Fixed a bug in the build script causing crash in XCode
diff --git a/Makefile.am b/Makefile.am
index 8622571..67c853e 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -34,6 +34,7 @@
   xcode/Config/ReleaseProject.xcconfig \
   xcode/Config/TestTarget.xcconfig \
   xcode/Config/InternalTestTarget.xcconfig \
+  xcode/Config/InternalPythonTestTarget.xcconfig \
   xcode/Resources/Info.plist \
   xcode/Scripts/versiongenerate.py \
   xcode/Scripts/runtests.sh \