[Click] Unable to build on ARM platform

[Roberto Riggio]

I get this error when I try to build click for an ARM target:

../lib/args.cc: In function 'uint32_t multiply_factor(uint32_t, 
uint32_t, int, int&)':
../lib/args.cc:1183:39: error: no matching function for call to 
'int_multiply(uint32_t&, int&, uint32_t&, uint32_t&)'
../lib/args.cc:1186:38: error: no matching function for call to 
'int_multiply(uint32_t&, int&, uint32_t&, uint32_t&)'

this seems to be due to the fact that in integers.hh the int_multiply 
template is instantiated only
for i386 targets.

R.