Refactor CMake configuration: separate RPT core library into its own CMakeLists.txt and streamline SWIG integration

CMakeLists.txt

@@ -12,5 +12,6 @@ set(CMAKE_CXX_STANDARD_REQUIRED ON)
 set(CMAKE_CXX_EXTENSIONS OFF)
 set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
 
-# Add the SWIG subdirectory
+# Add subdirectories
+add_subdirectory(rpt)
 add_subdirectory(swig)

rpt/CMakeLists.txt

@@ -0,0 +1,24 @@
+# RPT Core Library
+
+set(RPT_SOURCES
+    camera.cpp
+    interface.cpp
+    triangulator.cpp
+)
+
+add_library(rpt_core STATIC ${RPT_SOURCES})
+
+target_include_directories(rpt_core PUBLIC
+    ${CMAKE_CURRENT_SOURCE_DIR}
+)
+
+target_compile_options(rpt_core PRIVATE
+    -fPIC
+    -march=native
+    -Wall
+)
+
+# Release mode optimizations
+target_compile_options(rpt_core PRIVATE
+    $<$<CONFIG:Release>:-O3;-flto=auto>
+)

swig/CMakeLists.txt

@@ -7,19 +7,11 @@ find_package(Python3 REQUIRED COMPONENTS Development)
 # Include SWIG macros
 include(UseSWIG)
 
-# Compiler flags (matching original Makefile)
+# Compiler flags for SWIG wrapper
-set(RPT_COMPILE_FLAGS -fPIC -O3 -march=native -Wall -flto=auto)
+set(RPT_COMPILE_FLAGS -fPIC -march=native -Wall)
 
-# Create static library from rpt sources
+# Release mode optimizations
-set(RPT_SOURCES
+list(APPEND RPT_COMPILE_FLAGS $<$<CONFIG:Release>:-O3;-flto=auto>)
-    ${CMAKE_SOURCE_DIR}/rpt/camera.cpp
-    ${CMAKE_SOURCE_DIR}/rpt/interface.cpp
-    ${CMAKE_SOURCE_DIR}/rpt/triangulator.cpp
-)
-
-add_library(rpt_core STATIC ${RPT_SOURCES})
-target_include_directories(rpt_core PUBLIC ${CMAKE_SOURCE_DIR}/rpt)
-target_compile_options(rpt_core PRIVATE ${RPT_COMPILE_FLAGS})
 
 # SWIG interface
 set_property(SOURCE rpt.i PROPERTY CPLUSPLUS ON)
@@ -47,6 +39,5 @@ set_target_properties(rpt PROPERTIES
 
 # Ensure SWIG can find headers
 target_include_directories(rpt PRIVATE
-    ${CMAKE_SOURCE_DIR}/rpt
     ${Python3_INCLUDE_DIRS}
 )