compiling fortran 77 code

I have compiled fortran 77 code for geophysical processing(written by other person).When I tried to change parameters file to allow for larger chunks and larger matrices to be inverted I got this
rm -f *.o 
rm -f birrp
ifort -fast  -Wl -o birrp birrp.f  coherence.f  dataft.f  diagnostic.f  fft.f  filter.f  math.f  rarfilt.f  response.f  rtpss.f  utils.f  weight.f  zlinpack.f  
ifort: command line warning #10157: ignoring option '-W'; argument is of wrong type
filter.f(1): warning #6178: The return value of this FUNCTION has not been defined.   [FILTER]
      complex function filter(f,fpar,npar)
-----------------------^
utils.f(890): warning #7532: The number of arguments is incompatible with intrinsic procedure, assume 'external'.   [DATE]
      call date( 0, time1, year1, month1, day1, hour1, min1, sec1 )
-----------^
/usr/lib/gcc/x86_64-linux-gnu/4.8/../../../x86_64-linux-gnu//libc.a(libc_fatal.o): In function `__libc_message.constprop.0':
(.text+0x13b): relocation truncated to fit: R_X86_64_PC32 against symbol `__abort_msg' defined in .bss section in /usr/lib/gcc/x86_64-linux-gnu/4.8/../../../x86_64-linux-gnu//libc.a(abort.o)
/usr/lib/gcc/x86_64-linux-gnu/4.8/../../../x86_64-linux-gnu//libc.a(libc_fatal.o): In function `__libc_message':
(.text+0x421): relocation truncated to fit: R_X86_64_PC32 against symbol `__abort_msg' defined in .bss section in /usr/lib/gcc/x86_64-linux-gnu/4.8/../../../x86_64-linux-gnu//libc.a(abort.o)
/usr/lib/gcc/x86_64-linux-gnu/4.8/../../../x86_64-linux-gnu//libc.a(gconv_db.o): In function `__gconv_get_modules_db':

I am on Ubuntu 14.04.How should I set the compilation options?My makefile

FC90 = ifort
FCFLAGS= -fast  -Wl

TARGETS= clean  birrp
OBJSOC= birrp.f  coherence.f  dataft.f  diagnostic.f  fft.f  filter.f  math.f  rarfilt.f  response.f  rtpss.f  utils.f  weight.f  zlinpack.f
        
all:  $(TARGETS)

clean:
        rm -f *.o 
        rm -f birrp

birrp:$(OBJSOC)
        $(FC90) $(FCFLAGS) -o $@ $(OBJSOC)  $(LIBS)

# General compile rules

.SUFFIXES: .f .o 

.f90.o:    
    $(FC90) $(FCFLAGS)    -c -o $@ $<