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https://github.com/mod-playerbots/azerothcore-wotlk.git
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100 lines
3.4 KiB
CMake
100 lines
3.4 KiB
CMake
#
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# This file is part of the AzerothCore Project. See AUTHORS file for Copyright information
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#
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# This file is free software; as a special exception the author gives
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# unlimited permission to copy and/or distribute it, with or without
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# modifications, as long as this notice is preserved.
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#
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# This program is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY, to the extent permitted by law; without even the
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# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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#
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if ((USE_COREPCH OR USE_SCRIPTPCH) AND (CMAKE_C_COMPILER_LAUNCHER STREQUAL "ccache" OR CMAKE_CXX_COMPILER_LAUNCHER STREQUAL "ccache"))
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message(STATUS "Clang: disable pch timestamp when ccache and pch enabled")
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# TODO: for ccache https://github.com/ccache/ccache/issues/539
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Xclang -fno-pch-timestamp")
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endif()
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# Set build-directive (used in core to tell which buildtype we used)
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target_compile_definitions(acore-compile-option-interface
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INTERFACE
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-D_BUILD_DIRECTIVE="${CMAKE_BUILD_TYPE}")
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set(CLANG_EXPECTED_VERSION 10.0.0)
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if(CMAKE_CXX_COMPILER_VERSION VERSION_LESS CLANG_EXPECTED_VERSION)
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message(FATAL_ERROR "Clang: AzerothCore requires version ${CLANG_EXPECTED_VERSION} to build but found ${CMAKE_CXX_COMPILER_VERSION}")
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else()
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message(STATUS "Clang: Minimum version required is ${CLANG_EXPECTED_VERSION}, found ${CMAKE_CXX_COMPILER_VERSION} - ok!")
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endif()
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# This tests for a bug in clang-7 that causes linkage to fail for 64-bit from_chars (in some configurations)
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# If the clang requirement is bumped to >= clang-8, you can remove this check, as well as
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# the associated ifdef block in src/common/Utilities/StringConvert.h
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include(CheckCXXSourceCompiles)
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check_cxx_source_compiles("
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#include <charconv>
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#include <cstdint>
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int main()
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{
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uint64_t n;
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char const c[] = \"0\";
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std::from_chars(c, c+1, n);
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return static_cast<int>(n);
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}
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" CLANG_HAVE_PROPER_CHARCONV)
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if (NOT CLANG_HAVE_PROPER_CHARCONV)
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message(STATUS "Clang: Detected from_chars bug for 64-bit integers, workaround enabled")
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target_compile_definitions(acore-compile-option-interface
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INTERFACE
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-DACORE_NEED_CHARCONV_WORKAROUND)
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endif()
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if(WITH_WARNINGS)
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target_compile_options(acore-warning-interface
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INTERFACE
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-W
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-Wall
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-Wextra
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-Winit-self
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-Wfatal-errors
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-Wno-mismatched-tags
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-Woverloaded-virtual)
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message(STATUS "Clang: All warnings enabled")
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endif()
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if(WITH_COREDEBUG)
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target_compile_options(acore-compile-option-interface
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INTERFACE
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-g3)
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message(STATUS "Clang: Debug-flags set (-g3)")
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endif()
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# -Wno-narrowing needed to suppress a warning in g3d
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# -Wno-deprecated-register is needed to suppress gsoap warnings on Unix systems.
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target_compile_options(acore-compile-option-interface
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INTERFACE
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-Wno-narrowing
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-Wno-deprecated-register)
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if(BUILD_SHARED_LIBS)
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# -fPIC is needed to allow static linking in shared libs.
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# -fvisibility=hidden sets the default visibility to hidden to prevent exporting of all symbols.
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target_compile_options(acore-compile-option-interface
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INTERFACE
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-fPIC)
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target_compile_options(acore-hidden-symbols-interface
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INTERFACE
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-fvisibility=hidden)
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# --no-undefined to throw errors when there are undefined symbols
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# (caused through missing WARHEAD_*_API macros).
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set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} --no-undefined")
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message(STATUS "Clang: Disallow undefined symbols")
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endif()
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