diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..9e1c8c5
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,4 @@
+build/
+example/ot_parser
+example/sample_parser
+unittest/regression
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 80e4db9..eed48fa 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -12,6 +12,7 @@ set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -O2")
 
 # add the binary tree to the search path for include files
 include_directories(${PROJECT_SOURCE_DIR})
+include_directories(${CMAKE_CURRENT_BINARY_DIR})
 include_directories(parser-verilog)