diff --git a/cleanup b/cleanup
new file mode 100755
index 0000000..37bbb3a
--- /dev/null
+++ b/cleanup
@@ -0,0 +1,5 @@
+#!/bin/sh
+rm -f src/Makevars
+rm -f config.* 
+rm -f src/Makevars.win
+rm -f inst/include/*.gch
diff --git a/cleanup.win b/cleanup.win
new file mode 100755
index 0000000..8e6ff58
--- /dev/null
+++ b/cleanup.win
@@ -0,0 +1,5 @@
+#!/bin/sh
+
+rm -f src/Makevars.win
+rm -f src/Makevars
+rm -f inst/include/*.gch
diff --git a/inst/tools/workaround.R b/inst/tools/workaround.R
index 0f115b3..ed779f8 100644
--- a/inst/tools/workaround.R
+++ b/inst/tools/workaround.R
@@ -15,13 +15,11 @@
             .in)
 
 if (.Platform$OS.type == "windows" && !file.exists("src/Makevars.win")) {
-  .in <- gsub("@CXX14STD@", "-std=c++1y", .in)
   file.out <- file("src/Makevars.win", "wb")
   writeLines(gsub("@ISYSTEM@", "I", .in),
              file.out)
   close(file.out)
 } else {
-  .in <- gsub("@CXX14STD@", "-std=gnu++14", .in)
   file.out <- file("src/Makevars", "wb")
   writeLines(gsub("@ISYSTEM@", "isystem", .in),
              file.out)