diff --git a/CMakeLists.txt b/CMakeLists.txt
index 3ee6606..48e300e 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -6,8 +6,10 @@ project(color)
 set(CMAKE_CXX_STANDARD 11)
 set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
 
-add_library(color SHARED src/color.cpp src/conversion.cpp src/CIEDE2000.cpp)
-target_include_directories(color PUBLIC include)
+find_library(PythonLibs 3)
+
+add_library(color SHARED src/debug.cpp src/conversion.cpp src/CIEDE2000.cpp)
+target_include_directories(color PUBLIC include PRIVATE ${PYTHON_INCLUDE_DIR})
 
 add_executable(testCIEDE2000 test/testCIEDE2000.cpp)
 target_link_libraries(testCIEDE2000 color)
diff --git a/include/color.h b/include/color.h
index 55ebc55..4528a1a 100644
--- a/include/color.h
+++ b/include/color.h
@@ -9,10 +9,6 @@
 
 #include <ostream>
 
-#ifndef M_PI
-#define M_PI 3.14159265358979323846264338327950288 /* pi */
-#endif
-
 namespace color {
 /** A color in CIELAB colorspace */
 struct LAB {
diff --git a/src/color.cpp b/src/debug.cpp
similarity index 100%
rename from src/color.cpp
rename to src/debug.cpp