headers are copied after build / install

Author: kevinushey

.Rbuildignore

@@ -15,5 +15,5 @@
 ^tags$
 ^tests/testthat/pkg/RcppParallelTest/src/.*\.dll$
 ^tests/testthat/pkg/RcppParallelTest/src/.*\.s?o$
-
+^tools/tbb$
 ^\.github$

tools/config/cleanup.R

@@ -5,3 +5,8 @@
 unlink("src/tbb/build/lib_release", recursive = TRUE)
 unlink("inst/lib",  recursive = TRUE)
 unlink("inst/libs", recursive = TRUE)
+unlink("inst/include/index.html", recursive = TRUE)
+unlink("inst/include/oneapi", recursive = TRUE)
+unlink("inst/include/serial", recursive = TRUE)
+unlink("inst/include/tbb", recursive = TRUE)
+