feat: release build possibility

CMakeLists.txt

@@ -1,41 +1,43 @@
 cmake_minimum_required(VERSION 3.16)
 project(CodingGame LANGUAGES C CXX)
 
-if (UNIX)
-	include(FetchContent)
-	FetchContent_Declare(
-		glm
-		GIT_REPOSITORY	https://github.com/g-truc/glm.git
-		GIT_TAG 	bf71a834948186f4097caa076cd2663c69a10e1e #refs/tags/1.0.1
-	)
-	FetchContent_MakeAvailable(glm)
-
-	find_package(SDL3 REQUIRED CONFIG REQUIRED COMPONENTS SDL3-shared)
-	find_package(OpenGL REQUIRED)
-	find_package(GLEW REQUIRED)
-elseif (MSVC) # vcpkg
-	find_package(SDL3 CONFIG REQUIRED)
-	find_package(OpenGL REQUIRED)
-	find_package(GLEW CONFIG REQUIRED)
-	find_package(glm CONFIG REQUIRED)
+# ---------- Build-type defaults (only affects single-config generators like Ninja/Make) ----------
+if(NOT CMAKE_CONFIGURATION_TYPES AND NOT CMAKE_BUILD_TYPE)
+  set(CMAKE_BUILD_TYPE Release CACHE STRING "Choose the type of build." FORCE)
 endif()
 
-# Add -ggdb to debug builds
-# set(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -ggdb")
-# set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -ggdb")
+# ---------- Dependencies ----------
+if (UNIX)
+  include(FetchContent)
+  FetchContent_Declare(
+    glm
+    GIT_REPOSITORY https://github.com/g-truc/glm.git
+    GIT_TAG        bf71a834948186f4097caa076cd2663c69a10e1e # refs/tags/1.0.1
+  )
+  FetchContent_MakeAvailable(glm)
+
+  find_package(SDL3 REQUIRED CONFIG REQUIRED COMPONENTS SDL3-shared)
+  find_package(OpenGL REQUIRED)
+  find_package(GLEW REQUIRED)
+elseif (MSVC) # vcpkg
+  find_package(SDL3 CONFIG REQUIRED)
+  find_package(OpenGL REQUIRED)
+  find_package(GLEW CONFIG REQUIRED)
+  find_package(glm CONFIG REQUIRED)
+endif()
 
 add_executable(CodingGame
-	src/IO/parser.cpp
-	src/IO/file_manager.cpp
+  src/IO/parser.cpp
+  src/IO/file_manager.cpp
 
-	src/renderer/debug.cpp
-	src/renderer/basics.cpp
-	src/renderer/mesh.cpp
-	src/renderer/shader.cpp 
-	src/renderer/texture.cpp 
-	src/renderer/wavefront.cpp 
-	
-	src/main.cpp
+  src/renderer/debug.cpp
+  src/renderer/basics.cpp
+  src/renderer/mesh.cpp
+  src/renderer/shader.cpp
+  src/renderer/texture.cpp
+  src/renderer/wavefront.cpp
+
+  src/main.cpp
 )
 
 set_property(TARGET CodingGame PROPERTY CXX_STANDARD 17)
@@ -44,27 +46,73 @@ set_property(TARGET CodingGame PROPERTY CXX_STANDARD_REQUIRED ON)
 file(COPY src/shaders DESTINATION ${CMAKE_BINARY_DIR}/)
 
 target_include_directories(CodingGame PRIVATE
-	${CMAKE_SOURCE_DIR}/include
-	${CMAKE_SOURCE_DIR}/contrib
+  ${CMAKE_SOURCE_DIR}/include
+  ${CMAKE_SOURCE_DIR}/contrib
 )
 target_link_libraries(CodingGame PRIVATE
-	SDL3::SDL3
-	OpenGL::GL
-	GLEW::GLEW
-	glm::glm
+  SDL3::SDL3
+  OpenGL::GL
+  GLEW::GLEW
+  glm::glm
 )
 
-# Debug flags
+# ---------- Visibility (helps optimizer & smaller binaries on Release) ----------
+# Only affects non-Windows compilers
+set_target_properties(CodingGame PROPERTIES
+  CXX_VISIBILITY_PRESET hidden
+  VISIBILITY_INLINES_HIDDEN YES
+)
+
+# ---------- Per-config flags ----------
+# Debug flags (your original intent, kept)
 if (MSVC)
-	target_compile_options(CodingGame PRIVATE $<$<CONFIG:Debug>:/Zi>)
-	target_link_options(CodingGame PRIVATE $<$<CONFIG:Debug>:/DEBUG:FULL>)
+  target_compile_options(CodingGame PRIVATE $<$<CONFIG:Debug>:/Zi>)
+  target_link_options(CodingGame    PRIVATE $<$<CONFIG:Debug>:/DEBUG:FULL>)
 else()
-	target_compile_options(CodingGame PRIVATE $<$<CONFIG:Debug>:-ggdb>)
+  target_compile_options(CodingGame PRIVATE $<$<CONFIG:Debug>:-ggdb>)
 endif()
 
+# Release flags
+if (MSVC)
+  # /O2: optimize speed, /GL: whole program opt (LTCG), /DNDEBUG: disable asserts
+  target_compile_options(CodingGame PRIVATE
+    $<$<CONFIG:Release>:/O2>
+    $<$<CONFIG:Release>:/DNDEBUG>
+    $<$<CONFIG:RelWithDebInfo>:/O2>
+  )
+  # Link-time codegen & extra linker opts for smaller/faster binaries
+  target_link_options(CodingGame PRIVATE
+    $<$<CONFIG:Release>:/LTCG /OPT:ICF /OPT:REF>
+    $<$<CONFIG:RelWithDebInfo>:/LTCG /OPT:ICF /OPT:REF>
+  )
+else()
+  # GCC/Clang
+  # -O3 for max opts, -ffast-math optional but can be risky; we keep it OFF by default.
+  option(CODINGGAME_USE_MARCH_NATIVE "Enable -march=native on Release for this machine" ON)
+  target_compile_options(CodingGame PRIVATE
+    $<$<CONFIG:Release>:-O3>
+    $<$<AND:$<CONFIG:Release>,$<BOOL:${CODINGGAME_USE_MARCH_NATIVE}>>:-march=native>
+    $<$<CONFIG:Release>:-DNDEBUG>
+    $<$<CONFIG:RelWithDebInfo>:-O3 -g>
+  )
+  # Linker: enable LTO when available; optionally strip symbols on non-Apple
+  include(CheckIPOSupported)  # IPO == LTO in CMake terms
+  check_ipo_supported(RESULT ipo_supported OUTPUT ipo_msg)
+  if(ipo_supported)
+    set_property(TARGET CodingGame PROPERTY INTERPROCEDURAL_OPTIMIZATION_RELEASE TRUE)
+    set_property(TARGET CodingGame PROPERTY INTERPROCEDURAL_OPTIMIZATION_RELWITHDEBINFO TRUE)
+  endif()
+
+  if (CMAKE_CXX_COMPILER_ID STREQUAL "GNU" AND NOT APPLE)
+    # -s strips symbols at link stage (use only for pure Release)
+    target_link_options(CodingGame PRIVATE $<$<CONFIG:Release>:-s>)
+  endif()
+endif()
+
+# ---------- Windows: copy runtime DLLs ----------
 if (WIN32)
-	add_custom_command(TARGET CodingGame POST_BUILD
-		COMMAND ${CMAKE_COMMAND} -E copy_if_different
-			$<TARGET_RUNTIME_DLLS:CodingGame> $<TARGET_FILE_DIR:CodingGame>
-		COMMAND_EXPAND_LISTS)
+  add_custom_command(TARGET CodingGame POST_BUILD
+    COMMAND ${CMAKE_COMMAND} -E copy_if_different
+      $<TARGET_RUNTIME_DLLS:CodingGame> $<TARGET_FILE_DIR:CodingGame>
+    COMMAND_EXPAND_LISTS)
 endif()