Ignore utime errors for until we restore old behavior for tar + libtar.

ports/tar/nacl.patch

 diff --git a/lib/mktime.c b/lib/mktime.c
 index 16f5b9a..63d7cb1 100644
 --- a/lib/mktime.c
 +++ b/lib/mktime.c
 @@ -141,8 +141,11 @@ ydhms_diff (long int year1, long int yday1, int hour1, int min1, int sec1,
             int year0, int yday0, int hour0, int min0, int sec0)
  {
    verify (C99_integer_division, -1 / 2 == 0);
 +  /* This check looks simply wrong. tar-1.27.1 does not have this check. */
 +#if !defined(__native_client__)
    verify (long_int_year_and_yday_are_wide_enough,
           INT_MAX <= LONG_MAX / 2 || TIME_T_MAX <= UINT_MAX);
 +#endif
  
    /* Compute intervening leap days correctly even if year is negative.
       Take care to avoid integer overflow here.  */
 diff --git a/src/Makefile.in b/src/Makefile.in
 index 86de4cc..64eeb01 100644
 --- a/src/Makefile.in
 +++ b/src/Makefile.in
 @@ -178,7 +178,7 @@ LDFLAGS = @LDFLAGS@
  LIBICONV = @LIBICONV@
  LIBINTL = @LIBINTL@
  LIBOBJS = @LIBOBJS@
 -LIBS = @LIBS@
 +LIBS = @LIBS@ $(EXTRA_LIBS)
  LIB_CLOCK_GETTIME = @LIB_CLOCK_GETTIME@
  LIB_SETSOCKOPT = @LIB_SETSOCKOPT@
  LTLIBICONV = @LTLIBICONV@
+diff --git a/src/extract.c b/src/extract.c
+index f348b82..e536c05 100644
+--- a/src/extract.c
++++ b/src/extract.c
+@@ -255,6 +255,14 @@ set_stat (char const *file_name,
+ 
+          utimbuf.modtime = stat_info->st_mtime;
+ 
++          /* TODO(bradnelson): Remove this when all mounts handle utime. */
++#if defined(__native_client__)
++         if (utime (file_name, &utimbuf) < 0) {
++            if (errno != ENOSYS && errno != EINVAL) {
++             utime_error (file_name);
++            }
++          }
++#else
+          if (utime (file_name, &utimbuf) < 0)
+            utime_error (file_name);
+          else
+@@ -262,6 +270,7 @@ set_stat (char const *file_name,
+              check_time (file_name, utimbuf.actime);
+              check_time (file_name, utimbuf.modtime);
+            }
++#endif
+        }
+ 
+       /* Some systems allow non-root users to give files away.  Once this
 diff --git a/src/tar.c b/src/tar.c
 index 31d7d30..eec331e 100644
 --- a/src/tar.c
 +++ b/src/tar.c
 @@ -37,6 +37,7 @@
  #include "common.h"
  
  #include <getdate.h>
 +#include <locale.h>
  #include <localedir.h>
  #include <rmt.h>
  #include <prepargs.h>
 @@ -1617,7 +1618,7 @@ decode_options (int argc, char **argv)
  
  /* Main routine for tar.  */
  int
 -main (int argc, char **argv)
 +nacl_main (int argc, char **argv)
  {
    set_start_time ();
    program_name = argv[0];