[R] Yellow dog linux install?

[Ben Snyder]

Hello folks

I am attempting to install R on a series of Apple G5 machines which are 
running Yellow Dog Linux 6.0.  Has anyone had success with this, and is 
there something I should be doing which I am not?
Upon configure, I receive the error message:

checking whether mixed C/Fortran code can be run... configure: WARNING: 
cannot run mixed C/Fortran code
configure: error: Maybe check LDFLAGS for paths to Fortran libraries?

libg2c.so is found in the following places:
/usr/lib/libg2c.so.0
/usr/lib/libg2c.so.0.0.0
/usr/lib/gcc/ppc64-yellowdog-linux/3.4.6/libg2c.so
/usr/lib/gcc/ppc64-yellowdog-linux/3.4.6/64/libg2c.so

So I've tried the following four LDFLAGS variants, both by exporting 
LDFLAGS in the bash shell and setting it in config.site:
LDFLAGS='-L/usr/lib -L/usr/lib/gcc/ppc64-yellowdog-linux/3.4.6 
-L/usr/lib/gcc/ppc64-yellowdog-linux/3.4.6/64'
LDFLAGS='-L/usr/lib'
LDFLAGS='-L/usr/lib/gcc/ppc64-yellowdog-linux/3.4.6'
LDFLAGS='-L/usr/lib/gcc/ppc64-yellowdog-linux/3.4.6/64'

Still no luck.  Any ideas?

Thanks,
-ben