#undef close
+#if defined EINTR && ((defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__)
+
+/* EINTR handling for close(), open().
+ These functions can return -1/EINTR even though we don't have any
+ signal handlers set up, namely when we get interrupted via SIGSTOP. */
+
+static int
+nonintr_close (int fd)
+{
+ int retval;
+
+ do
+ retval = close (fd);
+ while (retval < 0 && errno == EINTR);
+
+ return retval;
+}
+#define close nonintr_close
+
+static int
+nonintr_open (const char *pathname, int oflag, mode_t mode)
+{
+ int retval;
+
+ do
+ retval = open (pathname, oflag, mode);
+ while (retval < 0 && errno == EINTR);
+
+ return retval;
+}
+#undef open /* avoid warning on VMS */
+#define open nonintr_open
+
+#endif
+
+
/* Execute a command, optionally redirecting any of the three standard file
descriptors to /dev/null. Return its exit code.
If it didn't terminate correctly, exit if exit_on_error is true, otherwise