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-rw-r--r--sysdeps/generic/bits/select.h23
1 files changed, 18 insertions, 5 deletions
diff --git a/sysdeps/generic/bits/select.h b/sysdeps/generic/bits/select.h
index 98f1002b01..f886aec210 100644
--- a/sysdeps/generic/bits/select.h
+++ b/sysdeps/generic/bits/select.h
@@ -23,13 +23,26 @@
 
 /* We don't use `memset' because this would require a prototype and
    the array isn't too big.  */
-#define __FD_ZERO(set) \
+#ifdef __USE_XOPEN
+# define __FD_ZERO(s) \
   do {									      \
     unsigned int __i;							      \
-    __fd_set *__arr = (set);						      \
+    __fd_set *__arr = (s);						      \
     for (__i = 0; __i < sizeof (__fd_set) / sizeof (__fd_mask); ++__i)	      \
       __arr->fds_bits[__i] = '\0';					      \
   } while (0)
-#define __FD_SET(d, set)     ((set)->fds_bits[__FDELT(d)] |= __FDMASK(d))
-#define __FD_CLR(d, set)     ((set)->fds_bits[__FDELT(d)] &= ~__FDMASK(d))
-#define __FD_ISSET(d, set)   (((set)->fds_bits[__FDELT(d)] & __FDMASK(d)) != 0)
+# define __FD_SET(d, s)     ((s)->fds_bits[__FDELT(d)] |= __FDMASK(d))
+# define __FD_CLR(d, s)     ((s)->fds_bits[__FDELT(d)] &= ~__FDMASK(d))
+# define __FD_ISSET(d, s)   (((s)->fds_bits[__FDELT(d)] & __FDMASK(d)) != 0)
+#else
+# define __FD_ZERO(s) \
+  do {									      \
+    unsigned int __i;							      \
+    __fd_set *__arr = (s);						      \
+    for (__i = 0; __i < sizeof (__fd_set) / sizeof (__fd_mask); ++__i)	      \
+      __arr->__fds_bits[__i] = '\0';					      \
+  } while (0)
+# define __FD_SET(d, s)     ((s)->__fds_bits[__FDELT(d)] |= __FDMASK(d))
+# define __FD_CLR(d, s)     ((s)->__fds_bits[__FDELT(d)] &= ~__FDMASK(d))
+# define __FD_ISSET(d, s)   (((s)->__fds_bits[__FDELT(d)] & __FDMASK(d)) != 0)
+#endif