(possibly fatal) check for Rcpp and RcppArmadillo now opt-in (closes #19) (#21)

* (possibly fatal) check for Rcpp and RcppArmadillo now opt-in

* Remove the header check

Co-authored-by: James J Balamuta <[email protected]>

Author: eddelbuettel

ChangeLog

@@ -1,7 +1,15 @@
+2019-01-14  James Balamuta  <[email protected]>
+
+	* inst/include/RcppEnsmallen.h: Removed header ordering checks
+
 2019-01-13  James Balamuta  <[email protected]>
 
 	* .github/workflows/pr-commands.yaml: Removed as its overly eager.
 
+2020-01-11  Dirk Eddelbuettel  <[email protected]>
+
+	* inst/include/RcppEnsmallen.h: Protected header inclusion check
+
 2019-12-30  James Balamuta  <[email protected]>
 
 	* DESCRIPTION (Version): Release 2.11.1

inst/include/RcppEnsmallen.h

@@ -18,10 +18,6 @@
 #ifndef RcppEnsmallen__RcppEnsmallen__h
 #define RcppEnsmallen__RcppEnsmallen__h
 
-#if defined(Rcpp_hpp) && defined(RcppArmadillo__RcppArmadillo__h)
-#error "Do not include either 'Rcpp.h' or 'RcppArmadillo.h'. Please only use 'RcppEnsmallen.h'."
-#endif
-
 // Enable RcppArmadillo and Rcpp
 #include <RcppArmadillo.h>