[Rcpp-devel] Request for help with compiling Rcpp example
Richard Chandler
richard.chandlers at gmail.com
Fri Oct 14 16:43:16 CEST 2011
You can turn it off by setting the following environment variable
CYGWIN=nodosfilewarning
Richard
On Fri, Oct 14, 2011 at 10:39 AM, Dirk Eddelbuettel <edd at debian.org> wrote:
>
> Hi Kent,
>
> On 14 October 2011 at 16:00, Jian Kang wrote:
> | Hi, Dirk,
> |
> | Sorry for delay.
> |
> | I tried to install the R and Rtools again, and run the program again,
> then it
> | works.
>
> Excellent!
>
> | But here is some warnings, I am not sure whether this is OK in the
> future.
> |
> | Compilation argument:
> | C:/R/Rsoft/bin/i386/R CMD SHLIB file7e446574.cpp 2>
> | file7e446574.cpp.err.txt
> | g++ -I"C:/R/Rsoft/include" -I"C:/R/Rsoft/library/Rcpp/include"
> -O2
> | -Wall -c file7e446574.cpp -o file7e446574.o
> | g++ -shared -s -static-libgcc -o file7e446574.dll tmp.def file7e446574.o
> C:/R/
> | Rsoft/library/Rcpp/lib/i386/libRcpp.a -LC:/R/Rsoft/bin/i386 -lR
> | cygwin warning:
> | MS-DOS style path detected: C:/R/Rsoft/etc/i386/Makeconf
> | Preferred POSIX equivalent is: /cygdrive/c/R/Rsoft/etc/i386/Makeconf
> | CYGWIN environment variable option "nodosfilewarning" turns off this
> | warning.
> | Consult the user's guide for more details about POSIX paths:
> | http://cygwin.com/cygwin-ug-net/using.html#using-pathnames
>
> That started with more recent Cygwin / MinGW versions. Google for this, I
> think there were tricks to turn it off. This came up on r-help once or
> twice
> too.
>
> But to reiterate: it is just a warning, and it has nothing to do with Rcpp.
>
> Dirk
>
>
> | Thank you very much.
> |
> | Best,
> |
> | Kent
> |
> |
> | On Thu, Oct 13, 2011 at 6:46 PM, Dirk Eddelbuettel <edd at debian.org>
> wrote:
> |
> |
> | On 13 October 2011 at 18:15, Jian Kang wrote:
> | | Thanks for your reply.
> | |
> | | Here is the response of 'Hello World' program:
> | |
> | | > src='#include <iostream>
> | | + using namespace std;
> | | + void main()
> | | + {
> | | + cout << "Hello World!" << endl;
> | | + cout << "Welcome to C++ Programming" << endl;
> | | + }'
> | | >
> | | > fx <- cxxfunction(src,plugin = "Rcpp",verbose=T)
> |
> | PBKAC -- wrong call of cxxfunction(). You can see below how the
> generated
> | code does *not* include your actual function.
> |
> | The correct idiom is
> |
> | fx <- cxxfunction(signature(), body=src,plugin =
> "Rcpp",verbose=TRUE)
> |
> | Dirk
> |
> |
> | | >> setting environment variables:
> | | PKG_LIBS = C:/R/Rsoft/library/Rcpp/lib/i386/libRcpp.a
> | |
> | | >> LinkingTo : Rcpp
> | | CLINK_CPPFLAGS = -I"C:/R/Rsoft/library/Rcpp/include"
> | |
> | | >> Program source :
> | |
> | | 1 :
> | | 2 : // includes from the plugin
> | | 3 :
> | | 4 : #include <Rcpp.h>
> | | 5 :
> | | 6 :
> | | 7 : #ifndef BEGIN_RCPP
> | | 8 : #define BEGIN_RCPP
> | | 9 : #endif
> | | 10 :
> | | 11 : #ifndef END_RCPP
> | | 12 : #define END_RCPP
> | | 13 : #endif
> | | 14 :
> | | 15 : using namespace Rcpp;
> | | 16 :
> | | 17 :
> | | 18 : // user includes
> | | 19 :
> | | 20 :
> | | 21 : // declarations
> | | 22 : extern "C" {
> | | 23 : SEXP file3a1c304e( ) ;
> | | 24 : }
> | | 25 :
> | | 26 : // definition
> | | 27 :
> | | 28 : SEXP file3a1c304e( ){
> | | 29 : BEGIN_RCPP
> | | 30 :
> | | 31 : END_RCPP
> | | 32 : }
> | | 33 :
> | | 34 :
> | | Compilation argument:
> | | C:/R/Rsoft/bin/i386/R CMD SHLIB file3a1c304e.cpp 2>
> | | file3a1c304e.cpp.err.txt
> | | g++ -I"C:/R/Rsoft/include" -I"C:/R/Rsoft/library/Rcpp/include"
>
> | -O2
> | | -Wall -c file3a1c304e.cpp -o file3a1c304e.o
> | | g++ -shared -s -static-libgcc -o file3a1c304e.dll tmp.def
> file3a1c304e.o
> | C:/R/
> | | Rsoft/library/Rcpp/lib/i386/libRcpp.a -LC:/R/Rsoft/bin/i386 -lR
> | | cygwin warning:
> | | MS-DOS style path detected: C:/R/Rsoft/etc/i386/Makeconf
> | | Preferred POSIX equivalent is:
> /cygdrive/c/R/Rsoft/etc/i386/Makeconf
> | | CYGWIN environment variable option "nodosfilewarning" turns off
> this
> | | warning.
> | | Consult the user's guide for more details about POSIX paths:
> | | http://cygwin.com/cygwin-ug-net/using.html#using-pathnames
> | | Error in as.function.default(c(value, if (is.null(bd) ||
> is.list(bd))
> | list(bd)
> | | else bd), :
> | | invalid formal argument list for "function"
> | |
> | | Here, I also tried the test by Hadley,
> | |
> | | _devel()
> | | cygwin warning:
> | | MS-DOS style path detected: C:/R/Rsoft/etc/i386/Makeconf
> | | Preferred POSIX equivalent is:
> /cygdrive/c/R/Rsoft/etc/i386/Makeconf
> | | CYGWIN environment variable option "nodosfilewarning" turns off
> this
> | | warning.
> | | Consult the user's guide for more details about POSIX paths:
> | | http://cygwin.com/cygwin-ug-net/using.html#using-pathnames
> | | gcc -I"C:/R/Rsoft/include" -I"C:/R/Rsoft/library/Rcpp/include"
>
> | -O3
> | | -Wall -std=gnu99 -c foo.c -o foo.o
> | | gcc -shared -s -static-libgcc -o foo.dll tmp.def foo.o
> C:/R/Rsoft/library
> | /Rcpp/
> | | lib/i386/libRcpp.a -LC:/R/Rsoft/bin/i386 -lR
> | | [1] TRUE
> | |
> | | Sorry that I don't really get it how to rebuild R packages from
> source.
> | |
> | | Thanks,
> | |
> | | Kent
> | |
> | | On Thu, Oct 13, 2011 at 5:11 PM, Hadley Wickham <hadley at rice.edu>
> wrote:
> | |
> | | > My best guess is that you have not installed the Rtools
> | correctly. Can
> | | you
> | | > compile a simple 'hello, world' example in C or C++? Can you
> | rebuild R
> | | > packages from source?
> | |
> | | I wrote an function to check that you have a valid R
> development
> | | environment (with help from Simon Urbanek) for devtools. See
> code
> | | below - and check with has_devel()
> | |
> | | Hadley
> | |
> | |
> | | has_devel <- function() {
> | | foo_path <- file.path(tempdir(), "foo.c")
> | |
> | | cat("void foo(int *bar) { *bar=1; }\n", file = foo_path)
> | | on.exit(unlink(foo_path))
> | |
> | | R("CMD SHLIB foo.c", tempdir())
> | | dylib <- file.path(tempdir(), paste("foo",
> .Platform$dynlib.ext,
> | sep=''))
> | | on.exit(unlink(dylib), add = TRUE)
> | |
> | | dyn.load(dylib)
> | | on.exit(dyn.unload(dylib), add = TRUE)
> | |
> | | stopifnot(do.call(".C", list("foo",0L))[[1]] == 1L)
> | | TRUE
> | | }
> | |
> | | R <- function(options, path = tempdir()) {
> | | r_path <- shQuote(file.path(R.home("bin"), "R"))
> | | in_dir(path, system_check(paste(r_path, options)))
> | | }
> | |
> | | system_check <- function(cmd) {
> | | res <- system(cmd)
> | | if (res != 0) {
> | | stop("Command failed (", res, ")", call. = FALSE)
> | | }
> | | invisible(TRUE)
> | | }
> | |
> | | in_dir <- function(dir, code) {
> | | cur <- getwd()
> | | setwd(dir)
> | | on.exit(setwd(cur))
> | |
> | | force(code)
> | | }
> | |
> | | --
> | | Assistant Professor / Dobelman Family Junior Chair
> | | Department of Statistics / Rice University
> | | http://had.co.nz/
> | | _______________________________________________
> | | Rcpp-devel mailing list
> | | Rcpp-devel at lists.r-forge.r-project.org
> | | https://lists.r-forge.r-project.org/cgi-bin/mailman/listinfo/
> | rcpp-devel
> | |
> | |
> |
> | --
> | "Outside of a dog, a book is a man's best friend. Inside of a dog, it
> is
> | too
> | dark to read." -- Groucho Marx
> |
> |
>
> --
> "Outside of a dog, a book is a man's best friend. Inside of a dog, it is
> too
> dark to read." -- Groucho Marx
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