On 25 November 2016 at 12:41, Dean Bodenham wrote:
| I have written an R package using Rcpp that has recently been accepted to
CRAN.
| However, on a few systems the installed size ("libs" directory) is much larger
| than on other systems, which leads to a couple of NOTEs:
| https://cran.r-project.org/web/checks/check_results_ffstream.html
|
| Here is an example of this discrepancy that I have observed on two (of my own)
| machines:
|
|
| Operating system | Size
| ----------------------------|---------
| OSX 10.10.5 | 1.1 MB
| Ubuntu 16.04 (Linux Mint 18)| 9.0 MB
|
|
| Has anyone seen this problem before?
|
| The package should survive with the NOTEs, but it would be good to fix it if
| possible.
|
| [Although the various (test) systems on CRAN use different versions of the
| compiler(s), which may affect things, I realise it is more likely that I have
| made a mistake when writing/structuring the code.]
I don't think it is you. Run 'R CMD INSTALL ...' on both systems, I bet one
is running with -g and the other is not. Those add debugging symbols, and
they are HUGE.
Dan Dillon has some experimental code to provide a stripping plugin. Until
then, and just for local tests, do something like this in src/Makevars:
PKG_LIBS= -Wl,-S
This asks the linker to use -S to strip debugging symbols (but not general
symbols, which R needs). On my Ubuntu 16.04 box I get a change from
9.0 mb (default)
to
734 kb (with stripping)
for twelve-fold reduction in size _on the same system_.
If/when we have something more general I am sure it will be announced here.
If you want to play with the plugin hit me and/or Dan (CC'ed).
Dirk
--
http://dirk.eddelbuettel.com | @eddelbuettel | e...@debian.org
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