From: Hayashi Naoyuki

I tried to compile with gcc on Tru64, and got the following error.
SDL_systimer.c:45:45: error: operator '&&' has no right operand

It succeeds if changing
#if (defined _POSIX_TIMERS && _POSIX_TIMERS > 0)
to
#if (defined _POSIX_TIMERS && _POSIX_TIMERS + 0 > 0)

--HG--
extra : convert_revision : svn%3Ac70aab31-4412-0410-b14c-859654838e24/trunk%401329

src/timer/linux/SDL_systimer.c

@@ -34,7 +34,7 @@
    for __USE_POSIX199309
    Tommi Kyntola (tommi.kyntola@ray.fi) 27/09/2005
 */
-#if (defined _POSIX_TIMERS && _POSIX_TIMERS > 0)
+#if (defined _POSIX_TIMERS && _POSIX_TIMERS + 0 > 0)
 #include <time.h>
 /*
  * clock_gettime() is missing in my system's glibc, and apparently isn't