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+# There is no clear way of keeping track of compiler command-line
+# options chosen via `add_definitions', so we need our own method for
+# using it on tools/llvm-config/CMakeLists.txt.
+
+# Beware that there is no implementation of remove_llvm_definitions.
+
+macro(add_llvm_definitions)
+ set(LLVM_DEFINITIONS "${LLVM_DEFINITIONS} ${ARGN}")
+ add_definitions( ${ARGN} )
+endmacro(add_llvm_definitions)
+