hi
i have old source codes in f77, written some 20 yr back. the code in its parent form gets compiled using ifort. however if any change is made or file is edited without disturbing code (say if i rename input data file in source code or delete some extra line) it shows lot of errors and aborts compilation.
the f77 or gfortran says fort77 x.f
/usr/lib/gcc/x86_64-linux-gnu/4.8/../../../../lib/libf2c.so: undefined reference to `MAIN__'
collect2: error: ld returned 1 exit status
i am using ubuntu 14.04 ifort version 16 (composer ed)
what should i do
anand