+// Define if callstack can be printed
+#cmakedefine LYX_CALLSTACK_PRINTING 1
+
+// Define if std::string uses copy-on-write
+#cmakedefine STD_STRING_USES_COW 1
+
+// use libc++ provided by llvm instead of GNU libstdc++
+#cmakedefine USE_LLVM_LIBCPP 1
+
+#cmakedefine Z_PREFIX 1
+
+${Include_used_spellchecker}