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include(CheckCCompilerFlag)
set(WT_ARCH "riscv64" CACHE STRING "")
set(WT_OS "linux" CACHE STRING "")
set(WT_POSIX ON CACHE BOOL "")
# Linux requires '_GNU_SOURCE' to be defined for access to GNU/Linux extension functions
# e.g. Access to O_DIRECT on Linux. Append this macro to our compiler flags for Linux-based
# builds.
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -D_GNU_SOURCE" CACHE STRING "" FORCE)
# Linux requires buffers aligned to 4KB boundaries for O_DIRECT to work.
set(WT_BUFFER_ALIGNMENT_DEFAULT "4096" CACHE STRING "")
# See https://www.sifive.com/blog/all-aboard-part-1-compiler-args
# for background on the `rv64imafdc` and `lp64d` arguments here.
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -march=rv64imafdc -mabi=lp64d" CACHE STRING "" FORCE)
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