[R] gcc-4.5.2 and install.packages("glmnet")?

[Juergen Rose]

Hi,

is there any chance to install glmnet with gcc-4.5.2? For me it fails on
all systems with:

trying URL
'http://mirrors.softliste.de/cran/src/contrib/glmnet_1.7.tar.gz'
Content type 'application/x-gzip' length 522888 bytes (510 Kb)
opened URL
==================================================
downloaded 510 Kb

* installing *source* package ‘glmnet’ ...
 This package has only been tested with gfortran.
 So some checks are needed.
 R_HOME is /usr/lib64/R
Attempting to determine R_ARCH...
R_ARCH is 
Attempting to detect how R was configured for Fortran 90....
    Unsupported Fortran 90 compiler or Fortran 90
    compilers unavailable! Stop!
ERROR: configuration failed for package ‘glmnet’

How can I get more information, what a problem has happened?

Otherwise I have no problem to compile a small Fortran 90 program:
root at orca:/home/rose/Txt/src/Test/Fortran(57)# cat hello.f90 
program Hello
  print *,'Hello world'
end program Hello
root at orca:/home/rose/Txt/src/Test/Fortran(58)# gfortran -cpp -dM
hello.f90
root at orca:/home/rose/Txt/src/Test/Fortran(59)# ./a.out
 Hello world