[R] Link with C code
richards at pci.upmc.edu
Tue Jan 30 17:17:24 CET 2001
I need to ask a small question about the *recommended* compiler for
Windows, mingw32 gcc 2.95.2. Suppose that I have a file called doit.c, and
a file doit.def which specifies that the function foo() be exported. I need
to link against Rdll.lib, to make doit.dll, which I want to load into R
1.2.1. What are the correct mingw32 commands to do this? After playing
with gcc, dlltools, dllwrap, and S Programming for some time, all I have
come up with is
gcc -O2 -c doit.c -ID:\Rw1021\src\include
dlltool -e doit.exp -l doit.lib --export-all-symbols doit.o
gcc doit.o doit.exp D:\Rw1021\bin\Rdll.lib -o doit.dll
The first line works perfectly, thanks to Sprog, but I cannot get the
compiler to find Rdll.lib. Every time I run the script above, I get the
same mesage that VC++ 6.0 gives when I fail to link against Rdll.lib. Can
anyone help? thanks in advance.
> -----Original Message-----
> From: Patrick Wendel [mailto:p.wendel at ic.ac.uk]
> Sent: Tuesday, January 30, 2001 8:05 AM
> To: r-help at stat.math.ethz.ch
> Subject: [R] Link with C code
> I am using cygwin (latest version) and I managed to generate
> a dll partly
> with rcmd shlib although there was a problem with both the
> resouce file (I
> had to remove "FILEOS VOS__WINDOWS32") and the command line for gcc
> (--shared is not supported for instance).
> So I would like to know which compiler/environment you advise
> to use for
> windows OS.
> Then I could load the library in R but couldn't call any method.
> Is there a function to know which functions have been
> successfully imported
> I've also done the dll in other ways (using gcc and dlltool
> as explained on
> their website and also using VC++) but I had the same result.
> I suppose I missed something in the dll creation but I cannot
> see what.
> Any idea ?
> Many thanks,
> Patrick Wendel
> r-help mailing list -- Read
> Send "info", "help", or "[un]subscribe"
> (in the "body", not the subject !) To:
> r-help-request at stat.math.ethz.ch
r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html
Send "info", "help", or "[un]subscribe"
(in the "body", not the subject !) To: r-help-request at stat.math.ethz.ch
More information about the R-help