Add modules needed by Distributed

Author: edymtt

Runtimes/Supplemental/cmake/modules/CxxStandard.cmake

@@ -0,0 +1,17 @@
+# Use C++17
+set(${PROJECT_NAME}_MIN_CXX_STANDARD 17)
+# Unset CMAKE_CXX_STANDARD if it's too low and in the CMakeCache.txt
+if($CACHE{CMAKE_CXX_STANDARD} AND $CACHE{CMAKE_CXX_STANDARD} LESS ${${PROJECT_NAME}_MIN_CXX_STANDARD})
+  message(WARNING "Resetting cache value for CMAKE_CXX_STANDARD to ${${PROJECT_NAME}_MIN_CXX_STANDARD}")
+  unset(CMAKE_CXX_STANDARD CACHE)
+endif()
+
+# Allow manually specified CMAKE_CXX_STANDARD if it's greater than the minimum
+# required C++ version
+if(DEFINED CMAKE_CXX_STANDARD AND CMAKE_CXX_STANDARD LESS ${${PROJECT_NAME}_MIN_CXX_STANDARD})
+  message(FATAL_ERROR "Requested CMAKE_CXX_STANDARD=${CMAKE_CXX_STANDARD} which is less than the minimum C++ standard ${${PROJECT_NAME}_MIN_CXX_STANDARD}")
+endif()
+
+set(CMAKE_CXX_STANDARD ${${PROJECT_NAME}_MIN_CXX_STANDARD} CACHE STRING "C++ standard to conform to")
+set(CMAKE_CXX_STANDARD_REQUIRED YES)
+set(CMAKE_CXX_EXTENSIONS NO)

Runtimes/Supplemental/cmake/modules/SwiftCallingConventions.cmake

@@ -0,0 +1,28 @@
+include(CheckSourceCompiles)
+include(CheckCompilerFlag)
+
+check_source_compiles(CXX
+"#if !(__has_attribute(swiftcall) && \
+  __has_attribute(swift_context) && \
+  __has_attribute(swift_error_result) && \
+  __has_attribute(swift_indirect_result))
+#error CXX compiler must support Swift calling conventions
+#endif
+int main(void) { return 0; }"
+HAVE_SWIFTCALL)
+
+if(NOT HAVE_SWIFTCALL)
+  message(SEND_ERROR "CXX Compiler must support Swift calling conventions")
+endif()
+
+check_source_compiles(CXX
+"#if !(__has_attribute(swiftasynccall) && \
+  __has_attribute(swift_async_context))
+#error CXX compiler must support Swift async calling conventions
+#endif
+int main(void) { return 0; }"
+HAVE_SWIFT_ASYNC_CALL)
+
+if(NOT HAVE_SWIFT_ASYNC_CALL)
+  message(SEND_ERROR "CXX Compiler must support Swift async calling conventions")
+endif()