diff --git a/envsetup.sh b/envsetup.sh
index 6611553..a65d39b 100644
--- a/envsetup.sh
+++ b/envsetup.sh
@@ -95,19 +95,34 @@
     #                                                                #
     ##################################################################
 
+    # Note: on windows/cygwin, ANDROID_BUILD_PATHS will contain spaces
+    # due to "C:\Program Files" being in the path.
+
     # out with the old
-    if [ -n $ANDROID_BUILD_PATHS ] ; then
+    if [ -n "$ANDROID_BUILD_PATHS" ] ; then
         export PATH=${PATH/$ANDROID_BUILD_PATHS/}
     fi
-    if [ -n $ANDROID_PRE_BUILD_PATHS ] ; then
+    if [ -n "$ANDROID_PRE_BUILD_PATHS" ] ; then
         export PATH=${PATH/$ANDROID_PRE_BUILD_PATHS/}
     fi
 
     # and in with the new
     CODE_REVIEWS=
     prebuiltdir=$(getprebuilt)
-    export ANDROID_EABI_TOOLCHAIN=$prebuiltdir/toolchain/arm-linux-androideabi-4.4.x/bin
-    export ARM_EABI_TOOLCHAIN=$prebuiltdir/toolchain/arm-eabi-4.4.3/bin
+
+    # The gcc toolchain does not exists for windows/cygwin. In this case, do not reference it.
+    export ANDROID_EABI_TOOLCHAIN=
+    toolchaindir=toolchain/arm-linux-androideabi-4.4.x/bin
+    if [ -d "$prebuiltdir/$toolchaindir" ]; then
+        export ANDROID_EABI_TOOLCHAIN=$prebuiltdir/$toolchaindir
+    fi
+
+    export ARM_EABI_TOOLCHAIN=
+    toolchaindir=toolchain/arm-eabi-4.4.3/bin
+    if [ -d "$prebuiltdir/$toolchaindir" ]; then
+        export ARM_EABI_TOOLCHAIN=$prebuiltdir/$toolchaindir
+    fi
+
     export ANDROID_TOOLCHAIN=$ANDROID_EABI_TOOLCHAIN
     export ANDROID_QTOOLS=$T/development/emulator/qtools
     export ANDROID_BUILD_PATHS=:$(get_build_var ANDROID_BUILD_PATHS):$ANDROID_QTOOLS:$ANDROID_TOOLCHAIN:$ARM_EABI_TOOLCHAIN$CODE_REVIEWS