deleted file mode 100644
--- a/build/msys-perl-wrapper
+++ /dev/null
@@ -1,20 +0,0 @@
-#!/bin/sh
-# This Source Code Form is subject to the terms of the Mozilla Public
-# License, v. 2.0. If a copy of the MPL was not distributed with this
-# file, You can obtain one at http://mozilla.org/MPL/2.0/.
-
-
-args=""
-
-for i in "${@}"
-do
-    case "$i" in
-    -I?:/*)
-        i="$(echo "${i}" | sed -e 's|^-I\(.\):/|-I/\1/|')"
-	;;
-    esac
-
-    args="${args} '${i}'"
-done
-
-eval "exec perl $args"

--- a/configure.in
+++ b/configure.in
@@ -1834,21 +1834,16 @@ case "$host" in
         HOST_CFLAGS="$HOST_CFLAGS -TC -nologo"
         HOST_RANLIB='echo ranlib'
     else
         HOST_CFLAGS="$HOST_CFLAGS -mwindows"
     fi
     HOST_CFLAGS="$HOST_CFLAGS -DXP_WIN32 -DXP_WIN -DWIN32 -D_WIN32 -DNO_X11 -D_CRT_SECURE_NO_WARNINGS"
     HOST_OPTIMIZE_FLAGS="${HOST_OPTIMIZE_FLAGS=-O2}"
     HOST_BIN_SUFFIX=.exe
-    case "$host" in
-    *mingw*)
-        PERL="/bin/sh ${_topsrcdir}/build/msys-perl-wrapper"
-        ;;
-    esac
 
     case "${host_cpu}" in
     i*86)
         if test -n "$_WIN32_MSVC"; then
             HOST_LDFLAGS="$HOST_LDFLAGS -MACHINE:X86"
         fi
         ;;
     x86_64)

--- a/js/src/configure.in
+++ b/js/src/configure.in
@@ -1378,21 +1378,16 @@ case "$host" in
         HOST_CFLAGS="$HOST_CFLAGS -TC -nologo"
         HOST_RANLIB='echo ranlib'
     else
         HOST_CFLAGS="$HOST_CFLAGS -mwindows"
     fi
     HOST_CFLAGS="$HOST_CFLAGS -DXP_WIN32 -DXP_WIN -DWIN32 -D_WIN32 -DNO_X11 -D_CRT_SECURE_NO_WARNINGS"
     HOST_OPTIMIZE_FLAGS="${HOST_OPTIMIZE_FLAGS=-O2}"
     HOST_BIN_SUFFIX=.exe
-    case "$host" in
-    *mingw*)
-        PERL="/bin/sh ${_topsrcdir}/build/msys-perl-wrapper"
-        ;;
-    esac
 
     case "${host_cpu}" in
     i*86)
         if test -n "$_WIN32_MSVC"; then
             HOST_LDFLAGS="$HOST_LDFLAGS -MACHINE:X86"
         fi
         ;;
     x86_64)