# [Rd] problem in compililng c code using R CMD SHLIB

Joshua Ulrich josh.m.ulrich at gmail.com
Wed Jun 6 19:12:53 CEST 2012

```On Wed, Jun 6, 2012 at 8:20 AM, Simon Urbanek
<simon.urbanek at r-project.org> wrote:
>
> On Jun 6, 2012, at 6:16 AM, Arathy Ram wrote:
>
>> Hello all,
>> I was trying to compile a simple C program hello.c using R CMD SHLIB
>> hello.c.
>> MY R software residing in C:\Program Files\R\R-2.15.0, and also I have
>> downloaded the Rtools 2.15.0 and it is in C:\Rtools, MY file(hello.c) is in
>> E:\R_dir.
>> I have followed the procedures given below
>> 1. In a new CMD.exe window I have set the path as
>>
>> c:\ Rtools\bin; C:\Rtools\MinGW\bin;C:\Program Files\R\R-2.15.0\bin
>>
>> 2. I have changed the directory to E:\ where my file(hello.c) is residing
>> E:\>cd \R_dir
>> then I have given the command like this
>> E:\>cd \R_dir> R CMD SHLIB hello.c
>> Then I am getting the following message
>> cygwin warning:
>> MS-DOS style path detected: E:/PROGRA~1/R/R-214~1.0/etc/
>> i386/Makeconf
>> Preferred POSIX equivalent is:
>> /cygdrive/e/PROGRA~1/R/R-214~1.0/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
>> Even though I have gone through several discussions in the same topic I am
>> not able to resolve my problem. It would be a great help if somebody knows
>> what exactly the problem and its solution and favorable suggestions.
>
> There is no problem in what you posted - all you posted is merely a note from cygwin that it prefers different path style, but it's perfectly ok and doesn't affect anything. So what exactly is the problem you're having?
>
Probably has something to do with PATH not being set correctly because
the Cygwin warning points to R-2.14.0 on E:, not R-2.15.0 on C:.

> Cheers,
> Simon
>

Best,
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