#!/bin/sh

# From version 3.1 onwards, gcc changed the -m<option> to -f<option> for
# a series of versions.  We test them here.  If the -m<option> form is
# allowed, we return the -m form.  If it accepts the -f<option>, we
# return the -f form.  If it is not a gcc, we return nothing.
if type gcc > /dev/null ; then 
   echo 'main() {}' > /tmp/ciao_test_$$.c
   gcc -malign-functions=2 /tmp/ciao_test_$$.c -o \
       /tmp/ciao_test_$$.exe 2> /tmp/ciao_error_$$.err
   if test -s /tmp/ciao_error_$$.err ; then
      echo -fno-strict-aliasing -fomit-frame-pointer -falign-loops=2 -falign-jumps=2 -falign-functions=2
   else
      echo -fno-strict-aliasing -fomit-frame-pointer -malign-loops=2 -malign-jumps=2 -malign-functions=2
   fi
else
   echo 
fi

# Get rid of the now unneeded intermediate files

/bin/rm -f /tmp/ciao_test_$$.* /tmp/ciao_error_$$.err