Nice 0.1.5 fails to build on 32bit architecture:

make[1]: Entering directory '/home/abuild/rpmbuild/BUILD/libnice-0.1.5/agent'
  CC       pseudotcp.lo
pseudotcp.c: In function 'pseudo_tcp_socket_get_next_clock':
pseudotcp.c:949:33: error: comparison between signed and unsigned integer expressions [-Werror=sign-compare]
   if (*timeout == 0 || *timeout < now)
                                 ^
pseudotcp.c:194:39: error: comparison between signed and unsigned integer expressions [-Werror=sign-compare]
 #  define min(first, second) ((first) < (second) ? (first) : (second))
                                       ^
pseudotcp.c:953:16: note: in expansion of macro 'min'
     *timeout = min (*timeout, now + CLOSED_TIMEOUT);
                ^
pseudotcp.c:194:60: error: signed and unsigned type in conditional expression [-Werror=sign-compare]
 #  define min(first, second) ((first) < (second) ? (first) : (second))
                                                            ^
pseudotcp.c:953:16: note: in expansion of macro 'min'
     *timeout = min (*timeout, now + CLOSED_TIMEOUT);
                ^
pseudotcp.c:194:39: error: comparison between signed and unsigned integer expressions [-Werror=sign-compare]
 #  define min(first, second) ((first) < (second) ? (first) : (second))
                                       ^
pseudotcp.c:957:14: note: in expansion of macro 'min'
   *timeout = min (*timeout, now + DEFAULT_TIMEOUT);
              ^
pseudotcp.c:194:60: error: signed and unsigned type in conditional expression [-Werror=sign-compare]
 #  define min(first, second) ((first) < (second) ? (first) : (second))
                                                            ^
pseudotcp.c:957:14: note: in expansion of macro 'min'
   *timeout = min (*timeout, now + DEFAULT_TIMEOUT);
              ^
pseudotcp.c:194:39: error: comparison between signed and unsigned integer expressions [-Werror=sign-compare]
 #  define min(first, second) ((first) < (second) ? (first) : (second))
                                       ^
pseudotcp.c:960:16: note: in expansion of macro 'min'
     *timeout = min(*timeout, priv->t_ack + priv->ack_delay);
                ^
pseudotcp.c:194:60: error: signed and unsigned type in conditional expression [-Werror=sign-compare]
 #  define min(first, second) ((first) < (second) ? (first) : (second))
                                                            ^
pseudotcp.c:960:16: note: in expansion of macro 'min'
     *timeout = min(*timeout, priv->t_ack + priv->ack_delay);
                ^
pseudotcp.c:194:39: error: comparison between signed and unsigned integer expressions [-Werror=sign-compare]
 #  define min(first, second) ((first) < (second) ? (first) : (second))
                                       ^
pseudotcp.c:963:16: note: in expansion of macro 'min'
     *timeout = min(*timeout, priv->rto_base + priv->rx_rto);
                ^
pseudotcp.c:194:60: error: signed and unsigned type in conditional expression [-Werror=sign-compare]
 #  define min(first, second) ((first) < (second) ? (first) : (second))
                                                            ^
pseudotcp.c:963:16: note: in expansion of macro 'min'
     *timeout = min(*timeout, priv->rto_base + priv->rx_rto);
                ^
pseudotcp.c:194:39: error: comparison between signed and unsigned integer expressions [-Werror=sign-compare]
 #  define min(first, second) ((first) < (second) ? (first) : (second))
                                       ^
pseudotcp.c:966:16: note: in expansion of macro 'min'
     *timeout = min(*timeout, priv->lastsend + priv->rx_rto);
                ^
pseudotcp.c:194:60: error: signed and unsigned type in conditional expression [-Werror=sign-compare]
 #  define min(first, second) ((first) < (second) ? (first) : (second))
                                                            ^
pseudotcp.c:966:16: note: in expansion of macro 'min'
     *timeout = min(*timeout, priv->lastsend + priv->rx_rto);
                ^
cc1: all warnings being treated as errors
Makefile:501: recipe for target 'pseudotcp.lo' failed
make[1]: *** [pseudotcp.lo] Error 1
make[1]: Leaving directory '/home/abuild/rpmbuild/BUILD/libnice-0.1.5/agent'
Makefile:411: recipe for target 'all' failed