[R-SIG-Mac] Building R-devel from Source on Snow Leopard

[John C. Tull]

There appears to be an Apple-supplied gfortran in /usr/bin now, but it  
is i386 arch rather than 64-bit. I'm not sure if you can use it to  
build a 64-bit R or not. It is also version 4.2.1.

John

On Sep 3, 2009, at 3:16 PM, Tony Chiang wrote:

> Sorry, I forgot to mention that I had downloaded and installed the  
> gfortran
> 4.2.3 from here
>
> http://r.research.att.com/tools/#gcc42
>
> dhcp151062:R-devel tc$ gfortran --version
>> GNU Fortran (GCC) 4.2.3
>>
>
> On Thu, Sep 3, 2009 at 3:14 PM, Tony Chiang <tchiang at fhcrc.org> wrote:
>
>> Hi,
>>
>> So I am trying to configure and build the latest of R-devel on one  
>> of the
>> new Macbook Pro's running Snow leopard. I have installed the latest  
>> X-Code
>> tools (downloaded from the Apple Site) and have gcc installed:
>>
>> gcc --versioni686-apple-darwin10-gcc-4.2.1 (GCC) 4.2.1 (Apple Inc.  
>> build
>>> 5646)
>>>
>>
>> So as I am trying to configure, I get this error message:
>>
>> ...cut...
>>
>>> checking for Fortran 77 libraries of gfortran...  -L/usr/local/lib
>>> -L/usr/local/lib/gcc/i686-apple-darwin8/4.2.3
>>> -L/usr/local/lib/gcc/i686-apple-darwin8/4.2.3/../../.. - 
>>> lgfortranbegin
>>> -lgfortran
>>> checking how to get verbose linking output from gcc -std=gnu99... -v
>>> checking for C libraries of gcc -std=gnu99...  -lcrt1.10.6.o
>>> -L/usr/local/lib -L/usr/lib/gcc/i686-apple-darwin10/4.2.1/x86_64
>>> -L/usr/lib/i686-apple-darwin10/4.2.1
>>> -L/usr/lib/gcc/i686-apple-darwin10/4.2.1
>>> -L/usr/lib/gcc/i686-apple-darwin10/4.2.1/../../../i686-apple- 
>>> darwin10/4.2.1
>>> -L/usr/lib/gcc/i686-apple-darwin10/4.2.1/../../.. -lSystem
>>> checking for dummy main to link with Fortran 77 libraries... rm:
>>> conftest.dSYM: is a directory
>>> none
>>> checking for Fortran 77 name-mangling scheme... rm: conftest.dSYM:  
>>> is a
>>> directory
>>> unknown
>>> configure: WARNING: unknown Fortran name-mangling scheme
>>> checking whether gfortran appends underscores to external names...  
>>> unknown
>>> configure: error: cannot use Fortran
>>>
>>
>> I have not seen any messages quite like this on the mailing list.  
>> What is
>> pretty strange is the conftest.dSYM needs to be removed (?) for  
>> some reason
>> but is a directory. Any ideas or suggestions on how to resolve this?
>>
>> Best,
>> --Tony
>>
>
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