# HG changeset patch
# User Jim Meyering <jim@meyering.net>
# Date 1038908894 0
# Node ID 2995e830608cf0f001327c0dba82cb47742262fd
# Parent  6a1238f585b1068bcedc4204bf8befffd430f5ea
(IS_EINTR): Define.
(safe_read): Use IS_EINTR in place of in-function cpp directives.

diff --git a/lib/safe-read.c b/lib/safe-read.c
--- a/lib/safe-read.c
+++ b/lib/safe-read.c
@@ -33,6 +33,12 @@
 extern int errno;
 #endif
 
+#ifdef EINTR
+# define IS_EINTR(x) ((x) == EINTR)
+#else
+# define IS_EINTR(x) 0
+#endif
+
 #include <limits.h>
 
 #ifndef CHAR_BIT
@@ -77,11 +83,7 @@
     {
       result = read (fd, buf, nbytes_to_read);
     }
-#ifdef EINTR
-  while (result < 0 && errno == EINTR);
-#else
-  while (0);
-#endif
+  while (result < 0 && IS_EINTR (errno));
 
   return (size_t) result;
 }