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--- cmake/os/FreeBSD.cmake.orig 2023-10-19 12:05:28 UTC
+++ cmake/os/FreeBSD.cmake
@@ -48,6 +48,20 @@ IF(NOT FORCE_UNSUPPORTED_COMPILER)
IF(CMAKE_CXX_COMPILER_VERSION VERSION_LESS 7.1)
MESSAGE(FATAL_ERROR "GCC 7.1 or newer is required")
ENDIF()
+ CHECK_C_SOURCE_RUNS("
+ int main()
+ {
+ return (__clang_major__ >= 4);
+ }" I386_ATOMIC_BUILTINS)
+ IF((CMAKE_SYSTEM_PROCESSOR MATCHES "i386") AND (NOT I386_ATOMIC_BUILTINS))
+ SET(HAVE_GCC_ATOMIC_BUILTINS CACHE INTERNAL "")
+ ENDIF()
+ ELSEIF(CMAKE_COMPILER_IS_GNUCC)
+ EXECUTE_PROCESS(COMMAND ${CMAKE_C_COMPILER} -dumpversion
+ OUTPUT_VARIABLE GCC_VERSION)
+ IF(GCC_VERSION VERSION_LESS 4.4)
+ MESSAGE(FATAL_ERROR "GCC 4.4 or newer is required!")
+ ENDIF()
ELSE()
MESSAGE(FATAL_ERROR "Unsupported compiler!")
ENDIF()
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