CMakeの新しい機能をもちいてコンパイル/リンクフラグの管理をする

CMAKE_MSVC_RUNTIME_LIBRARYを受け入れる3.15を下限のバージョンとする。

CMakeLists.txt

@@ -1,14 +1,13 @@
-cmake_minimum_required(VERSION 3.1)
+cmake_minimum_required(VERSION 3.15)
 
 if(CMAKE_VERSION VERSION_GREATER 3.21)
 	cmake_policy(SET CMP0128 NEW)
 endif()
 if(CMAKE_VERSION VERSION_GREATER 3.15)
 	cmake_policy(SET CMP0091 NEW)
 endif()
-if(CMAKE_VERSION VERSION_GREATER 3.1)
-	cmake_policy(SET CMP0054 NEW)
-endif()
+cmake_policy(SET CMP0054 NEW)
+cmake_policy(SET CMP0063 NEW)
 
 set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_SOURCE_DIR}/cmake")
 set(CMAKE_CONFIGURATION_TYPES "Debug;Release" CACHE INTERNAL "limit build types" FORCE)
@@ -77,37 +76,28 @@ set(ARIBB25_VERSION_STRING ${ARIBB25_VERSION_NUMBER})
 # ---------- define flags ----------
 
 if(CMAKE_C_COMPILER_ID MATCHES "(GNU|Clang)")
-	set(CMAKE_C_FLAGS "-Wall")
-	set(CMAKE_C_FLAGS_DEBUG "-O2 -g")
-	set(CMAKE_C_FLAGS_RELEASE "-O2")
-	set(CMAKE_CXX_FLAGS "-Wall")
-	set(CMAKE_CXX_FLAGS_DEBUG "-O3 -g")
-	set(CMAKE_CXX_FLAGS_RELEASE "-O3")
-	set(CMAKE_SHARED_LINKER_FLAGS "-fvisibility=hidden")
+	set(CMAKE_C_VISIBILITY_PRESET "hidden")
+	set(CMAKE_CXX_VISIBILITY_PRESET "hidden")
 
 	if(UNIX AND NOT CYGWIN)
 		include(ElfInterp)
-		set(CMAKE_C_FLAGS   "-fPIC ${CMAKE_C_FLAGS}")
-		set(CMAKE_CXX_FLAGS "-fPIC ${CMAKE_CXX_FLAGS}")
+		set(CMAKE_POSITION_INDEPENDENT_CODE ON)
 		if(NOT APPLE)
-			set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -Wl,-eshow_version")
+			add_link_options("-Wl,-eshow_version")
 		endif()
 	else(MINGW)
-		set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -Wl,--enable-stdcall-fixup -static-libgcc")
+		add_link_options("-Wl,--enable-stdcall-fixup" "-static-libgcc")
 	endif()
 
 	if(MINGW AND USE_UNICODE)
-		set(CMAKE_C_FLAGS   "-municode ${CMAKE_C_FLAGS}")
-		set(CMAKE_CXX_FLAGS "-municode ${CMAKE_CXX_FLAGS}")
+		add_link_options("-municode")
 	endif()
 
 	if(USE_AVX2)
-		set(CMAKE_C_FLAGS   "-mavx2 ${CMAKE_C_FLAGS}")
-		set(CMAKE_CXX_FLAGS "-mavx2 ${CMAKE_CXX_FLAGS}")
+		add_compile_options("-mavx2")
 	endif()
 	if(USE_NEON)
-		set(CMAKE_C_FLAGS   "-mfpu=neon ${CMAKE_C_FLAGS}")
-		set(CMAKE_CXX_FLAGS "-mfpu=neon ${CMAKE_CXX_FLAGS}")
+		add_compile_options("-mfpu=neon")
 	endif()
 elseif(CMAKE_C_COMPILER_ID MATCHES "MSVC")
 	add_definitions("-D_CRT_SECURE_NO_WARNINGS")
@@ -116,8 +106,7 @@ elseif(CMAKE_C_COMPILER_ID MATCHES "MSVC")
 
 	if(USE_AVX2)
 		add_definitions("-DENABLE_MULTI2_SIMD")
-		set(CMAKE_C_FLAGS   "/arch:AVX2 ${CMAKE_C_FLAGS}")
-		set(CMAKE_CXX_FLAGS "/arch:AVX2 ${CMAKE_CXX_FLAGS}")
+		add_compile_options("/arch:AVX2")
 	endif()
 endif()
 
@@ -139,9 +128,9 @@ link_directories(${PCSC_LIBRARY_DIRS})
 # ---------- libaribb1 ----------
 
 if(WIN32 AND NOT CMAKE_SYSTEM_PROCESSOR MATCHES "(ARM|ARM64|AARCH64)")
-add_library(aribb1-objlib OBJECT aribb25/arib_std_b25.c aribb25/b_cas_card.c aribb25/multi2.c aribb25/multi2_simd.c aribb25/ts_section_parser.c aribb25/version_b1.c)
+	add_library(aribb1-objlib OBJECT aribb25/arib_std_b25.c aribb25/b_cas_card.c aribb25/multi2.c aribb25/multi2_simd.c aribb25/ts_section_parser.c aribb25/version_b1.c)
 else()
-add_library(aribb1-objlib OBJECT aribb25/arib_std_b25.c aribb25/b_cas_card.c aribb25/multi2.cc aribb25/ts_section_parser.c aribb25/version_b1.c)
+	add_library(aribb1-objlib OBJECT aribb25/arib_std_b25.c aribb25/b_cas_card.c aribb25/multi2.cc aribb25/ts_section_parser.c aribb25/version_b1.c)
 endif()
 set_target_properties(aribb1-objlib PROPERTIES COMPILE_DEFINITIONS ARIBB1_DLL)
 target_compile_definitions(aribb1-objlib PRIVATE ENABLE_ARIB_STD_B1)
@@ -187,9 +176,9 @@ configure_file(aribb25/version_b1.rc.in version_b1.rc @ONLY)
 # ---------- libaribb25 ----------
 
 if(WIN32 AND NOT CMAKE_SYSTEM_PROCESSOR MATCHES "(ARM|ARM64|AARCH64)")
-add_library(aribb25-objlib OBJECT aribb25/arib_std_b25.c aribb25/b_cas_card.c aribb25/multi2.c aribb25/multi2_simd.c aribb25/ts_section_parser.c aribb25/version_b25.c)
+	add_library(aribb25-objlib OBJECT aribb25/arib_std_b25.c aribb25/b_cas_card.c aribb25/multi2.c aribb25/multi2_simd.c aribb25/ts_section_parser.c aribb25/version_b25.c)
 else()
-add_library(aribb25-objlib OBJECT aribb25/arib_std_b25.c aribb25/b_cas_card.c aribb25/multi2.cc aribb25/ts_section_parser.c aribb25/version_b25.c)
+	add_library(aribb25-objlib OBJECT aribb25/arib_std_b25.c aribb25/b_cas_card.c aribb25/multi2.cc aribb25/ts_section_parser.c aribb25/version_b25.c)
 endif()
 set_target_properties(aribb25-objlib PROPERTIES COMPILE_DEFINITIONS ARIBB25_DLL)