diff --git a/src/openalpr/CMakeLists.txt b/src/openalpr/CMakeLists.txt
index 79097cc..2b5f3ea 100644
--- a/src/openalpr/CMakeLists.txt
+++ b/src/openalpr/CMakeLists.txt
@@ -23,12 +23,17 @@ set(lpr_source_files
  verticalhistogram.cpp
  trex.c
  cjson.c
+ tinythread/tinythread.cpp
 )
 
  
+
+add_subdirectory(simpleini)
+add_subdirectory(support)
+
+
 add_library(openalpr ${lpr_source_files})
 
 
-
-add_subdirectory(simpleini)
-add_subdirectory(support)
\ No newline at end of file
+# Add definition for default runtime dir
+add_definitions(-DDEFAULT_RUNTIME_DIR="${CMAKE_SOURCE_DIR}/../runtime_data/")
\ No newline at end of file
diff --git a/src/openalpr/linux_dev.h b/src/openalpr/linux_dev.h
index 8468d96..84689c8 100644
--- a/src/openalpr/linux_dev.h
+++ b/src/openalpr/linux_dev.h
@@ -22,7 +22,10 @@
 #define CASCADE_DIR		"/region/"
 #define POSTPROCESS_DIR		"/postprocess"
 
-#define DEFAULT_RUNTIME_DIR 	"/home/mhill/projects/alpr/runtime_data"
+#ifndef DEFAULT_RUNTIME_DIR
+  #define DEFAULT_RUNTIME_DIR 	"/default_runtime_data_dir/"
+#endif
+
 #define ENV_VARIABLE_RUNTIME_DIR "OPENALPR_RUNTIME_DIR"