[Rd] Problem with WARNING...headers with CRLF line endings

cstrato cstrato at aon.at
Wed Sep 15 22:39:11 CEST 2010

Dear Duncan, dear Herve,

Thank you both for your help and suggestions. I think that you are both 

In principle I do not want to put these files in the source tarball (and 
I did not in the past), however because of the way R CMD check works 
this seems to be the only possibility to get rid of the warning message.

I agree that it is weird to get this warning message although these 
files are not in the source tarball.

Since I have a Makefile, as Herve mentions, I can try to remove these 
files in the clean step, which currently is:

	rm -f $(MYOBJ) *.a *.d *.rc

I will try to change this part but I am not sure if this will solve the 

Best regards

On 9/15/10 1:58 AM, Hervé Pagès wrote:
> On 09/14/2010 03:30 PM, Duncan Murdoch wrote:
>> On 14/09/2010 6:08 PM, Hervé Pagès wrote:
>>> On 09/14/2010 02:58 PM, cstrato wrote:
>>>> Dear Herve,
>>>> Thank you for your reply, however maybe I was not quite clear.
>>>> The files xpsDict.h and xpsDict.cxx are automatically created by the
>>>> ROOT framework during compilation on every architecture.
>>> on every architecture... ok
>>> But if they are created during compilation, why do they need to be
>>> included in the source tarball? They are just temporary files right?
>>> Or I'm missing something...
>>>> This means they
>>>> are created on Linux and Mac with LF line endings, but on Windows with
>>>> CRLF line endings. However, they are created only if they do not
>>>> already
>>>> exist, and thus are not in the source tarball.
>>> I guess you mean they are not part of the source *tree*.
>>>> For testing purposes I have just added both files with LF line endings
>>>> to the source tarball and compiled it on Windows w/o problems.
>>>> Furthermore, the size of "xps_1.9.6.tar.gz" increases only from 4MB to
>>>> 4.3MB. Thus in principle I could upload both files to SVN for BioC 2.7,
>>>> and this should eliminate the warning message. What is your opinion?
>>> I still don't understand why you want to have them in the source
>>> tarball.
>> I think he doesn't want to put them in the source tarball, but because
>> of the way R CMD check works, he may have to.
>> It appears that R CMD check builds those files, and then checks for CRLF
>> endings on all files. If it did the CRLF check first, it wouldn't see
>> them and complain. The problem with this change is that some packages
>> might create files with CRLF endings on all platforms, and then check
>> *should* complain about them.
> I see your point but, on the other hand, and more generally speaking,
> you expect 'R CMD check' to check the source files i.e. the files that
> belong to the source tarball, and not temporary compilation/installation
> products that 'R CMD INSTALL' didn't remove (for whatever reason).
> It's weird to get a message like:
> * checking line endings in C/C++/Fortran sources/headers ... WARNING
> Found the following sources/headers with CR or CRLF line endings:
> src/xpsDict.h
> if there is no such file in the source tarball.
>> My advice would be not to put them in the tarball, and ignore the
>> warning. Or write a Makevars.win that fixes the line endings so that
>> check is happy.
> Yes and since he already uses a Makefile, it should be easy to remove
> those files at the end of installation so they don't end up in the
> tarball anymore. Wouldn't that also be enough to silent 'R CMD check'?
> Perhaps package authors should really make sure that src/ gets
> cleaned after the installation step of 'R CMD build' (this step is
> performed only if the package has vignettes). Then it shouldn't matter
> whether 'R CMD check' checks for CRLF endings after or before
> installing the package.
> Cheers,
> H.
>> Duncan Murdoch

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