[R-pkg-devel] R-devel installation and libcurl

[peter dalgaard]

> On 16 Oct 2015, at 18:33 , Martyn Plummer <plummerM at iarc.fr> wrote:
> 
> On Fri, 2015-10-16 at 21:46 +1100, Jim Lemon wrote:
>> Hi,
>> I have been attempting to install R-devel to check updated packages for
>> CRAN. After reading the relevant section in R Installation and
>> Administration, searching and a lot of unsuccessful fiddling with
>> "configure", I thought I might as well ask.
>> 
>> Platform: x86_64-pc-linux-gnu (64-bit)
>> Running under: Fedora 21 (Twenty One)
>> 
>> locale:
>> [1] LC_CTYPE=en_US.UTF-8       LC_NUMERIC=C
>> [3] LC_TIME=en_US.UTF-8        LC_COLLATE=en_US.UTF-8
>> [5] LC_MONETARY=en_US.UTF-8    LC_MESSAGES=en_US.UTF-8
>> [7] LC_PAPER=en_US.UTF-8       LC_NAME=C
>> [9] LC_ADDRESS=C               LC_TELEPHONE=C
>> [11] LC_MEASUREMENT=en_US.UTF-8 LC_IDENTIFICATION=C
>> 
>> configure hits the wall when checking for libcurl. I installed libcurl
>> v7.37.0 and while it is recognized, I have not succeeded in getting it to
>> find curl.h (it's in /usr/include/curl/curl.h). R Installation ahd
>> Administration seems to suggest that the path information should be put in
>> MkRules.local. However, that file is nowhere to be found. Neither can I
>> find any variable in "configure" that specifies where to look for curl.h.
>> 
>> I'm sure that this is very simple, but if anyone can provide a method to
>> stop the:
>> 
>> ...
>> checking curl/curl.h usability... no
>> checking curl/curl.h presence... no
>> checking for curl/curl.h... no
>> configure: error: libcurl >= 7.28.0 library and headers are required with
>> support for https
>> 
>> error I would be most grateful.
> 
> This may be a little bit off topic for this list, since it is not an
> issue with your package, but I'll try to answer anyway.

Also, a generic piece of advice: configure doesn't always get its error messages precisely right. Sometimes it is useful to go through the config.log and see exactly what program failed to compile with what error message. It's not that unusual to see an include file test program failing due to wrong compiler flags or libraries. 

-pd

> The header file /usr/include/curl/curl.h is provided by both the 32-bit
> and 64-bit versions of libcurl-devel. I can reproduce your error if I
> have libcurl-devel.i686 installed (which provides the header) but not
> libcurl-devel.x86_64 (which is needed to compile the 64-bit version of
> R). This gives me the following output:
> 
> checking for curl-config... /usr/bin/curl-config
> checking libcurl version ... 7.37.0
> Package libcurl was not found in the pkg-config search path.
> Perhaps you should add the directory containing `libcurl.pc'
> to the PKG_CONFIG_PATH environment variable
> No package 'libcurl' found
> checking curl/curl.h usability... no
> checking curl/curl.h presence... no
> checking for curl/curl.h... no
> configure: error: libcurl >= 7.28.0 library and headers are required
> with support for https
> 
> Martyn
> 
>> Jim
>> 
>> 	[[alternative HTML version deleted]]
>> 
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-- 
Peter Dalgaard, Professor,
Center for Statistics, Copenhagen Business School
Solbjerg Plads 3, 2000 Frederiksberg, Denmark
Phone: (+45)38153501
Email: pd.mes at cbs.dk  Priv: PDalgd at gmail.com