rules_apple.patch

diff --git i/tools/environment_plist/environment_plist.sh w/tools/environment_plist/environment_plist.sh
index 61b3733..1dd0103 100755
--- i/tools/environment_plist/environment_plist.sh
+++ w/tools/environment_plist/environment_plist.sh
@@ -79,14 +79,12 @@ xcode_version_string=$(echo "${xcodebuild_version_output}" | grep Xcode | cut -d
 # Converts '7.1' -> 0710, and '7.1.1' -> 0711.
 xcode_version=$(/usr/bin/printf '%02d%d%d\n' $(echo "${xcode_version_string//./ }"))
 
-/usr/libexec/PlistBuddy \
-    -c "Add :DTPlatformBuild string ${platform_build:-""}" \
-    -c "Add :DTSDKBuild string ${sdk_build:-""}" \
-    -c "Add :DTPlatformVersion string ${platform_version:-""}" \
-    -c "Add :DTXcode string ${xcode_version:-""}" \
-    -c "Add :DTXcodeBuild string ${xcode_build:-""}" \
-    -c "Add :DTCompiler string ${compiler:-""}" \
-    -c "Add :BuildMachineOSBuild string ${os_build:-""}" \
-    "$PLIST" > /dev/null
+/usr/libexec/PlistBuddy -c "Add :DTPlatformBuild string ${platform_build:-""}" "$PLIST" > /dev/null
+/usr/libexec/PlistBuddy -c "Add :DTSDKBuild string ${sdk_build:-""}" "$PLIST" > /dev/null
+/usr/libexec/PlistBuddy -c "Add :DTPlatformVersion string ${platform_version:-""}" "$PLIST" > /dev/null
+/usr/libexec/PlistBuddy -c "Add :DTXcode string ${xcode_version:-""}" "$PLIST" > /dev/null
+/usr/libexec/PlistBuddy -c "Add :DTXcodeBuild string ${xcode_build:-""}" "$PLIST" > /dev/null
+/usr/libexec/PlistBuddy -c "Add :DTCompiler string ${compiler:-""}" "$PLIST" > /dev/null
+/usr/libexec/PlistBuddy -c "Add :BuildMachineOSBuild string ${os_build:-""}" "$PLIST" > /dev/null
 
 plutil -convert binary1 -o "${OUTPUT}" -s  -- "${PLIST}"