src/java.base/unix/classes/sun/nio/fs/UnixConstants.java.template

*** 25,34 ****
--- 25,38 ----
   *
   */
  
  @@END_COPYRIGHT@@
  
+ #ifdef __linux__
+ #define _GNU_SOURCE
+ #endif
+ 
  #include <stdio.h>
  #include <errno.h>
  #include <unistd.h>
  #include <fcntl.h>
  #include <sys/stat.h>
*** 68,77 ****
--- 72,90 ----
  #else
      // not supported (dummy values will not be used at runtime).
      static final int PREFIX_O_NOFOLLOW = 00;
  #endif
  
+ #ifdef O_DIRECT
+     static final int PREFIX_DIRECT = O_DIRECT;
+ #elif F_NOCACHE
+     static final int PREFIX_DIRECT = F_NOCACHE;
+ //#elif DIRECTIO_ON
+ //    static final int PREFIX_DIRECT = DIRECTIO_ON;
+ #else
+     static final int PREFIX_DIRECT = 00;
+ #endif
  
      static final int PREFIX_S_IAMB =
          (S_IRUSR|S_IWUSR|S_IXUSR|S_IRGRP|S_IWGRP|S_IXGRP|S_IROTH|S_IWOTH|S_IXOTH);
      static final int PREFIX_S_IRUSR = S_IRUSR;
      static final int PREFIX_S_IWUSR = S_IWUSR;