Conditionally define R_NO_REMAP and STRICT_R_HEADERS

Author: DavisVaughan

inst/include/cpp11/R.hpp

@@ -8,8 +8,14 @@
 #endif
 #endif
 
+#ifndef R_NO_REMAP
 #define R_NO_REMAP
+#endif
+
+#ifndef STRICT_R_HEADERS
 #define STRICT_R_HEADERS
+#endif
+
 #include "R_ext/Boolean.h"
 #include "Rinternals.h"
 #include "Rversion.h"