diff --git a/build.sh b/build.sh
index 690e9c0ec3ef33e44c6a3eeeafbb40cd08db8e1a..9e1ebf2149511fe4daca2a9a0a572dbdcd955635 100755
--- a/build.sh
+++ b/build.sh
@@ -101,7 +101,7 @@ pre_build()
 
     check_for "Confirm dictionaries are installed before 'autobuild configure'" ${build_dir}/packages/dictionaries
 
-    "$AUTOBUILD" configure -c $variant -- \
+    "$autobuild" configure -c $variant -- \
      -DPACKAGE:BOOL=ON \
      -DRELEASE_CRASH_REPORTING:BOOL=ON \
      -DVIEWER_CHANNEL:STRING="\"$viewer_channel\"" \
@@ -119,12 +119,12 @@ package_llphysicsextensions_tpv()
   if [ "$variant" = "Release" ]
   then 
       llpetpvcfg=$build_dir/packages/llphysicsextensions/autobuild-tpv.xml
-      "$AUTOBUILD" build --verbose --config-file $llpetpvcfg -c Tpv
+      "$autobuild" build --verbose --config-file $llpetpvcfg -c Tpv
       
       # capture the package file name for use in upload later...
       PKGTMP=`mktemp -t pgktpv.XXXXXX`
       trap "rm $PKGTMP* 2>/dev/null" 0
-      "$AUTOBUILD" package --verbose --config-file $llpetpvcfg --results-file "$(native_path $PKGTMP)"
+      "$autobuild" package --verbose --config-file $llpetpvcfg --results-file "$(native_path $PKGTMP)"
       tpv_status=$?
       if [ -r "${PKGTMP}" ]
       then
@@ -148,7 +148,7 @@ build()
   then
     begin_section "Viewer$variant"
 
-    "$AUTOBUILD" build --no-configure -c $variant
+    "$autobuild" build --no-configure -c $variant
     build_ok=$?
     end_section "Viewer$variant"
 
@@ -216,30 +216,16 @@ fi
 # Check to see if we're skipping the platform
 eval '$build_'"$arch" || pass
 
-if [ -z "$AUTOBUILD" ]
+# set "$autobuild" to cygwin path form for use locally in this script
+autobuild="$(shell_path "$AUTOBUILD")"
+if [ ! -x "$autobuild" ]
 then
-  export autobuild_dir="$here/../../../autobuild/bin/"
-  if [ -d "$autobuild_dir" ]
-  then
-    export AUTOBUILD="$autobuild_dir"autobuild
-    if [ -x "$AUTOBUILD" ]
-    then
-      # *HACK - bash doesn't know how to pass real pathnames to native windows python
-      case "$arch" in
-      CYGWIN) AUTOBUILD=$(cygpath -u $AUTOBUILD.cmd) ;;
-      esac
-    else
-      record_failure "Not executable: $AUTOBUILD"
-      exit 1
-    fi
-  else
-    record_failure "Not found: $autobuild_dir"
-    exit 1
-  fi
+  record_failure "AUTOBUILD not executable: '$autobuild'"
+  exit 1
 fi
 
-# load autbuild provided shell functions and variables
-eval "$("$AUTOBUILD" source_environment)"
+# load autobuild provided shell functions and variables
+eval "$("$autobuild" source_environment)"
 
 # dump environment variables for debugging
 begin_section "Environment"
diff --git a/indra/cmake/FindAutobuild.cmake b/indra/cmake/FindAutobuild.cmake
index 84ae41e8aa7f2ea9a18ee73cc17403efaaae089a..ea5ad6d1086684e943a0dbe2ba1bd82ab65cfc56 100755
--- a/indra/cmake/FindAutobuild.cmake
+++ b/indra/cmake/FindAutobuild.cmake
@@ -4,7 +4,7 @@
 #
 # Output variables:
 #
-#   AUTOBUILD_EXECUTABLE - path to autobuild or pautobuild executable
+#   AUTOBUILD_EXECUTABLE - path to autobuild executable
 
 
 
@@ -13,12 +13,9 @@ IF (NOT AUTOBUILD_EXECUTABLE)
   # If cmake was executed by autobuild, autobuild will have set the AUTOBUILD env var
   IF (DEFINED ENV{AUTOBUILD})
     SET(AUTOBUILD_EXECUTABLE $ENV{AUTOBUILD})
-    # In case $AUTOBUILD is a cygwin path, fix it back to Windows style
-    STRING(REGEX REPLACE "^/cygdrive/(.)/" "\\1:/" AUTOBUILD_EXECUTABLE
-           "${AUTOBUILD_EXECUTABLE}")
   ELSE (DEFINED ENV{AUTOBUILD})
     IF(WIN32)
-      SET(AUTOBUILD_EXE_NAMES autobuild.cmd autobuild.exe)
+      SET(AUTOBUILD_EXE_NAMES autobuild.exe autobuild.cmd)
     ELSE(WIN32)
       SET(AUTOBUILD_EXE_NAMES autobuild)
     ENDIF(WIN32)
@@ -28,21 +25,19 @@ IF (NOT AUTOBUILD_EXECUTABLE)
       AUTOBUILD_EXECUTABLE 
       NAMES ${AUTOBUILD_EXE_NAMES}
       PATHS 
-    ENV PATH
-    ${CMAKE_SOURCE_DIR}/.. 
-    ${CMAKE_SOURCE_DIR}/../..
-    ${CMAKE_SOURCE_DIR}/../../..
+        ENV PATH
+        ${CMAKE_SOURCE_DIR}/.. 
+        ${CMAKE_SOURCE_DIR}/../..
+        ${CMAKE_SOURCE_DIR}/../../..
       PATH_SUFFIXES "/autobuild/bin/"
     )
   ENDIF (DEFINED ENV{AUTOBUILD})
 
-  IF (AUTOBUILD_EXECUTABLE)
-    GET_FILENAME_COMPONENT(_autobuild_name ${AUTOBUILD_EXECUTABLE} NAME_WE)
-  ELSE (AUTOBUILD_EXECUTABLE)
+  IF (NOT AUTOBUILD_EXECUTABLE)
     IF (AUTOBUILD_FIND_REQUIRED)
       MESSAGE(FATAL_ERROR "Could not find autobuild executable")
     ENDIF (AUTOBUILD_FIND_REQUIRED)
-  ENDIF (AUTOBUILD_EXECUTABLE)
+  ENDIF (NOT AUTOBUILD_EXECUTABLE)
 
   MARK_AS_ADVANCED(AUTOBUILD_EXECUTABLE)
 ENDIF (NOT AUTOBUILD_EXECUTABLE)
diff --git a/indra/newview/viewer_manifest.py b/indra/newview/viewer_manifest.py
index 5b03cd83ca2584cbd1ea02c307443ce9a2c62042..84551b553d5995e336cb231cb0dd6c2d2191b87c 100755
--- a/indra/newview/viewer_manifest.py
+++ b/indra/newview/viewer_manifest.py
@@ -38,7 +38,7 @@
 # Put it FIRST because some of our build hosts have an ancient install of
 # indra.util.llmanifest under their system Python!
 sys.path.insert(0, os.path.join(viewer_dir, os.pardir, "lib", "python"))
-from indra.util.llmanifest import LLManifest, main, proper_windows_path, path_ancestors, CHANNEL_VENDOR_BASE, RELEASE_CHANNEL, ManifestError
+from indra.util.llmanifest import LLManifest, main, path_ancestors, CHANNEL_VENDOR_BASE, RELEASE_CHANNEL, ManifestError
 try:
     from llbase import llsd
 except ImportError:
@@ -582,7 +582,7 @@ def package_finish(self):
         while (not installer_created) and (nsis_attempts > 0):
             try:
                 nsis_attempts-=1;
-                self.run_command('"' + proper_windows_path(NSIS_path) + '" ' + self.dst_path_of(tempfile))
+                self.run_command('"' + NSIS_path + '" ' + self.dst_path_of(tempfile))
                 installer_created=True # if no exception was raised, the codesign worked
             except ManifestError, err:
                 if nsis_attempts:
diff --git a/scripts/automated_build_scripts/opensrc-build.sh b/scripts/automated_build_scripts/opensrc-build.sh
deleted file mode 100755
index c1b592a9721203e1754f9f85681fcc0a1ae275ce..0000000000000000000000000000000000000000
--- a/scripts/automated_build_scripts/opensrc-build.sh
+++ /dev/null
@@ -1,391 +0,0 @@
-#!/bin/sh
-
-# This is the build script used by Linden Lab's autmated build system.
-#
-
-set -x
-
-export PATH=/bin:/usr/bin:$PATH
-arch=`uname | cut -b-6`
-here=`echo $0 | sed 's:[^/]*$:.:'`
-year=`date +%Y`
-branch=`svn info | grep '^URL:' | sed 's:.*/::'`
-revision=`svn info | grep '^Revision:' | sed 's/.*: //'`
-
-[ x"$WGET_CACHE" = x ] && export WGET_CACHE=/var/tmp/parabuild/wget
-[ x"$S3GET_URL" = x ]  && export S3GET_URL=http://viewer-source-downloads.s3.amazonaws.com/$year
-[ x"$S3PUT_URL" = x ]  && export S3PUT_URL=https://s3.amazonaws.com/viewer-source-downloads/$year
-[ x"$PUBLIC_URL" = x ] && export PUBLIC_URL=http://secondlife.com/developers/opensource/downloads/$year
-[ x"$PUBLIC_EMAIL" = x ] && export PUBLIC_EMAIL=sldev-commits@lists.secondlife.com
-
-# Make sure command worked and bail out if not, reporting failure to parabuild
-fail()
-{
-  release_lock
-  echo "BUILD FAILED" $@
-  exit 1
-}
-  
-pass() 
-{ 
-  release_lock
-  echo "BUILD SUCCESSFUL"
-  exit 0
-}
-
-# Locking to avoid contention with u-s-c
-LOCK_CREATE=/usr/bin/lockfile-create
-LOCK_TOUCH=/usr/bin/lockfile-touch
-LOCK_REMOVE=/usr/bin/lockfile-remove
-LOCK_PROCESS=
-
-locking_available()
-{
-  test -x "$LOCK_CREATE"\
-    -a -x "$LOCK_TOUCH"\
-    -a -x "$LOCK_REMOVE"
-}
-
-acquire_lock()
-{
-  if locking_available 
-  then
-    if "$LOCK_CREATE" /var/lock/update-system-config --retry 99
-    then
-      "$LOCK_TOUCH" /var/lock/update-system-config &
-      LOCK_PROCESS="$!"
-    else
-      fail acquire lock
-    fi
-  else
-    true
-  fi
-}
-
-release_lock()
-{
-  if locking_available
-  then
-    if test x"$LOCK_PROCESS" != x
-    then
-      kill "$LOCK_PROCESS"
-      "$LOCK_REMOVE" /var/lock/update-system-config
-    else
-      echo No Lock Acquired >&2
-    fi
-  else
-    true
-  fi
-}
-
-get_asset()
-{
-  mkdir -p "$WGET_CACHE" || fail creating WGET_CACHE
-  local tarball=`basename "$1"`
-  test -r "$WGET_CACHE/$tarball" || ( cd "$WGET_CACHE" && curl --location --remote-name "$1" || fail getting $1 )
-  case "$tarball" in
-  *.zip) unzip -qq -d .. -o "$WGET_CACHE/$tarball" || fail unzip $tarball ;;
-  *.tar.gz|*.tgz) tar -C .. -xzf  "$WGET_CACHE/$tarball" || fail untar $tarball ;;
-  *) fail unrecognized filetype: $tarball ;;
-  esac
-}
-
-s3_available()
-{
-  test -x "$helpers/s3get.sh" -a -x "$helpers/s3put.sh" -a -r "$helpers/s3curl.pl"
-}
-
-build_dir_Darwin()
-{
-  echo build-darwin-universal
-}
-
-build_dir_Linux()
-{
-  echo viewer-linux-i686-`echo $1 | tr A-Z a-z`
-}
-
-build_dir_CYGWIN()
-{
-  echo build-vc80
-}
-
-installer_Darwin()
-{
-  ls -1td "`build_dir_Darwin Release`/newview/"*.dmg 2>/dev/null | sed 1q
-}
-
-installer_Linux()
-{
-  ls -1td "`build_dir_Linux Release`/newview/"*.tar.bz2 2>/dev/null | sed 1q
-}
-
-installer_CYGWIN()
-{
-  d=`build_dir_CYGWIN Release`
-  p=`sed 's:.*=::' "$d/newview/Release/touched.bat"`
-  echo "$d/newview/Release/$p"
-}
-
-# deal with aborts etc..
-trap fail 1 2 3 14 15
-
-# Check location
-cd "$here/../.."
-
-test -x ../linden/scripts/automated_build_scripts/opensrc-build.sh\
- || fail 'The parent dir of your checkout needs to be named "linden"' 
-
-. doc/asset_urls.txt
-get_asset "$SLASSET_ART"
-
-
-# Set up platform specific stuff
-case "$arch" in
-
-# Note that we can only build the "Release" variant for Darwin, because of a compiler bug:
-# ld: bl out of range (-16777272 max is +/-16M)
-#  from __static_initialization_and_destruction_0(int, int)at 0x033D319C
-#  in __StaticInit of
-#  indra/build-darwin-universal/newview/SecondLife.build/Debug/Second Life.build/Objects-normal/ppc/llvoicevisualizer.o
-#  to ___cxa_atexit$island_2 at 0x023D50F8
-#  in __text of
-#  indra/build-darwin-universal/newview/SecondLife.build/Debug/Second Life.build/Objects-normal/ppc/Second Life
-#  in __static_initialization_and_destruction_0(int, int)
-#  from indra/build-darwin-universal/newview/SecondLife.build/Debug/Second Life.build/Objects-normal/ppc/llvoicevisualizer.o
-
-Darwin)
-  helpers=/usr/local/buildscripts/generic_vc
-  variants="Release"
-  cmake_generator="Xcode"
-  fmod=fmodapi375mac
-  fmod_tar="$fmod.zip"
-  fmod_so=libfmod.a
-  fmod_lib=lib
-  target_dirs="libraries/universal-darwin/lib_debug
-               libraries/universal-darwin/lib_release
-               libraries/universal-darwin/lib_release_client"
-  other_archs="$S3GET_URL/$branch/$revision/CYGWIN $S3GET_URL/$branch/$revision/Linux"
-  mail="$helpers"/mail.py
-  all_done="$helpers"/all_done.py
-  get_asset "$SLASSET_LIBS_DARWIN"
-  ;;
-
-CYGWIN)
-  helpers=/cygdrive/c/buildscripts
-  variants="Debug RelWithDebInfo Release"
-  #variants="Release"
-  cmake_generator="vc80"
-  fmod=fmodapi375win
-  fmod_tar=fmodapi375win.zip
-  fmod_so=fmodvc.lib
-  fmod_lib=lib
-  target_dirs="libraries/i686-win32/lib/debug
-               libraries/i686-win32/lib/release"
-  other_archs="$S3GET_URL/$branch/$revision/Darwin $S3GET_URL/$branch/$revision/Linux"
-  export PATH="/cygdrive/c/Python25:/cygdrive/c/Program Files/Cmake 2.6/bin":$PATH
-  export PERL="/cygdrive/c/Perl/bin/perl.exe"
-  export S3CURL="C:\\buildscripts\s3curl.pl"
-  export CURL="C:\\cygwin\\bin\\curl.exe"
-  mail="C:\\buildscripts\\mail.py"
-  all_done="C:\\buildscripts\\all_done.py"
-  get_asset "$SLASSET_LIBS_WIN32"
-  ;;
-
-Linux)
-  helpers=/var/opt/parabuild/buildscripts/generic_vc
-  [ x"$CXX" = x ] && test -x /usr/bin/g++-4.1 && export CXX=/usr/bin/g++-4.1
-  acquire_lock
-  variants="Debug RelWithDebInfo Release"
-  #variants="Release"
-  cmake_generator="Unix Makefiles"
-  fmod=fmodapi375linux
-  fmod_tar="$fmod".tar.gz
-  fmod_so=libfmod-3.75.so
-  fmod_lib=.
-  target_dirs="libraries/i686-linux/lib_debug
-               libraries/i686-linux/lib_release
-               libraries/i686-linux/lib_release_client"
-  other_archs="$S3GET_URL/$branch/$revision/Darwin $S3GET_URL/$branch/$revision/CYGWIN"
-  mail="$helpers"/mail.py
-  all_done="$helpers"/all_done.py
-  # Change the DISTCC_DIR to be somewhere that the parabuild process can write to
-  if test -r /etc/debian_version
-  then
-    [ x"$DISTCC_DIR" = x ] && export DISTCC_DIR=/var/tmp/parabuild
-    case `cat /etc/debian_version` in
-    3.*) [ x"$DISTCC_HOSTS" = x ]\
-         && export DISTCC_HOSTS="build-linux-1
-                                 build-linux-2
-                                 build-linux-3
-                                 build-linux-4
-                                 build-linux-5" ;;
-    4.*) [ x"$DISTCC_HOSTS" = x ]\
-         && export DISTCC_HOSTS="build-linux-6
-                                 build-linux-7
-                                 build-linux-8
-                                 build-linux-9" ;;
-    esac
-  fi
-
-  get_asset "$SLASSET_LIBS_LINUXI386"
-  ;;
-
-*) fail undefined $arch ;;
-esac
-
-get_asset "http://www.fmod.org/index.php/release/version/$fmod_tar"
-
-# Special case for Mac...
-case "$arch" in
-
-Darwin)
-  if lipo -create -output "../$fmod"/api/$fmod_lib/libfmod-universal.a\
-     "../$fmod"/api/$fmod_lib/libfmod.a\
-     "../$fmod"/api/$fmod_lib/libfmodx86.a
-  then
-    mv "../$fmod"/api/$fmod_lib/libfmod.a "../$fmod"/api/$fmod_lib/libfmodppc.a
-    mv "../$fmod"/api/$fmod_lib/libfmod-universal.a "../$fmod"/api/$fmod_lib/libfmod.a
-    echo Created fat binary
-  else
-    fail running lipo
-  fi
-  ;;
-
-esac
-
-# ensure helpers are up to date
-( cd "$helpers" && svn up )
-
-# First, go into the directory where the code was checked out by Parabuild
-cd indra
-
-# This is the way it works now, but it will soon work on a variant dependent way
-for target_dir in $target_dirs
-do
-  mkdir -p "../$target_dir"
-  cp -f "../../$fmod/api/$fmod_lib/$fmod_so"  "../$target_dir"
-done
-mkdir -p "../libraries/include"
-cp -f "../../$fmod/api/inc/"*  "../libraries/include"
-
-# Special Windows case
-test -r "../../$fmod/api/fmod.dll" && cp -f "../../$fmod/api/fmod.dll" newview
-
-# Now run the build command over all variants
-succeeded=true
-cp /dev/null build.log
-
-### TEST CODE - remove when done
-### variants=
-### echo "Artificial build failure to test notifications" > build.log
-### succeeded=false
-### END TEST CODE
-
-for variant in $variants
-do
-  build_dir=`build_dir_$arch $variant`
-  rm -rf "$build_dir"
-  # This is the way it will work in future
-  #for target_dir in $target_dirs
-  #do
-  #  mkdir -p "$build_dir/$target_dir"
-  #  cp "../../$fmod/api/$fmod_lib/$fmod_so"  "$build_dir/$target_dir"
-  #done
-  #mkdir -p "$build_dir/libraries/include"
-  #cp "../../$fmod/api/inc/"*  "$build_dir/libraries/include"
-  echo "==== $variant ====" >> build.log
-  if ./develop.py \
-    --unattended \
-    --incredibuild \
-    -t $variant \
-    -G "$cmake_generator" \
-   configure \
-    -DPACKAGE:BOOL=ON >>build.log 2>&1
-  then
-    if ./develop.py\
-         --unattended\
-         --incredibuild \
-         -t $variant\
-         -G "$cmake_generator" \
-       build package >>build.log 2>&1
-    then
-      # run tests if needed
-      true
-    else
-      succeeded=false
-    fi
-  else
-    succeeded=false
-  fi
-done
-
-# check statuis and upload results to S3
-subject=
-if $succeeded
-then
-  package=`installer_$arch`
-  test -r "$package" || fail not found: $package
-  package_file=`echo $package | sed 's:.*/::'`
-  if s3_available
-  then
-    echo "$PUBLIC_URL/$branch/$revision/$package_file" > "$arch"
-    echo "$PUBLIC_URL/$branch/$revision/good-build.$arch" >> "$arch"
-    "$helpers/s3put.sh" "$package" "$S3PUT_URL/$branch/$revision/$package_file"    binary/octet-stream\
-	   || fail Uploading "$package"
-    "$helpers/s3put.sh" build.log  "$S3PUT_URL/$branch/$revision/good-build.$arch" text/plain\
-	   || fail Uploading build.log
-    "$helpers/s3put.sh" "$arch"    "$S3PUT_URL/$branch/$revision/$arch"            text/plain\
-	   || fail Uploading token file
-    if python "$all_done"\
-          curl\
-         "$S3GET_URL/$branch/$revision/$arch"\
-          $other_archs > message
-    then
-      subject="Successful Build for $branch ($revision)"
-    fi
-  else
-    true s3 is not available
-  fi
-else
-  if s3_available
-  then
-    "$helpers/s3put.sh" build.log "$S3PUT_URL/$branch/$revision/failed-build.$arch" text/plain\
-	   || fail Uploading build.log
-    subject="Failed Build for $branch ($revision) on $arch"
-    cat >message <<EOF
-Build for $branch ($revision) failed for $arch.
-Please see the build log for details:
-
-$PUBLIC_URL/$branch/$revision/failed-build.$arch
-
-EOF
-  else
-    true s3 is not available
-  fi
-fi
-
-# We have something to say...
-if [ x"$subject" != x ]
-then
-  # Extract change list since last build
-  if [ x"$PARABUILD_CHANGE_LIST_NUMBER" = x ]
-  then
-    echo "No change information available" >> message
-  elif [ x"$PARABUILD_PREVIOUS_CHANGE_LIST_NUMBER" = x ]
-  then
-    ( cd .. && svn log --verbose --stop-on-copy --limit 50 ) >>message
-  else
-    ( cd .. && svn log --verbose -r"$PARABUILD_PREVIOUS_CHANGE_LIST_NUMBER":"$PARABUILD_CHANGE_LIST_NUMBER" ) >>message
-  fi
-  # $PUBLIC_EMAIL can be a list, so no quotes
-  python "$mail" "$subject" $PUBLIC_EMAIL <message
-fi
-
-if $succeeded
-then
-  pass
-else
-  fail
-fi
-
diff --git a/scripts/packages-formatter.py b/scripts/packages-formatter.py
index 7e5e690e49f12b548838f9f24eaa9de195046345..4e66cf9ed442dc6f21be6875b4e8d8a096a47a67 100755
--- a/scripts/packages-formatter.py
+++ b/scripts/packages-formatter.py
@@ -30,11 +30,7 @@
 import re
 import subprocess
 
-_autobuild=os.getenv('AUTOBUILD',
-                    'autobuild' if not ( sys.platform == 'win32' or sys.platform == 'cygwin')
-                    else 'autobuild.cmd')
-# HACK: temporarily work around cygwin /cygdrive/c madness
-_autobuild = re.sub(r"^/cygdrive/(.)/", r"\1:/", _autobuild)
+_autobuild=os.getenv('AUTOBUILD', 'autobuild')
 
 pkg_line=re.compile('^([\w-]+):\s+(.*)$')