title: GNUjump not building on Arch Linux
body: <p>I'm trying to build GNUjump on Arch Linux (release 1 Oct. 2014), but i'm getting a strange error, and i don't know what to do.</p>
  
  <p>./configure shows me no error. So, i launch make, and this appears:</p>
  
  <pre><code>/usr/bin/ld: SDL_rotozoom.o: undefined reference to symbol 'sincos@@GLIBC_2.1'
  /usr/lib/libm.so.6: error adding symbols: DSO missing from command line
  collect2: error: ld returned 1 exit status
  </code></pre>
  
  <p>The same Makefile, on a Debian-based PC, works.
  Surely, i'm missing something, but i don't know what.</p>