diff --git a/src/optional/R/Makefile b/src/optional/R/Makefile
new file mode 100644
index 00000000..bba213db
--- /dev/null
+++ b/src/optional/R/Makefile
@@ -0,0 +1,11 @@
+all:
+	cd gnuparallel && md5sum DESCRIPTION NAMESPACE R/gnuparallel.R man/gnuparallel-package.Rd > MD5
+	R CMD check --as-cran gnuparallel
+	R CMD build gnuparallel
+	R CMD INSTALL --build gnuparallel_0.1.tar.gz
+	R CMD check gnuparallel
+labeling:
+	R CMD build labeling
+	R CMD INSTALL --build labeling_0.2.tar.gz
+	R CMD check labeling
+
diff --git a/src/optional/R/gnuparallel/MD5 b/src/optional/R/gnuparallel/MD5
index 5473615e..ad39efa5 100644
--- a/src/optional/R/gnuparallel/MD5
+++ b/src/optional/R/gnuparallel/MD5
@@ -1,4 +1,4 @@
 c521738aeecfa8e237500f4a3263143e  DESCRIPTION
 d008be14407ccaa1070b98ed7d91c123  NAMESPACE
-57ae71c1e7b6c2ad3069230cccb19f59  R/gnuparallel.R
-b0f1fb891f37499b06b41754b394f1ae  man/gnuparallel-package.Rd
+beb1ce7a813ec211acd651e66a397a7b  R/gnuparallel.R
+a6f75c33282b61a2efe54c70e8a52c39  man/gnuparallel-package.Rd
diff --git a/src/optional/R/gnuparallel/R/gnuparallel.R b/src/optional/R/gnuparallel/R/gnuparallel.R
index b26ea3f3..f68ed168 100644
--- a/src/optional/R/gnuparallel/R/gnuparallel.R
+++ b/src/optional/R/gnuparallel/R/gnuparallel.R
@@ -43,7 +43,7 @@
 #' \code{\link{gnu.parallel.load.lines}}
 #' @examples
 #' library(gnuparallel)
-#' system("parallel --header : --results foobar printf out{1}\\\\\\\\tout{2}\\\\\\\\nline2{1}\\\\\\\\t{2}\\\\\\\\n ::: letters a b c ::: numbers 4 5 6")
+#' system("parallel --results foobar printf out{1}\\\\\\\\tout{2}\\\\\\\\nline2{1}\\\\\\\\t{2}\\\\\\\\n ::: a b c ::: 4 5 6")
 #' fn <- gnu.parallel.filenames("foobar")
 #' gnu.parallel.load(fn)
 #' gnu.parallel.load.lines(fn)
@@ -54,7 +54,7 @@ c()
 
 #' Find the filenames in a results dir
 #'
-#' @param resdir results dir from GNU Parallel's --results
+#' @param resdir results dir from GNU Parallel's -{}-results
 #' @return filenametable with a column for each of GNU Parallel's input sources and a column for file name of both stdout and stderr
 #' @export
 gnu.parallel.filenames <- function(resdir) {
diff --git a/src/optional/R/gnuparallel/man/gnu.parallel.filenames.Rd b/src/optional/R/gnuparallel/man/gnu.parallel.filenames.Rd
index 27f7a40e..751cafd6 100644
--- a/src/optional/R/gnuparallel/man/gnu.parallel.filenames.Rd
+++ b/src/optional/R/gnuparallel/man/gnu.parallel.filenames.Rd
@@ -5,7 +5,7 @@
   gnu.parallel.filenames(resdir)
 }
 \arguments{
-  \item{resdir}{results dir from GNU Parallel's --results}
+  \item{resdir}{results dir from GNU Parallel's ---results}
 }
 \value{
   filenametable with a column for each of GNU Parallel's input sources
diff --git a/src/optional/R/gnuparallel/man/gnuparallel-package.Rd b/src/optional/R/gnuparallel/man/gnuparallel-package.Rd
index 398119ca..c482d989 100644
--- a/src/optional/R/gnuparallel/man/gnuparallel-package.Rd
+++ b/src/optional/R/gnuparallel/man/gnuparallel-package.Rd
@@ -4,7 +4,7 @@
 \alias{gnuparallel-package}
 \title{GNU Parallel}
 \description{
-  Loading of GNU Parallel --results output
+  Loading of GNU Parallel -{}-results output
 }
 \details{
   \tabular{ll}{ Package: \tab gnuparallel\cr Type: \tab
@@ -15,7 +15,9 @@
 }
 \examples{
 library(gnuparallel)
-system("parallel --header : --results foobar printf out{1}\\\\\\\\tout{2}\\\\\\\\nline2{1}\\\\\\\\t{2}\\\\\\\\n ::: letters a b c ::: numbers 4 5 6")
+system(paste("parallel --header : --results foobar",
+   "printf out{let}\\\\\\\\\\\\\\\\tout{num}\\\\\\\\\\\\\\\\nline2{let}\\\\\\\\\\\\\\\\t{num}\\\\\\\\\\\\\\\\n",
+   "::: let a b c ::: num 4 5 6"))
 fn <- gnu.parallel.filenames("foobar")
 gnu.parallel.load(fn)
 gnu.parallel.load.lines(fn)
diff --git a/src/optional/R/load-parallel-results.r b/src/optional/R/load-parallel-results.r
index 2cd7e8a1..15f70586 100644
--- a/src/optional/R/load-parallel-results.r
+++ b/src/optional/R/load-parallel-results.r
@@ -20,7 +20,9 @@
 ## LIBRARY FOR READING GNU PARALLEL RESULTS 
 ##
 ## Example:
-## parallel --results my/results/dir --header : 'printf "FOO={foo}\\tBAR={bar}\\n";paste <(seq {bar}) <(seq {bar} -1 1)' :::: <(echo foo; seq 100) <(echo bar; seq 10)
+## parallel --results my/results/dir --header : \
+##   'printf "FOO={foo}\\tBAR={bar}\\n";paste <(seq {bar}) <(seq {bar} -1 1)' \
+##   :::: <(echo foo; seq 100) <(echo bar; seq 10)
 ##
 ## dir="my/results/dir"
 ## filenametable <- load_parallel_results_filenames(dir);