Building R-devel from Source on Snow Leopard

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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