Re: grub2 boot root-on-zfs errors

[Beeblebrox <zaphod@berentweb.com>]

The patched file is giving me an error. I tried patching several
times, but keep getting same error. Most likely some stupid error on
my part:
grub-core/osdep/unix/platform.c:43:4: error: expected expression
   FILE *fp = fdopen (fd, "r");
   ^
grub-core/osdep/unix/platform.c:44:20: error: expected expression
   get_ofpathname (const char *dev)
                   ^
grub-core/osdep/unix/platform.c:48:18: error: use of undeclared identifier
      'fp'
   while (!feof (fp))
                 ^
/usr/include/stdio.h:489:43: note: expanded from macro 'feof'
#define feof(p)         (!__isthreaded ? __sfeof(p) : (feof)(p))
                                                 ^
/usr/include/stdio.h:483:23: note: expanded from macro '__sfeof'
#define __sfeof(p)      (((p)->_flags & __SEOF) != 0)
                           ^
In file included from grub-core/osdep/platform_unix.c:2:
grub-core/osdep/unix/platform.c:48:18: error: use of undeclared identifier
      'fp'
/usr/include/stdio.h:489:55: note: expanded from macro 'feof'
#define feof(p)         (!__isthreaded ? __sfeof(p) : (feof)(p))
                                                             ^
In file included from grub-core/osdep/platform_unix.c:2:
grub-core/osdep/unix/platform.c:56:53: error: use of undeclared identifier
      'fp'
      r = fread (ret + offset, 1, alloced - offset, fp);
                                                    ^
grub-core/osdep/unix/platform.c:60:12: error: use of undeclared identifier
      'fp'
   fclose (fp);


Patched section currently looks like:
31   static char *
32   get_ofpathname (const char *dev)
33   {
34    size_t alloced = 4096;
35   char *ret = xmalloc (alloced);
36   size_t offset = 0;
37    int fd;
38   pid_t pid;
39
40   pid = grub_util_exec_pipe ((const char * []){ "ofpathname", dev,
NULL }, &fd);
41   if (!pid)
42
43   FILE *fp = fdopen (fd, "r");
44   get_ofpathname (const char *dev)
45   if (!fp)
46     goto fail;
47
48   while (!feof (fp))
49     {
50       size_t r;
51    if (alloced == offset)
52       {
53         alloced *= 2;
54         ret = xrealloc (ret, alloced);
55       }
56      r = fread (ret + offset, 1, alloced - offset, fp);
57      offset += r;
58    }
59
60   fclose (fp);