[Rd] R pkg install should fail for unsuccessful DLL copy on windows?

Toby Hocking tdhock5 @end|ng |rom gm@||@com
Thu May 30 01:16:52 CEST 2019

Hi all,

I am having an issue related to installing packages on windows with
R-3.6.0. When installing a package that is in use, I expected R to stop
with an error. However I am getting a warning that the DLL copy was not
successful, but the overall package installation IS successful. This is
quite dangerous because the old DLL and the new R code could be

I am definitely not the first person to have this issue.
* Matt Dowle reported
https://bugs.r-project.org/bugzilla/show_bug.cgi?id=17478 which was never
* Jim Hester reported
https://bugs.r-project.org/bugzilla/show_bug.cgi?id=17453 which was
apparently addressed in R-3.5.1, via

But I am now having the same issue in R-3.6.0 -- is this a regression in R?
or is there another fix that I can use?

Below is the minimal R code that I used to reproduce the issue. Essentially,
* I start R with --vanilla and set options repos=cloud and warn=2 (which I
expect should convert warnings to errors).
* I do library(penaltyLearning) and then install the package from source,
which results in the
  warnings. I expected there should be an error.

th798 using cmp2986 MINGW64 ~/R
$ R --vanilla -e "options(repos='https://cloud.r-project.org',

R version 3.6.0 (2019-04-26) -- "Planting of a Tree"
Copyright (C) 2019 The R Foundation for Statistical Computing
Platform: x86_64-w64-mingw32/x64 (64-bit)

R is free software and comes with ABSOLUTELY NO WARRANTY.
You are welcome to redistribute it under certain conditions.
Type 'license()' or 'licence()' for distribution details.

R is a collaborative project with many contributors.
Type 'contributors()' for more information and
'citation()' on how to cite R or R packages in publications.

Type 'demo()' for some demos, 'help()' for on-line help, or
'help.start()' for an HTML browser interface to help.
Type 'q()' to quit R.

> options(repos='https://cloud.r-project.org',
Loading required package: data.table
Registered S3 methods overwritten by 'ggplot2':
  method         from
  [.quosures     rlang
  c.quosures     rlang
  print.quosures rlang
trying URL '
Content type 'application/x-gzip' length 2837289 bytes (2.7 MB)
downloaded 2.7 MB

* installing *source* package 'penaltyLearning' ...
** package 'penaltyLearning' successfully unpacked and MD5 sums checked
** using staged installation
** libs
c:/Rtools/mingw_64/bin/g++  -std=gnu++11 -I"C:/PROGRA~1/R/R-36~1.0/include"
-DNDEBUG          -O2 -Wall  -mtune=generic -c interface.cpp -o interface.o
c:/Rtools/mingw_64/bin/g++  -std=gnu++11 -I"C:/PROGRA~1/R/R-36~1.0/include"
-DNDEBUG          -O2 -Wall  -mtune=generic -c largestContinuousMinimum.cpp
-o largestContinuousMinimum.o
largestContinuousMinimum.cpp: In function 'int
largestContinuousMinimum(int, double*, double*, int*)':
largestContinuousMinimum.cpp:38:27: warning: 'start' may be used
uninitialized in this function [-Wmaybe-uninitialized]
       index_vec[0] = start;
c:/Rtools/mingw_64/bin/g++  -std=gnu++11 -I"C:/PROGRA~1/R/R-36~1.0/include"
-DNDEBUG          -O2 -Wall  -mtune=generic -c modelSelection.cpp -o
/usr/bin/sed: -e expression #1, char 1: unknown command: `C'
c:/Rtools/mingw_64/bin/g++ -shared -s -static-libgcc -o penaltyLearning.dll
tmp.def interface.o largestContinuousMinimum.o modelSelection.o
-LC:/PROGRA~1/R/R-36~1.0/bin/x64 -lR
installing to C:/Program
** R
** data
** byte-compile and prepare package for lazy loading
** help
*** installing help indices
  converting help for package 'penaltyLearning'
    finding HTML links ... done
    GeomTallRect                            html
    IntervalRegressionCV                    html
    IntervalRegressionCVmargin              html
    IntervalRegressionInternal              html
    IntervalRegressionRegularized           html
    IntervalRegressionUnregularized         html
    ROChange                                html
    change.colors                           html
    change.labels                           html
    changeLabel                             html
    check_features_targets                  html
    check_target_pred                       html
    coef.IntervalRegression                 html
    demo8                                   html
    featureMatrix                           html
    featureVector                           html
    geom_tallrect                           html
    labelError                              html
    largestContinuousMinimumC               html
    largestContinuousMinimumR               html
    modelSelection                          html
    modelSelectionC                         html
    modelSelectionR                         html
    neuroblastomaProcessed                  html
    oneSkip                                 html
    plot.IntervalRegression                 html
    predict.IntervalRegression              html
    print.IntervalRegression                html
    squared.hinge                           html
    targetIntervalROC                       html
    targetIntervalResidual                  html
    targetIntervals                         html
    theme_no_space                          html
** building package indices
** testing if installed package can be loaded from temporary location
WARNING: moving package to final location failed, copying instead
Warning in file.copy(instdir, dirname(final_instdir), recursive = TRUE,  :
  problem copying C:\Program
to C:\Program
Permission denied
** testing if installed package can be loaded from final location
** testing if installed package keeps a record of temporary installation
* DONE (penaltyLearning)

The downloaded source packages are in
[1] 2
R version 3.6.0 (2019-04-26)
Platform: x86_64-w64-mingw32/x64 (64-bit)
Running under: Windows 10 x64 (build 17134)

Matrix products: default

[1] LC_COLLATE=English_United States.1252
[2] LC_CTYPE=English_United States.1252
[3] LC_MONETARY=English_United States.1252
[5] LC_TIME=English_United States.1252

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base

other attached packages:
[1] penaltyLearning_2018.09.04 data.table_1.12.2

loaded via a namespace (and not attached):
 [1] Rcpp_1.0.1       assertthat_0.2.1 dplyr_0.8.1      crayon_1.3.4
 [5] R6_2.4.0         grid_3.6.0       plyr_1.8.4       magic_1.5-9
 [9] gtable_0.3.0     magrittr_1.5     scales_1.0.0     ggplot2_3.1.1
[13] pillar_1.4.0     rlang_0.3.4      lazyeval_0.2.2   geometry_0.4.1
[17] tools_3.6.0      glue_1.3.1       purrr_0.3.2      munsell_0.5.0
[21] abind_1.4-7      compiler_3.6.0   pkgconfig_2.0.2  colorspace_1.4-1
[25] tidyselect_0.2.5 tibble_2.1.1
th798 using cmp2986 MINGW64 ~/R

related blog post: https://tdhock.github.io/blog/2019/windows-dll/

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