linking problem under F90

[luer21]

I am trying to run a simple code(hello.f90) under linux using F90. (code is shown as follows):

> > program hello
> > !
> > implicit none
> > !
> > write ( *, '(a)' ) ' '
> > write ( *, '(a)' ) 'hello:'
> > write ( *, '(a)' ) ' '
> > write ( *, '(a)' ) ' hello, world!'
> > write ( *, '(a)' ) ' '
> >
> > stop
> > end

when I compiled it, it was fine:

>ifc -w90 -c -o -quiet hello.o hello.f90

but linking showed problems:

>/compat/linux/usr/bin/ld hello.o

/compat/linux/usr/bin/ld: warning: cannot find entry symbol _start; defaulting to 08048074
hello.o: In function `MAIN__':
hello.o(.text+0x10): undefined reference to `__intel_proc_init'
hello.o(.text+0x1a): undefined reference to `for_set_reentrancy'
hello.o(.text+0x52): undefined reference to `for_write_seq_fmt'
hello.o(.text+0x8a): undefined reference to `for_write_seq_fmt'
hello.o(.text+0xc2): undefined reference to `for_write_seq_fmt'
hello.o(.text+0xfa): undefined reference to `for_write_seq_fmt'
hello.o(.text+0x141): undefined reference to `for_write_seq_fmt'
hello.o(.text+0x158): undefined reference to `for_stop_core'
I do not know if my command is not correct or some other problems. could anyone help solve this problem?

thanks!

[Steven_L_Intel1]

You should link using ifc (or ifort if 8.0), as the Fortran driver supplies the necessary libraries. If you must use ld directly, see the Fortran User Manual for the libraries to use.

[luer21]

I tried as you said, but it did not work. I just saw an old message on the board about installing intel fortran complier on FreeBSD. you metioned FreeBSD isn't one of the supported platforms. actually our fortran complier is installed on FreeBSD. Is that the real reason caused such a problem?

[TimP]

Check that the compiler environment paths are set up for the linker to find the libraries installed by the Intel compiler. Non-support of FreeBSD may mean only that someone must set up those paths manually. The environment variable scripts which come with the compiler are provided to accomplish this under tcsh or bash, when running on linux.