tcsh user failed to call library in ksh program

Hi folks,

I'm trying to organize functions in my ksh program into libraries.
If I run my program as any ksh user it will succeed.
Only when I run my program as tcsh user (i.e oracle) I failed.

Example

The ksh code:

tornado:/tmp # cat nir.ksh 
#! /bin/ksh

cdromPath=`pwd`
FPATH=${cdromPath}/lib
infra_lib > /dev/null
slogen

The library code:

tornado:/tmp> cd lib/
tornado:/tmp/lib> cat infra_lib 
############################################################################################


#------------------------------------------------------------------
slogen()
{
flow
flow ; echo "Installation version 5.0"; flow
echo "\n\n"
sleep 2
}
#--------------------------------------------------------------------
#------------------------------------------------------------------
flow()
{
   i=0
   until [ i -eq 55 ] ; do
     echo "$symbol\c" ; i=`expr $i + 1`
   done
   echo "\n"
   symbol="-"
}
#------------------------------------------------------------------
tornado:/tmp # su - nsternfe
No mail for nsternfe
tornado:/home/nsternfe> echo $SHELL
/bin/ksh
tornado:/home/nsternfe> cd /tmp
tornado:/tmp> ./nir.ksh 
./nir.ksh[5]: infra_lib: function not defined by /tmp/lib/infra_lib


-------------------------------------------------------

Installation version 5.0
-------------------------------------------------------

Now I'm trying to run the ksh as user oracle:

tornado:/tmp # su - oracle
tornado:/home/oracle > 
tornado:/home/oracle > cd /tmp
tornado:/tmp > echo $SHELL
/bin/tcsh
tornado:/tmp > ./nir.ksh 
./nir.ksh[6]: slogen: not found

As you can see,the function slogen in the library can not be found.

How should I configure tcsh users to identify libraries?

Thanks in advance,
Nir

OK folks,I found a solution:
chmod -R 666 ${cdromPath}/lib solve my problem.

Nir