FIX BUILD FD_SETSIZE signed

On FreeBSD FD_SETSIZE is unsigned. Cast it to a signed int
for portability.

diff --git a/rts/posix/Select.c b/rts/posix/Select.c
index fb7f38d..8af57ba 100644 (file)
--- a/rts/posix/Select.c
+++ b/rts/posix/Select.c
@@ -141,11 +141,15 @@ awaitEvent(rtsBool wait)
       for(tso = blocked_queue_hd; tso != END_TSO_QUEUE; tso = next) {
        next = tso->link;
 
+      /* On FreeBSD FD_SETSIZE is unsigned. Cast it to signed int
+       * in order to switch off the 'comparison between signed and
+       * unsigned error message
+       */
        switch (tso->why_blocked) {
        case BlockedOnRead:
          { 
            int fd = tso->block_info.fd;
-           if (fd >= FD_SETSIZE) {
+           if (fd >= (int)FD_SETSIZE) {
                barf("awaitEvent: descriptor out of range");
            }
            maxfd = (fd > maxfd) ? fd : maxfd;
@@ -156,7 +160,7 @@ awaitEvent(rtsBool wait)
        case BlockedOnWrite:
          { 
            int fd = tso->block_info.fd;
-           if (fd >= FD_SETSIZE) {
+           if (fd >= (int)FD_SETSIZE) {
                barf("awaitEvent: descriptor out of range");
            }
            maxfd = (fd > maxfd) ? fd : maxfd;