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CMake: add SNMALLOC_USE_CXX20 option

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Nathaniel Filardo
2021-04-21 12:23:25 +01:00
committed by Nathaniel Wesley Filardo
parent 80c6e95210
commit 71db09423f
1 changed files with 6 additions and 1 deletions
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7
CMakeLists.txt
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@@ -19,6 +19,7 @@ option(SNMALLOC_QEMU_WORKAROUND "Disable using madvise(DONT_NEED) to zero memory
option(SNMALLOC_OPTIMISE_FOR_CURRENT_MACHINE "Compile for current machine architecture" Off)
set(CACHE_FRIENDLY_OFFSET OFF CACHE STRING "Base offset to place linked-list nodes.")
set(SNMALLOC_STATIC_LIBRARY_PREFIX "sn_" CACHE STRING "Static library function prefix")
option(SNMALLOC_USE_CXX20 "Build as C++20, not C++17; experimental as yet" OFF)
# malloc.h will error if you include it on FreeBSD, so this test must not
# unconditionally include it.
@@ -138,7 +139,11 @@ if (CMAKE_CXX_COMPILER_ID MATCHES "Clang")
endif ()
# Have to set this globally, as can't be set on an interface target.
set(CMAKE_CXX_STANDARD 17)
if(SNMALLOC_USE_CXX20)
set(CMAKE_CXX_STANDARD 20)
else()
set(CMAKE_CXX_STANDARD 17)
endif()
if(USE_SNMALLOC_STATS)
target_compile_definitions(snmalloc_lib INTERFACE -DUSE_SNMALLOC_STATS)