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mdbx: minor fixes/workarounds for CLANG < 9.x

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This commit is contained in:
Leonid Yuriev 2021-08-04 14:09:50 +03:00
parent a9cae5e314
commit 4bb0c57e29
2 changed files with 16 additions and 7 deletions
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20
CMakeLists.txt
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@ -232,8 +232,13 @@ else()
endif()
if(CMAKE_INTERPROCEDURAL_OPTIMIZATION_AVAILABLE
OR GCC_LTO_AVAILABLE OR MSVC_LTO_AVAILABLE OR CLANG_LTO_AVAILABLE)
OR GCC_LTO_AVAILABLE OR MSVC_LTO_AVAILABLE OR
(CLANG_LTO_AVAILABLE AND
((DEFINED MDBX_ENABLE_TESTS AND NOT MDBX_ENABLE_TESTS)
OR NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 4.0)))
option(INTERPROCEDURAL_OPTIMIZATION "Enable interprocedural/LTO optimization" ${INTERPROCEDURAL_OPTIMIZATION_DEFAULT})
else()
set(INTERPROCEDURAL_OPTIMIZATION OFF)
endif()
if(INTERPROCEDURAL_OPTIMIZATION)
@ -332,9 +337,11 @@ list(FIND CMAKE_CXX_COMPILE_FEATURES cxx_std_20 HAS_CXX20)
if(NOT DEFINED MDBX_CXX_STANDARD)
if(DEFINED CMAKE_CXX_STANDARD)
set(MDBX_CXX_STANDARD ${CMAKE_CXX_STANDARD})
elseif(NOT HAS_CXX20 LESS 0)
elseif(NOT HAS_CXX20 LESS 0
AND NOT (CMAKE_COMPILER_IS_CLANG AND CMAKE_CXX_COMPILER_VERSION VERSION_LESS 9))
set(MDBX_CXX_STANDARD 20)
elseif(NOT HAS_CXX17 LESS 0)
elseif(NOT HAS_CXX17 LESS 0
AND NOT (CMAKE_COMPILER_IS_CLANG AND CMAKE_CXX_COMPILER_VERSION VERSION_LESS 5))
set(MDBX_CXX_STANDARD 17)
elseif(NOT HAS_CXX14 LESS 0)
set(MDBX_CXX_STANDARD 14)
@ -487,7 +494,7 @@ if(CMAKE_CXX_COMPILER_LOADED AND MDBX_CXX_STANDARD GREATER_EQUAL 11 AND MDBX_CXX
endif()
if(NOT MDBX_WITHOUT_MSVC_CRT
AND NOT (CMAKE_COMPILER_IS_GNUCXX AND CMAKE_CXX_COMPILER_VERSION VERSION_LESS 4.8)
AND NOT (CMAKE_COMPILER_IS_CLANG AND CMAKE_CXX_COMPILER_VERSION VERSION_LESS 4)
AND NOT (CMAKE_COMPILER_IS_CLANG AND CMAKE_CXX_COMPILER_VERSION VERSION_LESS 3.9)
AND NOT (MSVC AND MSVC_VERSION LESS 1900))
option(MDBX_BUILD_CXX "Build C++ portion" ON)
else()
@ -564,7 +571,8 @@ macro(target_setup_options TARGET)
target_compile_options(${TARGET} INTERFACE "/Zc:__cplusplus")
endif()
endif()
if(CC_HAS_FASTMATH)
if(CC_HAS_FASTMATH
AND NOT (CMAKE_COMPILER_IS_CLANG AND CMAKE_CXX_COMPILER_VERSION VERSION_LESS 10))
target_compile_options(${TARGET} PRIVATE "-ffast-math")
endif()
if(CC_HAS_VISIBILITY)
@ -587,7 +595,7 @@ macro(libmdbx_setup_libs TARGET MODE)
elseif(${CMAKE_SYSTEM_NAME} STREQUAL "Android")
target_link_libraries(${TARGET} ${MODE} log)
endif()
if(LIBCXX_FILESYSTEM AND MDBX_BUILD_CXX)
if(MDBX_CXX_STANDARD GREATER_EQUAL 17 AND LIBCXX_FILESYSTEM AND MDBX_BUILD_CXX)
target_link_libraries(${TARGET} ${MODE} ${LIBCXX_FILESYSTEM})
endif()
endmacro()

3
mdbx.h
View File

@ -461,7 +461,8 @@ typedef mode_t mdbx_mode_t;
#endif /* MDBX_PRINTF_ARGS */
#if defined(DOXYGEN) || \
(defined(__cplusplus) && __has_cpp_attribute(maybe_unused) && \
(defined(__cplusplus) && __cplusplus >= 201603 && \
__has_cpp_attribute(maybe_unused) && \
__has_cpp_attribute(maybe_unused) >= 201603) || \
(!defined(__cplusplus) && defined(__STDC_VERSION__) && \
__STDC_VERSION__ > 202005L)