[gmx-users] Compilation error

[vidhya sankar]

Dear Gromacs user Thank you for your previous reply
         When i Compile gromacs 4.5.6 I have Gor following error

collect2: ld returned 1 exit status
make[3]: *** [grompp] Error 1
make[3]: Leaving directory `/root/gromacs-4.5.6/src/kernel'
make[2]: *** [all-recursive] Error 1
make[2]: Leaving directory `/root/gromacs-4.5.6/src'
make[1]: *** [all] Error 2
make[1]: Leaving directory `/root/gromacs-4.5.6/src'
make: *** [all-recursive] Error 1

I configure with Following Command
./configure --enable-double --with-fft=fftpack  --program-suffix=_d

I Have fftw3.3.2 but i have Not used that I am using the deh=fault fftpack 
How to Solve this error
What  went wrong?

I am using gcc 4.6.3 in Ubunt12.04 OS already I have Successfully installed gromacs 4.6
it run well 

Thanks in ADVANCE