"`" != x \
+        && test "x`$LS \"$path\" 2>/dev/null`" != x; then
+      new_path="$path"
+
+  windows_path="$new_path"
+  if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.cygwin"; then
+    unix_path=`$CYGPATH -u "$windows_path"`
+    new_path="$unix_path"
+  elif test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.msys"; then
+    unix_path=`$ECHO "$windows_path" | $SED -e 's,^\\(.\\):,/\\1,g' -e 's,\\\\,/,g'`
+    new_path="$unix_path"
+  fi
+
+    fi
 
     if test "x$new_path" = x; then
       # It's still not found. Now this is an unrecoverable error.
@@ -36162,6 +36584,23 @@ $as_echo "$as_me: Neither \"$new_path\" nor \"$new_path.exe/cmd\" can be found"
 
 
     new_path=`$WHICH "$new_path" 2> /dev/null`
+    # bat and cmd files are not always considered executable in MSYS causing which
+    # to not find them
+    if test "x$new_path" = x \
+        && test "x`$ECHO \"$path\" | $GREP -i -e \"\\.bat$\" -e \"\\.cmd$\"`" != x \
+        && test "x`$LS \"$path\" 2>/dev/null`" != x; then
+      new_path="$path"
+
+  windows_path="$new_path"
+  if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.cygwin"; then
+    unix_path=`$CYGPATH -u "$windows_path"`
+    new_path="$unix_path"
+  elif test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.msys"; then
+    unix_path=`$ECHO "$windows_path" | $SED -e 's,^\\(.\\):,/\\1,g' -e 's,\\\\,/,g'`
+    new_path="$unix_path"
+  fi
+
+    fi
 
     if test "x$new_path" = x; then
       # It's still not found. Now this is an unrecoverable error.
@@ -36732,6 +37171,23 @@ $as_echo "$as_me: Neither \"$new_path\" nor \"$new_path.exe/cmd\" can be found"
 
 
     new_path=`$WHICH "$new_path" 2> /dev/null`
+    # bat and cmd files are not always considered executable in MSYS causing which
+    # to not find them
+    if test "x$new_path" = x \
+        && test "x`$ECHO \"$path\" | $GREP -i -e \"\\.bat$\" -e \"\\.cmd$\"`" != x \
+        && test "x`$LS \"$path\" 2>/dev/null`" != x; then
+      new_path="$path"
+
+  windows_path="$new_path"
+  if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.cygwin"; then
+    unix_path=`$CYGPATH -u "$windows_path"`
+    new_path="$unix_path"
+  elif test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.msys"; then
+    unix_path=`$ECHO "$windows_path" | $SED -e 's,^\\(.\\):,/\\1,g' -e 's,\\\\,/,g'`
+    new_path="$unix_path"
+  fi
+
+    fi
 
     if test "x$new_path" = x; then
       # It's still not found. Now this is an unrecoverable error.
@@ -37299,6 +37755,23 @@ $as_echo "$as_me: Neither \"$new_path\" nor \"$new_path.exe/cmd\" can be found"
 
 
     new_path=`$WHICH "$new_path" 2> /dev/null`
+    # bat and cmd files are not always considered executable in MSYS causing which
+    # to not find them
+    if test "x$new_path" = x \
+        && test "x`$ECHO \"$path\" | $GREP -i -e \"\\.bat$\" -e \"\\.cmd$\"`" != x \
+        && test "x`$LS \"$path\" 2>/dev/null`" != x; then
+      new_path="$path"
+
+  windows_path="$new_path"
+  if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.cygwin"; then
+    unix_path=`$CYGPATH -u "$windows_path"`
+    new_path="$unix_path"
+  elif test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.msys"; then
+    unix_path=`$ECHO "$windows_path" | $SED -e 's,^\\(.\\):,/\\1,g' -e 's,\\\\,/,g'`
+    new_path="$unix_path"
+  fi
+
+    fi
 
     if test "x$new_path" = x; then
       # It's still not found. Now this is an unrecoverable error.
@@ -37775,6 +38248,23 @@ $as_echo "$as_me: Neither \"$new_path\" nor \"$new_path.exe/cmd\" can be found"
 
 
     new_path=`$WHICH "$new_path" 2> /dev/null`
+    # bat and cmd files are not always considered executable in MSYS causing which
+    # to not find them
+    if test "x$new_path" = x \
+        && test "x`$ECHO \"$path\" | $GREP -i -e \"\\.bat$\" -e \"\\.cmd$\"`" != x \
+        && test "x`$LS \"$path\" 2>/dev/null`" != x; then
+      new_path="$path"
+
+  windows_path="$new_path"
+  if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.cygwin"; then
+    unix_path=`$CYGPATH -u "$windows_path"`
+    new_path="$unix_path"
+  elif test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.msys"; then
+    unix_path=`$ECHO "$windows_path" | $SED -e 's,^\\(.\\):,/\\1,g' -e 's,\\\\,/,g'`
+    new_path="$unix_path"
+  fi
+
+    fi
 
     if test "x$new_path" = x; then
       # It's still not found. Now this is an unrecoverable error.
@@ -38226,6 +38716,23 @@ $as_echo "$as_me: Neither \"$new_path\" nor \"$new_path.exe/cmd\" can be found"
 
 
     new_path=`$WHICH "$new_path" 2> /dev/null`
+    # bat and cmd files are not always considered executable in MSYS causing which
+    # to not find them
+    if test "x$new_path" = x \
+        && test "x`$ECHO \"$path\" | $GREP -i -e \"\\.bat$\" -e \"\\.cmd$\"`" != x \
+        && test "x`$LS \"$path\" 2>/dev/null`" != x; then
+      new_path="$path"
+
+  windows_path="$new_path"
+  if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.cygwin"; then
+    unix_path=`$CYGPATH -u "$windows_path"`
+    new_path="$unix_path"
+  elif test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.msys"; then
+    unix_path=`$ECHO "$windows_path" | $SED -e 's,^\\(.\\):,/\\1,g' -e 's,\\\\,/,g'`
+    new_path="$unix_path"
+  fi
+
+    fi
 
     if test "x$new_path" = x; then
       # It's still not found. Now this is an unrecoverable error.
@@ -38677,6 +39184,23 @@ $as_echo "$as_me: Neither \"$new_path\" nor \"$new_path.exe/cmd\" can be found"
 
 
     new_path=`$WHICH "$new_path" 2> /dev/null`
+    # bat and cmd files are not always considered executable in MSYS causing which
+    # to not find them
+    if test "x$new_path" = x \
+        && test "x`$ECHO \"$path\" | $GREP -i -e \"\\.bat$\" -e \"\\.cmd$\"`" != x \
+        && test "x`$LS \"$path\" 2>/dev/null`" != x; then
+      new_path="$path"
+
+  windows_path="$new_path"
+  if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.cygwin"; then
+    unix_path=`$CYGPATH -u "$windows_path"`
+    new_path="$unix_path"
+  elif test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.msys"; then
+    unix_path=`$ECHO "$windows_path" | $SED -e 's,^\\(.\\):,/\\1,g' -e 's,\\\\,/,g'`
+    new_path="$unix_path"
+  fi
+
+    fi
 
     if test "x$new_path" = x; then
       # It's still not found. Now this is an unrecoverable error.
@@ -46741,12 +47265,22 @@ $as_echo "$as_me: Found msvcr100.dll at $POSSIBLE_MSVCR_DLL using $METHOD" >&6;}
     { $as_echo "$as_me:${as_lineno-$LINENO}: checking found msvcr100.dll architecture" >&5
 $as_echo_n "checking found msvcr100.dll architecture... " >&6; }
     MSVCR_DLL_FILETYPE=`$FILE -b "$POSSIBLE_MSVCR_DLL"`
-    if test "x$OPENJDK_TARGET_CPU_BITS" = x32; then
-      CORRECT_MSVCR_ARCH=386
+    if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.msys"; then
+      # The MSYS 'file' command returns "PE32 executable for MS Windows (DLL) (GUI) Intel 80386 32-bit"
+      # on x32 and "PE32+ executable for MS Windows (DLL) (GUI) Mono/.Net assembly" on x64 systems.
+      if test "x$OPENJDK_TARGET_CPU_BITS" = x32; then
+        CORRECT_MSVCR_ARCH="PE32 executable"
+      else
+        CORRECT_MSVCR_ARCH="PE32+ executable"
+      fi
     else
-      CORRECT_MSVCR_ARCH=x86-64
+      if test "x$OPENJDK_TARGET_CPU_BITS" = x32; then
+        CORRECT_MSVCR_ARCH=386
+      else
+        CORRECT_MSVCR_ARCH=x86-64
+      fi
     fi
-    if $ECHO "$MSVCR_DLL_FILETYPE" | $GREP $CORRECT_MSVCR_ARCH 2>&1 > /dev/null; then
+    if $ECHO "$MSVCR_DLL_FILETYPE" | $GREP "$CORRECT_MSVCR_ARCH" 2>&1 > /dev/null; then
       { $as_echo "$as_me:${as_lineno-$LINENO}: result: ok" >&5
 $as_echo "ok" >&6; }
       MSVCR_DLL="$POSSIBLE_MSVCR_DLL"
@@ -46797,12 +47331,22 @@ $as_echo "$as_me: Found msvcr100.dll at $POSSIBLE_MSVCR_DLL using $METHOD" >&6;}
     { $as_echo "$as_me:${as_lineno-$LINENO}: checking found msvcr100.dll architecture" >&5
 $as_echo_n "checking found msvcr100.dll architecture... " >&6; }
     MSVCR_DLL_FILETYPE=`$FILE -b "$POSSIBLE_MSVCR_DLL"`
-    if test "x$OPENJDK_TARGET_CPU_BITS" = x32; then
-      CORRECT_MSVCR_ARCH=386
+    if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.msys"; then
+      # The MSYS 'file' command returns "PE32 executable for MS Windows (DLL) (GUI) Intel 80386 32-bit"
+      # on x32 and "PE32+ executable for MS Windows (DLL) (GUI) Mono/.Net assembly" on x64 systems.
+      if test "x$OPENJDK_TARGET_CPU_BITS" = x32; then
+        CORRECT_MSVCR_ARCH="PE32 executable"
+      else
+        CORRECT_MSVCR_ARCH="PE32+ executable"
+      fi
     else
-      CORRECT_MSVCR_ARCH=x86-64
+      if test "x$OPENJDK_TARGET_CPU_BITS" = x32; then
+        CORRECT_MSVCR_ARCH=386
+      else
+        CORRECT_MSVCR_ARCH=x86-64
+      fi
     fi
-    if $ECHO "$MSVCR_DLL_FILETYPE" | $GREP $CORRECT_MSVCR_ARCH 2>&1 > /dev/null; then
+    if $ECHO "$MSVCR_DLL_FILETYPE" | $GREP "$CORRECT_MSVCR_ARCH" 2>&1 > /dev/null; then
       { $as_echo "$as_me:${as_lineno-$LINENO}: result: ok" >&5
 $as_echo "ok" >&6; }
       MSVCR_DLL="$POSSIBLE_MSVCR_DLL"
@@ -46835,12 +47379,22 @@ $as_echo "$as_me: Found msvcr100.dll at $POSSIBLE_MSVCR_DLL using $METHOD" >&6;}
     { $as_echo "$as_me:${as_lineno-$LINENO}: checking found msvcr100.dll architecture" >&5
 $as_echo_n "checking found msvcr100.dll architecture... " >&6; }
     MSVCR_DLL_FILETYPE=`$FILE -b "$POSSIBLE_MSVCR_DLL"`
-    if test "x$OPENJDK_TARGET_CPU_BITS" = x32; then
-      CORRECT_MSVCR_ARCH=386
+    if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.msys"; then
+      # The MSYS 'file' command returns "PE32 executable for MS Windows (DLL) (GUI) Intel 80386 32-bit"
+      # on x32 and "PE32+ executable for MS Windows (DLL) (GUI) Mono/.Net assembly" on x64 systems.
+      if test "x$OPENJDK_TARGET_CPU_BITS" = x32; then
+        CORRECT_MSVCR_ARCH="PE32 executable"
+      else
+        CORRECT_MSVCR_ARCH="PE32+ executable"
+      fi
     else
-      CORRECT_MSVCR_ARCH=x86-64
+      if test "x$OPENJDK_TARGET_CPU_BITS" = x32; then
+        CORRECT_MSVCR_ARCH=386
+      else
+        CORRECT_MSVCR_ARCH=x86-64
+      fi
     fi
-    if $ECHO "$MSVCR_DLL_FILETYPE" | $GREP $CORRECT_MSVCR_ARCH 2>&1 > /dev/null; then
+    if $ECHO "$MSVCR_DLL_FILETYPE" | $GREP "$CORRECT_MSVCR_ARCH" 2>&1 > /dev/null; then
       { $as_echo "$as_me:${as_lineno-$LINENO}: result: ok" >&5
 $as_echo "ok" >&6; }
       MSVCR_DLL="$POSSIBLE_MSVCR_DLL"
@@ -46883,12 +47437,22 @@ $as_echo "$as_me: Found msvcr100.dll at $POSSIBLE_MSVCR_DLL using $METHOD" >&6;}
     { $as_echo "$as_me:${as_lineno-$LINENO}: checking found msvcr100.dll architecture" >&5
 $as_echo_n "checking found msvcr100.dll architecture... " >&6; }
     MSVCR_DLL_FILETYPE=`$FILE -b "$POSSIBLE_MSVCR_DLL"`
-    if test "x$OPENJDK_TARGET_CPU_BITS" = x32; then
-      CORRECT_MSVCR_ARCH=386
+    if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.msys"; then
+      # The MSYS 'file' command returns "PE32 executable for MS Windows (DLL) (GUI) Intel 80386 32-bit"
+      # on x32 and "PE32+ executable for MS Windows (DLL) (GUI) Mono/.Net assembly" on x64 systems.
+      if test "x$OPENJDK_TARGET_CPU_BITS" = x32; then
+        CORRECT_MSVCR_ARCH="PE32 executable"
+      else
+        CORRECT_MSVCR_ARCH="PE32+ executable"
+      fi
     else
-      CORRECT_MSVCR_ARCH=x86-64
+      if test "x$OPENJDK_TARGET_CPU_BITS" = x32; then
+        CORRECT_MSVCR_ARCH=386
+      else
+        CORRECT_MSVCR_ARCH=x86-64
+      fi
     fi
-    if $ECHO "$MSVCR_DLL_FILETYPE" | $GREP $CORRECT_MSVCR_ARCH 2>&1 > /dev/null; then
+    if $ECHO "$MSVCR_DLL_FILETYPE" | $GREP "$CORRECT_MSVCR_ARCH" 2>&1 > /dev/null; then
       { $as_echo "$as_me:${as_lineno-$LINENO}: result: ok" >&5
 $as_echo "ok" >&6; }
       MSVCR_DLL="$POSSIBLE_MSVCR_DLL"
@@ -46936,12 +47500,22 @@ $as_echo "$as_me: Found msvcr100.dll at $POSSIBLE_MSVCR_DLL using $METHOD" >&6;}
     { $as_echo "$as_me:${as_lineno-$LINENO}: checking found msvcr100.dll architecture" >&5
 $as_echo_n "checking found msvcr100.dll architecture... " >&6; }
     MSVCR_DLL_FILETYPE=`$FILE -b "$POSSIBLE_MSVCR_DLL"`
-    if test "x$OPENJDK_TARGET_CPU_BITS" = x32; then
-      CORRECT_MSVCR_ARCH=386
+    if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.msys"; then
+      # The MSYS 'file' command returns "PE32 executable for MS Windows (DLL) (GUI) Intel 80386 32-bit"
+      # on x32 and "PE32+ executable for MS Windows (DLL) (GUI) Mono/.Net assembly" on x64 systems.
+      if test "x$OPENJDK_TARGET_CPU_BITS" = x32; then
+        CORRECT_MSVCR_ARCH="PE32 executable"
+      else
+        CORRECT_MSVCR_ARCH="PE32+ executable"
+      fi
     else
-      CORRECT_MSVCR_ARCH=x86-64
+      if test "x$OPENJDK_TARGET_CPU_BITS" = x32; then
+        CORRECT_MSVCR_ARCH=386
+      else
+        CORRECT_MSVCR_ARCH=x86-64
+      fi
     fi
-    if $ECHO "$MSVCR_DLL_FILETYPE" | $GREP $CORRECT_MSVCR_ARCH 2>&1 > /dev/null; then
+    if $ECHO "$MSVCR_DLL_FILETYPE" | $GREP "$CORRECT_MSVCR_ARCH" 2>&1 > /dev/null; then
       { $as_echo "$as_me:${as_lineno-$LINENO}: result: ok" >&5
 $as_echo "ok" >&6; }
       MSVCR_DLL="$POSSIBLE_MSVCR_DLL"
@@ -46985,12 +47559,22 @@ $as_echo "$as_me: Found msvcr100.dll at $POSSIBLE_MSVCR_DLL using $METHOD" >&6;}
     { $as_echo "$as_me:${as_lineno-$LINENO}: checking found msvcr100.dll architecture" >&5
 $as_echo_n "checking found msvcr100.dll architecture... " >&6; }
     MSVCR_DLL_FILETYPE=`$FILE -b "$POSSIBLE_MSVCR_DLL"`
-    if test "x$OPENJDK_TARGET_CPU_BITS" = x32; then
-      CORRECT_MSVCR_ARCH=386
+    if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.msys"; then
+      # The MSYS 'file' command returns "PE32 executable for MS Windows (DLL) (GUI) Intel 80386 32-bit"
+      # on x32 and "PE32+ executable for MS Windows (DLL) (GUI) Mono/.Net assembly" on x64 systems.
+      if test "x$OPENJDK_TARGET_CPU_BITS" = x32; then
+        CORRECT_MSVCR_ARCH="PE32 executable"
+      else
+        CORRECT_MSVCR_ARCH="PE32+ executable"
+      fi
     else
-      CORRECT_MSVCR_ARCH=x86-64
+      if test "x$OPENJDK_TARGET_CPU_BITS" = x32; then
+        CORRECT_MSVCR_ARCH=386
+      else
+        CORRECT_MSVCR_ARCH=x86-64
+      fi
     fi
-    if $ECHO "$MSVCR_DLL_FILETYPE" | $GREP $CORRECT_MSVCR_ARCH 2>&1 > /dev/null; then
+    if $ECHO "$MSVCR_DLL_FILETYPE" | $GREP "$CORRECT_MSVCR_ARCH" 2>&1 > /dev/null; then
       { $as_echo "$as_me:${as_lineno-$LINENO}: result: ok" >&5
 $as_echo "ok" >&6; }
       MSVCR_DLL="$POSSIBLE_MSVCR_DLL"
@@ -47933,7 +48517,7 @@ $as_echo "no, disabling ccaching of precompiled headers" >&6; }
 
 # Check for some common pitfalls
 
-  if test x"$OPENJDK_BUILD_OS" = xwindows; then
+  if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.cygwin"; then
     file_to_test="$SRC_ROOT/LICENSE"
     if test `$STAT -c '%a' "$file_to_test"` -lt 400; then
       as_fn_error $? "Bad file permissions on src files. This is usually caused by cloning the repositories with a non cygwin hg in a directory not created in cygwin." "$LINENO" 5
diff --git a/common/autoconf/platform.m4 b/common/autoconf/platform.m4
index 344dbfbc5eafdb7fbf4b369bdce8e8bf2c929369..bf109d5076c4425f9d1379553dee1dfbf41fcf8b 100644
--- a/common/autoconf/platform.m4
+++ b/common/autoconf/platform.m4
@@ -179,6 +179,7 @@ AC_DEFUN([PLATFORM_EXTRACT_TARGET_AND_BUILD],
   OPENJDK_BUILD_CPU_ENDIAN="$VAR_CPU_ENDIAN"
   AC_SUBST(OPENJDK_BUILD_OS)
   AC_SUBST(OPENJDK_BUILD_OS_API)
+  AC_SUBST(OPENJDK_BUILD_OS_ENV)
   AC_SUBST(OPENJDK_BUILD_CPU)
   AC_SUBST(OPENJDK_BUILD_CPU_ARCH)
   AC_SUBST(OPENJDK_BUILD_CPU_BITS)
@@ -200,6 +201,7 @@ AC_DEFUN([PLATFORM_EXTRACT_TARGET_AND_BUILD],
   OPENJDK_TARGET_CPU_ENDIAN="$VAR_CPU_ENDIAN"
   AC_SUBST(OPENJDK_TARGET_OS)
   AC_SUBST(OPENJDK_TARGET_OS_API)
+  AC_SUBST(OPENJDK_TARGET_OS_ENV)
   AC_SUBST(OPENJDK_TARGET_CPU)
   AC_SUBST(OPENJDK_TARGET_CPU_ARCH)
   AC_SUBST(OPENJDK_TARGET_CPU_BITS)
diff --git a/common/autoconf/spec.gmk.in b/common/autoconf/spec.gmk.in
index cedcf07bf2d0bb28e52114e3a0dd414247ae3406..dd8cb5e6e99ffa95b965ee47c2400745c6cb7c42 100644
--- a/common/autoconf/spec.gmk.in
+++ b/common/autoconf/spec.gmk.in
@@ -101,6 +101,7 @@ OPENJDK_TARGET_OS_EXPORT_DIR:=@OPENJDK_TARGET_OS_EXPORT_DIR@
 # When not cross-compiling, it is the same as the target.
 OPENJDK_BUILD_OS:=@OPENJDK_BUILD_OS@
 OPENJDK_BUILD_OS_API:=@OPENJDK_BUILD_OS_API@
+OPENJDK_BUILD_OS_ENV:=@OPENJDK_BUILD_OS_ENV@
 
 OPENJDK_BUILD_CPU:=@OPENJDK_BUILD_CPU@
 OPENJDK_BUILD_CPU_ARCH:=@OPENJDK_BUILD_CPU_ARCH@
diff --git a/common/autoconf/toolchain_windows.m4 b/common/autoconf/toolchain_windows.m4
index b4888a46ac5605b6d1ec4298f4d9567196d48944..bdd110582c99663232e0ed5c3dc0564e7b30880b 100644
--- a/common/autoconf/toolchain_windows.m4
+++ b/common/autoconf/toolchain_windows.m4
@@ -244,12 +244,22 @@ AC_DEFUN([TOOLCHAIN_CHECK_POSSIBLE_MSVCR_DLL],
     # Need to check if the found msvcr is correct architecture
     AC_MSG_CHECKING([found msvcr100.dll architecture])
     MSVCR_DLL_FILETYPE=`$FILE -b "$POSSIBLE_MSVCR_DLL"`
-    if test "x$OPENJDK_TARGET_CPU_BITS" = x32; then
-      CORRECT_MSVCR_ARCH=386
+    if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.msys"; then
+      # The MSYS 'file' command returns "PE32 executable for MS Windows (DLL) (GUI) Intel 80386 32-bit"
+      # on x32 and "PE32+ executable for MS Windows (DLL) (GUI) Mono/.Net assembly" on x64 systems.
+      if test "x$OPENJDK_TARGET_CPU_BITS" = x32; then
+        CORRECT_MSVCR_ARCH="PE32 executable"
+      else
+        CORRECT_MSVCR_ARCH="PE32+ executable"
+      fi
     else
-      CORRECT_MSVCR_ARCH=x86-64
+      if test "x$OPENJDK_TARGET_CPU_BITS" = x32; then
+        CORRECT_MSVCR_ARCH=386
+      else
+        CORRECT_MSVCR_ARCH=x86-64
+      fi
     fi
-    if $ECHO "$MSVCR_DLL_FILETYPE" | $GREP $CORRECT_MSVCR_ARCH 2>&1 > /dev/null; then
+    if $ECHO "$MSVCR_DLL_FILETYPE" | $GREP "$CORRECT_MSVCR_ARCH" 2>&1 > /dev/null; then
       AC_MSG_RESULT([ok])
       MSVCR_DLL="$POSSIBLE_MSVCR_DLL"
       AC_MSG_CHECKING([for msvcr100.dll])
diff --git a/make/common/NativeCompilation.gmk b/make/common/NativeCompilation.gmk
index 7616dc17ce0768b90f737a3f385aec8903eee95a..d0827ef04223dc8e147729a34602684a048b2183 100644
--- a/make/common/NativeCompilation.gmk
+++ b/make/common/NativeCompilation.gmk
@@ -43,6 +43,12 @@ else
   ARCHIVING_MSG=
 endif
 
+ifeq ($(OPENJDK_BUILD_OS_ENV), windows.cygwin)
+  UNIX_PATH_PREFIX := /cygdrive
+else ifeq ($(OPENJDK_BUILD_OS_ENV), windows.msys)
+  UNIX_PATH_PREFIX :=
+endif
+
 define add_native_source
   # param 1 = BUILD_MYPACKAGE
   # parma 2 = the source file name (..../alfa.c or .../beta.cpp)
@@ -117,7 +123,7 @@ define add_native_source
 	  && $(SED) -e '/^Note: including file:/!d' \
 	      -e 's|Note: including file: *||' \
 	      -e 's|\\|/|g' \
-	      -e 's|^\([a-zA-Z]\):|/cygdrive/\1|g' \
+	      -e 's|^\([a-zA-Z]\):|$(UNIX_PATH_PREFIX)/\1|g' \
 	      -e '/$(subst /,\/,$(TOPDIR))/!d' \
 	      -e 's|$$$$| \\|g' \
 	      $$($1_$2_DEP).raw) > $$($1_$2_DEP)